SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933            [X]

     File No. 2-94608

     Pre-Effective Amendment No.                                   [ ]

     Post-Effective Amendment No. 44                               [X]

                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940    [X]

     File No. 811-4165

     Amendment No. 46                                              [X]

                        (Check appropriate box or boxes.)



                    AMERICAN CENTURY TARGET MATURITIES TRUST
--------------------------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)


                     4500 MAIN STREET, KANSAS CITY, MO 64111
--------------------------------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)


       Registrant's Telephone Number, including Area Code: (816) 531-5575


         CHARLES A. ETHERINGTON, 4500 MAIN STREET, KANSAS CITY, MO 64111
--------------------------------------------------------------------------------
                     (Name and Address of Agent for Service)


       Approximate Date of Proposed Public Offering: February 1, 2008

It is proposed that this filing will become effective (check appropriate box)

     [ ] immediately upon filing pursuant to paragraph (b)
     [X] on February 1, 2008 pursuant to paragraph (b)
     [ ] 60 days after filing pursuant to paragraph (a)(1)
     [ ] on(date)pursuant to paragraph (a)(1)
     [ ] 75 days after filing pursuant to paragraph (a)(2)
     [ ] on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

     [ ] This post-effective amendment designates a new effective date for a
         previously filed post-effective amendment.





February 1, 2008 AMERICAN CENTURY INVESTMENTS Prospectus Target 2010 Fund Target 2015 Fund Target 2020 Fund Target 2025 Fund THE SECURITIES AND EXCHANGE COMMISSION HAS NOT APPROVED OR DISAPPROVED THESE SECURITIES OR PASSED UPON THE ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. American Century Investment Services, Inc., Distributor [american century investments logo and text logo] Table of Contents AN OVERVIEW OF THE FUNDS . . . . . . . . . . . . . . . . . . 2 FUND PERFORMANCE HISTORY . . . . . . . . . . . . . . . . . . 3 FEES AND EXPENSES . . . . . . . . . . . . . . . . . . . . . . 7 OBJECTIVES, STRATEGIES AND RISKS . . . . . . . . . . . . . . 9 BASICS OF FIXED-INCOME INVESTING . . . . . . . . . . . . . . 12 MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . 14 INVESTING DIRECTLY WITH AMERICAN CENTURY . . . . . . . . . . 16 INVESTING THROUGH A FINANCIAL INTERMEDIARY . . . . . . . . . 18 ADDITIONAL POLICIES AFFECTING YOUR INVESTMENT . . . . . . . .19 SHARE PRICE AND DISTRIBUTIONS . . . . . . . . . . . . . . . .23 TAXES . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 MULTIPLE CLASS INFORMATION . . . . . . . . . . . . . . . . . 27 FINANCIAL HIGHLIGHTS . . . . . . . . . . . . . . . . . . . . 28 [GRAPHIC OF TRIANGLE] THIS SYMBOL IS USED THROUGHOUT THE BOOK TO HIGHLIGHT DEFINITIONS OF KEY INVESTMENT TERMS AND TO PROVIDE OTHER HELPFUL INFORMATION. American Century Investment Services, Inc., Distributor ©2008 American Century Proprietary Holdings, Inc. All rights reserved. The American Century Investments logo, American Century and American Century Investments are service marks of American Century Proprietary Holdings, Inc. AN OVERVIEW OF THE FUNDS WHAT IS THE FUNDS' INVESTMENT OBJECTIVE? The funds seek the highest return consistent with investment in U.S. Treasury securities. WHAT ARE THE FUNDS' PRIMARY INVESTMENT STRATEGIES AND PRINCIPAL RISKS? The funds invest primarily in zero-coupon U.S. Treasury securities and their equivalents. Each fund invests in different maturities of these DEBT SECURITIES and has different interest rate risks. The following chart shows the differences among the funds' primary investments and principal risks. It is designed to help you compare these funds with each other; it should not be used to compare these funds with other mutual funds. [GRAPHIC OF TRIANGLE] DEBT SECURITIES INCLUDE FIXED-INCOME INVESTMENTS SUCH AS NOTES, BONDS, COMMERCIAL PAPER AND U.S. TREASURY SECURITIES. PRIMARY FUND INVESTMENTS PRINCIPAL RISKS ------------------------------------------------------------------------------ Shorter Term Target 2010 Zero-coupon Lowest interest Less Volatile U.S. Treasury rate risk securities* ---------------------------------------------------------- Target 2015 Zero-coupon Medium interest U.S. Treasury rate risk securities* ---------------------------------------------------------- Target 2020 Zero-coupon High interest U.S. Treasury rate risk securities* ---------------------------------------------------------- Longer Term Target 2025 Zero-coupon Highest interest More Volatile U.S. Treasury rate risk securities* ------------------------------------------------------------------------------ *INCLUDING ZERO-COUPON U.S. TREASURY EQUIVALENTS. Each fund is managed to mature in the year identified in its name; therefore each fund's weighted average maturity is different. Funds with longer weighted average maturities have the most volatile share prices. Each fund will be liquidated near the end of its target maturity year. Securities issued or guaranteed by the U.S. Treasury and certain U.S. government agencies or instrumentalities, such as the Government National Mortgage Association (Ginnie Mae), are supported by the full faith and credit of the U.S. government. Securities issued or guaranteed by other U.S. government agencies or instrumentalities, such as the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), and the Federal Home Loan Bank are not guaranteed by the U.S. Treasury or supported by the full faith and credit of the U.S. government. However, these agencies or instrumentalities are authorized to borrow from the U.S. Treasury to meet their obligations. At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the funds. [GRAPHIC OF TRIANGLE] AN INVESTMENT IN THE FUNDS IS NOT A BANK DEPOSIT, AND IT IS NOT INSURED OR GUARANTEED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION (FDIC) OR ANY OTHER GOVERNMENT AGENCY. A more detailed description of the funds' investment strategies and risks may be found under the heading OBJECTIVES, STRATEGIES AND RISKS, which begins on page 9. ------ 2 FUND PERFORMANCE HISTORY TARGET 2010 FUND, TARGET 2015 FUND, TARGET 2020 FUND, TARGET 2025 FUND Annual Total Returns The following bar charts show the performance of the funds' Investor Class shares for each of the last 10 calendar years. They indicate the volatility of the funds' historical returns from year to year. Account fees are not reflected in the charts below. If they had been included, returns would be lower than those shown. The returns of the funds' other class of shares will differ from those shown in the chart, depending on the expenses of that class. TARGET 2010 FUND - INVESTOR CLASS


The highest and lowest quarterly returns for the periods reflected in the bar
chart are:

                             HIGHEST                        LOWEST
--------------------------------------------------------------------------------
Target 2010                  11.97% (3Q 2002)               -5.42% (1Q 1999)
--------------------------------------------------------------------------------




TARGET 2015 FUND - INVESTOR CLASS


The highest and lowest quarterly returns for the periods reflected in the bar
chart are:


                             HIGHEST                         LOWEST
--------------------------------------------------------------------------------
Target 2015                  15.81% (3Q 2002)                -6.67% (1Q 1999)
--------------------------------------------------------------------------------




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TARGET 2020 FUND - INVESTOR CLASS


The highest and lowest quarterly returns for the periods reflected in the bar
chart are:

                             HIGHEST                         LOWEST
--------------------------------------------------------------------------------
Target 2020                  17.75% (3Q 2002)                -8.38% (1Q 1999)
--------------------------------------------------------------------------------




TARGET 2025 FUND - INVESTOR CLASS


The highest and lowest quarterly returns for the periods reflected in the bar
chart are:


                             HIGHEST                        LOWEST
--------------------------------------------------------------------------------
Target 2025                  20.36% (3Q 2002)               -9.68% (1Q 1999)
--------------------------------------------------------------------------------



Average Annual Total Returns

The following tables show the average annual total returns of the funds'
Investor Class shares calculated three different ways. Additional tables show
the average annual total returns of the funds' other share class calculated
before the impact of taxes.

Return Before Taxes shows the actual change in the value of fund shares over the
time periods shown, but does not reflect the impact of taxes on fund
distributions or the sale of fund shares. The two after-tax returns take into
account taxes that may be associated with owning fund shares. Return After Taxes
on Distributions is a fund's actual performance, adjusted by the effect of taxes
on distributions made by the fund during the periods shown. Return After Taxes
on Distributions and Sale of Fund Shares is further adjusted to reflect the tax
impact on any change in the value of fund shares as if they had been sold on the
last day of the period.

After-tax returns are calculated using the historical highest federal marginal
income tax rates and do not reflect the impact of state and local taxes. Actual
after-tax


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4



returns depend on an investor's tax situation and may differ from those shown.
After-tax returns shown are not relevant to investors who hold fund shares
through tax-deferred arrangements such as 401(k) plans or IRAs. After-tax
returns are shown only for Investor Class shares. After-tax returns for the
other share class will vary.

The benchmarks are unmanaged indices (except as noted) that have no operating
costs and are included in the table for performance comparison.



INVESTOR CLASS
FOR THE CALENDAR YEAR ENDED DECEMBER 31, 2007    1 YEAR    5 YEARS    10 YEARS
--------------------------------------------------------------------------------
Target 2010

Return Before Taxes                              8.39%     3.95%      6.41%

Return After Taxes on Distributions              6.66%     1.98%      4.16%

Return After Taxes on Distributions              5.71%     2.33%      4.21%
and Sale of Fund Shares

11/15/2010 STRIPS Issue(1)                       9.19%     4.20%      6.94%
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.16%
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
--------------------------------------------------------------------------------
Target 2015

Return Before Taxes                              10.09%    5.99%      7.30%

Return After Taxes on Distributions              8.45%     4.04%      5.22%

Return After Taxes on Distributions              6.54%     4.05%      5.05%
and Sale of Fund Shares

11/15/2015 STRIPS Issue(1)                       10.46%    6.06%      7.79%
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.16%
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
--------------------------------------------------------------------------------
Target 2020

Return Before Taxes                              9.55%     7.10%      7.68%

Return After Taxes on Distributions              7.62%     5.02%      4.29%

Return After Taxes on Distributions              6.58%     5.00%      4.73%
and Sale of Fund Shares

11/15/2020 STRIPS Issue(1)                       9.91%     7.12%      8.17%
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.16%
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
--------------------------------------------------------------------------------
Target 2025

Return Before Taxes                              9.43%     8.00%      8.24%

Return After Taxes on Distributions              7.42%     5.59%      5.60%

Return After Taxes on Distributions              6.09%     5.71%      5.65%
and Sale of Fund Shares

Fund benchmark(1)(2)                             9.72%     7.92%      8.55%
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.16%
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
--------------------------------------------------------------------------------


(1)  EACH TARGET FUND IS DESIGNED TO PERFORM LIKE A ZERO-COUPON U.S.
     TREASURY SECURITY WITH THE SAME TERM TO MATURITY AS THE FUND. THE STRIPS
     ISSUES LISTED IN THIS TABLE ARE U.S. TREASURY ZERO-COUPON SECURITIES WITH
     MATURITY DATES SIMILAR TO THE RESPECTIVE FUND. THE STRIPS ISSUES ARE NOT
     INDICES, BUT ARE IMPORTANT BENCHMARKS OF THE TARGET FUNDS' PERFORMANCE.

(2)  THE BENCHMARK WAS AN 8/15/2025 STRIPS ISSUE FROM INCEPTION THROUGH
     JANUARY 1998, WHEN IT WAS CHANGED TO AN 11/15/2025 STRIPS ISSUE.


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5





ADVISOR CLASS
                                                                      LIFE OF
FOR THE CALENDAR YEAR ENDED DECEMBER 31, 2007    1 YEAR    5 YEARS    CLASS(1)
------------------------------------------------------------------------------
Target 2010

Return Before Taxes                              8.12%     3.69%      5.23%

11/15/2010 STRIPS Issue(2)                       9.19%     4.20%      5.94%(3)
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      6.43%(3)
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
------------------------------------------------------------------------------
Target 2015

Return Before Taxes                              9.82%     5.72%      8.10%

11/15/2015 STRIPS Issue(2)                       10.46%    6.06%      9.04%(4)
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.87%(4)
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
------------------------------------------------------------------------------
Target 2020

Return Before Taxes                              9.26%     6.83%      6.50%

11/15/2020 STRIPS Issue(2)                       9.91%     7.12%      7.28%(3)
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      6.43%(3)
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
------------------------------------------------------------------------------
Target 2025

Return Before Taxes                              9.16%     7.73%      7.61%

11/15/2025 STRIPS Issue(2)                       9.72%     7.92%      8.33%(5)
   (reflects no deduction
   for fees, expenses or taxes)

Merrill Lynch 10+ Year                           9.90%     5.64%      7.07%(5)
Treasury Total Return Index
   (reflects no deduction
   for fees, expenses or taxes)
------------------------------------------------------------------------------


(1)  THE INCEPTION DATES FOR THE ADVISOR CLASS ARE: TARGET 2010: OCTOBER
     20, 1998; TARGET 2015: JULY 23, 1999; TARGET 2020: OCTOBER 19, 1998; AND
     TARGET 2025: JUNE 1, 1998. ONLY CLASSES WITH PERFORMANCE HISTORY FOR LESS
     THAN 10 YEARS SHOW RETURNS FOR LIFE OF CLASS.

(2)  EACH TARGET FUND IS DESIGNED TO PERFORM LIKE A ZERO-COUPON U.S.
     TREASURY SECURITY WITH THE SAME TERM TO MATURITY AS THE FUND. THE STRIPS
     ISSUES LISTED IN THIS TABLE ARE U.S. TREASURY ZERO-COUPON SECURITIES WITH
     MATURITY DATES SIMILAR TO THE RESPECTIVE FUND. THE STRIPS ISSUES ARE NOT
     INDICES, BUT ARE IMPORTANT BENCHMARKS OF THE TARGET FUNDS' PERFORMANCE.

(3)  SINCE OCTOBER 31, 1998, THE DATE CLOSEST TO THE CLASS'S INCEPTION FOR
     WHICH DATA IS AVAILABLE.

(4)  SINCE JULY 31, 1999, THE DATE CLOSEST TO THE CLASS'S INCEPTION FOR
     WHICH DATA IS AVAILABLE.

(5)  SINCE MAY 31, 1998, THE DATE CLOSEST TO THE CLASS'S INCEPTION FOR
     WHICH DATA IS AVAILABLE.

Performance information is designed to help you see how fund returns can vary.
Keep in mind that past performance (before and after taxes) does not predict how
a fund will perform in the future.

For current performance information, including yields, please call us or visit
americancentury.com.


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6





FEES AND EXPENSES

There are no sales loads, fees or other charges

*  to buy fund shares directly from American Century

*  to reinvest dividends in additional shares

*  to exchange into the same class of shares of other American Century funds

*  to redeem your shares, other than a $10 fee to redeem by wire

The following tables describe the fees and expenses you may pay if you buy and
hold shares of the funds.

--------------------------------------------------------------------------------


SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)
Investor Class (all funds)
--------------------------------------------------------------------------------
  Maximum Account Maintenance Fee                                        $25(1)
--------------------------------------------------------------------------------
ANNUAL FUND OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
                                  DISTRIBUTION                    TOTAL ANNUAL
                    MANAGEMENT    AND SERVICE       OTHER         FUND OPERATING
                    FEE(2)        (12B-1) FEES(3)   EXPENSES(4)   EXPENSES
--------------------------------------------------------------------------------
Target 2010
  Investor Class    0.56%         None              0.01%        0.57%
--------------------------------------------------------------------------------
  Advisor Class     0.56%(5)      0.25%(6)          0.01%        0.82%
--------------------------------------------------------------------------------
Target 2015
  Investor Class    0.56%         None              0.01%        0.57%
--------------------------------------------------------------------------------
  Advisor Class     0.56%(5)      0.25%(6)          0.01%        0.82%
--------------------------------------------------------------------------------
Target 2020
  Investor Class    0.56%         None              0.01%        0.57%
--------------------------------------------------------------------------------
  Advisor Class     0.56%(5)      0.25%(6)          0.01%        0.82%
--------------------------------------------------------------------------------
Target 2025
  Investor Class    0.56%         None              0.01%        0.57%
--------------------------------------------------------------------------------
  Advisor Class     0.56%(5)      0.25%(6)          0.01%        0.82%
--------------------------------------------------------------------------------


(1)  APPLIES ONLY TO INVESTORS WHOSE TOTAL ELIGIBLE INVESTMENTS WITH
     AMERICAN CENTURY ARE LESS THAN $10,000. SEE Account Maintenance Fee UNDER
     Investing Directly with American Century FOR MORE DETAILS.

(2)  THE FUNDS PAY THE ADVISOR A SINGLE UNIFIED MANAGEMENT FEE FOR
     ARRANGING ALL SERVICES NECESSARY FOR THE FUNDS TO OPERATE. THE FEES SHOWN
     ARE BASED ON ASSETS DURING THE FUNDS' MOST RECENT FISCAL YEAR. THE FUNDS
     HAVE STEPPED FEE SCHEDULES. AS A RESULT, THE FUNDS' UNIFIED MANAGEMENT FEE
     RATES GENERALLY DECREASE AS FUND ASSETS INCREASE AND INCREASE AS FUND
     ASSETS DECREASE. FOR MORE INFORMATION ABOUT THE UNIFIED MANAGEMENT FEE, SEE
     The Investment Advisor UNDER Management.

(3)  THE 12B-1 FEE IS DESIGNED TO PERMIT INVESTORS TO PURCHASE SHARES
     THROUGH BROKER-DEALERS, BANKS, INSURANCE COMPANIES AND OTHER FINANCIAL
     INTERMEDIARIES. THE FEE MAY BE USED TO COMPENSATE SUCH FINANCIAL
     INTERMEDIARIES FOR DISTRIBUTION AND OTHER SHAREHOLDER SERVICES. FOR MORE
     INFORMATION, SEE Multiple Class Information AND Service, Distribution and
     Administrative Fees, PAGE 27.

(4)  OTHER EXPENSES INCLUDE THE FEES AND EXPENSES OF THE FUNDS' INDEPENDENT
     TRUSTEES AND THEIR LEGAL COUNSEL, AS WELL AS INTEREST.

(5)  THE UNIFIED MANAGEMENT FEE HAS BEEN RESTATED TO REFLECT THE INCREASE
     IN THE FEE APPROVED BY THE FUNDS' SHAREHOLDERS EFFECTIVE DECEMBER 3, 2007.

(6)  THE 12B-1 FEE HAS BEEN RESTATED TO REFLECT THE DECREASE IN THE FEE
     EFFECTIVE DECEMBER 3, 2007.



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7


EXAMPLE

The examples in the table below are intended to help you compare the costs of
investing in a fund with the costs of investing in other mutual funds. Of
course, your actual costs may be higher or lower. Assuming you . . .

*  invest $10,000 in the fund

*  redeem all of your shares at the end of the periods shown below

*  earn a 5% return each year

*  incur the same operating expenses as shown above

. . . your cost of investing in the fund would be:




                         1 YEAR         3 YEARS         5 YEARS         10 YEARS
--------------------------------------------------------------------------------
Target 2010
  Investor Class         $58            $183            $319            $714
--------------------------------------------------------------------------------
  Advisor Class          $84            $262            $456            $1,014
--------------------------------------------------------------------------------
Target 2015
  Investor Class         $58            $183            $319            $714
--------------------------------------------------------------------------------
  Advisor Class          $84            $262            $456            $1,014
--------------------------------------------------------------------------------
Target 2020
  Investor Class         $58            $183            $319            $714
--------------------------------------------------------------------------------
  Advisor Class          $84            $262            $456            $1,014
--------------------------------------------------------------------------------
Target 2025
  Investor Class         $58            $183            $319            $714
--------------------------------------------------------------------------------
  Advisor Class          $84            $262            $456            $1,014
--------------------------------------------------------------------------------




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OBJECTIVES, STRATEGIES AND RISKS

TARGET 2010 FUND
TARGET 2015 FUND
TARGET 2020 FUND
TARGET 2025 FUND




WHAT IS THE FUNDS' INVESTMENT OBJECTIVE?

The funds seek the highest return consistent with investment in U.S. Treasury
securities.

HOW DO THE FUNDS PURSUE THEIR INVESTMENT OBJECTIVES?

Each fund invests primarily in zero-coupon U.S. Treasury securities and their
equivalents, and may invest up to 20% of its assets in AAA-rated zero-coupon
U.S. government agency securities. Each fund is designed to provide an
investment experience that is similar to a direct investment in a zero-coupon
U.S. Treasury security.

A description of the policies and procedures with respect to the disclosure of
the funds' portfolio securities is available in the statement of additional
information.

WHAT ARE THE DIFFERENCES BETWEEN THE FUNDS?

Each fund is managed to mature in the year identified in its name; therefore,
each fund's weighted average maturity is different. Funds with longer weighted
average maturities have the most volatile share prices. For example, Target 2025
has the longest weighted average maturity, and its share price will fluctuate
the most.

WHAT ARE ZERO-COUPON SECURITIES?

Zero-coupon securities make no periodic interest or principal payments. Instead,
they trade at a deep discount to their face value and all of the interest and
principal is paid when the securities mature. Some zero-coupon securities are
created by separating the interest and principal payment obligations of a
traditional coupon-bearing bond. Each payment obligation becomes a separate
zero-coupon security. Zero-coupon U.S. Treasury and U.S. government agency
securities are created by financial institutions (such as broker-dealers), the
U.S. Treasury and other agencies of the federal government. The U.S. Treasury
and other agencies of the federal government may also issue zero-coupon
securities directly.

Zero-coupon U.S. Treasury securities (Treasury zeros) are created by separating
a Treasury bond's interest and principal payment obligations. The important
characteristic of Treasury zeros is that payment of the final maturity value is
an obligation of the U.S. Treasury and is backed by the full faith and credit of
the U.S. government.

Zero-coupon U.S. government agency securities (agency zeros) operate in all
respects like Treasury zeros, except that they are created by separating the
interest and principal payment obligations of bonds issued by the agency. Unlike
Treasury zeros, payment of the final maturity value is the obligation of the
issuing agency. If the agency zeros are ultimately backed by securities or
payment obligations of the U.S. Treasury and are generally considered by the
market to be of comparable credit quality, the manager considers them Treasury
zero equivalents. Otherwise, the manager will limit purchases of such agency
zeros to those that receive the highest rating (AAA) by an independent rating
organization and will further limit such investments to 20% of a fund's assets.


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9


Zero-coupon securities are beneficial for investors who wish to invest for a
fixed period of time at a selected rate. When an investor purchases a
traditional coupon-bearing bond, it is paid periodic interest at a predetermined
rate. This interest payment must be reinvested elsewhere. However, the investor
may not be able to reinvest this interest payment in an investment that has a
return similar to a traditional coupon-bearing bond. This is called reinvestment
risk. Because zero-coupon securities do not pay interest periodically, investors
in zero-coupon securities are not exposed to reinvestment risk.

HOW IS AN INVESTMENT IN THE FUNDS LIKE AN INVESTMENT IN ZERO-COUPON U.S.
TREASURY SECURITIES?

The investment performance of the funds is designed to be similar to an
investment in zero-coupon U.S. Treasury securities. If you invest in a fund,
reinvest all distributions and hold your shares until the fund is liquidated,
your investment experience should be similar to that of an investment in a
zero-coupon U.S. Treasury security with the same term to maturity as the fund.
Each fund is managed to provide an investment return that will not differ
substantially from the ANTICIPATED GROWTH RATE (AGR) calculated on the day the
shares were purchased. Each fund also is managed to provide maturity value that
will not differ substantially from the ANTICIPATED VALUE AT MATURITY (AVM)
calculated on the day the shares were purchased.

     [GRAPHIC OF TRIANGLE]

     A FUND'S ANTICIPATED GROWTH RATE IS AN ESTIMATE OF THE ANNUALIZED
     RATE OF GROWTH OF THE FUND THAT AN INVESTOR MAY EXPECT FROM THE
     PURCHASE DATE TO THE FUND'S WEIGHTED AVERAGE MATURITY DATE.

     [GRAPHIC OF TRIANGLE]

     THE ANTICIPATED VALUE AT MATURITY IS AN ESTIMATE OF A FUND'S NET
     ASSET VALUE AS OF THE FUND'S WEIGHTED AVERAGE MATURITY DATE. IT IS BASED
     ON THE MATURITY VALUES OF THE ZERO-COUPON SECURITIES HELD BY THE FUND.

The advisor calculates each fund's AGR and AVM every business day. AGR and AVM
calculations assume, among other factors, that the fund's operating expenses (as
a percentage of the fund's assets) and composition of securities held by each
fund remain constant for the life of the fund. While many factors can influence
each fund's daily AGR and AVM, they tend to fluctuate within narrow ranges. The
following table shows how each fund's AVM for the Investor Class has fluctuated
in the last five years. The AVM for the Advisor Class of each fund will differ
from that of the Investor Class, depending on the expenses of that class.



Anticipated Values at Maturity
--------------------------------------------------------------------------------
               9/30/2003    9/30/2004    9/30/2005    9/30/2006    9/30/2007
--------------------------------------------------------------------------------
Target 2010    $105.22      $105.59      $105.62      $105.22      $105.39
--------------------------------------------------------------------------------
Target 2015    $112.88      $113.35      $113.00      $113.48      $113.32
--------------------------------------------------------------------------------
Target 2020    $107.48      $108.07      $108.21      $108.21      $107.97
--------------------------------------------------------------------------------
Target 2025    $117.43      $118.37      $116.83      $116.72      $117.85
--------------------------------------------------------------------------------


     [GRAPHIC OF TRIANGLE]

     THIS TABLE IS DESIGNED TO SHOW THE NARROW RANGES IN WHICH EACH FUND'S
     AVM VARIES OVER TIME. THERE IS NO GUARANTEE THAT A FUND'S AVM WILL
     FLUCTUATE AS LITTLE IN THE FUTURE.



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10


WHAT HAPPENS WHEN A FUND REACHES ITS MATURITY YEAR?

*  The portfolio managers may begin buying traditional coupon-bearing
   securities consistent with a fund's investment objective and strategy.

*  As a fund's zero-coupon securities mature, the proceeds from the
   retirement of these securities may be invested in zeros, traditional
   coupon-bearing debt securities and cash equivalent securities.

*  Each fund will be liquidated near the end of its maturity year.




WHAT ARE THE PRINCIPAL RISKS OF INVESTING IN THE FUNDS?

Because the funds have different weighted average maturities, each fund will
respond differently to changes in interest rates. Funds with longer weighted
average maturities are generally more sensitive to interest rate changes. When
interest rates rise, the funds' share values will decline, but the share values
of funds with longer weighted average maturities generally will decline further.

At any given time your shares may be worth less than the price you paid for
them. In other words, it is possible to lose money by investing in the funds.

While we recommend that shareholders hold their investment in a fund until the
fund is liquidated, we do not restrict your (or any other shareholders) ability
to redeem shares. When a fund's shareholders redeem their shares before the
target maturity year, unanticipated capital gains or losses may result. The fund
will distribute these capital gains and losses to all shareholders.

The portfolio managers adhere to investment policies that are designed to
provide an investment that is similar to investing in a zero-coupon U.S.
Treasury security that matures in the year identified in the fund's name.
However, an investment in the funds involves different risks. A precise forecast
of a fund's final maturity value and yield to maturity is not possible.


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11


BASICS OF FIXED-INCOME INVESTING

DEBT SECURITIES

When a fund buys a debt security, also called a fixed-income security, it is
essentially lending money to the security's issuer. Notes, bonds, commercial
paper and U.S. Treasury securities are examples of debt securities. After the
debt security is first sold by the issuer, it may be bought and sold by other
investors. The price of the debt security may rise or fall based on many
factors, including changes in interest rates, liquidity and credit quality.

The portfolio managers decide which debt securities to buy and sell by

*  determining which debt securities help a fund meet its maturity
   requirements

*  identifying debt securities that satisfy a fund's credit quality standards

*  evaluating current economic conditions and assessing the risk of inflation

*  evaluating special features of the debt securities that may make them more
   or less attractive

WEIGHTED AVERAGE MATURITY

Like most loans, debt securities eventually must be repaid or refinanced at some
date. This date is called the maturity date. The number of days left to a debt
security's maturity date is called the remaining maturity. The longer a debt
security's remaining maturity, generally the more sensitive its price is to
changes in interest rates.

Because a bond fund will own many debt securities, the portfolio managers
calculate the average of the remaining maturities of all the debt securities the
fund owns to evaluate the interest rate sensitivity of the entire portfolio.
This average is weighted according to the size of the fund's individual holdings
and is called the weighted average maturity. The following chart shows how
portfolio managers would calculate the weighted average maturity for a fund that
owned only two debt securities.



                           AMOUNT OF       PERCENT OF   REMAINING   WEIGHTED
                           SECURITY OWNED  PORTFOLIO    MATURITY    MATURITY
--------------------------------------------------------------------------------
Debt Security A            $100,000        25%          4 years     1 year
--------------------------------------------------------------------------------
Debt Security B            $300,000        75%          12 years    9 years
--------------------------------------------------------------------------------
Weighted Average Maturity                                           10 years
--------------------------------------------------------------------------------


TYPES OF RISK

The basic types of risk the funds face are described below.

Interest Rate Risk

Generally, interest rates and the prices of debt securities move in opposite
directions. When interest rates fall, the prices of most debt securities rise;
when interest rates rise, prices fall. Because the funds invest primarily in
debt securities, changes in interest rates will affect the funds' performance.
This sensitivity to interest rate changes is called interest rate risk.

The degree to which interest rate changes affect fund performance varies and is
related to the weighted average maturity of a particular fund. For example, when
interest rates rise, you can expect the share value of a long-term bond fund to
fall more than that of a short-term bond fund. When rates fall, the opposite is
true.

The following table shows the likely effect of a 1% (100 basis points) increase
in interest rates on the price of 7% coupon bonds of differing maturities:


------
12




REMAINING MATURITY   CURRENT PRICE   PRICE AFTER 1% INCREASE   CHANGE IN PRICE
--------------------------------------------------------------------------------
1 year               $100.00         $99.06                    -0.94%
--------------------------------------------------------------------------------
3 years              $100.00         $97.38                    -2.62%
--------------------------------------------------------------------------------
10 years             $100.00         $93.20                    -6.80%
--------------------------------------------------------------------------------
30 years             $100.00         $88.69                    -11.31%
--------------------------------------------------------------------------------


Credit Risk

Credit risk is the risk that an obligation won't be paid and a loss will result.
A high credit rating indicates a high degree of confidence by the rating
organization that the issuer will be able to withstand adverse business,
financial or economic conditions and make interest and principal payments on
time. Generally, a lower credit rating indicates a greater risk of non-payment.
A lower rating also may indicate that the issuer has a more senior series of
debt securities, which means that if the issuer has difficulties making its
payments, the more senior series of debt is first in line for payment.

Credit quality may be lower when the issuer has any of the following: a high
debt level, a short operating history, a difficult, competitive environment, or
a less stable cash flow.

The portfolio managers do not invest solely on the basis of a debt security's
credit rating; they also consider other factors, including potential returns.
Higher credit ratings usually mean lower interest rate payments, so the managers
often purchase debt securities that aren't the highest rated to increase return.
If a fund purchases lower-rated debt securities, it assumes additional credit
risk.

Strictly speaking, U.S. Treasury securities are not "rated." However, U.S.
Treasury securities are backed by the full faith and credit of the United
States, and are considered among the safest securities in the world. The rating
on U.S. Treasury securities is, therefore, considered to be equivalent to a AAA
rating.

Liquidity Risk

Debt securities can become difficult to sell, or less liquid, for a variety of
reasons, such as lack of an active trading market. The chance that a fund will
have difficulty selling its debt securities is called liquidity risk.




A COMPARISON OF BASIC RISK FACTORS

The following chart depicts the basic risks of investing in the funds. It is
designed to help you compare these funds with each other; it shouldn't be used
to compare these funds with other mutual funds.



                 INTEREST RATE RISK      CREDIT RISK(1)      LIQUIDITY RISK(2)
--------------------------------------------------------------------------------
Target 2010      Lowest                  Low                 Low
--------------------------------------------------------------------------------
Target 2015      Medium                  Low                 Low
--------------------------------------------------------------------------------
Target 2020      High                    Low                 Low
--------------------------------------------------------------------------------
Target 2025      Highest                 Low                 Low
--------------------------------------------------------------------------------


(1)  BECAUSE THE FUNDS ALL INVEST PRIMARILY IN ZERO-COUPON U.S. TREASURY
     SECURITIES AND THEIR EQUIVALENTS, THERE IS NO DIFFERENCE IN CREDIT RISK.
     U.S. TREASURY SECURITIES ARE CONSIDERED AMONG THE SAFEST SECURITIES IN THE
     WORLD BECAUSE THEY ARE BACKED BY THE FULL FAITH AND CREDIT OF THE UNITED
     STATES.

(2)  THE TREASURY MARKET IS CONSIDERED THE MOST LIQUID IN THE WORLD.

The funds engage in a variety of investment techniques as they pursue their
investment objectives. Each technique has its own characteristics and may pose
some level of risk to the funds. If you would like to learn more about these
techniques, please review the statement of additional information before making
an investment.


------
13





MANAGEMENT

WHO MANAGES THE FUNDS?

The Board of Trustees, investment advisor and fund management team play key
roles in the management of the funds.

THE BOARD OF TRUSTEES

The Board of Trustees oversees the management of the funds and meets at least
quarterly to review reports about fund operations. Although the Board of
Trustees does not manage the funds, it has hired an investment advisor to do so.
More than three-fourths of the trustees are independent of the funds' advisor;
that is, they have never been employed by and have no financial interest in the
advisor or any of its affiliated companies (other than as shareholders of
American Century funds).




THE INVESTMENT ADVISOR

The funds' investment advisor is American Century Investment Management, Inc.
(the advisor). The advisor has been managing mutual funds since 1958 and is
headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible for managing the investment portfolios of the funds
and directing the purchase and sale of their investment securities. The advisor
also arranges for transfer agency, custody and all other services necessary for
the funds to operate.

For the services it provides to the funds, the advisor receives a unified
management fee based on a percentage of the daily net assets of each class of
shares of the funds. The management fee is calculated daily and paid monthly in
arrears. Out of each fund's fee, the advisor pays all expenses of managing and
operating that fund except brokerage expenses, taxes, interest, fees and
expenses of the independent trustees (including legal counsel fees), and
extraordinary expenses. A portion of each fund's management fee may be paid by
the fund's advisor to unaffiliated third parties who provide recordkeeping and
administrative services that would otherwise be performed by an affiliate of the
advisor.

The percentage rate used to calculate the management fee for each class of
shares of a fund is determined daily using a two-component formula that takes
into account (i) the daily net assets of the accounts managed by the advisor
that are in the same broad investment category as the funds (the "Category Fee")
and (ii) the assets of all funds in the American Century family of funds (the
"Complex Fee"). The statement of additional information contains detailed
information about the calculation of the management fee.



MANAGEMENT FEES PAID BY THE FUNDS
TO THE ADVISOR AS A PERCENTAGE OF AVERAGE
NET ASSETS FOR THE MOST RECENT FISCAL               INVESTOR           ADVISOR
YEAR ENDED SEPTEMBER 30, 2007                       CLASS              CLASS
--------------------------------------------------------------------------------
Target 2010                                         0.56%              0.31%
--------------------------------------------------------------------------------
Target 2015                                         0.56%              0.31%
--------------------------------------------------------------------------------
Target 2020                                         0.56%              0.31%
--------------------------------------------------------------------------------
Target 2025                                         0.56%              0.31%
--------------------------------------------------------------------------------


A discussion regarding the basis for the Board of Trustees' approval of the
funds' investment advisory contract with the advisor is available in the funds'
report to shareholders dated September 30, 2007.



------
14


THE FUND MANAGEMENT TEAM

The advisor uses teams of portfolio managers and analysts, organized by broad
investment categories such as money markets, corporate bonds, government bonds
and municipal bonds, in its management of fixed-income funds. Representatives of
these teams serve on the firm's Macro Strategy Team, which is responsible for
periodically adjusting the funds' strategic investment parameters based on
economic and market conditions. The funds' lead portfolio managers are
responsible for security selection and portfolio construction for the funds
within these strategic parameters, as well as compliance with stated investment
objectives and cash flow monitoring. Other members of the investment team
provide research and analytical support but generally do not make day-to-day
investment decisions for the funds.

The individuals listed below are primarily responsible for the day-to-day
management of the funds described in this prospectus.

ROBERT V. GAHAGAN
(LEAD PORTFOLIO MANAGER AND MACRO STRATEGY TEAM REPRESENTATIVE)

Mr. Gahagan, Senior Vice President and Senior Portfolio Manager, has been a
member of the team that manages the funds since December 2001. He joined
American Century in February 1983 and became a portfolio manager in January
1991. He has a bachelor's degree in economics and an MBA from the University of
Missouri - Kansas City.

SETH B. PLUNKETT (LEAD PORTFOLIO MANAGER)

Mr. Plunkett, Portfolio Manager, has been a member of the team that manages the
funds since February 2007. He joined American Century in 1999, became a
portfolio trading associate in September 2000 and a fixed-income trader in
February 2003. He became a portfolio manager in March 2007. He has a bachelor of
science in biology from George Mason University.

The statement of additional information provides additional information about
the other accounts managed by the portfolio managers, if any, the structure of
their compensation, and their ownership of fund securities.




FUNDAMENTAL INVESTMENT POLICIES

Fundamental investment policies contained in the statement of additional
information and the investment objectives of the funds may not be changed
without shareholder approval. The Board of Trustees and/or the advisor may
change any other policies and investment strategies.


------
15


INVESTING DIRECTLY WITH AMERICAN CENTURY

SERVICES AUTOMATICALLY AVAILABLE TO YOU

Most accounts automatically will have access to the services listed under WAYS
TO MANAGE YOUR ACCOUNT when the account is opened. If you do not want these
services, see CONDUCTING BUSINESS IN WRITING. If you have questions about the
services that apply to your account type, please call us.

CONDUCTING BUSINESS IN WRITING

If you prefer to conduct business in writing only, you can indicate this on the
account application. If you choose this option, you must provide written
instructions to invest, exchange and redeem. All account owners must sign
transaction instructions (with signatures guaranteed for redemptions in excess
of $100,000). By choosing this option, you are not eligible to enroll for
exclusive online account management to waive the account maintenance fee. See
ACCOUNT MAINTENANCE FEE in this section. If you want to add online and telephone
services later, you can complete a Full Services Option form.

ACCOUNT MAINTENANCE FEE

If you hold Investor Class shares of any American Century fund, or Institutional
Class shares of the American Century Diversified Bond fund, in an American
Century account (i.e., not a financial intermediary or retirement plan account),
we may charge you a $12.50 semiannual account maintenance fee if the value of
those shares is less than $10,000. We will determine the amount of your total
eligible investments twice per year, generally the last Friday in October and
April. If the value of those investments is less than $10,000 at that time, we
will automatically redeem shares in one of your accounts to pay the $12.50 fee.
Please note that you may incur tax liability as a result of the redemption. In
determining your total eligible investment amount, we will include your
investments in all PERSONAL ACCOUNTS (including American Century Brokerage
accounts) registered under your Social Security number. We will not charge the
fee as long as you choose to manage your accounts exclusively online. You may
enroll for exclusive online account management on our Web site. To find out more
about exclusive online account management, visit americancentury.com/info/demo.

     [GRAPHIC OF TRIANGLE]

     PERSONAL ACCOUNTS INCLUDE INDIVIDUAL ACCOUNTS, JOINT ACCOUNTS,
     UGMA/UTMA ACCOUNTS, PERSONAL TRUSTS, COVERDELL EDUCATION SAVINGS
     ACCOUNTS, IRAS (INCLUDING TRADITIONAL, ROTH, ROLLOVER, SEP-, SARSEP-
     AND SIMPLE-IRAS), AND CERTAIN OTHER RETIREMENT ACCOUNTS. IF YOU HAVE
     ONLY BUSINESS, BUSINESS RETIREMENT, EMPLOYER-SPONSORED OR AMERICAN
     CENTURY BROKERAGE ACCOUNTS, YOU ARE CURRENTLY NOT SUBJECT TO THIS FEE,
     BUT YOU MAY BE SUBJECT TO OTHER FEES.

WIRE PURCHASES

CURRENT INVESTORS: If you would like to make a wire purchase into an existing
account, your bank will need the following information. (To invest in a new
fund, please call us first to set up the new account.)

*  American Century's bank information: Commerce Bank N.A., Routing No.
   101000019, Account No. 2804918

*  Your American Century account number and fund name

*  Your name

*  The contribution year (for IRAs only)

NEW INVESTORS: To make a wire purchase into a new account, please complete an
application prior to wiring money.


------
16


WAYS TO MANAGE YOUR ACCOUNT

ONLINE
--------------------------------------------------------------------------------
americancentury.com

OPEN AN ACCOUNT: If you are a current or new investor, you can open an account
by completing and submitting our online application. Current investors also can
open an account by exchanging shares from another American Century account.

EXCHANGE SHARES: Exchange shares from another American Century account.

MAKE ADDITIONAL INVESTMENTS: Make an additional investment into an established
American Century account if you have authorized us to invest from your bank
account.

SELL SHARES*: Redeem shares and proceeds will be electronically transferred to
your authorized bank account.

* ONLINE REDEMPTIONS UP TO $25,000 PER DAY.

IN PERSON
--------------------------------------------------------------------------------
If you prefer to handle your transactions in person, visit one of our Investor
Centers and a representative can help you open an account, make additional
investments, and sell or exchange shares.

* 4500 Main Street, Kansas City, Missouri - 8 a.m. to 5 p.m., Monday - Friday

* 4917 Town Center Drive, Leawood, Kansas - 8 a.m. to 5 p.m., Monday - Friday,
  8 a.m. to noon, Saturday

* 1665 Charleston Road, Mountain View, California - 8 a.m. to 5 p.m.,
  Monday - Friday

BY TELEPHONE
--------------------------------------------------------------------------------
INVESTOR SERVICES REPRESENTATIVE: 1-800-345-2021

BUSINESS, NOT-FOR-PROFIT AND EMPLOYER-SPONSORED RETIREMENT PLANS: 1-800-345-3533

AUTOMATED INFORMATION LINE: 1-800-345-8765

OPEN AN ACCOUNT: If you are a current investor, you can open an account by
exchanging shares from another American Century account.

EXCHANGE SHARES: Call or use our Automated Information Line if you have
authorized us to accept telephone instructions. The Automated Information Line
is available only to Investor Class shareholders.

MAKE ADDITIONAL INVESTMENTS: Call or use our Automated Information Line if you
have authorized us to invest from your bank account. The Automated Information
Line is available only to Investor Class shareholders.

SELL SHARES: Call a Service Representative.

BY MAIL OR FAX
--------------------------------------------------------------------------------
P.O. Box 419200, Kansas City, MO 64141-6200 - Fax: 816-340-7962

OPEN AN ACCOUNT: Send a signed, completed application and check or money order
payable to American Century Investments.

EXCHANGE SHARES: Send written instructions to exchange your shares from one
American Century account to another.

MAKE ADDITIONAL INVESTMENTS: Send your check or money order for at least $50
with an investment slip or $250 without an investment slip. If you don't have an
investment slip, include your name, address and account number on your check or
money order.

SELL SHARES: Send written instructions or a redemption form to sell shares. Call
a Service Representative to request a form.

AUTOMATICALLY
--------------------------------------------------------------------------------
OPEN AN ACCOUNT: Not available.

EXCHANGE SHARES: Send written instructions to set up an automatic exchange of
your shares from one American Century account to another.

MAKE ADDITIONAL INVESTMENTS: With the automatic investment service, you can
purchase shares on a regular basis. You must invest at least $50 per month per
account.

SELL SHARES: You may sell shares automatically by establishing Check-A-Month or
Automatic Redemption plans.

SEE ADDITIONAL POLICIES AFFECTING YOUR INVESTMENT FOR MORE INFORMATION ABOUT
INVESTING WITH US.


------
17


INVESTING THROUGH A FINANCIAL INTERMEDIARY

The funds' Advisor Class shares are intended for purchase by participants in
employer-sponsored retirement plans and for persons purchasing shares through
FINANCIAL INTERMEDIARIES that provide various administrative and distribution
services. For more information regarding employer-sponsored retirement plan
types, please see BUYING AND SELLING FUND SHARES in the statement of additional
information.

     [GRAPHIC OF TRIANGLE]

     FINANCIAL INTERMEDIARIES INCLUDE BANKS, BROKER-DEALERS,
     INSURANCE COMPANIES, PLAN SPONSORS AND FINANCIAL PROFESSIONALS.

Your ability to purchase, exchange, redeem and transfer shares will be affected
by the policies of the financial intermediary through which you do business.
Some policy differences may include

*  minimum investment requirements

*  exchange policies

*  fund choices

*  cutoff time for investments

*  trading restrictions

In addition, your financial intermediary may charge a transaction fee for the
purchase or sale of fund shares. Those charges are retained by the financial
intermediary and are not shared with American Century or the fund. Please
contact your financial intermediary or plan sponsor for a complete description
of its policies. Copies of the funds' annual report, semiannual report and
statement of additional information are available from your financial
intermediary or plan sponsor.

The funds have authorized certain financial intermediaries to accept orders on
each fund's behalf. American Century has selling agreements with these financial
intermediaries requiring them to track the time investment orders are received
and to comply with procedures relating to the transmission of orders. Orders
must be received by the financial intermediary on the fund's behalf before the
time the net asset value is determined in order to receive that day's share
price. If those orders are transmitted to American Century and paid for in
accordance with the selling agreement, they will be priced at the net asset
value next determined after your request is received in the form required by the
financial intermediary.

SEE ADDITIONAL POLICIES AFFECTING YOUR INVESTMENT FOR MORE INFORMATION ABOUT
INVESTING WITH US.


------
18





ADDITIONAL POLICIES AFFECTING YOUR INVESTMENT



MINIMUM INITIAL INVESTMENT AMOUNTS

Unless otherwise specified below, the minimum initial investment amount to open
an account is $2,500. Financial intermediaries may open an account with $250,
but may require their clients to meet different investment minimums. See
INVESTING THROUGH A FINANCIAL INTERMEDIARY for more information.

--------------------------------------------------------------------------------
Broker-dealer sponsored wrap program accounts
and/or fee-based accounts                                             No minimum
--------------------------------------------------------------------------------
Coverdell Education Savings Account (CESA)                            $2,000(1)
--------------------------------------------------------------------------------
Employer-sponsored retirement plans                                   No minimum
--------------------------------------------------------------------------------


(1)  THE MINIMUM INITIAL INVESTMENT FOR FINANCIAL INTERMEDIARIES IS $250.
     FINANCIAL INTERMEDIARIES MAY HAVE DIFFERENT MINIMUMS FOR THEIR CLIENTS.

SUBSEQUENT PURCHASES

There is a $50 minimum for subsequent purchases. See WAYS TO MANAGE YOUR ACCOUNT
for more information about making additional investments directly with American
Century. However, there is no subsequent purchase minimum for financial
intermediaries or employer-sponsored retirement plans, but financial
intermediaries may require their clients to meet different subsequent purchase
requirements.

REDEMPTIONS

Your redemption proceeds will be calculated using the NET ASSET VALUE (NAV) next
determined after we receive your transaction request in good order.

     [GRAPHIC OF TRIANGLE]




     A FUND'S NET ASSET VALUE, OR NAV, IS THE PRICE OF THE FUND'S SHARES.

However, we reserve the right to delay delivery of redemption proceeds up to
seven days. For example, each time you make an investment with American Century,
there is a seven-day holding period before we will release redemption proceeds
from those shares, unless you provide us with satisfactory proof that your
purchase funds have cleared. Investments by wire generally require only a
one-day holding period. If you change your address, we may require that any
redemption request made within 15 days be submitted in writing and be signed by
all authorized signers with their signatures guaranteed. If you change your bank
information, we may impose a 15-day holding period before we will transfer or
wire redemption proceeds to your bank. Please remember, if you request
redemptions by wire, $10 will be deducted from the amount redeemed. Your bank
also may charge a fee.

In addition, we reserve the right to honor certain redemptions with securities,
rather than cash, as described in the next section.

SPECIAL REQUIREMENTS FOR LARGE REDEMPTIONS

If, during any 90-day period, you redeem fund shares worth more than $250,000
(or 1% of the value of a fund's assets if that amount is less than $250,000), we
reserve the right to pay part or all of the redemption proceeds in excess of
this amount in readily marketable securities instead of in cash. The portfolio
managers would select these securities from the fund's portfolio.


------
19


We will value these securities in the same manner as we do in computing the
fund's net asset value. We may provide these securities in lieu of cash without
prior notice. Also, if payment is made in securities, you may have to pay
brokerage or other transaction costs to convert the securities to cash.

If your redemption would exceed this limit and you would like to avoid being
paid in securities, please provide us with an unconditional instruction to
redeem at least 15 days prior to the date on which the redemption transaction is
to occur. The instruction must specify the dollar amount or number of shares to
be redeemed and the date of the transaction. This minimizes the effect of the
redemption on a fund and its remaining investors.

REDEMPTION OF SHARES IN ACCOUNTS BELOW MINIMUM

If your account balance falls below the minimum initial investment amount for
any reason other than as a result of market fluctuation, American Century
reserves the right to redeem the shares in the account and send the proceeds to
your address of record. Prior to doing so, we will notify you and give you 90
days to meet the minimum. Please note that you may incur tax liability as a
result of the redemption.

SIGNATURE GUARANTEES

A signature guarantee - which is different from a notarized signature - is a
warranty that the signature presented is genuine. We may require a signature
guarantee for the following transactions.

*  You have chosen to conduct business in writing only and would like to
   redeem over $100,000.

*  Your redemption or distribution check, Check-A-Month or automatic
   redemption is made payable to someone other than the account owners.

*  Your redemption proceeds or distribution amount is sent by EFT (ACH or
   wire) to a destination other than your personal bank account.

*  You are transferring ownership of an account over $100,000.

*  You change your address and request a redemption over $100,000 within 15
   days.

*  You change your bank information and request a redemption within 15 days.

We reserve the right to require a signature guarantee for other transactions, at
our discretion.

MODIFYING OR CANCELING AN INVESTMENT

Investment instructions are irrevocable. That means that once you have mailed or
otherwise transmitted your investment instruction, you may not modify or cancel
it. Each fund reserves the right to suspend the offering of shares for a period
of time and to reject any specific investment (including a purchase by
exchange). Additionally, we may refuse a purchase if, in our judgment, it is of
a size that would disrupt the management of a fund.

ABUSIVE TRADING PRACTICES

Short-term trading and other so-called market timing practices are not defined
or explicitly prohibited by any federal or state law. However, short-term
trading and other abusive trading practices may disrupt portfolio management
strategies and harm fund performance. If the cumulative amount of short-term
trading activity is


------
20


significant relative to a fund's net assets, the fund may incur trading costs
that are higher than necessary as securities are first purchased then quickly
sold to meet the redemption request. In such case, the fund's performance could
be negatively impacted by the increased trading costs created by short-term
trading if the additional trading costs are significant.

Because of the potentially harmful effects of abusive trading practices, the
funds' Board of Trustees has approved American Century's abusive trading
policies and procedures, which are designed to reduce the frequency and effect
of these activities in our funds. These policies and procedures include
monitoring trading activity, imposing trading restrictions on certain accounts,
imposing redemption fees on certain funds, and using fair value pricing when
current market prices are not readily available. Although these efforts are
designed to discourage abusive trading practices, they cannot eliminate the
possibility that such activity will occur. American Century seeks to exercise
its judgment in implementing these tools to the best of its ability in a manner
that it believes is consistent with shareholder interests.

American Century uses a variety of techniques to monitor for and detect abusive
trading practices. These techniques may vary depending on the type of fund, the
class of shares or whether the shares are held directly or indirectly with
American Century. They may change from time to time as determined by American
Century in its sole discretion. To minimize harm to the funds and their
shareholders, we reserve the right to reject any purchase order (including
exchanges) from any shareholder we believe has a history of abusive trading or
whose trading, in our judgment, has been or may be disruptive to the funds. In
making this judgment, we may consider trading done in multiple accounts under
common ownership or control.

Currently, for shares held directly with American Century, we may deem the sale
of all or a substantial portion of a shareholder's purchase of fund shares to be
abusive if the sale is made

*  within seven days of the purchase, or

*  within 30 days of the purchase, if it happens more than once per year.

To the extent practicable, we try to use the same approach for defining abusive
trading for shares held through financial intermediaries. American Century
reserves the right, in its sole discretion, to identify other trading practices
as abusive and to modify its monitoring and other practices as necessary to deal
with novel or unique abusive trading practices.

In addition, American Century reserves the right to accept purchases and
exchanges in excess of the trading restrictions discussed above if it believes
that such transactions would not be inconsistent with the best interests of fund
shareholders or this policy.

American Century's policies do not permit us to enter into arrangements with
fund shareholders that permit such shareholders to engage in frequent purchases
and redemptions of fund shares. Due to the complexity and subjectivity involved
in identifying abusive trading activity and the volume of shareholder
transactions American Century handles, there can be no assurance that American
Century's efforts will identify all trades or trading practices that may be
considered abusive. American Century monitors aggregate trades placed in omnibus
accounts and works with financial intermediaries to identify shareholders
engaging in abusive trading practices and impose restrictions to discourage such
practices. Because American Century relies on financial intermediaries to
provide information and impose restrictions, our ability to monitor and
discourage abusive trading practices in omnibus accounts may be dependent upon
the intermediaries' timely performance of such duties.



------
21


YOUR RESPONSIBILITY FOR UNAUTHORIZED TRANSACTIONS

American Century and its affiliated companies use procedures reasonably designed
to confirm that telephone, electronic and other instructions are genuine. These
procedures include recording telephone calls, requesting personalized security
codes or other information, and sending confirmation of transactions. If we
follow these procedures, we are not responsible for any losses that may occur
due to unauthorized instructions. For transactions conducted over the Internet,
we recommend the use of a secure Internet browser. In addition, you should
verify the accuracy of your confirmation statements immediately after you
receive them.

A NOTE ABOUT MAILINGS TO SHAREHOLDERS

To reduce the amount of mail you receive from us, we may deliver a single copy
of certain investor documents (such as shareholder reports and prospectuses) to
investors who share an address, even if accounts are registered under different
names. If you prefer to receive multiple copies of these documents individually
addressed, please call us or your financial professional. For American Century
Brokerage accounts, please call 1-888-345-2071.

RIGHT TO CHANGE POLICIES

We reserve the right to change any stated investment requirement, including
those that relate to purchases, exchanges and redemptions. We also may alter,
add or discontinue any service or privilege. Changes may affect all investors or
only those in certain classes or groups. In addition, from time to time we may
waive a policy on a case-by-case basis, as the advisor deems appropriate.


------
22





SHARE PRICE AND DISTRIBUTIONS




SHARE PRICE

American Century will price the fund shares you purchase, exchange or redeem at
the net asset value (NAV) next determined after your order is received and
accepted by the fund's transfer agent, or other financial intermediary with the
authority to accept orders on the fund's behalf. We determine the NAV of each
fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New
York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE
is closed (including certain U.S. national holidays), we do not calculate the
NAV. A fund's NAV is the current value of the fund's assets, minus any
liabilities, divided by the number of shares outstanding.

Each fund values portfolio securities for which market quotations are readily
available at their market price. The fund may use pricing services to assist in
the determination of market value. Unlisted securities for which market
quotations are readily available are valued at the last quoted sale price or the
last quoted ask price, as applicable, except that debt obligations with 60 days
or less remaining until maturity may be valued at amortized cost.

If the fund determines that the market price for a portfolio security is not
readily available or that the valuation methods mentioned above do not reflect
the security's fair value, such security is valued as determined in good faith
by the fund's board or its designee, in accordance with procedures adopted by
the fund's board. Circumstances that may cause the fund to use alternate
procedures to value a security include, but are not limited to, a debt security
has been declared in default or trading in a security has been halted during the
trading day.

If such circumstances occur, the fund will fair value the security if the fair
valuation would materially impact the fund's NAV. While fair value
determinations involve judgments that are inherently subjective, these
determinations are made in good faith in accordance with procedures adopted by
the fund's board.

The effect of using fair value determinations is that the fund's NAV will be
based, to some degree, on security valuations that the board or its designee
believes are fair rather than being solely determined by the market.

With respect to any portion of the fund's assets that are invested in one or
more open-end management investment companies that are registered with the SEC
(known as registered investment companies, or RICs), the fund's NAV will be
calculated based upon the NAVs of such RICs. These RICs are required by law to
explain the circumstances under which they will use fair value pricing and the
effects of using fair value pricing in their prospectuses.

DISTRIBUTIONS

Federal tax laws require each fund to make distributions to its shareholders in
order to qualify as a regulated investment company. Qualification as a regulated
investment company means a fund should not be subject to state or federal income
tax on amounts distributed. The distributions generally consist of dividends and
interest received by a fund, as well as CAPITAL GAINS realized by a fund on the
sale of its investment securities. Each fund generally pays distributions from
net income and capital gains, if any, once a year in December. The funds may
make more frequent distributions, if necessary, to comply with Internal Revenue
Code provisions.


     [GRAPHIC OF TRIANGLE]

     CAPITAL GAINS ARE INCREASES IN THE VALUES OF CAPITAL ASSETS,
     SUCH AS STOCK, FROM THE TIME THE ASSETS ARE PURCHASED.


------
23


You will participate in fund distributions when they are declared, starting the
next business day after your purchase is effective. For example, if you purchase
shares on a day that a distribution is declared, you will not receive that
distribution. If you redeem shares, you will receive any distribution declared
on the day you redeem. If you redeem all shares, we will include any
distributions received with your redemption proceeds.

Participants in tax-deferred retirement plans must reinvest all distributions.
For investors investing through taxable accounts, we will reinvest distributions
unless you elect to have dividends and/or capital gains sent to another American
Century account, to your bank electronically, or to your home address or to
another person or address by check.

REVERSE SHARE SPLITS

When a fund pays its distributions, the board also declares a reverse share
split for that fund that exactly offsets the per-share amount of the
distribution. If you reinvest your dividends, this reverse share split means
that you will hold exactly the same number of shares after a dividend as you did
before. This reverse share split makes changes in the fund's share prices behave
like changes in the values of zero-coupon securities.

FUND LIQUIDATION

During a fund's target maturity year, the Board of Trustees will adopt a plan of
liquidation that specifies the last day investors can open a new account, the
last day the fund will accept new investments from existing investors, and the
liquidation date of the fund. During the fund's target maturity year, you will
be asked how you want to receive the proceeds from the liquidation of your
shares. You can choose one of the following

*  cash

*  shares of another American Century mutual fund


------
24


TAXES

The tax consequences of owning shares of the funds will vary depending on
whether you own them through a taxable or tax-deferred account. Tax consequences
result from distributions by the funds of dividend and interest income they have
received or capital gains they have generated through their investment
activities. Tax consequences also may result when investors sell fund shares
after the net asset value has increased or decreased.

Tax-Deferred Accounts

If you purchase fund shares through a tax-deferred account, such as an IRA or a
qualified employer-sponsored retirement or savings plan, income and capital
gains distributions usually will not be subject to current taxation but will
accumulate in your account under the plan on a tax-deferred basis. Likewise,
moving from one fund to another fund within a plan or tax-deferred account
generally will not cause you to be taxed. For information about the tax
consequences of making purchases or withdrawals through a tax-deferred account,
please consult your plan administrator, your summary plan description or a tax
advisor.

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your
investments if the fund makes distributions or if you sell your fund shares.




Taxability of Distributions

Fund distributions may consist of income, such as dividends and interest earned
by a fund from its investments, or capital gains generated by a fund from the
sale of its investment securities. Distributions of income are taxed as ordinary
income, unless they are designated as QUALIFIED DIVIDEND INCOME and you meet a
minimum required holding period with respect to your shares of the fund, in
which case distributions of income are taxed as long-term capital gains.

     [GRAPHIC OF TRIANGLE]



     QUALIFIED DIVIDEND INCOME IS A DIVIDEND RECEIVED BY A FUND FROM THE
     STOCK OF A DOMESTIC OR QUALIFYING FOREIGN CORPORATION, PROVIDED THAT THE
     FUND HAS HELD THE STOCK FOR A REQUIRED HOLDING PERIOD.

For capital gains and for income distributions designated as qualified dividend
income, the following rates apply:

                                      TAX RATE FOR 10% AND    TAX RATE FOR
TYPE OF DISTRIBUTION                  15% BRACKETS            ALL OTHER BRACKETS
--------------------------------------------------------------------------------
Short-term capital gains              Ordinary Income         Ordinary Income
--------------------------------------------------------------------------------
Long-term capital gains ( 1 year)
and Qualified Dividend Income         5%                      15%
--------------------------------------------------------------------------------


If a fund's distributions exceed its taxable income and capital gains realized
during the tax year, all or a portion of the distributions made by the fund in
that tax year will be considered a return of capital. A return of capital
distribution is generally not subject to tax, but will reduce your cost basis in
the fund and result in higher realized capital gains (or lower realized capital
losses) upon the sale of fund shares.


------
25


The tax status of any distributions of capital gains is determined by how long a
fund held the underlying security that was sold, not by how long you have been
invested in the fund, or whether you reinvest your distributions in additional
shares or take them in cash. For taxable accounts, American Century or your
financial intermediary will inform you of the tax status of fund distributions
for each calendar year in an annual tax mailing.

Distributions also may be subject to state and local taxes. Because everyone's
tax situation is unique, you may want to consult your tax professional about
federal, state and local tax consequences.

Taxes on Transactions

Your redemptions-including exchanges to other American Century funds-are subject
to capital gains tax. The table above can provide a general guide for your
potential tax liability when selling or exchanging fund shares. Short-term
capital gains are gains on fund shares you held for 12 months or less. Long-term
capital gains are gains on fund shares you held for more than 12 months. If your
shares decrease in value, their sale or exchange will result in a long-term or
short-term capital loss. However, you should note that loss realized upon the
sale or exchange of shares held for six months or less will be treated as a
long-term capital loss to the extent of any distribution of long-term capital
gain to you with respect to those shares. If a loss is realized on the
redemption of fund shares, the reinvestment in additional fund shares within 30
days before or after the redemption may be subject to the wash sale rules of the
Internal Revenue Code. This may result in a postponement of the recognition of
such loss for federal income tax purposes.

If you have not certified to us that your Social Security number or tax
identification number is correct and that you are not subject to withholding, we
are required to withhold and pay to the IRS the applicable federal withholding
tax rate on taxable dividends, capital gains distributions and redemption
proceeds.

Buying a Dividend

Purchasing fund shares in a taxable account shortly before a distribution is
sometimes known as buying a dividend. In taxable accounts, you must pay income
taxes on the distribution whether you reinvest the distribution or take it in
cash. In addition, you will have to pay taxes on the distribution whether the
value of your investment decreased, increased or remained the same after you
bought the fund shares.

The risk in buying a dividend is that a fund's portfolio may build up taxable
gains throughout the period covered by a distribution, as securities are sold at
a profit. The fund distributes those gains to you, after subtracting any losses,
even if you did not own the shares when the gains occurred.

If you buy a dividend, you incur the full tax liability of the distribution
period, but you may not enjoy the full benefit of the gains realized in the
fund's portfolio.


------
26


MULTIPLE CLASS INFORMATION

American Century offers the following classes of shares of the funds: Investor
Class and Advisor Class.

The classes have different fees, expenses and/or minimum investment
requirements. The difference in the fee structures between the classes is the
result of their separate arrangements for shareholder and distribution services.
It is not the result of any difference in advisory or custodial fees or other
expenses related to the management of the funds' assets, which do not vary by
class. Different fees and expenses will affect performance.

Except as described below, all classes of shares of a fund have identical
voting, dividend, liquidation and other rights, preferences, terms and
conditions. The only differences between the classes are (a) each class may be
subject to different expenses specific to that class; (b) each class has a
different identifying designation or name; (c) each class has exclusive voting
rights with respect to matters solely affecting such class; and (d) each class
may have different exchange privileges.




Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan
to pay certain expenses associated with the distribution of their shares out of
fund assets. The Advisor Class offered by this prospectus has a 12b-1 plan.
Under the Advisor Class Plan, the funds' Advisor Class pays the distributor an
annual fee of 0.25% of Advisor Class average net assets for distribution and
individual shareholder services, including past distribution services. The
distributor pays all or a portion of such fees to the financial intermediaries
that make Advisor Class shares available. Because these fees may be used to pay
for services that are not related to prospective sales of the funds, the Advisor
Class will continue to make payments under its plan even if it is closed to new
investors. Because these fees are paid out of the funds' assets on an ongoing
basis, over time these fees will increase the cost of your investment and may
cost you more than paying other types of sales charges. For additional
information about the plan and its terms, see MULTIPLE CLASS STRUCTURE in the
statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative
services for their clients that would otherwise be performed by American
Century's transfer agent. In some circumstances, the advisor will pay such
service providers a fee for performing those services. Also, the advisor and the
funds' distributor may make payments to intermediaries for various additional
services, other expenses and/or the intermediaries' distribution of the funds
out of their profits or other available sources. Such payments may be made for
one or more of the following: (1) distribution, which may include expenses
incurred by intermediaries for their sales activities with respect to the funds,
such as preparing, printing and distributing sales literature and advertising
materials and compensating registered representatives or other employees of such
financial intermediaries for their sales activities, as well as the opportunity
for the funds to be made available by such intermediaries; (2) shareholder
services, such as providing individual and custom investment advisory services
to clients of the financial intermediaries; and (3) marketing and promotional
services, including business planning assistance, educating personnel about the
funds, and sponsorship of sales meetings, which may include covering costs of
providing speakers, meals and other entertainment. The distributor may sponsor
seminars and conferences designed to educate intermediaries about the funds and
may cover the expenses associated with attendance at such meetings, including
travel costs. These payments and activities are intended to provide an incentive
to intermediaries to sell the funds by educating them about the funds and
helping defray the costs associated with offering the funds. The amount of any
payments described by this paragraph is determined by the advisor or the
distributor, and all such amounts are paid out of the available assets of the
advisor and distributor, and not by you or the funds. As a result, the total
expense ratio of the funds will not be affected by any such payments.



------
27





FINANCIAL HIGHLIGHTS

UNDERSTANDING THE FINANCIAL HIGHLIGHTS

The tables on the next few pages itemize what contributed to the changes in
share price during the most recently ended fiscal year. They also show the
changes in share price for this period in comparison to changes over the last
five fiscal years.

On a per-share basis, each table includes as appropriate

*  share price at the beginning of the period

*  investment income and capital gains or losses

*  distributions of income and capital gains paid to investors

*  reverse share split

*  share price at the end of the period

Each table also includes some key statistics for the period as appropriate

*  TOTAL RETURN - the overall percentage of return of the fund, assuming the
   reinvestment of all distributions

*  EXPENSE RATIO - the operating expenses of the fund as a percentage of
   average net assets

*  NET INCOME RATIO - the net investment income of the fund as a percentage
   of average net assets

*  PORTFOLIO TURNOVER - the percentage of the fund's investment portfolio
   that is replaced during the period

The Financial Highlights have been audited by PricewaterhouseCoopers LLP,
independent registered public accounting firm. Their Report of Independent
Registered Public Accounting Firm and the financial statements are included in
the funds' annual report, which is available upon request.


------
28




TARGET 2010 FUND
Investor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                       2007      2006      2005      2004      2003
---------------------------------------------------------------------------------------
PER-SHARE DATA
---------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period   $90.10    $87.97    $86.70    $84.49    $81.12
                                       ------------------------------------------------
Income From Investment Operations
   Net Investment Income(1)            4.15      4.04      3.85      3.65      3.45

   Net Realized and
   Unrealized Gain (Loss)              0.98      (1.91)    (2.58)    (1.44)    (0.08)
                                       ------------------------------------------------
   Total From Investment Operations    5.13      2.13      1.27      2.21      3.37
                                       ------------------------------------------------
Distributions
   From Net Investment Income          (4.29)    (3.85)    (3.86)    (3.94)    (3.46)

   From Net Realized Gains             (0.24)    (0.44)    (1.58)    (4.52)    (2.20)
                                       ------------------------------------------------
   Total Distributions                 (4.53)    (4.29)    (5.44)    (8.46)    (5.66)
                                       ------------------------------------------------
Reverse Share Split                    4.53      4.29      5.44      8.46      5.66
                                       ------------------------------------------------
Net Asset Value, End of Period         $95.23    $90.10    $87.97    $86.70    $84.49
                                       ================================================

TOTAL RETURN(2)                        5.69%     2.42%     1.47%     2.62%     4.15%

RATIOS/SUPPLEMENTAL DATA
---------------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                  0.57%     0.57%     0.58%     0.58%     0.59%

Ratio of Net Investment
Income  to Average Net Assets          4.52%     4.60%     4.39%     4.32%     4.21%

Portfolio Turnover Rate                36%       23%       22%       15%       45%

Net Assets, End of Period
(in thousands)                         $250,527  $215,810  $211,088  $215,621  $262,825
---------------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. THE TOTAL RETURN OF THE CLASSES MAY NOT
     PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT OF
     CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET VALUES
     WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN DIFFERENCES WOULD
     MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE CALCULATION OF NET
     ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE WITH SEC
     GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE BETWEEN ONE
     CLASS AND ANOTHER.


------
29




TARGET 2015 FUND
Investor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007      2006      2005      2004      2003
--------------------------------------------------------------------------------------
PER-SHARE DATA
--------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $77.69    $75.83    $72.10    $67.58    $64.60
                                      ------------------------------------------------
Income From Investment Operations
   Net Investment Income(1)           3.95      3.70      3.49      3.35      3.09

   Net Realized and
   Unrealized Gain (Loss)             0.15      (1.84)    0.24      1.17      (0.11)
                                      ------------------------------------------------
   Total From Investment Operations   4.10      1.86      3.73      4.52      2.98
                                      ------------------------------------------------
Distributions
   From Net Investment Income         (3.82)    (3.29)    (3.21)    (3.64)    (2.84)

   From Net Realized Gains            -         (0.65)    (1.33)    (2.19)    (0.16)
                                      ------------------------------------------------
   Total Distributions                (3.82)    (3.94)    (4.54)    (5.83)    (3.00)
                                      ------------------------------------------------
Reverse Share Split                   3.82      3.94      4.54      5.83      3.00
                                      ------------------------------------------------
Net Asset Value, End of Period        $81.79    $77.69    $75.83    $72.10    $67.58
                                      ================================================

TOTAL RETURN(2)                       5.28%     2.46%     5.18%     6.69%     4.61%





RATIOS/SUPPLEMENTAL DATA
--------------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.57%     0.57%     0.58%     0.58%     0.59%

Ratio of Net Investment
Income to Average Net Assets          5.01%     4.94%     4.68%     4.92%     4.72%

Portfolio Turnover Rate               21%       15%       9%        12%       17%

Net Assets, End of Period
(in thousands)                        $227,923  $197,387  $199,692  $156,287  $149,266
--------------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. THE TOTAL RETURN OF THE CLASSES MAY NOT
     PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT OF
     CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET VALUES
     WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN DIFFERENCES WOULD
     MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE CALCULATION OF NET
     ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE WITH SEC
     GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE BETWEEN ONE
     CLASS AND ANOTHER.


------
30




TARGET 2020 FUND
Investor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007      2006      2005      2004      2003
--------------------------------------------------------------------------------------
PER-SHARE DATA
--------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $59.03    $58.06    $52.32    $48.19    $46.23
                                      ------------------------------------------------
Income From Investment Operations
   Net Investment Income(1)           2.78      2.64      2.46      2.34      2.19

   Net Realized and
   Unrealized Gain (Loss)             (0.75)    (1.67)    3.28      1.79      (0.23)
                                      ------------------------------------------------
   Total From Investment Operations   2.03      0.97      5.74      4.13      1.96
                                      ------------------------------------------------
Distributions
   From Net Investment Income         (2.62)    (2.49)    (2.38)    (2.47)    (2.13)

   From Net Realized Gains            (0.29)    (0.55)    (0.97)    (2.63)    (3.37)
                                      ------------------------------------------------
   Total Distributions                (2.91)    (3.04)    (3.35)    (5.10)    (5.50)
                                      ------------------------------------------------
Reverse Share Split                   2.91      3.04      3.35      5.10      5.50
                                      ------------------------------------------------
Net Asset Value, End of Period        $61.06    $59.03    $58.06    $52.32    $48.19
                                      ================================================

TOTAL RETURN(2)                       3.44%     1.66%     10.97%    8.57%     4.24%

RATIOS/SUPPLEMENTAL DATA
--------------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.57%     0.57%     0.58%     0.57%     0.59%

Ratio of Net Investment
Income to Average Net Assets          4.68%     4.65%     4.38%     4.83%     4.68%

Portfolio Turnover Rate               49%       15%       10%       26%       45%

Net Assets, End of Period
(in thousands)                        $199,658  $192,341  $179,410  $173,662  $180,656
--------------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. THE TOTAL RETURN OF THE CLASSES MAY NOT
     PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT OF
     CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET VALUES
     WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN DIFFERENCES WOULD
     MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE CALCULATION OF NET
     ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE WITH SEC
     GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE BETWEEN ONE
     CLASS AND ANOTHER.


------
31




TARGET 2025 FUND
Investor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007      2006      2005      2004     2003
-------------------------------------------------------------------------------------
PER-SHARE DATA
-------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $51.59    $51.07    $43.80    $39.67   $38.95
                                      -----------------------------------------------
Income From Investment Operations
   Net Investment Income(1)           2.28      2.16      1.99      1.90     1.79

   Net Realized and
   Unrealized Gain (Loss)             (1.13)    (1.64)    5.28      2.23     (1.07)
                                      -----------------------------------------------
   Total From Investment Operations   1.15      0.52      7.27      4.13     0.72
                                      -----------------------------------------------
Distributions
   From Net Investment Income         (2.26)    (1.34)    (2.54)    (2.08)   (2.06)

   From Net Realized Gains            -         (0.35)    (6.03)    (2.17)   (2.36)
                                      -----------------------------------------------
   Total Distributions                (2.26)    (1.69)    (8.57)    (4.25)   (4.42)
                                      -----------------------------------------------
Reverse Share Split                   2.26      1.69      8.57      4.25     4.42
                                      -----------------------------------------------
Net Asset Value, End of Period        $52.74    $51.59    $51.07    $43.80   $39.67
                                      ===============================================

TOTAL RETURN(2)                       2.25%     1.02%     16.61%    10.41%   1.85%

RATIOS/SUPPLEMENTAL DATA
-------------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.57%     0.57%     0.58%     0.58%    0.59%

Ratio of Net Investment
Income to Average Net Assets          4.43%     4.40%     4.05%     4.74%    4.64%

Portfolio Turnover Rate               29%       13%       26%       24%      22%

Net Assets, End of Period
(in thousands)                        $226,358  $306,433  $191,326  $92,440  $151,701
-------------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. TOTAL RETURNS ARE CALCULATED BASED ON THE NET
     ASSET VALUE ON THE LAST BUSINESS DAY. THE TOTAL RETURN OF THE CLASSES MAY
     NOT PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT
     OF CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET
     VALUES WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN
     DIFFERENCES WOULD MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE
     CALCULATION OF NET ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE
     WITH SEC GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE
     BETWEEN ONE CLASS AND ANOTHER.


------
32




TARGET 2010 FUND
Advisor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007    2006    2005    2004    2003
----------------------------------------------------------------------------
PER-SHARE DATA
----------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $88.41  $86.54  $85.50  $83.53  $80.41
                                      --------------------------------------
Income From Investment Operations
   Net Investment Income(1)           3.85    3.75    3.57    3.39    3.21

   Net Realized and
   Unrealized Gain (Loss)             0.95    (1.88)  (2.53)  (1.42)  (0.09)
                                      --------------------------------------
   Total From Investment Operations   4.80    1.87    1.04    1.97    3.12
                                      --------------------------------------
Distributions
   From Net Investment Income         (4.06)  (3.63)  (3.64)  (3.72)  (3.27)

   From Net Realized Gains            (0.24)  (0.44)  (1.58)  (4.52)  (2.20)
                                      --------------------------------------
   Total Distributions                (4.30)  (4.07)  (5.22)  (8.24)  (5.47)
                                      --------------------------------------
Reverse Share Split                   4.30    4.07    5.22    8.24    5.47
                                      --------------------------------------
Net Asset Value, End of Period        $93.21  $88.41  $86.54  $85.50  $83.53
                                      ======================================

TOTAL RETURN(2)                       5.43%   2.16%   1.21%   2.36%   3.88%

RATIOS/SUPPLEMENTAL DATA
----------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.82%   0.82%   0.83%   0.83%   0.84%

Ratio of Net Investment
Income to Average Net Assets          4.27%   4.35%   4.14%   4.07%   3.96%

Portfolio Turnover Rate               36%     23%     22%     15%     45%

Net Assets, End of Period
(in thousands)                        $9,308  $5,830  $6,402  $5,096  $3,591
----------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. THE TOTAL RETURN OF THE CLASSES MAY NOT
     PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT OF
     CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET VALUES
     WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN DIFFERENCES WOULD
     MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE CALCULATION OF NET
     ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE WITH SEC
     GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE BETWEEN ONE
     CLASS AND ANOTHER.


------
33




TARGET 2015 FUND
Advisor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007    2006    2005    2004    2003
----------------------------------------------------------------------------
PER-SHARE DATA
----------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $76.33  $74.68  $71.19  $66.89  $64.10
                                      --------------------------------------
Income From Investment Operations
   Net Investment Income(1)           3.70    3.47    3.26    3.15    2.93

   Net Realized and
   Unrealized Gain (Loss)             0.13    (1.82)  0.23    1.15    (0.14)
                                      --------------------------------------
   Total From Investment Operations   3.83    1.65    3.49    4.30    2.79
                                      --------------------------------------
Distributions
   From Net Investment Income         (3.63)  (3.10)  (3.02)  (3.47)  (2.69)

   From Net Realized Gains            -       (0.65)  (1.33)  (2.19)  (0.16)
                                      --------------------------------------
   Total Distributions                (3.63)  (3.75)  (4.35)  (5.66)  (2.85)
                                      --------------------------------------
Reverse Share Split                   3.63    3.75    4.35    5.66    2.85
                                      --------------------------------------
Net Asset Value, End of Period        $80.16  $76.33  $74.68  $71.19  $66.89
                                      ======================================

TOTAL RETURN(2)                       5.01%   2.21%   4.90%   6.43%   4.35%

RATIOS/SUPPLEMENTAL DATA
----------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.82%   0.82%   0.83%   0.83%   0.84%

Ratio of Net Investment
Income to Average Net Assets          4.76%   4.69%   4.43%   4.67%   4.47%

Portfolio Turnover Rate               21%     15%     9%      12%     17%

Net Assets, End of Period
(in thousands)                        $9,506  $2,300  $1,295  $876    $498
----------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. TOTAL RETURNS ARE CALCULATED BASED ON THE NET
     ASSET VALUE ON THE LAST BUSINESS DAY. THE TOTAL RETURN OF THE CLASSES MAY
     NOT PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT
     OF CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET
     VALUES WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN
     DIFFERENCES WOULD MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE
     CALCULATION OF NET ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE
     WITH SEC GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE
     BETWEEN ONE CLASS AND ANOTHER.


------
34




TARGET 2020 FUND
Advisor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007     2006    2005     2004    2003
------------------------------------------------------------------------------
PER-SHARE DATA
------------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $57.93   $57.12  $51.60   $47.65  $45.83
                                      ----------------------------------------
Income From Investment Operations
   Net Investment Income(1)           2.58     2.45    2.29     2.18    2.06

   Net Realized and
   Unrealized Gain (Loss)             (0.74)   (1.64)  3.23     1.77    (0.24)
                                      ----------------------------------------
   Total From Investment Operations   1.84     0.81    5.52     3.95    1.82
                                      ----------------------------------------
Distributions
   From Net Investment Income         (2.47)   (2.35)  (2.25)   (2.35)  (2.02)

   From Net Realized Gains            (0.29)   (0.55)  (0.97)   (2.63)  (3.37)
                                      ----------------------------------------
   Total Distributions                (2.76)   (2.90)  (3.22)   (4.98)  (5.39)
                                      ----------------------------------------
Reverse Share Split                   2.76     2.90    3.22     4.98    5.39
                                      ----------------------------------------
Net Asset Value, End of Period        $59.77   $57.93  $57.12   $51.60  $47.65
                                      ========================================

TOTAL RETURN(2)                       3.18%    1.42%   10.70%   8.29%   3.97%

RATIOS/SUPPLEMENTAL DATA
------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.82%    0.82%   0.83%    0.83%   0.84%

Ratio of Net Investment
Income to Average Net Assets          4.43%    4.40%   4.13%    4.57%   4.43%

Portfolio Turnover Rate               49%      15%     10%      26%     45%

Net Assets, End of Period
(in thousands)                        $10,823  $8,635  $10,417  $4,073  $3,048
------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. THE TOTAL RETURN OF THE CLASSES MAY NOT
     PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT OF
     CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET VALUES
     WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN DIFFERENCES WOULD
     MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE CALCULATION OF NET
     ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE WITH SEC
     GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE BETWEEN ONE
     CLASS AND ANOTHER.


------
35




TARGET 2025 FUND
Advisor Class

FOR A SHARE OUTSTANDING THROUGHOUT THE YEARS ENDED SEPTEMBER 30
                                      2007     2006     2005    2004    2003
------------------------------------------------------------------------------
PER-SHARE DATA
------------------------------------------------------------------------------
Net Asset Value, Beginning of Period  $50.57   $50.18   $43.14  $39.18  $38.56
                                      ----------------------------------------
Income From Investment Operations
   Net Investment Income(1)           2.11     2.00     1.84    1.76    1.68

   Net Realized and
   Unrealized Gain (Loss)             (1.11)   (1.61)   5.20    2.20    (1.06)
                                      ----------------------------------------
   Total From Investment Operations   1.00     0.39     7.04    3.96    0.62
                                      ----------------------------------------
Distributions
   From Net Investment Income         (2.13)   (1.21)   (2.43)  (1.97)  (1.97)

   From Net Realized Gains            -        (0.35)   (6.03)  (2.17)  (2.36)
                                      ----------------------------------------
   Total Distributions                (2.13)   (1.56)   (8.46)  (4.14)  (4.33)
                                      ----------------------------------------
Reverse Share Split                   2.13     1.56     8.46    4.14    4.33
                                      ----------------------------------------
Net Asset Value, End of Period        $51.57   $50.57   $50.18  $43.14  $39.18
                                      ========================================

TOTAL RETURN(2)                       1.97%    0.77%    16.33%  10.11%  1.61%

RATIOS/SUPPLEMENTAL DATA
------------------------------------------------------------------------------
Ratio of Operating Expenses
to Average Net Assets                 0.82%    0.82%    0.83%   0.83%   0.84%

Ratio of Net Investment
Income  to Average Net Assets         4.18%    4.15%    3.80%   4.49%   4.39%

Portfolio Turnover Rate               29%      13%      26%     24%     22%

Net Assets, End of Period
(in thousands)                        $28,709  $21,428  $6,072  $578    $595
------------------------------------------------------------------------------


(1)  COMPUTED USING AVERAGE SHARES OUTSTANDING THROUGHOUT THE PERIOD.

(2)  TOTAL RETURN ASSUMES REINVESTMENT OF NET INVESTMENT INCOME AND CAPITAL
     GAINS DISTRIBUTIONS, IF ANY. TOTAL RETURNS ARE CALCULATED BASED ON THE NET
     ASSET VALUE ON THE LAST BUSINESS DAY. THE TOTAL RETURN OF THE CLASSES MAY
     NOT PRECISELY REFLECT THE CLASS EXPENSE DIFFERENCES BECAUSE OF THE IMPACT
     OF CALCULATING THE NET ASSET VALUES TO TWO DECIMAL PLACES. IF NET ASSET
     VALUES WERE CALCULATED TO THREE DECIMAL PLACES, THE TOTAL RETURN
     DIFFERENCES WOULD MORE CLOSELY REFLECT THE CLASS EXPENSE DIFFERENCES. THE
     CALCULATION OF NET ASSET VALUES TO TWO DECIMAL PLACES IS MADE IN ACCORDANCE
     WITH SEC GUIDELINES AND DOES NOT RESULT IN ANY GAIN OR LOSS OF VALUE
     BETWEEN ONE CLASS AND ANOTHER.


------
36


NOTES


------
37


MORE INFORMATION ABOUT THE FUNDS IS CONTAINED IN THESE DOCUMENTS

Annual and Semiannual Reports

Annual and semiannual reports contain more information about the funds'
investments and the market conditions and investment strategies that
significantly affected the funds' performance during the most recent fiscal
period.

Statement of Additional Information (SAI)

The SAI contains a more detailed legal description of the funds' operations,
investment restrictions, policies and practices. The SAI is incorporated by
reference into this prospectus. This means that it is legally part of this
prospectus, even if you don't request a copy.

You may obtain a free copy of the SAI or annual and semiannual reports, and ask
questions about the funds or your accounts, online at americancentury.com, by
contacting American Century at the addresses or telephone numbers listed below
or by contacting your financial intermediary.

You also can get information about the funds (including the SAI) from the
Securities and Exchange Commission (SEC). The SEC charges a duplicating fee to
provide copies of this information.



IN PERSON              SEC Public Reference Room, Washington, D.C.
                       Call 202-942-8090 for location and hours.

ON THE INTERNET        * EDGAR database at sec.gov
                       * By email request at publicinfo@sec.gov

BY MAIL                SEC Public Reference Section
                       Washington, D.C. 20549- 0102


This prospectus shall not constitute an offer to sell securities of a fund in
any state, territory, or other jurisdiction where the fund's shares have not
been registered or qualified for sale, unless such registration or qualification
is not required, or under any circumstances in which such offer or solicitation
would be unlawful.



FUND REFERENCE            FUND CODE          TICKER          NEWSPAPER LISTING
--------------------------------------------------------------------------------
Target 2010 Fund
  Investor Class          965                BTTNX           Tg2010
--------------------------------------------------------------------------------
  Advisor Class           765                ACTRX           Tg2010
--------------------------------------------------------------------------------
Target 2015 Fund
  Investor Class          966                BTFTX           Tg2015
--------------------------------------------------------------------------------
  Advisor Class           766                ACTTX           Tg2015
--------------------------------------------------------------------------------
Target 2020 Fund
  Investor Class          967                BTTTX           Tg2020
--------------------------------------------------------------------------------
  Advisor Class           767                ACTEX           Tg2020
--------------------------------------------------------------------------------
Target 2025 Fund
  Investor Class          968                BTTRX           Tg2025
--------------------------------------------------------------------------------
  Advisor Class           768                ACTVX           Tg2025
--------------------------------------------------------------------------------




Investment Company Act File No. 811-4165

AMERICAN CENTURY INVESTMENTS
americancentury.com
                                   Banks and Trust Companies, Broker-Dealers,
Self-Directed Retail Investors     Financial Professionals, Insurance Companies
P.O. Box 419200                    P.O. Box 419786
Kansas City, Missouri 64141-6200   Kansas City, Missouri 64141-6786
1-800-345-2021 or 816-531-5575     1-800-345-6488

0802
SH-PRS-57699






February 1, 2008 AMERICAN CENTURY INVESTMENTS
STATEMENT OF ADDITIONAL INFORMATION American Century Target Maturities Trust Target 2010 Fund Target 2015 Fund Target 2020 Fund Target 2025 Fund THIS STATEMENT OF ADDITIONAL INFORMATION ADDS TO THE DISCUSSION IN THE FUNDS' PROSPECTUS DATED FEBRUARY 1, 2008 BUT IS NOT A PROSPECTUS. THE STATEMENT OF ADDITIONAL INFORMATION SHOULD BE READ IN CONJUNCTION WITH THE FUNDS' CURRENT PROSPECTUS. IF YOU WOULD LIKE A COPY OF THE PROSPECTUS, PLEASE CONTACT US AT THE ADDRESS OR TELEPHONE NUMBERS LISTED ON THE BACK COVER OR VISIT AMERICAN CENTURY'S WEB SITE AT AMERICANCENTURY.COM. THIS STATEMENT OF ADDITIONAL INFORMATION INCORPORATES BY REFERENCE CERTAIN INFORMATION THAT APPEARS IN THE FUNDS' ANNUAL AND SEMIANNUAL REPORTS, WHICH ARE DELIVERED TO ALL INVESTORS. YOU MAY OBTAIN A FREE COPY OF THE FUNDS' ANNUAL OR SEMIANNUAL REPORTS BY CALLING 1-800-345-2021. American Century Investment Services, Inc., Distributor [american century investments logo and text logo] American Century Investment Services, Inc., Distributor ©2008 American Century Proprietary Holdings, Inc. All rights reserved. The American Century Investments logo, American Century and American Century Investments are service marks of American Century Proprietary Holdings, Inc. Table of Contents The Funds' History. . . . . . . . . . . . . . . . . . . . . . . 2 Fund Investment Guidelines . . . . . . . . . . . . . . . . . . . 2 Fund Investments and Risks . . . . . . . . . . . . . . . . . . . 3 Investment Strategies and Risks . . . . . . . . . . . . . . . 3 Investment Policies . . . . . . . . . . . . . . . . . . . . . 7 Temporary Defensive Measures. . . . . . . . . . . . . . . . . 8 Portfolio Turnover. . . . . . . . . . . . . . . . . . . . . . 9 Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 The Board of Trustees . . . . . . . . . . . . . . . . . . . . 11 Ownership of Fund Shares. . . . . . . . . . . . . . . . . . . 14 Code of Ethics. . . . . . . . . . . . . . . . . . . . . . . . 14 Proxy Voting Guidelines . . . . . . . . . . . . . . . . . . . 14 Disclosure of Portfolio Holdings. . . . . . . . . . . . . . . 15 The Funds' Principal Shareholders. . . . . . . . . . . . . . . . 20 Service Providers. . . . . . . . . . . . . . . . . . . . . . . . 21 Investment Advisor. . . . . . . . . . . . . . . . . . . . . . 21 Portfolio Managers. . . . . . . . . . . . . . . . . . . . . . 24 Transfer Agent and Administrator. . . . . . . . . . . . . . . 27 Distributor . . . . . . . . . . . . . . . . . . . . . . . . . 27 Custodian Banks . . . . . . . . . . . . . . . . . . . . . . . 28 Independent Registered Public Accounting Firm . . . . . . . . 28 Brokerage Allocation . . . . . . . . . . . . . . . . . . . . . . 28 Regular Broker-Dealers. . . . . . . . . . . . . . . . . . . . 28 Information About Fund Shares. . . . . . . . . . . . . . . . . . 29 Fund Liquidations . . . . . . . . . . . . . . . . . . . . . . 30 Multiple Class Structure. . . . . . . . . . . . . . . . . . . 30 Buying and Selling Fund Shares. . . . . . . . . . . . . . . . 34 Valuation of a Fund's Securities. . . . . . . . . . . . . . . 34 Taxes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Financial Statements . . . . . . . . . . . . . . . . . . . . . . 36 Explanation of Fixed-Income Securities Ratings . . . . . . . . . 37 ------ 1 THE FUNDS' HISTORY American Century Target Maturities Trust is a registered open-end management investment company that was organized as a Massachusetts business trust on March 25, 1985. Until January 1997, it was known as Benham Target Maturities Trust. Throughout this statement of additional information we refer to American Century Target Maturities Trust as the trust. Each fund described in this statement of additional information is a separate series of the trust and operates for many purposes as if it were an independent company. Each fund has its own investment objective, strategy, management team, assets, and tax identification and stock registration number. FUND TICKER SYMBOL INCEPTION DATE -------------------------------------------------------------------------------- Target 2010 Fund Investor Class BTTNX 03/25/1985 -------------------------------------------------------------------------------- Advisor Class ACTRX 10/20/1998 -------------------------------------------------------------------------------- Target 2015 Fund Investor Class BTFTX 09/01/1986 -------------------------------------------------------------------------------- Advisor Class ACTTX 07/23/1999 -------------------------------------------------------------------------------- Target 2020 Fund Investor Class BTTTX 12/29/1989 -------------------------------------------------------------------------------- Advisor Class ACTEX 10/19/1998 -------------------------------------------------------------------------------- Target 2025 Fund Investor Class BTTRX 02/15/1996 -------------------------------------------------------------------------------- Advisor Class ACTVX 06/01/1998 -------------------------------------------------------------------------------- FUND INVESTMENT GUIDELINES This section explains the extent to which the funds' advisor, American Century Investment Management, Inc., can use various investment vehicles and strategies in managing a fund's assets. Descriptions of the investment techniques and risks associated with each appear in the section, INVESTMENT STRATEGIES AND RISKS, which begins on the next page. In the case of the funds' principal investment strategies, these descriptions elaborate upon the discussion contained in the prospectus. Each fund is diversified as defined in the Investment Company Act of 1940 (the Investment Company Act). Diversified means that, with respect to 75% of its total assets, each fund will not invest more than 5% of its total assets in the securities of a single issuer or own more than 10% of the outstanding voting securities of a single issuer (other than U.S. government securities and securities of other investment companies). To meet federal tax requirements for qualification as a regulated investment company, each fund must limit its investments so that at the close of each quarter of its taxable year (1) no more than 25% of its total assets are invested in the securities of a single issuer (other than the U.S. government or a regulated investment company), and (2) with respect to at least 50% of its total assets, no more than 5% of its total assets are invested in the securities of a single issuer. ------ 2 FUND INVESTMENTS AND RISKS INVESTMENT STRATEGIES AND RISKS This section describes investment vehicles and techniques the portfolio managers can use in managing a fund's assets. It also details the risks associated with each, because each investment vehicle and technique contributes to a fund's overall risk profile. Cash Management Each fund may invest in U.S. government agency overnight discount notes or any money market fund, including those managed by the advisor, provided that the investment is consistent with the fund's investment policies and restrictions. In order to meet anticipated redemptions, anticipated purchases of additional securities for a fund's portfolio, or, in some cases, for temporary defensive purposes, the funds may invest a portion of their assets in money market and other short-term securities issued or guaranteed by the U.S. government and its agencies and instrumentalities. Coupon-Bearing U.S. Treasury Securities U.S. Treasury bills, notes and bonds are direct obligations of the U.S. Treasury. Historically, they have involved no risk of loss of principal if held to maturity. Between issuance and maturity, however, the prices of these securities change in response to changes in market interest rates. Coupon-bearing securities generate current interest payments, and part of a fund's return may come from reinvesting interest earned on these securities. Loans of Portfolio Securities Each fund may lend its portfolio securities to earn additional income. If a borrower defaults on a securities loan, the lending fund could experience delays in recovering the securities it loaned; if the value of the loaned securities increased over the value of the collateral, the fund could suffer a loss. To minimize the risk of default on securities loans, the advisor, American Century Investment Management, Inc., adheres to the following guidelines prescribed by the Board of Trustees governing lending of securities. These guidelines strictly govern (1) the type and amount of collateral that must be received by the fund; (2) the circumstances under which additions to that collateral must be made by borrowers; (3) the return received by the fund on the loaned securities; (4) the limitations on the percentage of fund assets on loan; and (5) the credit standards applied in evaluating potential borrowers of portfolio securities. In addition, the guidelines require that the fund have the option to terminate any loan of a portfolio security at any time and set requirements for recovery of securities from borrowers. Managing to the Target Year Anticipated Value at Maturity The maturity values of zero-coupon bonds are specified at the time the bonds are issued, and this feature, combined with the ability to calculate yield to maturity, has made these instruments popular investment vehicles for investors seeking reliable investments to meet long-term financial goals. ------ 3 To provide a comparable investment opportunity while allowing investors the flexibility to purchase or redeem shares each day the funds are open for business, each fund consists primarily of zero-coupon bonds but is actively managed to accommodate shareholder activity and to take advantage of perceived market opportunities. Because of this active management approach, the portfolio managers do not guarantee that a certain price per share will be attained by the time a fund is liquidated. Instead, the portfolio managers attempt to track the price behavior of a directly held zero-coupon U.S. Treasury security by: (1) Maintaining a weighted average maturity within the fund's target maturity year; (2) Investing at least 90% of assets in securities that mature within one year of the fund's target maturity year; (3) Investing a substantial portion of assets in Treasury STRIPS (the most liquid Treasury zero and in their equivalents); (4) Under normal conditions, maintaining a cash balance of less than 1%; (5) Executing portfolio transactions necessary to accommodate net shareholder purchases or redemptions on a daily basis; and (6) Whenever feasible, contacting several U.S. government securities dealers for each intended transaction in an effort to obtain the best price on each transaction. These measures enable the portfolio managers to calculate an anticipated value at maturity (AVM) for each fund that approximates the price per share the fund will achieve by its weighted average maturity date. The AVM calculation is as follows: AVM = NAV(1 + (AGR/2))^2T where NAV = the fund's current price per share, T = the fund's weighted average term to maturity in years, and AGR = the fund's anticipated growth rate. This calculation assumes that the shareholder will reinvest all dividend and capital gain distributions (if any). It also assumes an expense ratio and a portfolio composition that remain constant for the life of the fund. Because fund expenses and composition do not remain constant, the portfolio managers calculate AVM for each fund each day the funds are open for business. In addition to the measures described above, which the advisor believes are adequate to ensure close correspondence between the price behavior of each fund and the price behavior of directly held zero-coupon bonds with comparable maturities, each fund has made an undertaking to the Securities and Exchange Commission (SEC) that each fund will invest at least 90% of its net assets in zero-coupon bonds until it is within four years of its target maturity year and at least 80% of its net assets in zero-coupon securities while the fund is within two to four years of its target maturity year. This undertaking may be revoked if the market supply of zero-coupon securities diminishes unexpectedly, although it will not be revoked without prior consultation with the SEC. In addition, the advisor has undertaken that any coupon-bearing bond purchased on behalf of a fund will have a duration that falls within the fund's target maturity year. Anticipated Growth Rate The portfolio managers also calculate an anticipated growth rate (AGR) for each fund each day the funds are open for business. AGR calculated on the date of purchase is the annualized rate of growth an investor may expect from that purchase date to the fund's target maturity date. As is the case with calculations of AVM, the AGR calculation assumes that the investor will reinvest all dividends and capital gain distributions (if any) and that the fund's expense ratio and portfolio composition will remain constant. Each fund's AGR changes from day to day primarily because of changes in interest rates and, to a lesser extent, changes in portfolio composition and other factors that affect the value of the fund's investments. ------ 4 The advisor expects that shareholders who hold their shares until a fund's weighted average maturity date and who reinvest all dividends and capital gain distributions, if any, will realize an investment return and maturity value that do not differ substantially from the AGR and AVM calculated on the day his or her shares were purchased. As a demonstration of how the funds have behaved over time, the following tables show the AGR and AVM for the Investor Class of each fund as of September 30 for each of the past five years. The AVM for the Advisor Class of each fund will differ from that of the Investor Class, depending on the expenses of that class. The funds' share prices and growth rates are not guaranteed by the trust or any of its affiliates. There is no guarantee that the funds' AVMs and AGRs will fluctuate in the same manner in the future as they have in the past. ANTICIPATED GROWTH RATE 9/30/2003 9/30/2004 9/30/2005 9/30/2006 9/30/2007 -------------------------------------------------------------------------------- Target 2010 3.15% 3.30% 3.68% 4.01% 3.48% -------------------------------------------------------------------------------- Target 2015 4.30% 4.13% 4.02% 4.21% 4.10% -------------------------------------------------------------------------------- Target 2020 4.82% 4.62% 4.23% 4.41% 4.47% -------------------------------------------------------------------------------- Target 2025 5.01% 4.79% 4.22% 4.37% 4.54% -------------------------------------------------------------------------------- ANTICIPATED VALUE AT MATURITY 9/30/2003 9/30/2004 9/30/2005 9/30/2006 9/30/2007 -------------------------------------------------------------------------------- Target 2010 $105.22 $105.59 $105.62 $105.22 $105.39 -------------------------------------------------------------------------------- Target 2015 $112.88 $113.35 $113.00 $113.48 $113.32 -------------------------------------------------------------------------------- Target 2020 $107.48 $108.07 $108.21 $108.21 $107.97 -------------------------------------------------------------------------------- Target 2025 $117.43 $118.37 $116.83 $116.72 $117.85 -------------------------------------------------------------------------------- Other Investment Companies Each of the funds may invest in other investment companies, such as mutual funds, provided that the investment is consistent with the fund's investment policies and restrictions. Under the Investment Company Act, a fund's investment in such securities, subject to certain exceptions, currently is limited to * 3% of the total voting stock of any one investment company; * 5% of the fund's total assets with respect to any one investment company; and * 10% of a fund's total assets in the aggregate. A fund's investments in other investment companies may include money market funds managed by the advisor. Investments in money market funds are not subject to the percentage limitations set forth above. Such purchases will be made in the open market where no commission or profit to a sponsor or dealer results from the purchase other than the customary brokers' commissions. As a shareholder of another investment company, a fund would bear, along with other shareholders, its pro rata portion of the other investment company's expenses, including advisory fees. These expenses would be in addition to the management fee that each fund bears directly in connection with its own operations. Each fund may invest in exchange traded funds (ETFs), such as Standard & Poor's Depositary Receipts (SPDRs) and the Lehman Aggregate Bond ETF, with the same percentage limitations as investments in registered investment companies. ETFs are a type of fund bought and sold on a securities exchange. An ETF trades like common stock and usually represents a fixed portfolio of securities designed to track the performance and dividend yield of a particular domestic or foreign market index. A fund may purchase an ETF to temporarily gain exposure to a ------ 5 portion of the U.S. or a foreign market while awaiting purchase of underlying securities. The risks of owning an ETF generally reflect the risks of owning the underlying securities they are designed to track, although the lack of liquidity on an ETF could result in it being more volatile. Additionally, ETFs have management fees, which increase their cost. Zero-Coupon Securities Zero-coupon U.S. Treasury securities (or zeros) are the unmatured interest coupons and underlying principal portions of U.S. Treasury bonds. Unlike traditional U.S. Treasury securities, these securities are sold at a discount to their face value and all of the interest and principal is paid when the securities mature. Originally, these securities were created by broker-dealers who bought Treasury bonds and deposited these securities with a custodian bank. The broker-dealers then sold receipts representing ownership interests in the coupons or principal portions of the bonds. Some examples of zero-coupon securities sold through custodial receipt programs are CATS (Certificates of Accrual on Treasury Securities), TIGRs (Treasury Investment Growth Receipts) and generic TRs (Treasury Receipts). The U.S. Treasury subsequently introduced a program called Separate Trading of Registered Interest and Principal of Securities (STRIPS), through which it exchanges eligible securities for their component parts and then allows the component parts to trade in book-entry form. STRIPS are direct obligations of the U.S. government and have the same credit risks as other U.S. Treasury securities. Zero-coupon Treasury equivalent securities are government agency debt securities that are ultimately backed by obligations of the U.S. Treasury and are considered by the marketplace to be backed by the full faith and credit of the U.S. Treasury. These securities are created by financial institutions (like broker-dealers) and by U.S. government agencies. For example, the Resolution Funding Corporation (REFCORP) issues bonds whose interest payments are guaranteed by the U.S. Treasury and whose principal amounts are secured by zero-coupon U.S. Treasury securities held in a separate custodial account at the Federal Reserve Bank of New York. The principal amount and maturity date of REFCORP bonds are the same as the par amount and maturity date of the corresponding zeros; upon maturity, REFCORP bonds are repaid from the proceeds of the zeros. REFCORP zeros are the unmatured coupons and principal portions of REFCORP bonds. The U.S. government may issue securities in zero-coupon form. These securities are referred to as original issue zero-coupon securities. Zero-Coupon U.S. Government Agency Securities A number of U.S. government agencies issue debt securities. These agencies generally are created by Congress to fulfill a specific need, such as providing credit to homebuyers or farmers. Among these agencies are the Farm Home Loan Banks and the Federal Farm Credit Banks. Zero-coupon U.S. government agency securities operate in all respects like zero-coupon Treasury securities and their equivalents, except that they are created by separating a U.S. government agency bond's interest and principal payment obligations. The final maturity value of a zero-coupon U.S. government agency security is a debt obligation of the issuing agency. Some agency securities are backed by the full faith and credit of the U.S. government, while others are guaranteed only by the issuing agency. Agency securities typically offer somewhat higher yields than U.S. Treasury securities with similar maturities. However, these securities may involve greater risk of default than securities backed by the U.S. Treasury. The funds will limit their purchase of zero-coupon U.S. government agency securities to those that receive the highest rating (AAA) by an independent rating organization. ------ 6 Securities issued by U.S. government agencies in zero-coupon form are referred to as original issue zero-coupon securities. INVESTMENT POLICIES Unless otherwise indicated, with the exception of the percentage limitations on borrowing, the policies described below apply at the time a fund enters into a transaction. Accordingly, any later increase or decrease beyond the specified limitation resulting from a change in a fund's assets will not be considered in determining whether it has complied with its investment policies. Fundamental Investment Policies The funds' fundamental investment policies are set forth below. These investment policies and the funds' investment objectives set forth in the prospectus may not be changed without approval of a majority of the outstanding votes of shareholders of a fund, as determined in accordance with the Investment Company Act. SUBJECT POLICY -------------------------------------------------------------------------------- Senior Securities A fund may not issue senior securities, except as permitted under the Investment Company Act. -------------------------------------------------------------------------------- Borrowing A fund may not borrow money, except that a fund may borrow for temporary or emergency purposes (not for leveraging or investment) in an amount not exceeding 33-1/3% of the fund's total assets (including the amount borrowed) less liabilities (other than borrowings). -------------------------------------------------------------------------------- Lending A fund may not lend any security or make any other loan if, as a result, more than 33-1/3% of the fund's total assets would be lent to other parties, except (i) through the purchase of debt securities in accordance with its investment objective, policies and limitations or (ii) by engaging in repurchase agreements with respect to portfolio securities. -------------------------------------------------------------------------------- Real Estate A fund may not purchase or sell real estate unless acquired as a result of ownership of securities or other instruments. This policy shall not prevent a fund from investing in securities or other instruments backed by real estate or securities of companies that deal in real estate or are engaged in the real estate business. -------------------------------------------------------------------------------- Concentration A fund may not concentrate its investments in securities of issuers in a particular industry (other than securities issued or guaranteed by the U.S. government or any of its agencies or instrumentalities). -------------------------------------------------------------------------------- Underwriting A fund may not act as an underwriter of securities issued by others, except to the extent that the fund may be considered an underwriter within the meaning of the Securities Act of 1933 in the disposition of restricted securities. -------------------------------------------------------------------------------- Commodities A fund may not purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments, provided that this limitation shall not prohibit the fund from purchasing or selling options and futures contracts or from investing in securities or other instruments backed by physical commodities. -------------------------------------------------------------------------------- Control A fund may not invest for purposes of exercising control over management. -------------------------------------------------------------------------------- For purposes of the investment policies relating to lending and borrowing, the funds have received an exemptive order from the SEC regarding an interfund lending program. Under the terms of the exemptive order, the funds may borrow money from or lend money to other American Century-advised funds that permit such transactions. All such transactions will be subject to the limits on borrowing and lending set forth above. The funds will borrow money through the program only when the costs are equal to or lower than the cost of short-term bank loans. Interfund loans and borrowings normally extend only overnight, but can have a maximum duration of seven days. The funds will lend through the program only when the returns are ------ 7 higher than those available from other short-term instruments (such as repurchase agreements). The funds may have to borrow from a bank at a higher interest rate if an interfund loan is called or not renewed. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs. For purposes of the investment policy relating to concentration, a fund shall not purchase any securities that would cause 25% or more of the value of the fund's total assets at the time of purchase to be invested in the securities of one or more issuers conducting their principal business activities in the same industry, provided that (a) there is no limitation with respect to obligations issued or guaranteed by the U.S. government, any state, territory or possession of the United States, the District of Columbia or any of their authorities, agencies, instrumentalities or political subdivisions and repurchase agreements secured by such obligations, (b) wholly owned finance companies will be considered to be in the industries of their parents if their activities are primarily related to financing the activities of the parents, (c) utilities will be divided according to their services, for example, gas, gas transmission, electric and gas, electric, and telephone will each be considered a separate industry, and (d) personal credit and business credit businesses will be considered separate industries. Nonfundamental Investment Policies In addition, the funds are subject to the following investment policies that are not fundamental and may be changed by the Board of Trustees. SUBJECT POLICY -------------------------------------------------------------------------------- Leveraging A fund may not purchase additional investment securities at any time during which outstanding borrowings exceed 5% of the total assets of the fund. -------------------------------------------------------------------------------- Liquidity A fund may not purchase any security or enter into a repurchase agreement if, as a result, more than 15% of its net assets would be invested in illiquid securities. Illiquid securities include repurchase agreements not entitling the holder to payment of principal and interest within seven days, and securities that are illiquid by virtue of legal or contractual restrictions on resale or the absence of a readily available market. -------------------------------------------------------------------------------- Short Sales A fund may not sell securities short, unless it owns or has the right to obtain securities equivalent in kind and amount to the securities sold short, and provided that transactions in futures contracts and options are not deemed to constitute selling securities short. -------------------------------------------------------------------------------- Margin A fund may not purchase securities on margin, except to obtain such short-term credits as are necessary for the clearance of transactions, and provided that margin payments in connection with futures contracts and options on futures contracts shall not constitute purchasing securities on margin. -------------------------------------------------------------------------------- The Investment Company Act imposes certain additional restrictions upon the funds' ability to acquire securities issued by insurance companies, broker-dealers, underwriters or investment advisors, and upon transactions with affiliated persons as therein defined. It also defines and forbids the creation of cross and circular ownership. Neither the SEC nor any other agency of the federal or state government participates in or supervises the management of the funds or their investment practices or policies. TEMPORARY DEFENSIVE MEASURES For temporary defensive purposes, a fund may invest in securities that may not fit its investment objective or its stated market. During a temporary defensive period, a fund may direct its assets to the following investment vehicles: ------ 8 * interest-bearing bank accounts or certificates of deposit; * U.S. government securities and repurchase agreements collateralized by U.S. government securities; and * money market funds. To the extent a fund assumes a defensive position, it will not be pursuing its investment objective. PORTFOLIO TURNOVER Under normal conditions, the funds' annual portfolio turnover rates are not expected to exceed 100%. Because a higher turnover rate increases transaction costs and may increase taxable capital gains, the portfolio managers carefully weigh the potential benefits of short-term investing against these considerations. The funds' portfolio turnover rates are listed in the Financial Highlights tables in the prospectus. MANAGEMENT The individuals listed below serve as trustees or officers of the funds. Each trustee serves until his or her successor is duly elected and qualified or until he or she retires. Effective March 2004, mandatory retirement age for independent trustees is 73. However, the mandatory retirement age may be extended for a period not to exceed two years with the approval of the remaining independent trustees. Those listed as interested trustees are "interested" primarily by virtue of their engagement as directors and/or officers of, or ownership interest in, American Century Companies, Inc. (ACC) or its wholly owned, direct or indirect, subsidiaries, including the funds' investment advisor, American Century Investment Management, Inc. (ACIM or the advisor); the funds' principal underwriter, American Century Investment Services, Inc. (ACIS); and the funds' transfer agent, American Century Services, LLC (ACS). The other trustees (more than three-fourths of the total number) are independent; that is, they have never been employees, directors or officers of, and have no financial interest in, ACC or any of its wholly owned, direct or indirect, subsidiaries, including ACIM, ACIS and ACS. The trustees serve in this capacity for eight registered investment companies in the American Century family of funds. All persons named as officers of the funds also serve in similar capacities for the other 14 investment companies in the American Century family of funds advised by ACIM or American Century Global Investment Management, Inc. (ACGIM), a wholly owned subsidiary of ACIM, unless otherwise noted. Only officers with policy-making functions are listed. No officer is compensated for his or her service as an officer of the funds. The listed officers are interested persons of the funds and are appointed or re-appointed on an annual basis. Interested Trustee -------------------------------------------------------------------------------- JONATHAN S. THOMAS, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1963 POSITION(S) HELD WITH FUNDS: Trustee and President (since 2007) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: President and Chief Executive Officer, ACC (March 2007 to present); Chief Administrative Officer, ACC (February 2006 to February 2007); Executive Vice President, ACC (November 2005 to February 2007). Also serves as: President, Chief Executive Officer and Director, ACS; Executive Vice President, ACIM and ACGIM; Director, ACIM, ACGIM, ACIS and other ACC subsidiaries. Managing Director, MORGAN STANLEY (March 2000 to November 2005) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 105 OTHER DIRECTORSHIPS HELD BY TRUSTEE: None -------------------------------------------------------------------------------- ------ 9 Independent Trustees -------------------------------------------------------------------------------- JOHN FREIDENRICH, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1937 POSITION(S) HELD WITH FUNDS: Trustee (since 2005) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Member and Manager, REGIS MANAGEMENT COMPANY, LLC (April 2004 to present); Partner and Founder, BAY PARTNERS (Venture capital firm, 1976 to 2006) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: None -------------------------------------------------------------------------------- RONALD J. GILSON, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1946 POSITION(S) HELD WITH FUNDS: Trustee (since 1995) and Chairman of the Board (since 2005) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Charles J. Meyers Professor of Law and Business, STANFORD LAW SCHOOL (1979 to present); Marc and Eva Stern Professor of Law and Business, COLUMBIA UNIVERSITY SCHOOL OF LAW (1992 to present) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: None -------------------------------------------------------------------------------- PETER F. PERVERE, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1947 POSITION(S) HELD WITH FUNDS: Trustee (since 2007) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Retired, formerly Vice President and Chief Financial Officer, COMMERCE ONE, INC. (software and services provider) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: Director, INTRAWARE, INC. -------------------------------------------------------------------------------- MYRON S. SCHOLES, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1941 POSITION(S) HELD WITH FUNDS: Trustee (since 1980) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Chairman, PLATINUM GROVE ASSET MANAGEMENT, L.P. and a Partner, OAK HILL CAPITAL MANAGEMENT (1999 to present); Frank E. Buck Professor of Finance-Emeritus, STANFORD GRADUATE SCHOOL OF BUSINESS (1996 to present) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: Director, DIMENSIONAL FUND ADVISORS (investment advisor, 1982 to present); Director, CHICAGO MERCANTILE EXCHANGE (2000 to present) -------------------------------------------------------------------------------- JOHN B. SHOVEN, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1947 POSITION(S) HELD WITH FUNDS: Trustee (since 2002) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Professor of Economics, STANFORD UNIVERSITY (1973 to present) NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: Director, CADENCE DESIGN SYSTEMS (1992 to present) -------------------------------------------------------------------------------- JEANNE D. WOHLERS, 1665 Charleston Road, Mountain View, CA 94043 YEAR OF BIRTH: 1945 POSITION(S) HELD WITH FUNDS: Trustee (since 1984) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Retired NUMBER OF PORTFOLIOS IN FUND COMPLEX OVERSEEN BY TRUSTEE: 39 OTHER DIRECTORSHIPS HELD BY TRUSTEE: None -------------------------------------------------------------------------------- Officers -------------------------------------------------------------------------------- BARRY FINK, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1955 POSITION(S) HELD WITH FUNDS: Executive Vice President (since 2007) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Chief Operating Officer and Executive Vice President, ACC (September 2007 to present); President, ACS LLC (October 2007 to present); Managing Director, MORGAN STANLEY (2000 to 2007); Global General Counsel, MORGAN STANLEY (2000 to 2006). Also serves as: Director, ACC, ACS, ACIS and other ACC subsidiaries -------------------------------------------------------------------------------- ------ 10 MARYANNE ROEPKE, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1956 POSITION(S) HELD WITH FUNDS: Chief Compliance Officer (since 2006) and Senior Vice President (since 2000) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Chief Compliance Officer, ACIM, ACGIM and ACS (August 2006 to present); Assistant Treasurer, ACC (January 1995 to August 2006); and Treasurer and Chief Financial Officer, various American Century funds (July 2000 to August 2006). Also serves as: Senior Vice President, ACS -------------------------------------------------------------------------------- CHARLES A. ETHERINGTON, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1957 POSITION(S) HELD WITH FUNDS: General Counsel (since 2007) and Senior Vice President (since 2006) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Attorney, ACC (February 1994 to present); Vice President, ACC (November 2005 to present); General Counsel, ACC (March 2007 to present). Also serves as: General Counsel, ACIM, ACGIM, ACS, ACIS and other ACC subsidiaries; and Senior Vice President, ACIM, ACGIM and ACS -------------------------------------------------------------------------------- ROBERT LEACH, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1966 POSITION(S) HELD WITH FUNDS: Vice President, Treasurer and Chief Financial Officer (all since 2006) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Vice President, ACS (February 2000 to present); and Controller, various American Century funds (1997 to September 2006) -------------------------------------------------------------------------------- JON ZINDEL, 4500 Main Street, Kansas City, MO 64111 YEAR OF BIRTH: 1967 POSITION(S) HELD WITH FUNDS: Tax Officer (since 2000) PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS: Chief Financial Officer and Chief Accounting Officer, ACC (March 2007 to present); Vice President, ACC (October 2001 to present); Vice President, certain ACC subsidiaries (October 2001 to August 2006); Vice President, Corporate Tax, ACS (April 1998 to August 2006). Also serves as: Chief Financial Officer, Chief Accounting Officer and Senior Vice President, ACIM, ACGIM, ACS and other ACC subsidiaries; and Chief Accounting Officer and Senior Vice President, ACIS -------------------------------------------------------------------------------- THE BOARD OF TRUSTEES The Board of Trustees oversees the management of the funds and meets at least quarterly to review reports about fund operations. Although the Board of Trustees does not manage the funds, it has hired the advisor to do so. The trustees, in carrying out their fiduciary duty under the Investment Company Act of 1940, are responsible for approving new and existing management contracts with the funds' advisor. The board has the authority to manage the business of the funds on behalf of their investors, and it has all powers necessary or convenient to carry out that responsibility. Consequently, the trustees may adopt bylaws providing for the regulation and management of the affairs of the funds and may amend and repeal them to the extent that such bylaws do not reserve that right to the funds' investors. They may fill vacancies in or reduce the number of board members, and may elect and remove such officers and appoint and terminate such agents as they consider appropriate. They may appoint from their own number and establish and terminate one or more committees consisting of two or more trustees who may exercise the powers and authority of the board to the extent that the trustees determine. They may, in general, delegate such authority as they consider desirable to any officer of the funds, to any committee of the board and to any agent or employee of the funds or to any custodian, transfer or investor servicing agent, or principal underwriter. Any determination as to what is in the interests of the funds made by the trustees in good faith shall be conclusive. ------ 11 The Advisory Board The funds also have an Advisory Board. Members of the Advisory Board, if any, function like fund trustees in many respects, but do not possess voting power. Advisory Board members attend all meetings of the Board of Trustees and the independent trustees and receive any materials distributed in connection with such meetings. Advisory Board members may be considered as candidates to fill vacancies on the Board of Trustees. Committees The board has four standing committees to oversee specific functions of the funds' operations. Information about these committees appears in the table below. The trustee first named serves as chairman of the committee. -------------------------------------------------------------------------------- COMMITTEE: Audit and Compliance MEMBERS: Peter F. Pervere, Jeanne D. Wohlers, Ronald J. Gilson FUNCTION: The Audit and Compliance Committee approves the engagement of the funds' independent registered public accounting firm, recommends approval of such engagement to the independent trustees, and oversees the activities of the funds' independent registered public accounting firm. The committee receives reports from the advisor's Internal Audit Department, which is accountable to the committee. The committee also receives reporting about compliance matters affecting the funds. NUMBER OF MEETINGS HELD DURING LAST FISCAL YEAR: 5 -------------------------------------------------------------------------------- COMMITTEE: Corporate Governance MEMBERS: Ronald J. Gilson, John Freidenrich, John B. Shoven FUNCTION: The Corporate Governance Committee reviews board procedures and committee structures. It also considers and recommends individuals for nomination as trustees. The names of potential trustee candidates may be drawn from a number of sources, including recommendations from members of the board, management (in the case of interested trustees only) and shareholders. Shareholders may submit trustee nominations to the Corporate Secretary, American Century Funds, P.O. Box 410141, Kansas City, MO 64141. All such nominations will be forwarded to the committee for consideration. The committee also may recommend the creation of new committees, evaluate the membership structure of new and existing committees, consider the frequency and duration of board and committee meetings and otherwise evaluate the responsibilities, processes, resources, performance and compensation of the board. NUMBER OF MEETINGS HELD DURING LAST FISCAL YEAR: 1 -------------------------------------------------------------------------------- COMMITTEE: Portfolio MEMBERS: Myron S. Scholes, John Freidenrich FUNCTION: The Portfolio Committee reviews quarterly the investment activities and strategies used to manage fund assets. The committee regularly receives reports from portfolio managers, credit analysts and other investment personnel concerning the funds' investments. NUMBER OF MEETINGS HELD DURING LAST FISCAL YEAR: 4 -------------------------------------------------------------------------------- COMMITTEE: Quality of Service MEMBERS: John B. Shoven, Ronald J. Gilson, Peter F. Pervere FUNCTION: The Quality of Service Committee reviews the level and quality of transfer agent and administrative services provided to the funds and their shareholders. It receives and reviews reports comparing those services to those of fund competitors and seeks to improve such services where feasible and appropriate. NUMBER OF MEETINGS HELD DURING LAST FISCAL YEAR: 4 -------------------------------------------------------------------------------- Compensation of Trustees The trustees serve as trustees for eight American Century investment companies. Each trustee who is not an interested person as defined in the Investment Company Act receives compensation for service as a member of the board of all such companies based on a schedule that takes into account the number of meetings attended and the assets of the funds for which the meetings are held. These ------ 12 fees and expenses are divided among these investment companies based, in part, upon their relative net assets. Under the terms of the management agreement with the advisor, the funds are responsible for paying such fees and expenses. The following table shows the aggregate compensation paid by the funds for the periods indicated and by the investment companies served by the board to each trustee who is not an interested person as defined in the Investment Company Act. AGGREGATE TRUSTEE COMPENSATION FOR FISCAL YEAR ENDED SEPTEMBER 30, 2007 -------------------------------------------------------------------------------- TOTAL COMPENSATION TOTAL FROM THE AMERICAN COMPENSATION CENTURY FAMILY NAME OF TRUSTEE FROM THE FUNDS(1) OF FUNDS(2) -------------------------------------------------------------------------------- John Freidenrich $5,522 $116,500 -------------------------------------------------------------------------------- Ronald J. Gilson $8,768 $189,500 -------------------------------------------------------------------------------- Kathryn A. Hall(3) $5,156 $105,000 -------------------------------------------------------------------------------- Peter F. Pervere(4) $4,479 $105,161 -------------------------------------------------------------------------------- Myron S. Scholes $5,374 $111,833 -------------------------------------------------------------------------------- John B. Shoven $5,552 $117,333 -------------------------------------------------------------------------------- Jeanne D. Wohlers $5,423 $113,333 -------------------------------------------------------------------------------- (1) INCLUDES COMPENSATION PAID TO THE TRUSTEES FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2007, AND ALSO INCLUDES AMOUNTS DEFERRED AT THE ELECTION OF THE TRUSTEES UNDER THE AMERICAN CENTURY MUTUAL FUNDS' INDEPENDENT DIRECTORS' DEFERRED COMPENSATION PLAN. (2) INCLUDES COMPENSATION PAID BY THE INVESTMENT COMPANIES OF THE AMERICAN CENTURY FAMILY OF FUNDS SERVED BY THIS BOARD. THE TOTAL AMOUNT OF DEFERRED COMPENSATION INCLUDED IN THE PRECEDING TABLE IS AS FOLLOWS: MR. FREIDENRICH, $116,500; MR. GILSON, $189,500; MS. HALL, $24,250; MR. PERVERE, $23,915; MR. SCHOLES, $111,833; MR. SHOVEN, $117,333; AND MS. WOHLERS, $79,333. (3) MS. HALL RETIRED FROM THE BOARD ON DECEMBER 6, 2007. (4) MR. PERVERE JOINED THE TRUST'S ADVISORY BOARD ON DECEMBER 8, 2006 AND WAS ELECTED TRUSTEE ON JULY 27, 2007. The funds have adopted the American Century Mutual Funds' Independent Directors' Deferred Compensation Plan. Under the plan, the independent trustees may defer receipt of all or any part of the fees to be paid to them for serving as trustees of the funds. All deferred fees are credited to an account established in the name of the trustees. The amounts credited to the account then increase or decrease, as the case may be, in accordance with the performance of one or more of the American Century funds that are selected by the trustee. The account balance continues to fluctuate in accordance with the performance of the selected fund or funds until final payment of all amounts credited to the account. Trustees are allowed to change their designation of mutual funds from time to time. No deferred fees are payable until such time as a trustee resigns, retires or otherwise ceases to be a member of the Board of Trustees. Trustees may receive deferred fee account balances either in a lump sum payment or in substantially equal installment payments to be made over a period not to exceed 10 years. Upon the death of a trustee, all remaining deferred fee account balances are paid to the trustee's beneficiary or, if none, to the trustee's estate. The plan is an unfunded plan and, accordingly, the funds have no obligation to segregate assets to secure or fund the deferred fees. To date, the funds have voluntarily funded their obligations. The rights of trustees to receive their deferred fee account balances are the same as the rights of a general unsecured creditor of the funds. The plan may be terminated at any time by the administrative committee of the plan. If terminated, all deferred fee account balances will be paid in a lump sum. ------ 13 OWNERSHIP OF FUND SHARES The trustees owned shares in the funds as of December 31, 2007, as shown in the table below: NAME OF TRUSTEES -------------------------------------------------------------------------------- JONATHAN S. JOHN RONALD J. THOMAS FREIDENRICH GILSON -------------------------------------------------------------------------------- Dollar Range of Equity Securities in the Funds: Target 2010 A A A -------------------------------------------------------------------------------- Target 2015 A A A -------------------------------------------------------------------------------- Target 2020 C A A -------------------------------------------------------------------------------- Target 2025 A A A -------------------------------------------------------------------------------- Aggregate Dollar Range of Equity Securities in all Registered Investment Companies Overseen by Trustees in Family of Investment Companies E C E -------------------------------------------------------------------------------- RANGES: A-NONE, B-$1-$10,000, C-$10,001-$50,000, D-$50,001-$100,000, E-MORE THAN $100,000 NAME OF TRUSTEES -------------------------------------------------------------------------------- PETER F. MYRON S. JOHN B. JEANNE D. PERVERE SCHOLES SHOVEN WOHLERS -------------------------------------------------------------------------------- Dollar Range of Equity Securities in the Funds: Target 2010 A A A A -------------------------------------------------------------------------------- Target 2015 A A A A -------------------------------------------------------------------------------- Target 2020 A A A A -------------------------------------------------------------------------------- Target 2025 A A A A -------------------------------------------------------------------------------- Aggregate Dollar Range of Equity Securities in all Registered Investment Companies Overseen by Trustees in Family of Investment Companies A E E E -------------------------------------------------------------------------------- RANGES: A-NONE, B-$1-$10,000, C-$10,001-$50,000, D-$50,001-$100,000, E-MORE THAN $100,000 CODE OF ETHICS The funds, their investment advisor and principal underwriter have adopted codes of ethics under Rule 17j-1 of the Investment Company Act. They permit personnel subject to the codes to invest in securities, including securities that may be purchased or held by the funds, provided that they first obtain approval from the compliance department before making such investments. PROXY VOTING GUIDELINES The advisor is responsible for exercising the voting rights associated with the securities purchased and/or held by the funds. In exercising its voting obligations, the advisor is guided by general fiduciary principles. It must act prudently, solely in the interest of the funds, and for the exclusive purpose of providing benefits to them. The advisor attempts to consider all factors of its vote that could affect the value of the investment. The funds' Board of Trustees has approved the advisor's proxy voting guidelines to govern the advisor's proxy voting activities. The advisor and the board have agreed on certain significant contributors to shareholder value with respect to a number of matters that are often the subject of proxy solicitations for shareholder meetings. The proxy voting guidelines specifically address these considerations and establish a framework for the advisor's consideration of the vote that would be appropriate for the funds. In particular, the proxy voting guidelines outline principles and factors to be considered in the exercise of voting authority for proposals addressing: ------ 14 * Election of Directors * Ratification of Selection of Auditors * Equity-Based Compensation Plans * Anti-Takeover Proposals * Cumulative Voting * Staggered Boards * "Blank Check" Preferred Stock * Elimination of Preemptive Rights * Non-targeted Share Repurchase * Increase in Authorized Common Stock * "Supermajority" Voting Provisions or Super Voting Share Classes * "Fair Price" Amendments * Limiting the Right to Call Special Shareholder Meetings * Poison Pills or Shareholder Rights Plans * Golden Parachutes * Reincorporation * Confidential Voting * Opting In or Out of State Takeover Laws * Shareholder Proposals Involving Social, Moral or Ethical Matters * Anti-Greenmail Proposals * Changes to Indemnification Provisions * Non-Stock Incentive Plans * Director Tenure * Directors' Stock Options Plans * Director Share Ownership Finally, the proxy voting guidelines establish procedures for voting of proxies in cases in which the advisor may have a potential conflict of interest. Companies with which the advisor has direct business relationships could theoretically use these relationships to attempt to unduly influence the manner in which American Century votes on matters for the funds. To ensure that such a conflict of interest does not affect proxy votes cast for the funds, all discretionary (including case-by-case) voting for these companies will be voted in direct consultation with a committee of the independent trustees of the funds. In addition, to avoid any potential conflict of interest that may arise when one American Century fund owns shares of another American Century fund, the advisor will "echo vote" such shares, if possible. That is, it will vote the shares in the same proportion as the vote of all other holders of the shares. Shares of American Century "NT" funds will be voted in the same proportion as the vote of the shareholders of the corresponding American Century policy portfolio for proposals common to both funds. For example, NT Growth Fund shares will be echo voted in accordance with the votes of Growth Fund shareholders. In all other cases, the shares will be voted in direct consultation with a committee of the independent trustees of the voting fund. A copy of the advisor's proxy voting guidelines and information regarding how the advisor voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 are available on the ABOUT US page at americancentury.com. The advisor's proxy voting record also is available on the SEC's website at sec.gov. DISCLOSURE OF PORTFOLIO HOLDINGS The advisor (ACIM) has adopted policies and procedures with respect to the disclosure of fund portfolio holdings and characteristics, which are described below. ------ 15 Distribution to the Public Full portfolio holdings for each fund will be made available for distribution 30 days after the end of each calendar quarter, and will be posted on americancentury.com at approximately the same time. This disclosure is in addition to the portfolio disclosure in annual and semi-annual shareholder reports, and on Form N-Q, which disclosures are filed with the Securities and Exchange Commission within 60 days of each fiscal quarter end and also posted on americancentury.com at the time the filings are made. Top 10 holdings for each fund will be made available for distribution monthly 30 days after the end of each month, and will be posted on americancentury.com at approximately the same time. Certain portfolio characteristics determined to be sensitive and confidential will be made available for distribution monthly 30 days after the end of each month, and will be posted on americancentury.com at approximately the same time. Characteristics not deemed confidential will be available for distribution at any time. The advisor may make determinations of confidentiality on a fund-by-fund basis, and may add or delete characteristics from those considered confidential at any time. So long as portfolio holdings are disclosed in accordance with the above parameters, the advisor makes no distinction among different categories of recipients, such as individual investors, institutional investors, intermediaries that distribute the funds' shares, third-party service providers, rating and ranking organizations, and fund affiliates. Because this information is publicly available and widely disseminated, the advisor places no conditions or restrictions on, and does not monitor, its use. Nor does the advisor require special authorization for its disclosure. Accelerated Disclosure The advisor recognizes that certain parties, in addition to the advisor and its affiliates, may have legitimate needs for information about portfolio holdings and characteristics prior to the times prescribed above. Such accelerated disclosure is permitted under the circumstances described below. Ongoing Arrangements Certain parties, such as investment consultants who provide regular analysis of fund portfolios for their clients and intermediaries who pass through information to fund shareholders, may have legitimate needs for accelerated disclosure. These needs may include, for example, the preparation of reports for customers who invest in the funds, the creation of analyses of fund characteristics for intermediary or consultant clients, the reformatting of data for distribution to the intermediary's or consultant's clients, and the review of fund performance for ERISA fiduciary purposes. In such cases, accelerated disclosure is permitted if the service provider enters an appropriate non-disclosure agreement with the funds' distributor in which it agrees to treat the information confidentially until the public distribution date and represents that the information will be used only for the legitimate services provided to its clients (i.e., not for trading). Non-disclosure agreements require the approval of an attorney in the advisor's legal department. The advisor's compliance department receives quarterly reports detailing which clients received accelerated disclosure, what they received, when they received it and the purposes of such disclosure. Compliance personnel are required to confirm that an appropriate non-disclosure agreement has been obtained from each recipient identified in the reports. ------ 16 Those parties who have entered into non-disclosure agreements as of December 26, 2007 are as follows: * Aetna, Inc. * American Fidelity Assurance Co. * AUL/American United Life Insurance Company * Ameritas Life Insurance Corporation * Annuity Investors Life Insurance Company * Asset Services Company L.L.C. * Bell Globemedia Publishing * Bellwether Consulting, LLC * Bidart & Ross * Callan Associates, Inc. * Cambridge Financial Services, Inc. * Capital Cities, LLC * Charles Schwab & Co., Inc. * Cleary Gull Inc. * Commerce Bank, N.A. * Connecticut General Life Insurance Company * Consulting Services Group, LLC * CRA RogersCasey, Inc. * Defined Contribution Advisors, Inc. * EquiTrust Life Insurance Company * Evaluation Associates, LLC * Evergreen Investments * Farm Bureau Life Insurance Company * First MetLife Investors Insurance Company * Fund Evaluation Group, LLC * The Guardian Life Insurance & Annuity Company, Inc. * Hammond Associates, Inc. * Hewitt Associates LLC * ICMA Retirement Corporation * ING Life Insurance Company & Annuity Co. * Iron Capital Advisors * J.P. Morgan Retirement Plan Services LLC * Jefferson National Life Insurance Company * Jefferson Pilot Financial * Jeffrey Slocum & Associates, Inc. * Kansas City Life Insurance Company * Kmotion, Inc. * Liberty Life Insurance Company * The Lincoln National Life Insurance Company * Lipper Inc. * Manulife Financial * Massachusetts Mutual Life Insurance Company ------ 17 * Merrill Lynch * MetLife Investors Insurance Company * MetLife Investors Insurance Company of California * Midland National Life Insurance Company * Minnesota Life Insurance Company * Morgan Keegan & Co., Inc. * Morgan Stanley & Co., Incorporated * Morningstar Associates LLC * Morningstar Investment Services, Inc. * National Life Insurance Company * Nationwide Financial * New England Pension Consultants * Northwestern Mutual Life Insurance Co. * NT Global Advisors, Inc. * NYLIFE Distributors, LLC * Principal Life Insurance Company * Prudential Financial * Rocaton Investment Advisors, LLC * S&P Financial Communications * Scudder Distributors, Inc. * Security Benefit Life Insurance Co. * Smith Barney * SunTrust Bank * Symetra Life Insurance Company * Trusco Capital Management * Union Bank of California, N.A. * The Union Central Life Insurance Company * VALIC Financial Advisors * VALIC Retirement Services Company * Vestek Systems, Inc. * Wachovia Bank, N.A. * Wells Fargo Bank, N.A. Once a party has executed a non-disclosure agreement, it may receive any or all of the following data for funds in which its clients have investments or are actively considering investment: (1) Full holdings quarterly as soon as reasonably available; (2) Full holdings monthly as soon as reasonably available; (3) Top 10 holdings monthly as soon as reasonably available; and (4) Portfolio characteristics monthly as soon as reasonably available. The types, frequency and timing of disclosure to such parties vary. In most situations, the information provided pursuant to a non-disclosure agreement is limited to certain portfolio characteristics and/or top 10 holdings, which information is provided on a monthly basis. In limited situations, and when approved by a member of the legal department and responsible chief investment officer, full holdings may be provided. ------ 18 Single Event Requests In certain circumstances, the advisor may provide fund holding information on an accelerated basis outside of an ongoing arrangement with manager-level or higher authorization. For example, from time to time the advisor may receive requests for proposals (RFPs) from consultants or potential clients that request information about a fund's holdings on an accelerated basis. As long as such requests are on a one-time basis, and do not result in continued receipt of data, such information may be provided in the RFP as of the most recent month end regardless of lag time. Such information will be provided with a confidentiality legend and only in cases where the advisor has reason to believe that the data will be used only for legitimate purposes and not for trading. In addition, the advisor occasionally may work with a transition manager to move a large account into or out of a fund. To reduce the impact to the fund, such transactions may be conducted on an in-kind basis using shares of portfolio securities rather than cash. The advisor may provide accelerated holdings disclosure to the transition manager with little or no lag time to facilitate such transactions, but only if the transition manager enters into an appropriate non-disclosure agreement. Service Providers Various service providers to the funds and the funds' advisor must have access to some or all of the funds' portfolio holdings information on an accelerated basis from time to time in the ordinary course of providing services to the funds. These service providers include the funds' custodian (daily, with no lag), auditors (as needed) and brokers involved in the execution of fund trades (as needed). Additional information about these service providers and their relationships with the funds and the advisor are provided elsewhere in this statement of additional information. Additional Safeguards The advisor's policies and procedures include a number of safeguards designed to control disclosure of portfolio holdings and characteristics so that such disclosure is consistent with the best interests of fund shareholders. First, the frequency with which this information is disclosed to the public, and the length of time between the date of the information and the date on which the information is disclosed, are selected to minimize the possibility of a third party improperly benefiting from fund investment decisions to the detriment of fund shareholders. Second, distribution of portfolio holdings information, including compliance with the advisor's policies and the resolution of any potential conflicts that may arise, is monitored quarterly. Finally, the funds' Board of Trustees exercises oversight of disclosure of the funds' portfolio securities. The board has received and reviewed a summary of the advisor's policy and is informed on a quarterly basis of any changes to or violations of such policy detected during the prior quarter. Neither the advisor nor the funds receive any compensation from any party for the distribution of portfolio holdings information. The advisor reserves the right to change its policies and procedures with respect to the distribution of portfolio holdings information at any time. There is no guarantee that these policies and procedures will protect the funds from the potential misuse of holdings information by individuals or firms in possession of such information. ------ 19 THE FUNDS' PRINCIPAL SHAREHOLDERS As of January 2, 2008, the following shareholders, beneficial or of record, owned more than 5% of the outstanding shares of any class of a fund. PERCENTAGE OF PERCENTAGE OF OUTSTANDING OUTSTANDING FUND/ SHARES OWNED SHARES OWNED CLASS SHAREHOLDER OF RECORD BENEFICIALLY(1) -------------------------------------------------------------------------------- Target 2010 -------------------------------------------------------------------------------- Investor Class Charles Schwab & Co. Inc. 15% 0% San Francisco, CA National Financial 10% 0% Services Corp. New York, NY -------------------------------------------------------------------------------- Advisor Class Charles Schwab & Co. Inc. 74% 0% San Francisco, CA -------------------------------------------------------------------------------- Target 2015 -------------------------------------------------------------------------------- Investor Class Charles Schwab & Co. Inc. 28% 0% San Francisco, CA National Financial 12% 0% Services Corp. New York, NY -------------------------------------------------------------------------------- Advisor Class Charles Schwab & Co. Inc. 84% 0% San Francisco, CA Counsel Trust Co. 6% 0% FBO Brown & Dunn PC 401K Plan Pittsburgh, PA National Financial 5% 0% Services LLC New York, NY -------------------------------------------------------------------------------- Target 2020 -------------------------------------------------------------------------------- Investor Class Charles Schwab & Co. Inc. 15% 0% San Francisco, CA National Financial 14% 0% Services Corp. New York, NY SEI Private Trust Company 8% 0% c/o State Street Bank Oaks, PA -------------------------------------------------------------------------------- Advisor Class Charles Schwab & Co. Inc. 63% 0% San Francisco, CA MLPF&S 13% 0% Jacksonville, FL -------------------------------------------------------------------------------- (1) IF SHARES ARE REGISTERED IN AN INDIVIDUAL'S NAME OR IN THE NAME OF AN INTERMEDIARY FOR THE BENEFIT OF A NAMED INDIVIDUAL, WE REPORT THOSE SHARES AS BEING BENEFICIALLY OWNED. OTHERWISE, AMERICAN CENTURY HAS NO INFORMATION CONCERNING BENEFICIAL OWNERSHIP OF FUND SHARES. ------ 20 PERCENTAGE OF PERCENTAGE OF OUTSTANDING OUTSTANDING FUND/ SHARES OWNED SHARES OWNED CLASS SHAREHOLDER OF RECORD BENEFICIALLY(1) -------------------------------------------------------------------------------- Target 2025 -------------------------------------------------------------------------------- Investor Class Charles Schwab & Co. Inc. 20% 0% San Francisco, CA National Financial 16% 0% Services Corp. New York, NY First National Bank in Pratt 6% 0% Pratt, KS -------------------------------------------------------------------------------- Advisor Class Charles Schwab & Co. Inc. 44% 0% San Francisco CA National Financial 34% 0% Services LLC New York, NY MG Trust Company 7% 0% Agent for Frontier Trust Co TR Pinehurst Surgical Clinic PA Reti Fargo, ND Wilmington Trust Comp TTEE 5% 0% FBO Fairmount Minerals Ltd 401K Plan Wilmington, DE -------------------------------------------------------------------------------- (1) IF SHARES ARE REGISTERED IN AN INDIVIDUAL'S NAME OR IN THE NAME OF AN INTERMEDIARY FOR THE BENEFIT OF A NAMED INDIVIDUAL, WE REPORT THOSE SHARES AS BEING BENEFICIALLY OWNED. OTHERWISE, AMERICAN CENTURY HAS NO INFORMATION CONCERNING BENEFICIAL OWNERSHIP OF FUND SHARES. The funds are unaware of any other shareholders, beneficial or of record, who own more than 5% of any class of a fund's outstanding shares. The funds are unaware of any shareholders, beneficial or of record, who own more than 25% of the voting securities of the trust. A shareholder owning of record or beneficially more than 25% of the trust's outstanding shares may be considered a controlling person. The vote of any such person could have a more significant effect on matters presented at a shareholders' meeting than votes of other shareholders. As of January 2, 2008, the officers and trustees of the funds, as a group, owned less than 1% of any class of a fund's outstanding shares. SERVICE PROVIDERS The funds have no employees. To conduct the funds' day-to-day activities, the trust has hired a number of service providers. Each service provider has a specific function to fill on behalf of the funds that is described below. ACIM, ACS and ACIS are wholly owned, directly or indirectly, by ACC. James E. Stowers, Jr. controls ACC by virtue of his ownership of a majority of its voting stock. INVESTMENT ADVISOR American Century Investment Management, Inc. (ACIM) serves as the investment advisor for each of the funds. A description of the responsibilities of the advisor appears in the prospectus under the heading MANAGEMENT. ------ 21 For the services provided to the funds, the advisor receives a unified management fee based on a percentage of the net assets of a fund. For more information about the unified management fee, see THE INVESTMENT ADVISOR under the heading MANAGEMENT in the funds' prospectus. The annual rate at which this fee is assessed is determined daily in a multi-step process. First, each of the trust's funds is categorized according to the broad asset class in which it invests (e.g., money market, bond or equity), and the assets of the funds in each category are totaled (Fund Category Assets). Second, the assets are totaled for certain other accounts managed by the advisor (Other Account Category Assets). To be included, these accounts must have the same management team and investment objective as a fund in the same category with the same Board of Trustees as the trust. Together, the Fund Category Assets and the Other Account Category Assets comprise the "Investment Category Assets." The Investment Category Fee Rate is then calculated by applying a fund's Investment Category Fee Schedule to the Investment Category Assets and dividing the result by the Investment Category Assets. Finally, a separate Complex Fee Schedule is applied to the assets of all of the funds in the American Century family of funds (the Complex Assets), and the Complex Fee Rate is calculated based on the resulting total. The Investment Category Fee Rate and the Complex Fee Rate are then added to determine the Management Fee Rate payable by a class of the fund to the advisor. For purposes of determining the assets that comprise the Fund Category Assets, Other Account Category Assets and Complex Assets, the assets of registered investment companies managed by the advisor that invest primarily in the shares of other registered investment companies shall not be included. The schedules by which the unified management fee is determined are shown below. INVESTMENT CATEGORY FEE SCHEDULE FOR TARGET 2010, TARGET 2015, TARGET 2020 AND TARGET 2025 -------------------------------------------------------------------------------- CATEGORY ASSETS FEE RATE -------------------------------------------------------------------------------- First $1 billion 0.3600% -------------------------------------------------------------------------------- Next $1 billion 0.3080% -------------------------------------------------------------------------------- Next $3 billion 0.2780% -------------------------------------------------------------------------------- Next $5 billion 0.2580% -------------------------------------------------------------------------------- Next $15 billion 0.2450% -------------------------------------------------------------------------------- Next $25 billion 0.2430% -------------------------------------------------------------------------------- Thereafter 0.2425% -------------------------------------------------------------------------------- The Complex Fee is determined according to the schedule below. COMPLEX FEE SCHEDULE -------------------------------------------------------------------------------- FEE RATE INVESTOR AND COMPLEX ASSETS ADVISOR CLASSES -------------------------------------------------------------------------------- First $2.5 billion 0.3100% -------------------------------------------------------------------------------- Next $7.5 billion 0.3000% -------------------------------------------------------------------------------- Next $15 billion 0.2985% -------------------------------------------------------------------------------- Next $25 billion 0.2970% -------------------------------------------------------------------------------- Next $25 billion 0.2870% -------------------------------------------------------------------------------- Next $25 billion 0.2800% -------------------------------------------------------------------------------- Next $25 billion 0.2700% -------------------------------------------------------------------------------- Next $25 billion 0.2650% -------------------------------------------------------------------------------- Next $25 billion 0.2600% -------------------------------------------------------------------------------- Next $25 billion 0.2550% -------------------------------------------------------------------------------- Thereafter 0.2500% -------------------------------------------------------------------------------- ------ 22 On each calendar day, each class of each fund accrues a management fee that is equal to the class's Management Fee Rate times the net assets of the class divided by 365 (366 in leap years). On the first business day of each month, the funds pay a management fee to the advisor for the previous month. The fee for the previous month is the sum of the calculated daily fees for each class of a fund during the previous month. The management agreement between the trust and the advisor shall continue in effect until the earlier of the expiration of two years from the date of its execution or until the first meeting of shareholders following such execution and for as long thereafter as its continuance is specifically approved at least annually by * the funds' Board of Trustees, or a majority of outstanding shareholder votes (as defined in the Investment Company Act) and * the vote of a majority of the trustees of the funds who are not parties to the agreement or interested persons of the advisor, cast in person at a meeting called for the purpose of voting on such approval. The management agreement states that the funds' Board of Trustees or a majority of outstanding shareholder votes may terminate the management agreement at any time without payment of any penalty on 60 days' written notice to the advisor. The management agreement shall be automatically terminated if it is assigned. The management agreement provides that the advisor shall not be liable to the funds or their shareholders for anything other than willful misfeasance, bad faith, gross negligence or reckless disregard of its obligations and duties. The management agreement also provides that the advisor and its officers, trustees and employees may engage in other business, devote time and attention to any other business whether of a similar or dissimilar nature, and render services to others. Certain investments may be appropriate for the funds and also for other clients advised by the advisor. Investment decisions for the funds and other clients are made with a view to achieving their respective investment objectives after consideration of such factors as their current holdings, availability of cash for investment and the size of their investment generally. A particular security may be bought or sold for only one client or fund, or in different amounts and at different times for more than one but less than all clients or funds. A particular security may be bought for one client or fund on the same day it is sold for another client or fund, and a client or fund may hold a short position in a particular security at the same time another client or fund holds a long position. In addition, purchases or sales of the same security may be made for two or more clients or funds on the same date. The advisor has adopted procedures designed to ensure such transactions will be allocated among clients and funds in a manner believed by the advisor to be equitable to each. In some cases this procedure could have an adverse effect on the price or amount of the securities purchased or sold by a fund. The advisor may aggregate purchase and sale orders of the funds with purchase and sale orders of its other clients when the advisor believes that such aggregation provides the best execution for the funds. The Board of Trustees has approved the policy of the advisor with respect to the aggregation of portfolio transactions. Fixed-income securities transactions are not executed through a centralized trading desk. Instead, portfolio teams are responsible for executing trades with broker-dealers in a predominantly dealer marketplace. Trade allocation decisions are made by the portfolio manager at the time of trade execution and orders entered on the fixed-income order management system. The advisor will not aggregate portfolio transactions of the funds unless it believes such aggregation is consistent with its duty to seek best execution on behalf of the funds and the terms of the management agreement. The advisor receives no additional compensation or remuneration as a result of such aggregation. ------ 23 Unified management fees incurred by each fund for the fiscal periods ended September 30, 2007, 2006, and 2005, are indicated in the following table. UNIFIED MANAGEMENT FEES FUND 2007 2006 2005 -------------------------------------------------------------------------------- Target 2010 $1,252,898 $1,224,150 $1,236,508 -------------------------------------------------------------------------------- Target 2015 $1,181,690 $1,115,157 $1,006,096 -------------------------------------------------------------------------------- Target 2020 $1,121,822 $1,013,162 $1,040,418 -------------------------------------------------------------------------------- Target 2025 $1,690,712 $1,505,374 $731,409 -------------------------------------------------------------------------------- PORTFOLIO MANAGERS Other Accounts Managed The portfolio managers also may be responsible for the day-to-day management of other accounts, as indicated by the following table. None of these accounts has an advisory fee based on the performance of the account. OTHER ACCOUNTS MANAGED (AS OF SEPTEMBER 30, 2007) REGISTERED OTHER ACCOUNTS INVESTMENT (E.G., SEPARATE COMPANIES ACCOUNTS AND (E.G., OTHER OTHER POOLED CORPORATE AMERICAN INVESTMENT ACCOUNTS, CENTURY FUNDS VEHICLES (E.G., INCLUDING AND AMERICAN COMMINGLED INCUBATION CENTURY - TRUSTS AND STRATEGIES AND SUBADVISED 529 EDUCATION CORPORATE FUNDS) SAVINGS PLANS) MONEY) --------------------------------------------------------------------------------------- Target 2010 Fund --------------------------------------------------------------------------------------- Robert V. Number of Other 16 1 0 Gahagan Accounts Managed -------------------------------------------------------------------------- Assets in Other $6,848,418,612 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Seth B. Number of Other 15 1 0 Plunkett Accounts Managed -------------------------------------------------------------------------- Assets in Other $5,591,249,200 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Target 2015 Fund --------------------------------------------------------------------------------------- Robert V. Number of Other 16 1 0 Gahagan Accounts Managed -------------------------------------------------------------------------- Assets in Other $6,869,078,464 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Seth B. Number of Other 15 1 0 Plunkett Accounts Managed -------------------------------------------------------------------------- Assets in Other $5,611,909,052 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Target 2020 Fund --------------------------------------------------------------------------------------- Robert V. Number of Other 16 1 0 Gahagan Accounts Managed -------------------------------------------------------------------------- Assets in Other $6,895,482,995 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Seth B. Number of Other 15 1 0 Plunkett Accounts Managed -------------------------------------------------------------------------- Assets in Other $5,638,313,584 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- ------ 24 OTHER ACCOUNTS MANAGED (AS OF SEPTEMBER 30, 2007) REGISTERED OTHER ACCOUNTS INVESTMENT (E.G., SEPARATE COMPANIES ACCOUNTS AND (E.G., OTHER OTHER POOLED CORPORATE AMERICAN INVESTMENT ACCOUNTS, CENTURY FUNDS VEHICLES (E.G., INCLUDING AND AMERICAN COMMINGLED INCUBATION CENTURY - TRUSTS AND STRATEGIES AND SUBADVISED 529 EDUCATION CORPORATE FUNDS) SAVINGS PLANS) MONEY) --------------------------------------------------------------------------------------- Target 2025 Fund --------------------------------------------------------------------------------------- Robert V. Number of Other 16 1 0 Gahagan Accounts Managed -------------------------------------------------------------------------- Assets in Other $6,850,687,427 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Seth B. Number of Other 15 1 0 Plunkett Accounts Managed -------------------------------------------------------------------------- Assets in Other $5,593,518,015 $51,911,186 N/A Accounts Managed --------------------------------------------------------------------------------------- Potential Conflicts of Interest Certain conflicts of interest may arise in connection with the management of multiple portfolios. Potential conflicts include, for example, conflicts among investment strategies and conflicts in the allocation of investment opportunities. American Century has adopted policies and procedures that are designed to minimize the effects of these conflicts. Responsibility for managing American Century client portfolios is organized according to investment discipline. Investment disciplines include, for example, core equity, small- and mid-cap growth, large-cap growth, value, international, fixed income, asset allocation, and sector funds. Within each discipline are one or more portfolio teams responsible for managing specific client portfolios. Generally, client portfolios with similar strategies are managed by the same team using the same objective, approach, and philosophy. Accordingly, portfolio holdings, position sizes, and industry and sector exposures tend to be similar across similar portfolios, which minimizes the potential for conflicts of interest. For each investment strategy, one portfolio is generally designated as the "policy portfolio." Other portfolios with similar investment objectives, guidelines and restrictions, if any, are referred to as "tracking portfolios." When managing policy and tracking portfolios, a portfolio team typically purchases and sells securities across all portfolios that the team manages. American Century's trading systems include various order entry programs that assist in the management of multiple portfolios, such as the ability to purchase or sell the same relative amount of one security across several funds. In some cases a tracking portfolio may have additional restrictions or limitations that cause it to be managed separately from the policy portfolio. Portfolio managers make purchase and sale decisions for such portfolios alongside the policy portfolio to the extent the overlap is appropriate, and separately, if the overlap is not. American Century may aggregate orders to purchase or sell the same security for multiple portfolios when it believes such aggregation is consistent with its duty to seek best execution on behalf of its clients. Orders of certain client portfolios may, by investment restriction or otherwise, be determined not available for aggregation. American Century has adopted policies and procedures to minimize the risk that a client portfolio could be systematically advantaged or disadvantaged in connection with the aggregation of orders. To the extent equity trades are aggregated, shares purchased or sold are generally allocated to the participating portfolios pro rata based on order size. Because initial public offerings (IPOs) are usually available in limited supply and in amounts too small to permit across-the-board pro rata allocations, American Century has adopted special procedures designed to promote ------ 25 a fair and equitable allocation of IPO securities among clients over time. Fixed income securities transactions are not executed through a centralized trading desk. Instead, portfolio teams are responsible for executing trades with broker-dealers in a predominantly dealer marketplace. Trade allocation decisions are made by the portfolio manager at the time of trade execution and orders entered on the fixed income order management system. Finally, investment of American Century's corporate assets in proprietary accounts may raise additional conflicts of interest. To mitigate these potential conflicts of interest, American Century has adopted policies and procedures intended to provide that trading in proprietary accounts is performed in a manner that does not give improper advantage to American Century to the detriment of client portfolios. Compensation American Century portfolio manager compensation is structured to align the interests of portfolio managers with those of the shareholders whose assets they manage. As of the fiscal year ended September 30, 2007, it included the components described below, each of which is determined with reference to a number of factors such as overall performance, market competition, and internal equity. Compensation is not directly tied to the value of assets held in client portfolios. Base Salary Portfolio managers receive base pay in the form of a fixed annual salary. Bonus A significant portion of portfolio manager compensation takes the form of an annual incentive bonus tied to performance. Bonus payments may take into account a number of factors. One factor is fund investment performance. For policy portfolios, such as the funds described in this statement of additional information, investment performance is measured by a combination of one- and three-year pre-tax performance relative to a pre-established, internally-customized peer group and/or market benchmark. Custom peer groups are constructed using all the funds in appropriate Lipper or Morningstar categories as a starting point. Funds are then eliminated from the peer group based on a standardized methodology designed to result in a final peer group that more closely represents the fund's true peers based on internal investment mandates and that is more stable (i.e., has less peer turnover) over the long-term. In cases where a portfolio manager has responsibility for more than one policy portfolio, the performance of each is assigned a percentage weight commensurate with the portfolio manager's level of responsibility. With regard to tracking portfolios, investment performance may be measured in a number of ways. The performance of the tracking portfolio may be measured against a customized peer group and/or market benchmark as described above for policy portfolios. Alternatively, the tracking portfolio may be evaluated relative to the performance of its policy portfolio, with the goal of matching the policy portfolio's performance as closely as possible. In some cases, the performance of a tracking portfolio is not separately considered; rather, the performance of the policy portfolio is the key metric. A second factor in the bonus calculation relates to the performance of all American Century funds managed according to one of the following investment styles: U.S. growth, U.S. value, international and fixed-income. Performance is measured for each product individually as described above and then combined to create an overall composite for the product group. These composites may measure one-year performance (equal weighted) or a combination of one- and three-year performance ------ 26 (equal or asset weighted) depending on the portfolio manager's responsibilities and products managed. This feature is designed to encourage effective teamwork among portfolio management teams in achieving long-term investment success for similarly styled portfolios. A portion of some portfolio managers' bonuses may be tied to individual performance goals, such as research projects and the development of new products. Restricted Stock Plans Portfolio managers are eligible for grants of restricted stock of ACC. These grants are discretionary, and eligibility and availability can vary from year to year. The size of an individual's grant is determined by individual and product performance as well as other product-specific considerations. Grants can appreciate/depreciate in value based on the performance of the ACC stock during the restriction period (generally three years). Deferred Compensation Plans Portfolio managers are eligible for grants of deferred compensation. These grants are used in very limited situations, primarily for retention purposes. Grants are fixed and can appreciate/depreciate in value based on the performance of the American Century mutual funds in which the portfolio manager chooses to invest them. Ownership of Securities As of September 30, 2007, the fund's most recent fiscal year end, the funds' portfolio managers did not beneficially own shares of the funds. These portfolio managers serve on an investment team that oversees a number of funds in the same broad investment category and are not expected to invest in each such fund. TRANSFER AGENT AND ADMINISTRATOR American Century Services, LLC (ACS), 4500 Main Street, Kansas City, Missouri 64111, serves as transfer agent and dividend-paying agent for the funds. It provides physical facilities, computer hardware and software, and personnel for the day-to-day administration of the funds and the advisor. The advisor pays ACS's costs for serving as transfer agent and dividend-paying agent for the funds out of the advisor's unified management fee. For a description of this fee and the terms of its payment, see the above discussion under the caption INVESTMENT ADVISOR. From time to time, special services may be offered to shareholders who maintain higher share balances in our family of funds. These services may include the waiver of minimum investment requirements, expedited confirmation of shareholder transactions, newsletters and a team of personal representatives. Any expenses associated with these special services will be paid by the advisor. DISTRIBUTOR The funds' shares are distributed by American Century Investment Services, Inc. (ACIS), a registered broker-dealer. The distributor is a wholly owned subsidiary of ACC and its principal business address is 4500 Main Street, Kansas City, Missouri 64111. ------ 27 The distributor is the principal underwriter of the funds' shares. The distributor makes a continuous, best-efforts underwriting of the funds' shares. This means the distributor has no liability for unsold shares. The advisor pays ACIS's costs for serving as principal underwriter of the funds' shares out of the advisor's unified management fee. For a description of this fee and the terms of its payment, see the above discussion under the caption INVESTMENT ADVISOR. ACIS does not earn commissions for distributing the funds' shares. Certain financial intermediaries unaffiliated with the distributor or the funds may perform various administrative and shareholder services for their clients who are invested in the funds. These services may include assisting with fund purchases, redemptions and exchanges, distributing information about the funds and their performance, preparing and distributing client account statements, and other administrative and shareholder services that would otherwise be provided by the distributor or its affiliates. The distributor may pay fees out of its own resources to such financial intermediaries for providing these services. CUSTODIAN BANKS JPMorgan Chase Bank, 4 Metro Tech Center, Brooklyn, New York, 11245, and Commerce Bank, N.A., 1000 Walnut, Kansas City, Missouri 64105, each serves as custodian of the funds' assets. The custodians take no part in determining the investment policies of the funds or in deciding which securities are purchased or sold by the funds. The funds, however, may invest in certain obligations of the custodians and may purchase or sell certain securities from or to the custodians. JPMorgan Chase Bank is paid based on the monthly average of assets held in custody plus a transaction fee. INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM PricewaterhouseCoopers LLP serves as the independent registered public accounting firm of the funds. The address of PricewaterhouseCoopers LLP is 1055 Broadway, 10th Floor, Kansas City, Missouri 64105. As the independent registered public accounting firm of the funds, PricewaterhouseCoopers LLP provides services including: (1) auditing the annual financial statements for each fund, and (2) assisting and consulting in connection with SEC filings. BROKERAGE ALLOCATION The funds generally purchase and sell debt securities through principal transactions, meaning the funds normally purchase securities on a net basis directly from the issuer or a primary market-maker acting as principal for the securities. The funds do not pay brokerage commissions on these transactions, although the purchase price for debt securities usually includes an undisclosed compensation. Purchases of securities from underwriters typically include a commission or concession paid by the issuer to the underwriter, and purchases from dealers serving as market-makers typically include a dealer's mark-up (i.e., a spread between the bid and asked prices). During the fiscal years ended September 30, 2007, 2006 and 2005, the funds did not pay any brokerage commissions. REGULAR BROKER-DEALERS As of the end of the most recently completed fiscal year, the funds owned no securities of its regular brokers or dealers (as defined by Rule 10b-1 under the Investment Company Act of 1940) or of their parent companies. ------ 28 INFORMATION ABOUT FUND SHARES The Declaration of Trust permits the Board of Trustees to issue an unlimited number of full and fractional shares of beneficial interest without par value, which may be issued in a series (or funds). Each of the funds named on the front of this statement of additional information is a series of shares issued by the trust. In addition, each series (or fund) may be divided into separate classes. See MULTIPLE CLASS STRUCTURE, which follows. Additional funds and classes may be added without a shareholder vote. Each fund votes separately on matters affecting that fund exclusively. Voting rights are not cumulative, so that investors holding more than 50% of the trust's (all funds') outstanding shares may be able to elect a Board of Trustees. The trust undertakes dollar-based voting, meaning that the number of votes a shareholder is entitled to is based upon the dollar amount of the shareholder's investment. The election of trustees is determined by the votes received from all the trust's shareholders without regard to whether a majority of shares of any one fund voted in favor of a particular nominee or all nominees as a group. Each shareholder has rights to dividends and distributions declared by the fund he or she owns and to the net assets of such fund upon its liquidation or dissolution proportionate to his or her share ownership interest in the fund. Shares of each fund have equal voting rights, although each fund votes separately on matters affecting that fund exclusively. The trust shall continue unless terminated by (1) approval of at least two-thirds of the shares of each fund entitled to vote or (2) the trustees by written notice to shareholders of each fund. Any fund may be terminated by (1) approval of at least two-thirds of the shares of that fund or (2) the trustees by written notice to shareholders of that fund. Upon termination of the trust or a fund, as the case may be, the trust shall pay or otherwise provide for all charges, taxes, expenses and liabilities belonging to the trust or the fund. Thereafter, the trust shall reduce the remaining assets belonging to each fund (or the particular fund) to cash, shares of other securities or any combination thereof, and distribute the proceeds belonging to each fund (or the particular fund) to the shareholders of that fund ratably according to the number of shares of that fund held by each shareholder on the termination date. Shareholders of a Massachusetts business trust could, under certain circumstances, be held personally liable for its obligations. However, the Declaration of Trust contains an express disclaimer of shareholder liability for acts or obligations of the trust. The Declaration of Trust also provides for indemnification and reimbursement of expenses of any shareholder held personally liable for obligations of the trust. The Declaration of Trust provides that the trust will, upon request, assume the defense of any claim made against any shareholder for any act or obligation of the trust and satisfy any judgment thereon. The Declaration of Trust further provides that the trust may maintain appropriate insurance (for example, fidelity, bonding, and errors and omissions insurance) for the protection of the trust, its shareholders, trustees, officers, employees and agents to cover possible tort and other liabilities. Thus, the risk of a shareholder incurring financial loss as a result of shareholder liability is limited to circumstances in which both inadequate insurance exists and the trust is unable to meet its obligations. The assets belonging to each series are held separately by the custodian and the shares of each series represent a beneficial interest in the principal, earnings and profit (or losses) of investments and other assets held for each series. Your rights as a shareholder are the same for all series of securities unless otherwise stated. Within their respective fund or class, all shares have equal redemption rights. Each share, when issued, is fully paid and non-assessable. ------ 29 FUND LIQUIDATIONS Near the end of each fund's target maturity year, its investments will be sold or allowed to mature; its liabilities will be discharged or a provision will be made for their discharge; and its accounts will be closed. A shareholder may choose to redeem his or her shares in one of the following ways: (1) by receiving redemption proceeds or (2) by exchanging shares for shares of another American Century fund. The estimated expenses of terminating and liquidating a fund's portfolio securities will be accrued ratably over its target maturity year. These expenses, which are charged to income (as are all expenses), are not expected to exceed significantly the ordinary annual expenses incurred by a fund and, therefore, should have little or no effect on the maturity value of that fund. MULTIPLE CLASS STRUCTURE The Board of Trustees has adopted a multiple class plan pursuant to Rule 18f-3 adopted by the SEC. The plan is described in the funds' prospectus. Pursuant to such plan, the funds may issue up to two classes of shares: an Investor Class and an Advisor Class. The Investor Class is made available to investors directly from American Century and/or through some financial intermediaries. Investor Class shares charge a single unified management fee, without any load or commission payable to American Century. Additional information regarding eligibility for Investor Class shares may be found in the funds' prospectus. The Advisor Class is made available through financial intermediaries, for purchase by individual investors who receive advisory and personal services from the intermediary. The unified management fee for the Advisor Class is the same as for the Investor Class, but the Advisor Class shares are subject to a Master Distribution and Individual Shareholder Services Plan (the Advisor Class Plan) described below. The Advisor Class Plan has been adopted by the funds' Board of Trustees in accordance with Rule 12b-1 adopted by the SEC under the Investment Company Act. Rule 12b-1 Rule 12b-1 permits an investment company to pay expenses associated with the distribution of its shares in accordance with a plan adopted by its Board of Trustees and approved by its shareholders. Pursuant to such rule, the Board of Trustees of the funds' Advisor Class have approved and entered into the Advisor Class Plan. The plan is described below. In adopting the plan, the Board of Trustees (including a majority of trustees who are not interested persons of the funds [as defined in the Investment Company Act], hereafter referred to as the independent trustees) determined that there was a reasonable likelihood that the plan would benefit the funds and the shareholders of the affected class. Some of the anticipated benefits include improved name recognition of the funds generally; and growing assets in existing funds, which helps retain and attract investment management talent, provides a better environment for improving fund performance, and can lower the total expense ratio for funds with stepped-fee schedules. Pursuant to Rule 12b-1, information about revenues and expenses under the plan is presented to the Board of Trustees quarterly for its consideration in continuing the plan. Continuance of the plan must be approved by the Board of Trustees, including a majority of the independent trustees, annually. The plan may be amended by a vote of the Board of Trustees, including a majority of the independent trustees, except that the plan may not be amended to materially increase the amount to be spent for distribution without majority approval of the shareholders of the affected class. The plan terminates automatically in the event of an assignment and may be terminated upon a vote of a majority of the independent trustees or by vote of a majority of outstanding shareholder votes of the affected class. ------ 30 All fees paid under the plan will be made in accordance with Section 2830 of the Conduct Rules of the Financial Industry Regulatory Authority (FINRA). Advisor Class Plan As described in the prospectus, the funds' Advisor Class shares are made available to participants in employer-sponsored retirement plans and to persons purchasing through broker-dealers, banks, insurance companies and other financial intermediaries that provide various administrative, shareholder and distribution services. The funds' distributor enters into contracts with various banks, broker-dealers, insurance companies and other financial intermediaries, with respect to the sale of the funds' shares and/or the use of the funds' shares in various investment products or in connection with various financial services. Certain recordkeeping and administrative services that are provided by the funds' transfer agent for the Investor Class shareholders may be performed by a plan sponsor (or its agents) or by a financial intermediary for shareholders in the Advisor Class. In addition to such services, the financial intermediaries provide various distribution services. To make the funds' shares available through such plans and financial intermediaries, and to compensate them for these services, the funds' Board of Trustees has adopted the Advisor Class Plan. Prior to December 3, 2007, the Advisor Class Plan required the Advisor Class to pay 0.50% annually of the aggregate average daily net assets of the funds' Advisor Class shares, 0.25% for certain ongoing shareholder and administrative services (as described below) and 0.25% for distribution services, including past distribution services (as described below). However, at shareholder meetings on July 27, 2007 and August 24, 2007, the Advisor Class shareholders approved a decrease in the fee required by the Advisor Class Plan of 0.25%, and a corresponding increase in the Advisor Class management fee. This change was made because the administrative services portion of the 12b-1 fee does not need to be made out of the 12b-1 plan, but may properly be made out of the funds' unified fee, consistent with the other classes of the funds. This change resulted in no difference in the overall fee for the Advisor Class, but will lower the amount of the 12b-1 fee charged under the Advisor Class Plan from and after December 3, 2007. After that date, pursuant to the Advisor Class Plan, the Advisor Class pays the funds' distributor 0.25% annually of the aggregate average daily net assets of the funds' Advisor Class shares, which is paid for certain ongoing individual shareholder services (as described below) and for distribution services, including past distribution services (as described below). This payment is fixed at 0.25%, and is not based on expenses incurred by the distributor. During the fiscal year ended September 30, 2007, the aggregate amount of fees paid under the Advisor Class Plan was: Target 2010 $35,522 Target 2015 $28,982 Target 2020 $55,280 Target 2025 $128,840 The distributor then makes these payments to the financial intermediaries (including underwriters and broker-dealers, who may use some of the proceeds to compensate sales personnel) who offer the Advisor Class shares in payment for provision of the services described below. No portion of these payments is used by the distributor to pay for advertising, printing costs or interest expenses. ------ 31 Prior to December 3, 2007, 0.25% of the fee charged pursuant to the Advisor Class Plan was for a variety of shareholder services, including, but not limited to: (a) receiving, aggregating and processing purchase, exchange and redemption requests from beneficial owners (including contract owners of insurance products that utilize the funds as underlying investment media) of shares and placing purchase, exchange and redemption orders with the funds' distributor; (b) providing shareholders with a service that invests the assets of their accounts in shares pursuant to specific or pre-authorized instructions; (c) processing dividend payments from a fund on behalf of shareholders and assisting shareholders in changing dividend options, account designations and addresses; (d) providing and maintaining elective services such as check writing and wire transfer services; (e) acting as shareholder of record and nominee for beneficial owners; (f) maintaining account records for shareholders and/or other beneficial owners; (g) issuing confirmations of transactions; (h) providing subaccounting with respect to shares beneficially owned by customers of third parties or providing the information to a fund as necessary for such subaccounting; (i) preparing and forwarding investor communications from the funds (such as proxies, shareholder reports, annual and semiannual financial statements and dividend, distribution and tax notices) to shareholders and/or other beneficial owners; and (j) providing other similar administrative and sub-transfer agency services. Shareholder services do not include those activities and expenses that are primarily intended to result in the sale of additional shares of the funds. During the fiscal year ended September 30, 2007, the amount of fees paid under the Advisor Class Plan for shareholder services was: Target 2010 $17,761 Target 2015 $14,491 Target 2020 $27,640 Target 2025 $64,420 Although these services are still being provided by the financial intermediaries, after December 3, 2007, they will be reimbursed by the funds' advisor out of the unified management fee rather than out of a 12b-1 fee, as described above. Distribution services include any activity undertaken or expense incurred that is primarily intended to result in the sale of Advisor Class shares, which services may include but are not limited to: (a) paying of sales commissions, on-going commissions and other payments to brokers, dealers, financial institutions or others who sell Advisor Class shares pursuant to selling agreements; (b) compensating registered representatives or other employees of the distributor who engage in or support distribution of the funds' Advisor Class shares; (c) compensating and paying expenses (including overhead and telephone expenses) of the distributor; (d) printing prospectuses, statements of additional information and reports for other-than-existing shareholders; (e) preparing, printing and distributing sales literature and advertising materials provided to the funds' shareholders and prospective shareholders; (f) receiving and answering correspondence from prospective shareholders, including distributing prospectuses, statements of additional information, and shareholder reports; ------ 32 (g) providing facilities to answer questions from prospective shareholders about fund shares; (h) complying with federal and state securities laws pertaining to the sale of fund shares; (i) assisting shareholders in completing application forms and selecting dividend and other account options; (j) providing other reasonable assistance in connection with the distribution of fund shares; (k) organizing and conducting sales seminars and payments in the form of transactional and compensation or promotional incentives; (l) profit on the foregoing; (m) paying service fees for providing personal, continuing services to investors, as contemplated by the Rules of Fair Practice of the FINRA; and (n) such other distribution and services activities as the advisor determines may be paid for by the funds pursuant to the terms of the agreement between the trust and the funds' distributor and in accordance with Rule 12b-1 of the Investment Company Act. During the fiscal year ended September 30, 2007, the amount of fees paid under the Advisor Class Plan for distribution services was: Target 2010 $17,761 Target 2015 $14,491 Target 2020 $27,640 Target 2025 $64,420 Beginning on December 3, 2007, a portion of the 12b-1 fee will be paid to the distributor for certain individual shareholder services. These payments may be made for a variety of individual shareholder services, including, but not limited to: (a) providing individualized and customized investment advisory services, including the consideration of shareholder profiles and specific goals; (b) creating investment models and asset allocation models for use by shareholders in selecting appropriate funds; (c) conducting proprietary research about investment choices and the market in general; (d) periodic rebalancing of shareholder accounts to ensure compliance with the selected asset allocation; (e) consolidating shareholder accounts in one place; and (f) other individual services. Individual shareholder services do not include those activities and expenses that are primarily intended to result in the sale of additional shares of the funds. Payments to Dealers From time to time, the distributor may provide additional payments to dealers, including but not limited to payment assistance for conferences and seminars, provision of sales or training programs for dealer employees and/or the public (including, in some cases, payment for travel expenses for registered representatives and other dealer employees who participate), advertising and sales campaigns about a fund or funds, and assistance in financing dealer-sponsored events. Other payments may be offered as well, and all such payments will be consistent with applicable law, including the then-current rules of the Financial Industry Regulatory Authority. Such payments will not change the price paid by investors for shares of the funds. ------ 33 BUYING AND SELLING FUND SHARES Information about buying, selling, exchanging and, if applicable, converting fund shares is contained in the funds' prospectus. The prospectus is available to investors without charge and may be obtained by calling us. American Century considers employer-sponsored retirement plans to include the following: * 401(a) plans * pension plans * profit sharing plans * 401(k) plans * money purchase plans * target benefit plans * Taft-Hartley multi-employer pension plans * SERP and "Top Hat" plans * ERISA trusts * employee benefit trusts * 457 plans * KEOGH plans * employer-sponsored 403(b) plans (including self-directed) * nonqualified deferred compensation plans * nonqualified excess benefit plans * nonqualified retirement plans * SIMPLE IRAs * SEP IRAs * SARSEP Traditional and Roth IRAs are not considered employer-sponsored retirement plans. The following table indicates the types of shares that may be purchased through employer-sponsored retirement plans, Traditional IRAs and Roth IRAs. TRADITIONAL EMPLOYER-SPONSORED AND RETIREMENT PLANS ROTH IRAS -------------------------------------------------------------------------------- Investor Class shares may be purchased Yes Yes -------------------------------------------------------------------------------- Advisor Class shares may be purchased Yes Yes -------------------------------------------------------------------------------- VALUATION OF A FUND'S SECURITIES All classes of the funds are offered at their net asset value (NAV). Each fund's NAV is calculated as of the close of business of the New York Stock Exchange (NYSE) on each day the NYSE is open. The NYSE usually closes at 4 p.m. Eastern time. The NYSE typically observes the following holidays: New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Although the funds expect the same holidays to be observed in the future, the NYSE may modify its holiday schedule at any time. A fund's NAV is the current value of a fund's assets, minus any liabilities, divided by the number of shares outstanding. Expenses and interest earned on portfolio securities are accrued daily. Securities held by the funds normally are priced using data supplied by an independent pricing service, provided that such prices are believed by the advisor to reflect the fair market value of portfolio securities. ------ 34 Securities maturing within 60 days of the valuation date may be valued at cost, plus or minus any amortized discount or premium, unless the advisor, based on guidelines and procedures established by the Board of Trustees for determining the valuation of a security, determines that this would not result in fair valuation of a given security. Other assets and securities for which quotations are not readily available are valued in good faith using methods approved by the Board of Trustees. TAXES Each fund intends to qualify annually as a regulated investment company under Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). By so qualifying, a fund should be exempt from federal income taxes to the extent that it distributes substantially all of its net investment income and net realized capital gains (if any) to shareholders. If a fund fails to qualify as a regulated investment company, it will be liable for taxes, significantly reducing its distributions to shareholders and eliminating shareholders' ability to treat distributions received from the funds in the same manner in which they were realized by the funds. Certain bonds purchased by the funds may be treated as bonds that were originally issued at a discount. Original issue discount represents interest for federal income tax purposes and can generally be defined as the difference between the price at which a security was issued and its stated redemption price at maturity. Although no cash is actually received by a fund until the maturity of the bond, original issue discount is treated for federal income tax purposes as income earned by a fund over the term of the bond, and therefore is subject to the distribution requirements of the Code. The annual amount of income earned on such a bond by a fund generally is determined on the basis of a constant yield to maturity that takes into account the semiannual compounding of accrued interest. Original issue discount on an obligation with interest exempt from federal income tax will constitute tax-exempt interest income to the fund. In addition, some of the bonds may be purchased by a fund at a discount that exceeds the original issue discount on such bonds, if any. This additional discount represents market discount for federal income tax purposes. The gain realized on the disposition of any bond having market discount generally will be treated as taxable ordinary income to the extent it does not exceed the accrued market discount on such bond (unless a fund elects to include market discount in income in tax years to which it is attributable or if the amount is considered de minimis). Generally, if the fund elects to include the discount in income, market discount accrues on a daily basis for each day the bond is held by a fund on a constant yield to maturity basis. In the case of any debt security having a fixed maturity date of not more than one year from date of issue, the gain realized on disposition generally will be treated as a short-term capital gain. If fund shares are purchased through taxable accounts, distributions of net investment income and net short-term capital gains are taxable to you as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of the fund, in which case they are taxed as long-term capital gains. Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period. Distributions from gains on assets held by a fund longer than 12 months are taxable as long-term gains regardless of the length of time you have held your shares in the fund. If you purchase shares in a fund and sell them at a loss within six months, your loss on the sale of those shares will be treated as a long-term capital loss to the extent of any long-term capital gains dividend you received on those shares. ------ 35 As of September 30, 2007, the funds in the table below had the following capital loss carryover, which expire in the years and amounts listed. When a fund has a capital loss carryover, it does not make capital gains distributions until the loss has been offset or expired. CAPITAL LOSS CARRYOVER -------------------------------------------------------------------------------- FUND 2008 2009 2010 2011 2012 2013 2014 2015 -------------------------------------------------------------------------------- Target - - - - - - - - 2010 -------------------------------------------------------------------------------- Target - - - - - - - $(706,117) 2015 -------------------------------------------------------------------------------- Target - - - - - - - - 2020 -------------------------------------------------------------------------------- Target - - - - - - $(103,458) $(1,842,034) 2025 -------------------------------------------------------------------------------- Under the Code, any distribution of a fund's net realized long-term capital gains that is designated by the fund as a capital gains dividend is taxable to you as long-term capital gains, regardless of the length of time you have held your shares in the fund. If you purchase shares in the fund and sell them at a loss within six months, your loss on the sale of those shares will be treated as a long-term capital loss to the extent of any long-term capital gains dividend you received on those shares. If you have not complied with certain provisions of the Internal Revenue Code and Regulations, either American Century or your financial intermediary is required by federal law to withhold and remit to the IRS the applicable federal withholding rate on reportable payments (which may include taxable dividends, capital gains distributions and redemption proceeds). Those regulations require you to certify that the Social Security number or tax identification number you provide is correct and that you are not subject to withholding for previous under-reporting to the IRS. You will be asked to make the appropriate certification on your account application. Payments reported by us to the IRS that omit your Social Security number or tax identification number will subject us to a non-refundable penalty of $50, which will be charged against your account if you fail to provide the certification by the time the report is filed. A redemption of shares of a fund (including a redemption made in an exchange transaction) will be a taxable transaction for federal income tax purposes and you generally will recognize gain or loss in an amount equal to the difference between the basis of the shares and the amount received. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the "wash sale" rules of the Code, resulting in a postponement of the recognition of such loss for federal income tax purposes. The information above is only a summary of some of the tax considerations affecting the funds and their shareholders. No attempt has been made to discuss individual tax consequences. A prospective investor should consult with his or her tax advisor or state or local tax authorities to determine whether the funds are suitable investments. FINANCIAL STATEMENTS The financial statements for the fiscal year ended September 30, 2007 have been audited by PricewaterhouseCoopers LLP, independent registered public accounting firm. Their Report of Independent Registered Public Accounting Firm and the financial statements included in the funds' Annual Report for the fiscal year ended September 30, 2007 are incorporated herein by reference. ------ 36 EXPLANATION OF FIXED-INCOME SECURITIES RATINGS As described in the prospectus, the funds may invest in fixed-income securities. Those investments, however, are subject to certain credit quality restrictions, as noted in the prospectus. The following is a summary of the rating categories referenced in the prospectus disclosure. RATINGS OF CORPORATE DEBT SECURITIES -------------------------------------------------------------------------------- Standard & Poor's -------------------------------------------------------------------------------- AAA This is the highest rating assigned by S&P to a debt obligation. It indicates an extremely strong capacity to pay interest and repay principal. -------------------------------------------------------------------------------- AA Debt rated in this category is considered to have a very strong capacity to pay interest and repay principal. It differs from the highest-rated obligations only in small degree. -------------------------------------------------------------------------------- A Debt rated A has a strong capacity to pay interest and repay principal, although it is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than debt in higher-rated categories. -------------------------------------------------------------------------------- BBB Debt rated in this category is regarded as having an adequate capacity to pay interest and repay principal. While it normally exhibits adequate protection parameters, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity to pay interest and repay principal for debt in this category than in higher- rated categories. Debt rated below BBB is regarded as having significant speculative characteristics. -------------------------------------------------------------------------------- BB Debt rated in this category has less near-term vulnerability to default than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions that could lead to inadequate capacity to meet timely interest and principal payments. The BB rating also is used for debt subordinated to senior debt that is assigned an actual or implied BBB rating. -------------------------------------------------------------------------------- B Debt rated in this category is more vulnerable to nonpayment than obligations rated 'BB', but currently has the capacity to pay interest and repay principal. Adverse business, financial, or economic conditions will likely impair the obligor's capacity or willingness to pay interest and repay principal. -------------------------------------------------------------------------------- CCC Debt rated in this category is currently vulnerable to nonpayment and is dependent upon favorable business, financial, and economic conditions to meet timely payment of interest and repayment of principal. In the event of adverse business, financial, or economic conditions, it is not likely to have the capacity to pay interest and repay principal. The CCC rating category is also used for debt subordinated to senior debt that is assigned an actual or implied B or B- rating. -------------------------------------------------------------------------------- CC Debt rated in this category is currently highly vulnerable to nonpayment. This rating category is also applied to debt subordinated to senior debt that is assigned an actual or implied CCC rating. -------------------------------------------------------------------------------- C The rating C typically is applied to debt subordinated to senior debt, and is currently highly vulnerable to nonpayment of interest and principal. This rating may be used to cover a situation where a bankruptcy petition has been filed or similar action taken, but debt service payments are being continued. -------------------------------------------------------------------------------- D Debt rated in this category is in default. This rating is used when interest payments or principal repayments are not made on the date due even if the applicable grace period has not expired, unless S&P believes that such payments will be made during such grace period. It also will be used upon the filing of a bankruptcy petition or the taking of a similar action if debt service payments are jeopardized. -------------------------------------------------------------------------------- ------ 37 Moody's Investors Service, Inc. -------------------------------------------------------------------------------- Aaa This is the highest rating assigned by Moody's to a debt obligation. It indicates an extremely strong capacity to pay interest and repay principal. -------------------------------------------------------------------------------- Aa Debt rated in this category is considered to have a very strong capacity to pay interest and repay principal and differs from Aaa issues only in a small degree. Together with Aaa debt, it comprises what are generally known as high-grade bonds. -------------------------------------------------------------------------------- A Debt rated in this category possesses many favorable investment attributes and is to be considered as upper-medium-grade debt. Although capacity to pay interest and repay principal are considered adequate, it is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than debt in higher-rated categories. -------------------------------------------------------------------------------- Baa Debt rated in this category is considered as medium-grade debt having an adequate capacity to pay interest and repay principal. While it normally exhibits adequate protection parameters, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity to pay interest and repay principal for debt in this category than in higher-rated categories. Debt rated below Baa is regarded as having significant speculative characteristics. -------------------------------------------------------------------------------- Ba Debt rated Ba has less near-term vulnerability to default than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial or economic conditions that could lead to inadequate capacity to meet timely interest and principal payments. Often the protection of interest and principal payments may be very moderate. -------------------------------------------------------------------------------- B Debt rated B has a greater vulnerability to default, but currently has the capacity to meet financial commitments. Assurance of interest and principal payments or of maintenance of other terms of the contract over any long period of time may be small. The B rating category is also used for debt subordinated to senior debt that is assigned an actual or implied Ba or Ba3 rating. -------------------------------------------------------------------------------- Caa Debt rated Caa is of poor standing, has a currently identifiable vulnerability to default, and is dependent upon favorable business, financial and economic conditions to meet timely payment of interest and repayment of principal. In the event of adverse business, financial or economic conditions, it is not likely to have the capacity to pay interest and repay principal. Such issues may be in default or there may be present elements of danger with respect to principal or interest. The Caa rating is also used for debt subordinated to senior debt that is assigned an actual or implied B or B3 rating. -------------------------------------------------------------------------------- Ca Debt rated in this category represent obligations that are speculative in a high degree. Such debt is often in default or has other marked shortcomings. -------------------------------------------------------------------------------- C This is the lowest rating assigned by Moody's, and debt rated C can be regarded as having extremely poor prospects of attaining investment standing. -------------------------------------------------------------------------------- Fitch Investors Service, Inc. -------------------------------------------------------------------------------- AAA Debt rated in this category has the lowest expectation of credit risk. Capacity for timely payment of financial commitments is exceptionally strong and highly unlikely to be adversely affected by foreseeable events. -------------------------------------------------------------------------------- AA Debt rated in this category has a very low expectation of credit risk. Capacity for timely payment of financial commitments is very strong and not significantly vulnerable to foreseeable events. -------------------------------------------------------------------------------- A Debt rated in this category has a low expectation of credit risk. Capacity for timely payment of financial commitments is strong, but may be more vulnerable to changes in circumstances or in economic conditions than debt rated in higher categories. -------------------------------------------------------------------------------- BBB Debt rated in this category currently has a low expectation of credit risk and an adequate capacity for timely payment of financial commitments. However, adverse changes in circumstances and in economic conditions are more likely to impair this capacity. This is the lowest investment grade category. -------------------------------------------------------------------------------- ------ 38 Fitch Investors Service, Inc. -------------------------------------------------------------------------------- BB Debt rated in this category has a possibility of developing credit risk, particularly as the result of adverse economic change over time. However, business or financial alternatives may be available to allow financial commitments to be met. Securities rated in this category are not investment grade. -------------------------------------------------------------------------------- B Debt rated in this category has significant credit risk, but a limited margin of safety remains. Financial commitments currently are being met, but capacity for continued debt service payments is contingent upon a sustained, favorable business and economic environment. -------------------------------------------------------------------------------- CCC, CC, C Debt rated in these categories has a real possibility for default. Capacity for meeting financial commitments depends solely upon sustained, favorable business or economic developments. A CC rating indicates that default of some kind appears probable; a C rating signals imminent default. -------------------------------------------------------------------------------- DDD, DD, D The ratings of obligations in these categories are based on their prospects for achieving partial or full recovery in a reorganization or liquidation of the obligor. While expected recovery values are highly speculative and cannot be estimated with any precision, the following serve as general guidelines. DDD obligations have the highest potential for recovery, around 90%-100% of outstanding amounts and accrued interest. DD indicates potential recoveries in the range of 50%-90% and D the lowest recovery potential, i.e., below 50%. Entities rated in these categories have defaulted on some or all of their obligations. Entities rated DDD have the highest prospect for resumption of performance or continued operation with or without a formal reorganization process. Entities rated DD and D are generally undergoing a formal reorganization or liquidation process; those rated DD are likely to satisfy a higher portion of their outstanding obligations, while entities rated D have a poor prospect of repaying all obligations. -------------------------------------------------------------------------------- To provide more detailed indications of credit quality, the Standard & Poor's ratings from AA to CCC may be modified by the addition of a plus or minus sign to show relative standing within these major rating categories. Similarly, Moody's adds numerical modifiers (1, 2, 3) to designate relative standing within its major bond rating categories. Fitch also rates bonds and uses a ratings system that is substantially similar to that used by Standard & Poor's. COMMERCIAL PAPER RATINGS -------------------------------------------------------------------------------- S&P MOODY'S DESCRIPTION -------------------------------------------------------------------------------- A-1 Prime-1 This indicates that the degree of safety (P-1) regarding timely payment is strong. Standard & Poor's rates those issues determined to possess extremely strong safety characteristics as A-1+. -------------------------------------------------------------------------------- A-2 Prime-2 Capacity for timely payment on (P-2) commercial paper is satisfactory, but the relative degree of safety is not as high as for issues designated A-1. Earnings trends and coverage ratios, while sound, will be more subject to variation. Capitalization characteristics, while still appropriated, may be more affected by external conditions. Ample alternate liquidity is maintained. -------------------------------------------------------------------------------- A-3 Prime-3 Satisfactory capacity for timely (P-3) repayment. Issues that carry this rating are somewhat more vulnerable to the adverse changes in circumstances than obligations carrying the higher designations. -------------------------------------------------------------------------------- ------ 39 NOTE RATINGS -------------------------------------------------------------------------------- S&P MOODY'S DESCRIPTION -------------------------------------------------------------------------------- SP-1 MIG-1; Notes are of the highest quality enjoying VMIG-1 strong protection from established cash flows of funds for their servicing or from established and broad-based access to the market for refinancing, or both. -------------------------------------------------------------------------------- SP-2 MIG-2; Notes are of high quality with margins of VMIG-2 protection ample, although not so large as in the preceding group. -------------------------------------------------------------------------------- SP-3 MIG-3; Notes are of favorable quality with all VMIG-3 security elements accounted for, but lacking the undeniable strength of the preceding grades. Market access for refinancing, in particular, is likely to be less well established. -------------------------------------------------------------------------------- SP-4 MIG-4; Notes are of adequate quality, carrying VMIG-4 specific risk but having protection and not distinctly or predominantly speculative. -------------------------------------------------------------------------------- ------ 40 NOTES ------ 41 MORE INFORMATION ABOUT THE FUNDS IS CONTAINED IN THESE DOCUMENTS Annual and Semiannual Reports Annual and Semiannual Reports contain more information about the funds' investments and the market conditions and investment strategies that significantly affected the funds' performance during the most recent fiscal period. You can receive a free copy of the annual and semiannual reports, and ask questions about the funds and your accounts, online at americancentury.com, by contacting American Century at the addresses or telephone numbers listed below or by contacting your financial intermediary. If you own or are considering purchasing fund shares through * an employer-sponsored retirement plan * a bank * a broker-dealer * an insurance company * another financial intermediary you can receive the annual and semiannual reports directly from them. You also can get information about the funds from the Securities and Exchange Commission (SEC). The SEC charges a duplicating fee to provide copies of this information. IN PERSON SEC Public Reference Room Washington, D.C. Call 1-202-942-8090 for location and hours. ON THE INTERNET * EDGAR database at sec.gov * By email request at publicinfo@sec.gov BY MAIL SEC Public Reference Section Washington, D.C. 20549-0102 Investment Company Act File No. 811-4165 AMERICAN CENTURY INVESTMENTS americancentury.com Banks and Trust Companies, Broker-Dealers, Self-Directed Retail Investors Financial Professionals, Insurance Companies P.O. Box 419200 P.O. Box 419786 Kansas City, Missouri 64141-6200 Kansas City, Missouri 64141-6786 1-800-345-2021 or 816-531-5575 1-800-345-6488 SH-SAI-57700 0802





AMERICAN CENTURY TARGET MATURITIES TRUST
PART C OTHER INFORMATION ITEM 23. Exhibits (a) (1) Amended and Restated Agreement and Declaration of Trust, dated March 26, 2004 (filed electronically as Exhibit a to Post-Effective Amendment No. 40 to the Registration Statement of the Registrant on November 30, 2004, File No. 2-94608, and incorporated herein by reference). (2) Amendment No. 1 to the Amended and Restated Agreement and Declaration of Trust, dated March 8, 2007, is included herein. (3) Amendment No. 2 to the Amended and Restated Agreement and Declaration of Trust, dated August 31, 2007, is included herein. (b) Amended and Restated Bylaws, dated December 7, 2007, are included herein. (c) Registrant hereby incorporates by reference, as though set forth fully herein, Article III, Article IV, Article V, Article VI and Article VIII of Registrant's Amended and Restated Agreement and Declaration of Trust, appearing as Exhibit (a) herein, and Article II, Article VII, Article VIII and Article IX of Registrant's Amended and Restated Bylaws, incorporated by reference as Exhibit (b) herein. (d) Management Agreement with American Century Investment Management, Inc., dated August 1, 2007, is included herein. (e) (1) Amended and Restated Distribution Agreement with American Century Investment Services, Inc., dated August 1, 2007, is included herein. (2) Form of Dealer/Agency Agreement (filed electronically as Exhibit e2 to Pre-Effective Amendment No. 25 to the Registration Statement of American Century International Bond Funds, on April 30, 2007, File No. 333-43321, and incorporated herein by reference). (f) Not applicable. (g) (1) Master Agreement with Commerce Bank, N.A. dated January 22, 1997 (filed electronically as Exhibit b8e to Post-Effective Amendment No. 76 to the Registration Statement of American Century Mutual Funds, Inc. on February 28, 1997, File No. 2-14213, and incorporated herein by reference). (2) Global Custody Agreement with The Chase Manhattan Bank, dated August 9, 1996 (filed electronically as Exhibit b8 to Post-Effective Amendment No. 31 to the Registration Statement of American Century Government Income Trust on February 7, 1997, File No. 2-99222, and incorporated herein by reference). (3) Amendment to Global Custody Agreement with The Chase Manhattan Bank, dated December 9, 2000 (filed electronically as Exhibit g2 to Pre-Effective Amendment No. 2 to the Registration Statement of American Century Variable Portfolios II, Inc. on January 9, 2001, File No. 333-46922, and incorporated herein by reference). (4) Amendment No. 2 to the Global Custody Agreement between American Century Investments and the JPMorgan Chase Bank, dated as of May 1, 2004 (filed electronically as Exhibit g4 to Post-Effective Amendment No. 35 to the Registration Statement of American Century Quantitative Equity Funds, Inc. on April 29, 2004, File No. 33-19589, and incorporated herein by reference). (5) Chase Manhattan Bank Custody Fee Schedule, dated October 19, 2000 (filed electronically as Exhibit g5 to Post-Effective Amendment No. 35 to the Registration Statement of American Century Quantitative Equity Funds, Inc. on April 29, 2004, File No. 33-19589, and incorporated herein by reference). (6) Amendment No. 3 to the Global Custody Agreement between American Century Investments and the JPMorgan Chase Bank, dated as of May 31, 2006 (filed electronically as Exhibit g6 to Pre-Effective Amendment No. 1 to the Registration Statement of American Century Growth Funds, Inc. on May 30, 2006, File No. 333-132114, and incorporated herein by reference). (h) (1) Amended and Restated Transfer Agency Agreement with American Century Services, LLC, dated August 1, 2007, is included herein. (2) American Century Funds Credit Agreement dated December 12, 2007 with Bank of America, N.A., as Administrative Agent (filed electronically as Exhibit h2 to Post-Effective Amendment No. 43 to the Registration Statement of American Century California Tax-Free and Municipal Funds on December 28, 2007, File No. 2-82734, and incorporated herein by reference). (3) Customer Identification Program Reliance Agreement (filed electronically as Exhibit h2 to Pre-Effective Amendment No. 1 to the Registration Statement of American Century Growth Funds, Inc. on May 30, 2006, File No. 333-132114, and incorporated herein by reference). (i) Opinion and Consent of Counsel, dated January 28, 2005 (filed electronically as Exhibit i to Post-Effective Amendment No. 41 to the Registration Statement of the Registrant on January 28, 2005, File No. 2-94608, and incorporated herein by reference). (j) Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm, dated January 22, 2008, is included herein. (k) Not applicable. (l) Not applicable. (m) Amended and Restated Master Distribution and Individual Shareholder Services Plan (Advisor Class), dated January 1, 2008, is included herein. (n) Amended and Restated Multiple Class Plan, dated January 1, 2008, is included herein. (o) Reserved. (p) (1) American Century Investments Code of Ethics (filed electronically as Exhibit p1 to Post-Effective Amendment No. 41 to the Registration Statement of American Century California Tax-Free and Municipal Funds on December 28, 2006, File No. 2-82734, and incorporated herein by reference). (2) Independent Directors' Code of Ethics amended February 28, 2000 (filed electronically as Exhibit p2 to Post-Effective Amendment No. 40 to the Registration Statement of the Registrant on November 30, 2004, File No. 2-94608, and incorporated herein by reference). (q) (1) Power of Attorney, dated September 7, 2007 (filed electronically as Exhibit q1 to Post-Effective Amendment No. 55 to the Registration Statement of American Century Government Income Trust on September 26, 2007, File No. 2-99222, and incorporated herein by reference). (2) Secretary's Certificate, dated September 7, 2007 (filed electronically as Exhibit q2 to Post-Effective Amendment No. 55 to the Registration Statement of American Century Government Income Trust on September 26, 2007, File No. 2-99222, and incorporated herein by reference). Item 24. Persons Controlled by or Under Common Control with Fund (a) The persons who serve as the trustees or directors of the Registrant also serve, in substantially identical capacities, of the following investment companies: American Century California Tax-Free and Municipal Funds American Century Government Income Trust American Century International Bond Funds American Century Investment Trust American Century Municipal Trust American Century Quantitative Equity Funds, Inc. American Century Target Maturities Trust American Century Variable Portfolios II, Inc. Because the boards of each of the above-named investment companies are identical, these companies may be deemed to be under common control. Item 25. Indemnification. As stated in Article VII, Section 3 of the Amended and Restated Declaration of Trust, incorporated herein by reference to Exhibit (a) to the Registration Statement, "The Trustees shall be entitled and empowered to the fullest extent permitted by law to purchase insurance for and to provide by resolution or in the Bylaws for indemnification out of Trust assets for liability and for all expenses reasonably incurred or paid or expected to be paid by a Trustee or officer in connection with any claim, action, suit, or proceeding in which he or she becomes involved by virtue of his or her capacity or former capacity with the Trust. The provisions, including any exceptions and limitations concerning indemnification, may be set forth in detail in the Bylaws or in a resolution adopted by the Board of Trustees." Registrant hereby incorporates by reference, as though set forth fully herein, Article VI of the Registrant's Amended and Restated Bylaws, appearing as Exhibit (b) herein. The Registrant has purchased an insurance policy insuring its officers and directors against certain liabilities which such officers and trustees may incur while acting in such capacities and providing reimbursement to the Registrant for sums which it may be permitted or required to pay to its officers and trustees by way of indemnification against such liabilities, subject in either case to clauses respecting deductibility and participation. Item 26. Business and Other Connections of the Investment Advisor In addition to serving as the Registrant's investment advisor, American Century Investment Management, Inc. provides portfolio management services for other investment companies as well as for other business and institutional clients. Business backgrounds of the directors and principal executive officers of the advisor that also hold positions with the Registrant are included under "Management" in the Statement of Additional Information included in this registration statement. The remaining principal executive officers and directors of the advisor and their principal occupations during at least the past 2 fiscal years are as follows: James E. Stowers, Jr. (Director). Founder, Co-Chairman, Director and Controlling Shareholder, American Century Companies, Inc. (ACC); Co-Vice Chairman, ACC (January 2005 to February 2007); Chairman, ACC (January 1995 to December 2004); Director, American Century Global Investment Management, Inc. (ACGIM), American Century Services, LLC (ACS), American Century Investment Services, Inc. (ACIS) and other ACC subsidiaries, as well as a number of American Century-advised investment companies. Enrique Chang (President, Chief Executive Officer and Chief Investment Officer of ACIM and ACGIM). Served as President and Chief Executive Officer, Munder Capital Management, 2002 to 2006. The principal address for all American Century entities other than ACGIM is 4500 Main Street, Kansas City, MO 64111. The principal address for ACGIM is 666 Third Avenue, 23rd Floor, New York, NY 10017. Item 27. Principal Underwriters I. (a) American Century Investment Services, Inc. (ACIS) acts as principal underwriter for the following investment companies: American Century Asset Allocation Portfolios, Inc. American Century California Tax-Free and Municipal Funds American Century Capital Portfolios, Inc. American Century Government Income Trust American Century Growth Funds, Inc. American Century International Bond Funds American Century Investment Trust American Century Municipal Trust American Century Mutual Funds, Inc. American Century Quantitative Equity Funds, Inc. American Century Strategic Asset Allocations, Inc. American Century Target Maturities Trust American Century Variable Portfolios, Inc. American Century Variable Portfolios II, Inc. American Century World Mutual Funds, Inc. ACIS is registered with the Securities and Exchange Commission as a broker-dealer and is a member of the Financial Industry Regulatory Authority. ACIS is located at 4500 Main Street, Kansas City, Missouri 64111. ACIS is a wholly-owned subsidiary of American Century Companies, Inc. (b) The following is a list of the directors, executive officers and partners of ACIS: Name and Principal Positions and Offices Positions and Offices Business Address* with Underwriter with Registrant -------------------------------------------------------------------------- James E. Stowers, Jr. Director none Jonathan S. Thomas Director President and Trustee Brian Jeter President and Chief none Executive Officer Jon W. Zindel Senior Vice President Tax Officer and Chief Accounting Officer David K. Anderson Chief Financial Officer none Mark Killen Senior Vice President none David Larrabee Senior Vice President none Barry Mayhew Senior Vice President none David C. Tucker Senior Vice President none Joseph S. Reece Chief Compliance Officer none * All addresses are 4500 Main Street, Kansas City, Missouri 64111 (c) Not applicable. Item 28. Location of Accounts and Records All accounts, books and other documents required to be maintained by Section 31(a) of the 1940 Act, and the rules promulgated thereunder, are in the possession of American Century Investment Management, Inc., 4500 Main Street, Kansas City, MO 64111 and 1665 Charleston Road, Mountain View, CA; American Century Services, LLC, 4500 Main Street, Kansas City, MO 64111; JPMorgan Chase Bank, 4 Metro Tech Center, Brooklyn, NY 11245; and Commerce Bank, N.A., 1000 Walnut, Kansas City, MO 64105. Item 29. Management Services - Not applicable. Item 30. Undertakings - Not applicable. SIGNATURES Pursuant to the requirements of the Securities Act and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement amendment pursuant to Rule 485(b) promulgated under the Securities Act of 1933, as amended, and has duly caused this amendment to be signed on its behalf by the undersigned, duly authorized, in the City of Kansas City, State of Missouri, on the 28th day of January, 2008. AMERICAN CENTURY TARGET MATURITIES TRUST (Registrant) By: * ------------------------------------- Jonathan S. Thomas President Pursuant to the requirements of the Securities Act of 1933, this Registration Statement amendment has been signed below by the following persons in the capacities and on the dates indicated. SIGNATURE TITLE DATE --------- ----- ---- * President and Trustee January 28, 2008 -------------------------- Jonathan S. Thomas * Vice President, January 28, 2008 -------------------------- Treasurer and Chief Robert J. Leach Financial Officer * Trustee January 28, 2008 -------------------------- John Freidenrich Chairman of the January 28, 2008 * Board and Trustee -------------------------- Ronald J. Gilson * Trustee January 28, 2008 ------------------------ Peter F. Pervere * Trustee January 28, 2008 -------------------------- Myron S. Scholes * Trustee January 28, 2008 -------------------------- John B. Shoven * Trustee January 28, 2008 -------------------------- Jeanne D. Wohlers *By: /s/ Kathleen Gunja Nelson --------------------------------------- Kathleen Gunja Nelson Attorney in Fact (pursuant to a Power of Attorney dated September 7, 2007) EXHIBIT INDEX EXHIBIT DESCRIPTION OF DOCUMENT NUMBER EXHIBIT (a)(2) Amendment No. 1 to the Amended and Restated Agreement and Declaration of Trust, dated March 8, 2007. EXHIBIT (a)(3) Amendment No. 2 to the Amended and Restated Agreement and Declaration of Trust, dated August 31, 2007. EXHIBIT (b) Amended and Restated Bylaws, dated December 7, 2007. EXHIBIT (d) Management Agreement with American Century Investment Management, Inc., dated August 1, 2007. EXHIBIT (e)(1) Amended and Restated Distribution Agreement with American Century Investment Services, Inc., dated August 1, 2007. EXHIBIT (h)(1) Amended and Restated Transfer Agency Agreement with American Century Services, LLC, dated August 1, 2007. EXHIBIT (j) Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm, dated January 22, 2008. EXHIBIT (m) Amended and Restated Master Distribution and Individual Shareholder Services Plan (Advisor Class), dated January 1, 2008. EXHIBIT (n) Amended and Restated Multiple Class Plan, dated January 1, 2008.

                                                                  EXHIBIT (a)(2)


                               AMENDMENT NO. 1 TO
             AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST
                   OF AMERICAN CENTURY TARGET MATURITIES TRUST


     THIS AMENDMENT NO. 1 TO AMENDED AND RESTATED  AGREEMENT AND  DECLARATION OF
TRUST is made as of the 8th day of March, 2007 by the Trustees hereunder.

     WHEREAS,  the Board of Trustees have executed an Amendment and  Restatement
to the Agreement and Declaration of Trust dated March 26, 2004; and

     WHEREAS,  pursuant to Article VIII,  Section 8 of the Declaration of Trust,
the Trustees wish to amend the Declaration of Trust as follows.

     NOW, THEREFORE,  BE IT RESOLVED, the Declaration of Trust is hereby amended
by  deleting  the present  Section  6(d) of Article  III and  inserting  in lieu
thereof the following:

     (d) VOTING.  On any matter  submitted to a vote of the  Shareholders of the
     Trust,  all Shares of all Series and Classes then entitled to vote shall be
     voted  together,  except that (i) when required by the 1940 Act to be voted
     by individual  Series or Class,  Shares shall be voted by individual Series
     or  Class,   or  (ii)  when  the  matter  affects  only  the  interests  of
     Shareholders  of one or more Series or Classes,  only  Shareholders of such
     one or more Series or Classes shall be entitled to vote thereon.

     RESOLVED,  the  Declaration  of Trust is hereby  amended  by  deleting  the
present Section 3 of Article V and inserting in lieu thereof the following:

     SECTION 3. QUORUM AND REQUIRED VOTE Except when a larger quorum is required
     by applicable law, by the Bylaws or by this Declaration of Trust, one-third
     of the Shares entitled to vote shall constitute a quorum at a Shareholders'
     meeting.  When any one or more  Series or  Classes  are to vote as a single
     class separate from any other Shares,  one-third of the Shares of each such
     Series  or  Class  entitled  to  vote  shall   constitute  a  quorum  at  a
     Shareholders'  meeting of that Series or Class. Any meeting of Shareholders
     may be adjourned from time to time by a majority of the votes properly cast
     upon the question,  whether or not a quorum is present, and the meeting may
     be held as adjourned  within a  reasonable  time after the date set for the
     original  meeting  without  further  notice.  Subject to the  provisions of
     Article  III,  Section  6(d),  when a quorum is present at any  meeting,  a
     majority of the Shares  voted shall  decide any  questions  and a plurality
     shall  elect a  Trustee,  except  when a  larger  vote is  required  by any
     provision of this Declaration of Trust or the Bylaws or by applicable law.





     RESOLVED,  the  Declaration  of Trust is hereby  amended  by  deleting  the
present Section 4 of Article VIII and inserting in lieu thereof the following:

     SECTION 4.  TERMINATION OF TRUST, SERIES OR CLASS
     Unless  terminated as provided  herein,  the Trust shall  continue  without
     limitation  of time.  The Trust may be terminated at any time by vote of at
     least two-thirds (66 (2)/3%) of the Shares of each Series entitled to vote,
     voting  separately by Series,  or by the Trustees by written  notice to the
     Shareholders.  Any Series or Class may be terminated at any time by vote of
     at least  two-thirds (66 (2)/3%) of the Shares of that Series or Class,  or
     by the  Trustees by written  notice to the  Shareholders  of that Series or
     Class.

     Upon termination of the Trust (or any Series or Class, as the case may be),
     after paying or otherwise  providing for all charges,  taxes,  expenses and
     liabilities belonging,  severally, to each Series (or the applicable Series
     or Class, as the case may be), whether due or accrued or anticipated as may
     be  determined by the Trustees,  the Trust shall,  in accordance  with such
     procedures  as the  Trustees  consider  appropriate,  reduce the  remaining
     assets  belonging,  severally,  to each Series (or the applicable Series or
     Class,  as the case may be),  to  distributable  form in cash or  shares or
     other securities,  or any combination  thereof, and distribute the proceeds
     belonging to each Series (or the  applicable  Series or Class,  as the case
     may be), to the Shareholders of that Series or Class, as a Series or Class,
     ratably  according  to the number of Shares of that Series or Class held by
     the several Shareholders on the date of termination.

     IN WITNESS  WHEREOF,  the Trustees do hereto set their hands as of the date
written above.

TRUSTEES OF THE AMERICAN CENTURY TARGET MATURITIES TRUST


/s/ John Freidenrich                          /s/ Ronald J. Gilson
---------------------------                   -----------------------------
John Freidenrich                              Ronald J. Gilson


/s/ Kathryn A. Hall                           /s/ Myron S. Scholes
---------------------------                   -----------------------------
Kathryn A. Hall                               Myron S. Scholes


/s/ John B. Shoven                            /s/ Jeanne D. Wohlers
---------------------------                   -----------------------------
John B. Shoven                                Jeanne D. Wohlers
                                                                  EXHIBIT (a)(3)



                               AMENDMENT NO. 2 TO
             AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST
                   OF AMERICAN CENTURY TARGET MATURITIES TRUST


     THIS AMENDMENT NO. 2 TO AMENDED AND RESTATED  AGREEMENT AND  DECLARATION OF
TRUST is made as of the 31st day of August, 2007, by the Trustees hereunder.

     WHEREAS,  the Target 2005 Fund was liquidated in accordance  with a Plan of
Liquidation, effective November 18, 2005; and

     WHEREAS,  the Target 2030 Fund was liquidated in accordance  with a Plan of
Liquidation, effective June 17, 2005; and

     WHEREAS,  the  Board  of  Trustees  has  determined  that it is in the best
interest of American Century Target  Maturities Trust (the "Trust") to amend the
Trust's Amended and Restated  Agreement and Declaration of Trust to reflect such
liquidation;

     NOW, THEREFORE, BE IT RESOLVED, that Schedule A of the Amended and Restated
Agreement and  Declaration  of Trust for the Trust is hereby  amended to reflect
such actions by deleting the text thereof in its entirety and  inserting in lieu
therefore the Schedule A attached hereto.

     IN WITNESS WHEREOF, a majority of the Trustees do hereto set their hands as
of the date first referenced above.

Trustees of the American Century Target Maturities Trust


/s/ Jonathan S. Thomas                      /s/ Peter F. Pervere
---------------------------------           ---------------------------------
Jonathan S. Thomas                          Peter F. Pervere


/s/ John Freidenrich                        /s/ Myron S. Scholes
---------------------------------           ---------------------------------
John Freidenrich                            Myron S. Scholes


/s/ Ronald J. Gilson                        /s/ John B. Shoven
---------------------------------           ---------------------------------
Ronald J. Gilson                            John B. Shoven


/s/ Kathryn A. Hall                         /s/ Jeanne D. Wohlers
---------------------------------           ---------------------------------
Kathryn A. Hall                             Jeanne D. Wohlers


                                       1





                                   SCHEDULE A

                    AMERICAN CENTURY TARGET MATURITIES TRUST

Pursuant to Article III,  Section 6, the Trustees hereby establish and designate
the following Series as Series of the Trust (and the Classes thereof),  with the
relative rights and preferences as described in Section 6:

SERIES                           CLASS                    DATE OF ESTABLISHMENT

Target 2010 Fund            Investor Class                     11/08/1984
                            Advisor Class                      08/01/1997

Target 2015 Fund            Investor Class                     09/01/1986
                            Advisor Class                      08/01/1997

Target 2020 Fund            Investor Class                     12/29/1989
                            Advisor Class                      08/01/1997

Target 2025 Fund            Investor Class                     02/16/1996
                            Advisor Class                      08/01/1997



This  Schedule  A shall  supersede  any  previously  adopted  Schedule  A to the
Declaration of Trust.


                                      A-1

                                                                     EXHIBIT (b)

                    AMERICAN CENTURY TARGET MATURITIES TRUST


                                     BYLAWS
                 AS AMENDED AND RESTATED AS OF DECEMBER 7, 2007

                                TABLE OF CONTENTS

ARTICLE I OFFICES.................................................................1
     Section 1.  Principal Office.................................................1
     Section 2.  Other Offices....................................................1

ARTICLE II MEETINGS OF SHAREHOLDERS...............................................1
     Section 1.  Place of Meetings................................................1
     Section 2.  Call of Meeting..................................................1
     Section 3.  Notice of Shareholders' Meeting..................................1
     Section 4.  Manner of Giving Notice; Affidavit of Notice.....................2
     Section 5.  Adjourned Meeting; Notice........................................2
     Section 6.  Voting...........................................................2
     Section 7.  Waiver of Notice by Consent of Absent Shareholders...............3
     Section 8.  Shareholder Action by Written Consent without a Meeting..........3
     Section 9.  Record Date for Shareholder Notice, Voting and Giving Consents...3
     Section 10.  Proxies.........................................................4
     Section 11.  Inspectors of Election..........................................4

ARTICLE III TRUSTEES..............................................................5
     Section 1.  Powers...........................................................5
     Section 2.  Number and Qualification of Trustees.............................5
     Section 3.  Mandatory Retirement.............................................5
     Section 4.  Vacancies........................................................5
     Section 5.  Place of Meetings and Meetings by Telephone......................6
     Section 6.  Regular Meetings.................................................6
     Section 7.  Special Meetings.................................................6
     Section 8.  Quorum...........................................................6
     Section 9.  Waiver of Notice.................................................7
     Section 10.  Adjournment.....................................................7
     Section 11.  Notice of Adjournment...........................................7
     Section 12.  Action without a Meeting........................................7
     Section 13.  Fees and Compensation of Trustees...............................7

ARTICLE IV COMMITTEES.............................................................8
     Section 1.  Committees of Trustees...........................................8
     Section 2.  Meetings and Action of Committees................................8

ARTICLE V OFFICERS................................................................8
     Section 1.  Officers.........................................................8
     Section 2.  Election of Officers.............................................9
     Section 3.  Subordinate Officers.............................................9
     Section 4.  Removal and Resignation of Officers..............................9
     Section 5.  Vacancies In Offices.............................................9
     Section 6.  Chairman of the Board............................................9
     Section 7.  President........................................................9
     Section 8.  Vice Presidents.................................................10
     Section 9.  Secretary.......................................................10
     Section 10.  Chief Financial Officer........................................10
     Section 11.  Chief Compliance Officer.......................................11

ARTICLE VI INDEMNIFICATION OF TRUSTEES, OFFICERS, EMPLOYEES AND OTHER AGENTS.....11
     Section 1. Indemnification..................................................11





AMERICAN CENTURY TARGET MATURITIES TRUST                                     BYLAWS
------------------------------------------------------------------------------------

TABLE OF CONTENTS, CONTINUED

     Section 2. "Disabling Conduct"..............................................11
     Section 3. Conditions for Indemnification...................................11
     Section 4. Advance of Expenses..............................................12
     Section 5. Rights Not Exclusive.............................................12
     Section 6. Survival.........................................................12
     Section 7. Definitions......................................................12
     Section 8. Insurance........................................................13
     Section 9. Fiduciaries of Employee Benefit Plan.............................13

ARTICLE VII RECORDS AND REPORTS..................................................13
     Section 1.  Maintenance and Inspection of Share Register....................13
     Section 2.  Maintenance and Inspection of Bylaws............................13
     Section 3.  Maintenance and Inspection of Other Records.....................14
     Section 4.  Inspection by Trustees..........................................14
     Section 5.  Financial Statements............................................14

ARTICLE VIII GENERAL MATTERS.....................................................14
     Section 1.  Checks, Drafts, Evidence of Indebtedness........................14
     Section 2.  Contracts and Instruments; How Executed.........................14
     Section 3.  Certificates for Shares.........................................15
     Section 4.  Lost Certificates...............................................15
     Section 5.  Uncertificated Shares...........................................15
     Section 6.  Representation of Shares of Other Entities......................16

ARTICLE IX AMENDMENTS............................................................16
     Section 1.  Amendment by Shareholders.......................................16
     Section 2.  Amendment by Trustees...........................................16


                                                            TABLE OF CONENTS-page 2






                    AMERICAN CENTURY TARGET MATURITIES TRUST


                                     BYLAWS

                 AS AMENDED AND RESTATED AS OF DECEMBER 7, 2007

                                    ARTICLE I
                                     OFFICES

SECTION 1.  PRINCIPAL OFFICE

The Board of Trustees shall fix the location of the principal  executive  office
of the Trust at any place within or outside The Commonwealth of Massachusetts.

SECTION 2.  OTHER OFFICES

The Board of Trustees may at any time establish branch or subordinate offices at
any place or places where the trust intends to do business.


                                   ARTICLE II
                            MEETINGS OF SHAREHOLDERS

SECTION 1.  PLACE OF MEETINGS

Meetings  of  shareholders  shall be held at any  place  within or  outside  The
Commonwealth  of  Massachusetts  designated  by the  Board of  Trustees.  In the
absence of any such  designation,  shareholders'  meetings  shall be held at the
principal executive office of the Trust.

SECTION 2.  CALL OF MEETING

A meeting of the shareholders  shall be held whenever called by the Trustees and
whenever  required by the provisions of the 1940 Act. A shareholder  meeting may
be called at any time by the Board of Trustees  or by the  Chairman of the Board
or by the President.  If a shareholder  meeting is a meeting of the shareholders
of  one  or  more  series  or  classes  of  shares,  but  not a  meeting  of all
shareholders  of the Trust,  then only special  meetings of the  shareholders of
such one or more series or classes shall be called and only the  shareholders of
such one or more series or classes shall be entitled to notice of and to vote at
such meeting.

SECTION 3.  NOTICE OF SHAREHOLDERS' MEETING

All notices of  meetings of  shareholders  shall be sent or  otherwise  given in
accordance  with  Section 4 of this  Article  II not less than ten (10) nor more
than  seventy-five  (75) days before the date of the  meeting.  The notice shall
specify (i) the place, date and hour of the meeting, and (ii) the general nature
of the business to be  transacted.  The notice of any meeting at which  trustees
are to be elected also shall include the name of any nominee or nominees whom at
the time of the notice are intended to be presented for election.

If action is proposed to be taken at any meeting for  approval of (i) a contract
or transaction in which a trustee has a direct or indirect  financial  interest,
(ii) an amendment of the  Declaration of




AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


Trust,  (iii) a reorganization of the Trust, or (iv) a voluntary  dissolution of
the Trust, the notice shall also state the general nature of that proposal.

SECTION 4.  MANNER OF GIVING NOTICE; AFFIDAVIT OF NOTICE

Notice of any meeting of  shareholders  shall be given either  personally  or by
first-class mail or telegraphic or other written communication, charges prepaid,
addressed to the shareholder at the address of that shareholder appearing on the
books of the  Trust or its  transfer  agent or given by the  shareholder  to the
Trust for the purpose of notice. If no such address appears on the Trust's books
or is  given,  notice  shall  be  deemed  to  have  been  given  if sent to that
shareholder by first-class mail or telegraphic or other written communication to
the Trust's  principal  executive  office,  or if  published  at least once in a
newspaper  of general  circulation  in the county  where that office is located.
Notice shall be deemed to have been given at the time when delivered  personally
or  deposited  in the  mail  or sent by  telegram  or  other  means  of  written
communication.

If any notice  addressed  to a  shareholder  at the address of that  shareholder
appearing  on the books of the  Trust is  returned  to the  Trust by the  United
States Postal  Service  marked to indicate that the Postal  Service is unable to
deliver the notice to the  shareholder  at the  address,  all future  notices or
reports shall be deemed to have been duly given without further mailing if these
shall be available to the  shareholder on written  demand of the  shareholder at
the  principal  executive  office of the Trust for a period of one year from the
date of the giving of the notice.

An  affidavit  of the  mailing  or  other  means of  giving  any  notice  of any
shareholder's meeting shall be executed by the Secretary, an Assistant Secretary
or any  transfer  agent of the Trust  giving  the  notice and shall be filed and
maintained in the minute book of the Trust.

SECTION 5.  ADJOURNED MEETING; NOTICE

Any shareholder's meeting,  whether or not a quorum is present, may be adjourned
from time to time by the vote of the majority of the shares  represented at that
meeting, either in person or by proxy.

When any meeting of shareholders  is adjourned to another time or place,  notice
need not be given of the adjourned  meeting at which the  adjournment  is taken,
unless a new  record  date of the  adjourned  meeting  is fixed  or  unless  the
adjournment  is for more than sixty (60) days from the date set for the original
meeting,  in which case the Board of Trustees shall set a new record date. Where
required,  notice  of  any  such  adjourned  meeting  shall  be  given  to  each
shareholder  of record  entitled to vote at the adjourned  meeting in accordance
with the  provisions  of Section 3 and 4 of this  Article  II. At any  adjourned
meeting, the Trust may transact any business which might have been transacted at
the original meeting.

SECTION 6.  VOTING

The  shareholders  entitled  to vote at any  meeting  of  shareholders  shall be
determined in accordance  with the provisions of the Declaration of Trust, as in
effect at such time. The  shareholders'  vote may be by voice vote or by ballot,
provided,  however, that any election for trustees must be by ballot if demanded
by any  shareholder  before  the voting  has  begun.  On any  matter  other than
elections of trustees,  any  shareholder may vote part of the shares in favor of
the proposal and refrain from voting the  remaining  shares or vote them against
the proposal, but if


                                                                          page 2



AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


the  shareholder  fails to specify the number of shares which the shareholder is
voting  affirmatively,  it will be conclusively  presumed that the shareholder's
approving  vote is with  respect to the total  shares  that the  shareholder  is
entitled to vote on such proposal.

SECTION 7.  WAIVER OF NOTICE BY CONSENT OF ABSENT SHAREHOLDERS

The transactions of the meeting of shareholders,  however called and noticed and
wherever  held,  shall be as valid as though  had at a meeting  duly held  after
regular call and notice if a quorum be present  either in person or by proxy and
if either before or after the meeting,  each person entitled to vote who was not
present in person or by proxy signs a written waiver of notice or a consent to a
holding of the meeting or an approval  of the  minutes.  The waiver of notice or
consent need not specify  either the business to be transacted or the purpose of
any meeting of shareholders.

Attendance by a person at a meeting shall also  constitute a waiver of notice of
that meeting,  except when the person objects at the beginning of the meeting to
the  transaction of any business  because the meeting is not lawfully  called or
convened and except that attendance at a meeting is not a waiver of any right to
object to the consideration of matters not included in the notice of the meeting
if that objection is expressly made at the beginning of the meeting.

SECTION 8.  SHAREHOLDER ACTION BY WRITTEN CONSENT WITHOUT A MEETING

Any  action  which  may be taken at any  meeting  of  shareholders  may be taken
without a meeting and without prior notice if a consent in writing setting forth
the action so taken is signed by the holders of  outstanding  shares  having not
less than the minimum  number of votes that would be  necessary  to authorize or
take that  action at a meeting  at which  all  shares  entitled  to vote on that
action  were  present  and  voted.  All such  consents  shall be filed  with the
Secretary  of the Trust and shall be  maintained  in the  Trust's  records.  Any
shareholder  giving a written  consent or the  shareholder's  proxy holders or a
transferee  of the shares or a personal  representative  of the  shareholder  or
their  respective  proxy holders may revoke the consent by a writing received by
the  Secretary  of the Trust  before  written  consents  of the number of shares
required to authorize the proposed action have been filed with the Secretary.

If the consents of all shareholders  entitled to vote have not been solicited in
writing and if the unanimous written consent of all such shareholders  shall not
have been  received,  the  Secretary  shall  give  prompt  notice of the  action
approved by the  shareholders  without a meeting.  This notice shall be given in
the manner specified in Section 4 of this Article II. In the case of approval of
(i)  contracts  or  transactions  in which a trustee  has a direct  or  indirect
financial  interest,  (ii)  indemnification  of agents of the Trust, and (iii) a
reorganization  of the Trust,  the notice  shall be given at least ten (10) days
before the consummation of any action authorized by that approval.

SECTION 9.  RECORD DATE FOR SHAREHOLDER NOTICE, VOTING AND GIVING CONSENTS

For purposes of determining the  shareholders  entitled to notice of any meeting
or to vote or entitled to give consent to action without a meeting, the Board of
Trustees  may fix in  advance  a  record  date  which  shall  not be  more  than
seventy-five  (75) days nor less than ten (10) days  before the date of any such
meeting as provided in the Declaration of Trust.

If the Board of Trustees does not so fix a record date:


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(a)  The record date for  determining  shareholders  entitled to notice of or to
     vote at a meeting of shareholders  shall be at the close of business on the
     business day next  preceding  the day on which notice is given or if notice
     is waived,  at the close of business on the business day next preceding the
     day on which the meeting is held.

(b)  The record date for  determining  shareholders  entitled to give consent to
     action in writing without a meeting,  (i) when no prior action by the Board
     of  Trustees  has been taken,  shall be the day on which the first  written
     consent is given,  or (ii) when prior  action of the Board of Trustees  has
     been taken, shall be at the close of business on the day on which the Board
     of  Trustees  adopt  the   resolution   relating  to  that  action  or  the
     seventy-fifth day before the date of such other action, whichever is later.

SECTION 10.  PROXIES

Every person entitled to vote for trustees or on any other matter shall have the
right to do so either in person or by one or more agents authorized by a written
proxy signed by the person and filed with the  Secretary  of the Trust.  A proxy
shall be deemed signed if the shareholder's name is placed on the proxy (whether
by manual signature,  typewriting,  telegraphic transmission,  or by electronic,
telephonic,  computerized or other  alternative form of execution  authorized by
the Trustees) by the shareholder or the shareholder's attorney-in-fact.  A proxy
with respect to Shares held in the name of two or more persons shall be valid if
executed  by one of them  unless at or prior to exercise of such proxy the Trust
receives  specific  written notice to the contrary from any one of them. A proxy
purporting  to be  exercised  by or on behalf of a  Shareholder  shall be deemed
valid  unless  challenged  at or prior to its exercise and the burden of proving
invalidity shall rest on the challenger. A validly executed proxy which does not
state that it is irrevocable  shall continue in full force and effect unless (i)
revoked by the person  executing it before the vote  pursuant to that proxy by a
writing  delivered  to the  Trust  stating  that the  proxy is  revoked  or by a
subsequent  proxy executed by, or attendance at the meeting and voting in person
by the person  executing  that  proxy;  or (ii)  written  notice of the death or
incapacity  of the maker of that proxy is received by the Trust  before the vote
pursuant  to that proxy is  counted;  provided  however,  that no proxy shall be
valid  after the  expiration  of eleven  (11)  months from the date of the proxy
unless otherwise  provided in the proxy. The revocability of a proxy that states
on its face that it is  irrevocable  shall be governed by the  provisions of the
General  Corporation Law of the Commonwealth of  Massachusetts,  as if the Trust
were a Massachusetts corporation.

SECTION 11.  INSPECTORS OF ELECTION

Before any  meeting of  shareholders,  the Board of  Trustees  may  appoint  any
persons  other than  nominees for office to act as inspectors of election at the
meeting or its adjournment.  If no inspectors of election are so appointed,  the
chairman  of the  meeting  may  and  on the  request  of  any  shareholder  or a
shareholder's  proxy shall,  appoint inspectors of election at the meeting.  The
number of  inspectors  shall be either one (1) or three (3). If  inspectors  are
appointed  at a meeting on the request of one or more  shareholders  or proxies,
the  holders of a majority  of shares or their  proxies  present at the  meeting
shall determine whether one (1) or three (3) inspectors are to be appointed.  If
any person  appointed as  inspector  fails to appear or fails or refuses to act,
the  chairman  of the meeting  may and on the  request of any  shareholder  or a
shareholder's proxy, shall appoint a person to fill the vacancy.


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These inspectors shall:

(a)  Determine  the number of shares  outstanding  and the voting power of each,
     the shares  represented  at the meeting,  the existence of a quorum and the
     authenticity, validity and effect of proxies;

(b)  Receive votes, ballots or consents;

(c)  Hear and  determine  all  challenges  and  questions  in any way arising in
     connection with the right to vote;

(d)  Count and tabulate all votes or consents;

(e)  Determine when the polls shall close;

(f)  Determine the result; and

(g)  Do any other acts that may be proper to conduct  the  election or vote with
     fairness to all shareholders.


                                   ARTICLE III
                                    TRUSTEES

SECTION 1.  POWERS

Subject to the applicable  provisions of the Declaration of Trust, these Bylaws,
and  applicable  laws  relating  to  action  required  to  be  approved  by  the
shareholders or by the outstanding shares, the business and affairs of the Trust
shall be managed and all powers shall be exercised by or under the  direction of
the Board of Trustees.

SECTION 2.  NUMBER AND QUALIFICATION OF TRUSTEES

The authorized number of trustees shall be not less than three (3) nor more than
fifteen (15) until  changed by a duly adopted  amendment to the  Declaration  of
Trust and these Bylaws.  The selection and nomination of disinterested  trustees
is committed  solely to the discretion of a Nominating  Committee  consisting of
all  sitting  disinterested  trustees  except  where the  remaining  trustee  or
trustees are interested persons.

SECTION 3.  MANDATORY RETIREMENT

Disinterested  trustees  shall  retire when they reach the age of  seventy-three
(73) years;  provided,  however, the remaining  disinterested trustees may waive
the mandatory  retirement  provision expressed herein for a period not to exceed
two years.

SECTION 4.  VACANCIES

Vacancies in the Board of Trustees may be filled by a majority of the  remaining
trustees,  though less than a quorum, or by a sole remaining trustee, unless the
Board of Trustees calls a meeting of  shareholders  for the purposes of electing
trustees.  In the event  that at any time less than a majority  of the  trustees
holding  office at that time were so elected by the  holders of the  outstanding
voting  securities of the Trust,  the Board of Trustees shall forthwith cause to
be held


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as promptly as  possible,  and in any event within sixty (60) days, a meeting of
such holders for the purpose of electing trustees to fill any existing vacancies
in the Board of Trustees,  unless such period is extended by order of the United
States Securities and Exchange Commission.

SECTION 5.  PLACE OF MEETINGS AND MEETINGS BY TELEPHONE

All meetings of the Board of Trustees may be held at any place within or outside
The Commonwealth of Massachusetts  that has been designated from time to time by
resolution of the Board. In the absence of such a designation,  regular meetings
shall be held at the  principal  executive  office of the  Trust.  Any  meeting,
regular or special, may be held by conference telephone or similar communication
equipment,  so long as all  trustees  participating  in the meeting can hear one
another  and all such  trustees  shall be deemed to be  present in person at the
meeting;  PROVIDED  THAT, in accordance  with the  provisions of the  Investment
Company Act of 1940,  the Board may not  transact by such a meeting any business
which  involves the entering into, or the approval,  performance,  or renewal of
any contract or agreement, whereby a person undertakes regularly to serve or act
as the Trust's investment advisor or principal underwriter.

SECTION 6.  REGULAR MEETINGS

Regular  meetings of the Board of Trustees  shall be held  without  call at such
time as shall from time to time be fixed by the Board of Trustees.  Such regular
meetings may be held without notice.

SECTION 7.  SPECIAL MEETINGS

Special  meetings  of the Board of Trustees  for any purpose or purposes  may be
called at any time by the  Chairman  of the Board or the  President  or any Vice
President or the Secretary or any two (2) trustees.

Notice of the time and place of special  meetings shall be delivered  personally
or by telephone to each trustee or sent by  first-class  mail, by facsimile,  or
electronic mail,  charges  prepaid,  addressed to each trustee at that trustee's
address  as it is shown on the  records  of the  Trust.  In case the  notice  is
mailed,  it shall be deposited in the United  States mail at least four (4) days
before the time of the holding of the  meeting.  In case the notice is delivered
personally, by telephone, by facsimile delivery, or by electronic mail, it shall
be given at least  forty-eight  (48) hours before the time of the holding of the
meeting.  Any oral notice given  personally or by telephone may be  communicated
either to the trustee or to a person at the office of the trustee who the person
giving the notice has reason to  believe  will  promptly  communicate  it to the
trustee.  The notice need not specify the purpose of the meeting or the place if
the meeting is to be held at the principal executive office of the Trust.

SECTION 8.  QUORUM

A majority of the number of trustees (as fixed in accordance with the provisions
of the  Declaration of Trust) shall  constitute a quorum for the  transaction of
business, except to adjourn as provided in Section 10 of this Article III. Every
act or decision done or made by a majority of the trustees  present at a meeting
duly held at which a quorum is present shall be regarded as the act of the Board
of Trustees, subject to the provisions of the Declaration of Trust. A meeting at
which  a  quorum  is  initially   present  may  continue  to  transact  business
notwithstanding the


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withdrawal of trustees if any action taken is approved by at least a majority of
the required quorum for that meeting.

SECTION 9.  WAIVER OF NOTICE

Notice of any  meeting  need not be given to any  trustee  who either  before or
after the  meeting  signs a written  waiver of notice,  a consent to holding the
meeting or an approval of the minutes.  The waiver of notice of consent need not
specify the purpose of the meeting.  All such  waivers,  consents and  approvals
shall be filed with the  records  of the Trust or made a part of the  minutes of
the meeting.  Notice of a meeting  shall also be deemed given to any trustee who
attends the meeting without protesting before or at its commencement the lack of
notice to that trustee.

SECTION 10.  ADJOURNMENT

A majority of the trustees  present,  whether or not constituting a quorum,  may
adjourn any meeting to another time and place.

SECTION 11.  NOTICE OF ADJOURNMENT

Notice of the time and place of holding an  adjourned  meeting need not be given
unless the meeting is adjourned for more than  forty-eight  (48) hours, in which
case  notice  of the  time and  place  shall  be  given  before  the time of the
adjourned  meeting in the manner  specified  in Section 6 of this Article III to
the trustees who were present at the time of the adjournment.

SECTION 12.  ACTION WITHOUT A MEETING

Any action  required or  permitted  to be taken by the Board of Trustees  may be
taken  without a meeting if a majority  of the  members of the Board of Trustees
shall individually or collectively  consent in writing to that action;  PROVIDED
THAT,  in  accordance  with the  Investment  Company Act of 1940,  such  written
consent does not approve the entering into, or the renewal or performance of any
contract or agreement,  whereby a person undertakes regularly to serve or act as
the Trust's  investment  advisor or principal  underwriter.  Any other action by
written  consent  shall have the same force and effect as a majority vote of the
Board of  Trustees.  Written  consents  shall be filed  with the  minutes of the
proceedings of the Board of Trustees.

SECTION 13.  FEES AND COMPENSATION OF TRUSTEES

Trustees and members of committees  may receive such  compensation,  if any, for
their services and such  reimbursement of expenses as may be fixed or determined
by resolution  of the Board of Trustees.  This Section 12 shall not be construed
to preclude  any  trustee  from  serving  the Trust in any other  capacity as an
officer,  agent,  employee or otherwise  and  receiving  compensation  for those
services.


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                                   ARTICLE IV
                                   COMMITTEES

SECTION 1.  COMMITTEES OF TRUSTEES

The Board of Trustees may by resolution  adopted by a majority of the authorized
number of trustees designate one or more committees,  each consisting of two (2)
or more trustees, to serve at the pleasure of the Board. The Board may designate
one or more  trustees as alternate  members of any committee who may replace any
absent  member at any  meeting of the  committee.  Any  committee  to the extent
provided in the resolution of the Board,  shall have the authority of the Board,
except with respect to:

(a)  the  approval  of any  action  which  under  applicable  law also  requires
     shareholders'  approval or approval of the outstanding  shares, or requires
     approval  by a  majority  of the entire  Board or  certain  members of said
     Board;

(b)  the filling of vacancies on the Board of Trustees or in any committee;

(c)  the fixing of  compensation  of the  trustees  for  serving on the Board of
     Trustees or on any committee;

(d)  the amendment or repeal of the Declaration of Trust or of the Bylaws or the
     adoption of new Bylaws;

(e)  the amendment or repeal of any resolution of the Board of Trustees which by
     its express terms is not so amendable or repealable; or

(f)  the  appointment  of any other  committees  of the Board of Trustees or the
     members of these committees.

SECTION 2.  MEETINGS AND ACTION OF COMMITTEES

Meetings  and action of  committees  shall be  governed by and held and taken in
accordance with the provisions of Article III of these Bylaws, with such changes
in the context  thereof as are  necessary to  substitute  the  committee and its
members  for the Board of  Trustees  and its  members,  except  that the time of
regular  meetings of committees  may be  determined  either by resolution of the
Board of  Trustees  or by  resolution  of the  committee.  Special  meetings  of
committees may also be called by resolution of the Board of Trustees, and notice
of special meetings of committees  shall also be given to all alternate  members
who shall have the right to attend all meetings of the  committee.  The Board of
Trustees may adopt rules for the  government of any  committee not  inconsistent
with the provisions of these Bylaws.


                                    ARTICLE V
                                    OFFICERS

SECTION 1.  OFFICERS

The officers of the Trust shall be a President,  a Secretary,  a Chief Financial
Officer, a Chief Compliance Officer and a Treasurer. The Trust may also have, at
the  discretion of the Board of Trustees,  one or more Vice  Presidents,  one or
more Assistant  Secretaries,  one or more Assistant



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Treasurers,  and such other officers as may be appointed in accordance  with the
provisions  of Section 3 of this Article V. Any number of offices may be held by
the same person.

SECTION 2.  ELECTION OF OFFICERS

The  officers  of the  Trust,  except  such  officers  as may  be  appointed  in
accordance  with the  provisions  of Section 3 or  Section 5 of this  Article V,
shall be chosen by the Board of  Trustees,  and each shall serve at the pleasure
of the Board of Trustees, subject to the rights, if any, of an officer under any
contract of employment.

SECTION 3.  SUBORDINATE OFFICERS

The Board of Trustees may appoint and may empower the  President to appoint such
other officers as the business of the Trust may require, each of whom shall hold
office for such  period,  have such  authority  and  perform  such duties as are
provided  in these  Bylaws  or as the  Board of  Trustees  may from time to time
determine.

SECTION 4.  REMOVAL AND RESIGNATION OF OFFICERS

Subject to the rights,  if any, of an officer under any contract of  employment,
any  officer  may be  removed,  either  with or without  cause,  by the Board of
Trustees at any regular or special meeting of the Board of Trustees or except in
the case of an officer  upon whom such power of removal may be  conferred by the
Board of Trustees.

Any officer may resign at any time by giving  written  notice to the Trust.  Any
resignation  shall take  effect at the date of the  receipt of that notice or at
any later time specified in that notice; and unless otherwise  specified in that
notice,  the  acceptance  of the  resignation  shall not be necessary to make it
effective.  Any resignation is without  prejudice to the rights,  if any, of the
Trust under any contract to which the officer is a party.

SECTION 5.  VACANCIES IN OFFICES

A vacancy in any office because of death, resignation, removal, disqualification
or other  cause  shall be filled in the manner  prescribed  in these  Bylaws for
regular appointment to that office.

SECTION 6.  CHAIRMAN OF THE BOARD

The Chairman of the Board shall, if present, preside at meetings of the Board of
Trustees  and  exercise  and perform such other powers and duties as may be from
time to time  assigned  to him by the Board of  Trustees  or  prescribed  by the
Bylaws.

SECTION 7.  PRESIDENT

Subject  to such  supervisory  powers,  if any,  as may be given by the Board of
Trustees to the  Chairman of the Board,  the  President  shall be the  principal
executive  officer and the principal  operating  officer of the Trust and shall,
subject to control of the Board of Trustees, have general supervision, direction
and control of the business and the officers of the Trust.  He shall  preside at
all shareholder  meetings and, in the absence of the Chairman of the Board or if
there be none,  at all  meetings  of the Board of  Trustees.  He shall  have the
general  powers  and  duties  of


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management  usually vested in the office of President of a corporation and shall
have such other powers and duties as may be  prescribed by the Board of Trustees
or these Bylaws.

SECTION 8.  VICE PRESIDENTS

In the absence or disability of the President,  the Vice Presidents,  if any, in
order of their rank as fixed by the Board of Trustees  or if not ranked,  a Vice
President  designated by the Board of Trustees,  shall perform all the duties of
the  President and when so acting shall have all powers of and be subject to all
the restrictions  upon the President.  The Vice Presidents shall have such other
powers and perform such other duties as from time to time may be prescribed  for
them  respectively by the Board of Trustees or by these Bylaws and the president
or the Chairman of the Board.

SECTION 9.  SECRETARY

The Secretary shall keep or cause to be kept at the principal  executive  office
of the Trust or such other place as the Board of  Trustees  may direct a book of
minutes of all  meetings  and actions of  trustees,  committees  of trustees and
shareholders with the time and place of holding, whether regular or special, and
if special,  how  authorized,  the notice  given,  the names of those present at
trustees'  meetings  or  committee  meetings,  the  number of shares  present or
represented at shareholders' meetings and the proceedings.

The Secretary shall keep or cause to be kept at the principal  executive  office
of the Trust or at the office of the Trust's  transfer  agent or  registrar,  as
determined  by  resolution  of the  Board of  Trustees,  a share  register  or a
duplicate  share  register  showing  the  names of all  shareholders  and  their
addresses, the number and classes of shares held by each, the number and date of
certificates  issued  for the same and the number  and date of  cancellation  of
every certificate surrendered for cancellation.

The  Secretary  shall give or cause to be given  notice of all  meetings  of the
shareholders and the Board of Trustees required by these Bylaws or by applicable
law to be given and shall have such other  powers and perform  such other duties
as may be prescribed by the Board of Trustees or by these Bylaws.

SECTION 10.  CHIEF FINANCIAL OFFICER

The Chief  Financial  Officer  shall be the principal  financial and  accounting
officer  of the  Trust  and  shall  keep  and  maintain  or cause to be kept and
maintained  adequate and correct books and records of accounts of the properties
and  business  transactions  of the Trust,  including  accounts  of its  assets,
liabilities, receipts, disbursements,  gains, losses, capital, retained earnings
and  shares.  The  books of  account  shall at all  reasonable  times be open to
inspection by any trustee.

The Chief Financial  Officer shall deposit all monies and other valuables in the
name and to the credit of the Trust with such  depositories as may be designated
by the Board of  Trustees.  He shall  disburse  the funds of the Trust as may be
ordered by the Board of Trustees,  shall render to the  president  and trustees,
whenever  they  request  it,  an  account  of all of his  transactions  as Chief
Financial  Officer and of the  financial  condition  of the Trust and shall have
other powers and perform such other duties as may be  prescribed by the Board of
Trustees or these Bylaws.


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SECTION 11.  CHIEF COMPLIANCE OFFICER

The  Chief  Compliance  Officer  shall be the  principal  officer  of the  Trust
responsible for administering its compliance policies and procedures.  The Chief
Compliance  Officer  shall have the power to develop  and enforce  policies  and
procedures   reasonably  designed  to  prevent  the  Trust  from  violating  the
securities laws applicable to its operations. The Chief Compliance Officer shall
serve at the  pleasure of the Trustees  and reports  directly to the Trust.  The
Chief  Compliance  Officer  shall have such other  powers and perform such other
duties as may be  prescribed  by the  Trustees,  these  Bylaws,  or the  federal
securities laws.


                                   ARTICLE VI
        INDEMNIFICATION OF TRUSTEES, OFFICERS, EMPLOYEES AND OTHER AGENTS

SECTION 1. INDEMNIFICATION

The Trust shall  indemnify  any  individual  ("Indemnitee")  who is a present or
former  trustee,  officer,  employee,  or agent of the  Trust,  or who,  while a
trustee,  officer,  employee,  or agent of the Trust,  is or was  serving at the
request  of the  Trust as a  trustee,  officer,  partner,  employee  or agent of
another  foreign or domestic  corporation,  partnership,  joint venture,  trust,
other  enterprise  or employee  benefit plan who, by reason of his position was,
is, or is threatened to be made a party to any threatened, pending, or completed
action,  suit  or  proceeding,  whether  civil,  criminal,   administrative,  or
investigative  (hereinafter  collectively referred to as a "Proceeding") against
any  judgments,  penalties,  fines,  amounts  paid in  settlement,  and expenses
(including  attorneys' fees) actually and reasonably incurred by such Indemnitee
in  connection   with  any   Proceeding,   to  the  fullest   extent  that  such
indemnification  may be lawful under  Massachusetts law. The Trust shall pay any
reasonable  expenses so incurred by such Indemnitee in defending a Proceeding in
advance of the final disposition thereof to the fullest extent that such advance
payment  may be  lawful  under  Massachusetts  law.  Subject  to any  applicable
limitations and requirements  set forth in the Trust's  Declaration of Trust and
in these By-laws, any payment of indemnification or advance of expenses shall be
made in accordance with the procedures set forth in Massachusetts law.

SECTION 2. "DISABLING CONDUCT"

Anything  in this  Article  to the  contrary  notwithstanding,  nothing  in this
Article shall protect or purport to protect any Indemnitee against any liability
to the Trust or its stockholders,  whether or not there has been an adjudication
of  liability,  to which he would  otherwise  be  subject  by reason of  willful
misfeasance,  bad faith,  gross negligence,  or reckless disregard of the duties
involved in the conduct of his office ("Disabling Conduct").

SECTION 3. CONDITIONS FOR INDEMNIFICATION

Anything in this Article to the  contrary  notwithstanding,  no  indemnification
shall be made by the Trust to any Indemnitee unless:

(a)  there is a final  decision  on the merits by a court or other  body  before
     whom the  Proceeding  was  brought  that the  Indemnitee  was not liable by
     reason of Disabling Conduct; or


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(b)  in the absence of such decision,  the Trustees,  based upon a review of the
     facts,  forms a  reasonable  belief that the  Indemnitee  was not liable by
     reason of Disabling Conduct, which reasonable belief may be formed:

     (i)  by the vote of a  majority  of a quorum of  trustees  who are  neither
          "interested  persons"  of the Trust as defined in Article  2(a)(19) of
          the Investment Company Act, nor parties to the Proceeding; or

     (ii) based on a written opinion of independent legal counsel.

SECTION 4. ADVANCE OF EXPENSES

Anything  in this  Article  to the  contrary  notwithstanding,  any  advance  of
expenses by the Trust to any Indemnitee  shall be made only upon the undertaking
by such Indemnitee to repay the advance unless it is ultimately  determined that
such Indemnitee is entitled to  indemnification  as above provided,  and only if
the Trustees:

(a)  obtains  assurances  that  the  advance  will be  repaid  by (A) the  Trust
     receiving  collateral  from the Indemnitee  for his  undertaking or (B) the
     Trust  obtaining  insurance  against losses arising by reason of any lawful
     advances; or

(b)  has a reasonable  belief that the  Indemnitee  has not engaged in Disabling
     Conduct and will  ultimately be found  entitled to  indemnification,  which
     reasonable belief may be formed:

     (i)  by a majority  of a quorum of  trustees  who are  neither  "interested
          persons" of the Trust as defined in Article 2(a)(19) of the Investment
          Company Act, nor parties to the Proceeding; or

     (ii) based upon a written  opinion of an independent  legal counsel that in
          turn is based on counsel's  review of readily  available  facts (which
          review shall not require a full trial-type inquiry).

SECTION 5. RIGHTS NOT EXCLUSIVE

The indemnification and advancement of expenses provided by, or granted pursuant
to, this  Article  shall not be deemed  exclusive  of any other  rights to which
those seeking  indemnification  or advancement of expenses may be entitled under
any law, bylaw,  agreement,  vote of stockholders or  disinterested  trustees or
otherwise, both as to action in such person's official capacity and as to action
in another capacity while holding such office.

SECTION 6. SURVIVAL

The indemnification and advancement of expenses provided by, or granted pursuant
to, this Article shall,  unless otherwise  provided when authorized or ratified,
continue as to an Indemnitee who has ceased to be a trustee,  officer,  employee
or  agent  and  shall  inure  to  the  benefit  of  the  heirs,   executors  and
administrators of such an Indemnitee.

SECTION 7. DEFINITIONS

For purposes of this Article,  references to (i) the "Trust" shall  include,  in
addition  to  the  resulting  trust,   any  constituent   trust  (including  any
constituent of a constituent)  absorbed in a


                                                                         page 12


AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


consolidation  or merger which, if its separate  existence had continued,  would
have had power and authority to indemnify its trustees,  officers, and employees
or agents so that any person who is or was a trustee, officer, employee or agent
of  such  constituent  trust,  or is or was  serving  at  the  request  of  such
constituent  trust as a trustee,  officer,  employee or agent of another  trust,
partnership,  joint venture, trust or other enterprise,  shall stand in the same
position  under the  provisions of this Article with respect to the resulting or
surviving trust as such person would have with respect to such constituent trust
if its separate  existence had continued;  (ii) "fines" shall include any excise
taxes  assessed on a person with respect to an employee  benefit plan; and (iii)
"serving at the request of the "Trust"  shall  include any service as a trustee,
officer,  employee  or agent of the Trust which  imposes  duties on, or involves
service by, such trustee, officer, employee or agent with respect to an employee
benefit plan, its participants or beneficiaries.

SECTION 8. INSURANCE

To the fullest extent permitted by applicable  Massachusetts law and by Sections
17(h) and 17(i) of the  Investment  Company  Act,  or any  successor  provisions
thereto or  interpretations  thereunder,  the Trust may  purchase  and  maintain
insurance on behalf of any person who is or was a trustee, officer, employee, or
agent of the Trust,  or who is or was  serving at the  request of the Trust as a
trustee,  officer,  partner,  employee,  or agent of another foreign or domestic
corporation,  partnership,  joint venture, trust, other enterprise,  or employee
benefit plan,  against any liability asserted against him and incurred by him in
any such capacity or arising out of his position, whether or not the Trust would
have the power to indemnify him against such liability.

SECTION 9. FIDUCIARIES OF EMPLOYEE BENEFIT PLAN

This Article does not apply to any  proceeding  against any trustee,  investment
manager or other fiduciary of an employee benefit plan in that person's capacity
as such,  even  though that person may also be an agent of this Trust as defined
in Section 1 of this Article.  Nothing contained in this Article shall limit any
right to  indemnification  to which such a trustee,  investment manager or other
fiduciary may be entitled by contract or otherwise which shall be enforceable to
the extent permitted by applicable law other than this Article.


                                   ARTICLE VII
                               RECORDS AND REPORTS

SECTION 1.  MAINTENANCE AND INSPECTION OF SHARE REGISTER

This Trust shall keep at its principal  executive office or at the office of its
transfer  agent or  registrar,  if  either be  appointed  and as  determined  by
resolution of the Board of Trustees,  a record of its  shareholders,  giving the
names and addresses of all shareholders and the number and series of shares held
by each shareholder.

SECTION 2.  MAINTENANCE AND INSPECTION OF BYLAWS

The Trust shall keep at is principal  executive office the original or a copy of
these  Bylaws as  amended  to date,  which  shall be open to  inspection  by the
shareholders at all reasonable times during office hours.


                                                                         page 13


AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


SECTION 3.  MAINTENANCE AND INSPECTION OF OTHER RECORDS

The accounting  books and records and minutes of proceedings of the shareholders
and the  Board of  Trustees  and any  committee  or  committees  of the Board of
Trustees  shall  be kept at such  place or  places  designated  by the  Board of
Trustees  or in the  absence of such  designation,  at the  principal  executive
office  of the  Trust.  The  minutes  shall  be kept  in  written  form  and the
accounting  books and  records  shall be kept  either in written  form or in any
other form  capable of being  converted  into  written  form.  The  minutes  and
accounting books and records shall be open to inspection upon the written demand
of any  shareholder  or holder of a voting trust  certificate  at any reasonable
time  during  usual  business  hours for a  purpose  reasonably  related  to the
holder's  interests  as a  shareholder  or  as  the  holder  of a  voting  trust
certificate. The inspection may be made in person or by an agent or attorney and
shall include the right to copy and make extracts.

SECTION 4.  INSPECTION BY TRUSTEES

Every trustee shall have the absolute  right at any  reasonable  time to inspect
all books,  records,  and documents of every kind and the physical properties of
the Trust.  This inspection by a trustee may be made in person or by an agent or
attorney  and the  right  of  inspection  includes  the  right  to copy and make
extracts of documents.

SECTION 5.  FINANCIAL STATEMENTS

A copy of any  financial  statements  and any income  statement of the Trust for
each quarterly period of each fiscal year and accompanying  balance sheet of the
Trust as of the end of each  such  period  that has been  prepared  by the Trust
shall be kept on file in the  principal  executive  office  of the  Trust for at
least  twelve  (12) months and each such  statement  shall be  exhibited  at all
reasonable  times  to any  shareholder  demanding  an  examination  of any  such
statement or a copy shall be mailed to any such shareholder.

The quarterly  income  statements and balance sheets referred to in this section
shall be  accompanied  by the  report,  if any, of any  independent  accountants
engaged by the Trust or the  certificate  of an authorized  officer of the Trust
that the financial  statements  were  prepared  without audit from the books and
records of the Trust.


                                  ARTICLE VIII
                                 GENERAL MATTERS

SECTION 1.  CHECKS, DRAFTS, EVIDENCE OF INDEBTEDNESS

All  checks,  drafts,  or other  orders  for  payment  of money,  notes or other
evidences of indebtedness issued in the name of or payable to the Trust shall be
signed or  endorsed by such person or persons and in such manner as from time to
time shall be determined by resolution of the Board of Trustees.

SECTION 2.  CONTRACTS AND INSTRUMENTS; HOW EXECUTED

The Board of  Trustees,  except  as  otherwise  provided  in these  Bylaws,  may
authorize any officer or officers,  agent or agents,  to enter into any contract
or  execute  any  instrument  in the name of and on behalf of the Trust and this
authority  may be general  or  confined  to  specific  instances;  and



                                                                         page 14


AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


unless so  authorized  or ratified by the Board of Trustees or within the agency
power of an officer,  no  officer,  agent,  or employee  shall have any power or
authority  to bind the Trust by any  contract  or  engagement  or to pledge  its
credit or to render it liable for any purpose or for any amount.

SECTION 3.  CERTIFICATES FOR SHARES

At the discretion of the Trustees,  a certificate or certificates  for shares of
beneficial interest in any series of the trust may be issued to each shareholder
when any of these shares are fully paid. All certificates shall be signed in the
name  of the  Trust  by the  chairman  of the  board  or the  president  or vice
president and by the chief  financial  officer or an assistant  treasurer or the
secretary or any assistant  secretary,  certifying  the number of shares and the
series of shares owned by the shareholders.  Any or all of the signatures on the
certificate may be facsimile. In case any officer,  transfer agent, or registrar
who has signed or whose  facsimile  signature  has been  place on a  certificate
shall have ceased to be that officer,  transfer agent, or registrar  before that
certificate is issued,  it may be issued by the Trust with the same effect as if
that person were an officer,  transfer  agent or registrar at the date of issue.
Notwithstanding the foregoing, the Trust may adopt and use a system of issuance,
recordation and transfer of its shares by electronic or other means.

SECTION 4.  LOST CERTIFICATES

Except as provided in this  Section 4, no new  certificates  for shares shall be
issued to replace an old  certificate  unless the latter is  surrendered  to the
Trust and  cancelled  at the same time.  The Board of  Trustees  may in case any
share  certificate or certificate  for any other  security is lost,  stolen,  or
destroyed, authorize the issuance of a replacement certificate on such terms and
conditions  as the Board of Trustees  may  require,  including  a provision  for
indemnification  of the  Trust  secured  by a bond or  other  adequate  security
sufficient  to protest the Trust  against any claim that may be made against it,
including  any expense or liability on account of the alleged  loss,  theft,  or
destruction of the certificate or the issuance of the replacement certificate.

SECTION 5.  UNCERTIFICATED SHARES

Unless determined otherwise by the Trustees, the Trust shall issue shares of any
or all series in uncertificated  form;  provided,  however,  the Trust may issue
certificates to the holders of shares of a series which was originally issued in
uncertificated  form, and if it has issued shares of any series in  certificated
form, they may at any time  discontinue the issuance of share  certificates  for
such  series and may,  by written  notice to such  shareholders  of such  series
require  the   surrender  of  their  shares   certificates   to  the  Trust  for
cancellation, which surrender and cancellation shall not affect the ownership of
shares for such series.

For  any  series  of  shares  for  which  the  trustees   issue  shares  without
certificates, the Trust, or any transfer agent selected by the Trust, may either
issue  receipts  therefore or may keep  accounts upon the books of the Trust for
the record holders of such shares,  who shall in either case be deemed,  for all
purposes  hereunder  to be the  holders of such  shares as if they had  received
certificates  therefore and shall be held to have expressly  assented and agreed
to the terms hereof and of the Declaration of Trust.


                                                                         page 15


AMERICAN CENTURY TARGET MATURITIES TRUST                                  BYLAWS
--------------------------------------------------------------------------------


SECTION 6.  REPRESENTATION OF SHARES OF OTHER ENTITIES

The  Chairman of the Board,  the  President  or any Vice  President or any other
person  authorized  by  resolution  of the  Board of  Trustees  or by any of the
foregoing designated officers,  is authorized to vote on behalf of the Trust any
and all shares of any  corporation or  corporations,  partnerships,  trusts,  or
other  entities,  foreign or  domestic,  standing in the name of the Trust.  The
authority  granted to these officers to vote or represent on behalf of the Trust
any and all shares held by the Trust in any form of entity may be  exercised  by
any of these officers in person or by any person  authorized to do so by a proxy
duly executed by these officers.


                                   ARTICLE IX
                                   AMENDMENTS

SECTION 1.  AMENDMENT BY SHAREHOLDERS

These Bylaws may be amended or repealed, in whole or in part, at any time by the
affirmative  vote or written  consent of a majority  of the  outstanding  shares
issued and entitled to vote,  except as otherwise  provided by applicable law or
by the Declaration of Trust or these Bylaws.

SECTION 2.  AMENDMENT BY TRUSTEES

Subject to the right of shareholders as provided in Section 1 of this Article to
adopt,  amend or repeal Bylaws,  and except as otherwise  provided by applicable
law or by the  Declaration of Trust,  these Bylaws may be adopted,  amended,  or
repealed, in whole or in part, at any time by the Board of Trustees.


                                                                         page 16






                                                                     EXHIBIT (d)


                    AMERICAN CENTURY TARGET MATURITIES TRUST

                              MANAGEMENT AGREEMENT

     This  MANAGEMENT  AGREEMENT  ("Agreement")  is  made  as of the  1St day of
August,  2007  by and  between  AMERICAN  CENTURY  TARGET  MATURITIES  TRUST,  a
Massachusetts  business trust and registered investment company (the "Company"),
and AMERICAN CENTURY INVESTMENT  MANAGEMENT,  INC., a Delaware  corporation (the
"Investment Manager").

     WHEREAS,  a  majority  of those  members  of the Board of  Trustees  of the
Company (collectively, the "Board of Directors", and each Trustee individually a
"Director")  who are not "interested  persons" as defined in Investment  Company
Act (hereinafter  referred to as the "Independent  Directors"),  during its most
recent annual evaluation of the terms of the Agreement pursuant to Section 15(c)
of the Investment  Company Act, has approved the continuance of the Agreement as
it  relates  to each  series of shares of the  Company  set forth on  Schedule B
attached hereto (the "Funds").

     NOW,  THEREFORE,  IN  CONSIDERATION  of the mutual  promises and agreements
herein contained, the parties agree as follows:

1.   INVESTMENT MANAGEMENT SERVICES.  The Investment Manager shall supervise the
     investments  of each Fund. In such capacity,  the Investment  Manager shall
     maintain a continuous investment program for each such Fund, determine what
     securities  shall be  purchased  or sold by each Fund,  secure and evaluate
     such  information as it deems proper and take whatever  action is necessary
     or convenient to perform its  functions,  including the placing of purchase
     and sale orders.

2.   COMPLIANCE  WITH LAWS. All functions  undertaken by the Investment  Manager
     hereunder  shall at all times  conform to, and be in accordance  with,  any
     requirements imposed by:

     (a)  the Investment  Company Act and any rules and regulations  promulgated
          thereunder;

     (b)  any other applicable provisions of law;

     (c)  the Declaration of Trust of the Company as amended from time to time;

     (d)  the By-Laws of the Company as amended from time to time;

     (e)  the Multiple Class Plan; and

     (f)  the registration  statement(s) of the Company, as amended from time to
          time,  filed  under  the  Securities  Act of 1933  and the  Investment
          Company Act.

3.   BOARD  SUPERVISION.  All  of the  functions  undertaken  by the  Investment
     Manager  hereunder  shall at all times be subject to the  direction  of the
     Board of Directors,  its executive committee,  or any committee or officers
     of the Company acting under the authority of the Board of Directors.

4.   PAYMENT OF EXPENSES.  The  Investment  Manager will pay all the expenses of
     each class of each Fund that it shall manage,  other than interest,  taxes,
     brokerage  commissions,  portfolio insurance,  extraordinary  expenses, the
     fees and expenses of the Independent  Directors  (including  counsel fees),
     and expenses  incurred in  connection  with the  provision  of  shareholder
     services and  distribution  services under a plan adopted  pursuant to Rule
     12b-1 under the Investment Company Act. The Investment Manager will provide
     the Company with all physical facilities and personnel


                                                                          Page 1


                                        AMERICAN CENTURY TARGET MATURITIES TRUST


     required to carry on the  business of each class of each Fund that it shall
     manage,  including  but not  limited  to office  space,  office  furniture,
     fixtures and equipment, office supplies, computer hardware and software and
     salaried  and hourly  paid  personnel.  The  Investment  Manager may at its
     expense  employ  others to provide all or any part of such  facilities  and
     personnel.

5.   ACCOUNT FEES.  The Board of Directors  may impose fees for various  account
     services,  proceeds of which may be remitted to the appropriate Fund or the
     Investment Manager at the discretion of the Board of Directors. At least 60
     days' prior  written  notice of the intent to impose such fee must be given
     to the shareholders of the affected series.

6.   MANAGEMENT FEES.

     (a)  In consideration of the services  provided by the Investment  Manager,
          each class of a Fund shall pay to the Investment  Manager a management
          fee that is  calculated  as  described in this Section 6 using the fee
          schedules described herein.

     (b)  Definitions

          (1)  An  "INVESTMENT   TEAM"  is  the  Portfolio   Managers  that  the
               Investment Manager has designated to manage a given portfolio.

          (2)  An   "INVESTMENT   STRATEGY"  is  the   processes   and  policies
               implemented by the  Investment  Manager for pursuing a particular
               investment objective managed by an Investment Team.

          (3)  A "PRIMARY STRATEGY PORTFOLIO" is each Fund, as well as any other
               series of any other registered  investment  company for which the
               Investment Manager serves as the investment manager and for which
               American  Century  Investment   Services,   Inc.  serves  as  the
               distributor;  provided,  however,  that a  registered  investment
               company  that  invests  its assets  exclusively  in the shares of
               other  registered  investment  companies  shall  not be a Primary
               Strategy  Portfolio.  Any  exceptions  to the above  requirements
               shall be approved by the Board of Directors.

          (4)  A "SECONDARY  STRATEGY  PORTFOLIO" is another  account managed by
               the  Investment  Manager  that is managed by the same  Investment
               Team as that  assigned to manage any Primary  Strategy  Portfolio
               that shares the same board of  directors  or board of trustees as
               the Company. Any exceptions to this requirement shall be approved
               by the Board of Directors.

          (5)  An  "INVESTMENT  CATEGORY"  for a Fund is the  group to which the
               Fund is  assigned  for  determining  the first  component  of its
               management  fee. Each Primary  Strategy  Portfolio is assigned to
               one of the  three  Investment  Categories  indicated  below.  The
               Investment Category  assignments for the Funds appear in Schedule
               B to  this  Agreement.  The  amount  of  assets  in  each  of the
               Investment   Categories   ("INVESTMENT   CATEGORY   ASSETS")   is
               determined as follows:

               a)   MONEY MARKET FUND CATEGORY ASSETS. The assets which are used
                    to determine the fee for this Investment Category is the sum
                    of the assets of all of the Primary Strategy  Portfolios and
                    Secondary Strategy  Portfolios



                                                                          Page 2


                                        AMERICAN CENTURY TARGET MATURITIES TRUST


                    that invest  primarily in debt securities and are subject to
                    Rule 2a-7 under the Investment Company Act.

               b)   BOND FUND  CATEGORY  ASSETS.  The  assets  which are used to
                    determine  the fee for this  Investment  Category is the sum
                    the assets of all of the  Primary  Strategy  Portfolios  and
                    Secondary Strategy  Portfolios that invest primarily in debt
                    securities  and  are not  subject  to Rule  2a-7  under  the
                    Investment Company Act.

               c)   EQUITY FUND  CATEGORY  ASSETS.  The assets which are used to
                    determine  the fee for this  Investment  Category is the sum
                    the assets of all of the  Primary  Strategy  Portfolios  and
                    Secondary  Strategy  Portfolios  that  invest  primarily  in
                    equity securities.

          (6)  The "PER ANNUM INVESTMENT  CATEGORY FEE DOLLAR AMOUNT" for a Fund
               is the dollar  amount  resulting  from  applying  the  applicable
               Investment  Category  Fee  Schedule  for the  Fund  (as  shown on
               Schedule A) using the applicable Investment Category Assets.

          (7)  The "PER  ANNUM  INVESTMENT  CATEGORY  FEE  RATE" for Fund is the
               percentage   rate  that  results  from  dividing  the  Per  Annum
               Investment  Category  Fee  Dollar  Amount  for  the  Fund  by the
               applicable Investment Category Assets for the Fund.

          (8)  The  "COMPLEX  ASSETS"  is the  sum of the  assets  in all of the
               Primary Strategy Portfolios.

          (9)  The "PER ANNUM  COMPLEX FEE DOLLAR  AMOUNT" for a class of a Fund
               shall be the dollar  amount  resulting  from  application  of the
               Complex Assets to the Complex Fee Schedule for the class as shown
               in Schedule C.

          (10) The "PER  ANNUM  COMPLEX  FEE  RATE" for a class of a Fund is the
               percentage  rate that results from dividing the Per Annum Complex
               Fee Dollar Amount for the class of a Fund by the Complex Assets.

          (11) The "PER ANNUM  MANAGEMENT FEE RATE" for a class of a Fund is the
               sum of the Per Annum  Investment  Category Fee Rate applicable to
               the Fund and the Per Annum  Complex  Fee Rate  applicable  to the
               class of the Fund.

     (c)  DAILY MANAGEMENT FEE CALCULATION. For each calendar day, each class of
          each Fund shall accrue a fee calculated by  multiplying  the Per Annum
          Management  Fee Rate for that class  times the net assets of the class
          on that day,  and further  dividing  that  product by 365 (366 in leap
          years).

     (d)  MONTHLY  MANAGEMENT  FEE  PAYMENT.  On the first  business day of each
          month,  each class of each series Fund shall pay the management fee to
          the  Investment  Manager  for  the  previous  month.  The  fee for the
          previous  month  shall  be  the  sum  of  the  Daily   Management  Fee
          Calculations for each calendar day in the previous month.



                                                                          Page 3


                                        AMERICAN CENTURY TARGET MATURITIES TRUST


     (e)  ADDITIONAL SERIES OR CLASSES. In the event that the Board of Directors
          shall determine to issue any additional  series of shares for which it
          is proposed that the Investment  Manager serve as investment  manager,
          the Company and the Investment Manager shall enter into an Addendum to
          this Agreement setting forth the name of the series and/or classes, as
          appropriate, the Applicable Fee and such other terms and conditions as
          are applicable to the management of such series and/or classes, or, in
          the  alternative,  enter into a  separate  management  agreement  that
          relates specifically to such series or classes of shares.

7.   CONTINUATION OF AGREEMENT.  This Agreement shall become  effective for each
     Fund as of the date first set forth above and shall  continue in effect for
     each Fund until August 1, 2008,  unless sooner  terminated  as  hereinafter
     provided,  and shall  continue in effect from year to year  thereafter  for
     each Fund only as long as such  continuance  is  specifically  approved  at
     least  annually  (i) by either the Board of  Directors  or by the vote of a
     majority of the outstanding voting securities of such Fund, and (ii) by the
     vote of a majority of the  Directors,  who are not parties to the Agreement
     or interested persons of any such party, cast in person at a meeting called
     for the purpose of voting on such approval.  The annual approvals  provided
     for herein shall be effective to continue this  Agreement from year to year
     if given  within a period  beginning  not more than 90 days prior to August
     1st of each applicable  year,  notwithstanding  the fact that more than 365
     days may have elapsed since the date on which such approval was last given.

8.   TERMINATION. This Agreement may be terminated, with respect to any Fund, by
     the Investment  Manager at any time without penalty upon giving the Company
     60 days' written notice,  and may be terminated,  with respect to any Fund,
     at any time  without  penalty  by the  Board of  Directors  or by vote of a
     majority  of the  outstanding  voting  securities  of such Fund on 60 days'
     written notice to the Investment Manager.

9.   EFFECT OF ASSIGNMENT.  This Agreement  shall  automatically  terminate with
     respect  to any  Fund in the  event  of its  assignment  by the  Investment
     Manager.  The term "assignment" for this purpose having the meaning defined
     in Section 2(a)(4) of the Investment Company Act.

10.  OTHER  ACTIVITIES.  Nothing herein shall be deemed to limit or restrict the
     right of the  Investment  Manager,  or the  right  of any of its  officers,
     directors or employees (who may also be a Director,  officer or employee of
     the  Company),  to  engage  in any other  business  or to  devote  time and
     attention to the management or other aspects of any other business, whether
     of a similar or dissimilar nature, or to render services of any kind to any
     other corporation, firm, individual or association.

11.  STANDARD OF CARE. In the absence of willful  misfeasance,  bad faith, gross
     negligence, or reckless disregard of its obligations or duties hereunder on
     the part of the  Investment  Manager,  it, as an  inducement to it to enter
     into this Agreement, shall not be subject to liability to the Company or to
     any shareholder of the Company for any act or omission in the course of, or
     connected with,  rendering services hereunder or for any losses that may be
     sustained in the purchase, holding or sale of any security.

12.  SEPARATE AGREEMENT.  The parties hereto acknowledge that certain provisions
     of the Investment Company Act, in effect,  treat each series of shares of a
     registered   investment   company   as  a  separate   investment   company.
     Accordingly,  the parties hereto hereby  acknowledge and agree that, to the
     extent deemed  appropriate and consistent with the Investment  Company Act,
     this


                                                                          Page 4


                                        AMERICAN CENTURY TARGET MATURITIES TRUST


     Agreement  shall be deemed to constitute a separate  agreement  between the
     Investment Manager and each Fund.

13.  USE OF THE NAME "AMERICAN  CENTURY".  The name  "American  Century" and all
     rights to the use of the name "American Century" are the exclusive property
     of American Century Proprietary Holdings, Inc. ("ACPH"). ACPH has consented
     to, and granted a non-exclusive  license for, the use by the Company of the
     name  "American  Century"  in the name of the  Company  and any Fund.  Such
     consent and non-exclusive  license may be revoked by ACPH in its discretion
     if ACPH, the Investment  Manager, or a subsidiary or affiliate of either of
     them is not employed as the  investment  adviser of each Fund. In the event
     of such  revocation,  the  Company  and each Fund using the name  "American
     Century" shall cease using the name  "American  Century"  unless  otherwise
     consented to by ACPH or any successor to its interest in such name.

     IN WITNESS  WHEREOF,  the parties have caused this Agreement to be executed
by their  respective  duly  authorized  officers  as of the day and  year  first
written above.


                                                                          Page 5




AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.       AMERICAN CENTURY TARGET MATURITIES TRUST

/s/ Otis H. Cowan                                  /s/ Maryanne L. Roepke
----------------------------------                 ---------------------------------------
OTIS H. COWAN                                      MARYANNE L. ROEPKE
Vice President                                     Senior Vice President








AMERICAN CENTURY TARGET MATURITIES TRUST           Schedule A: Category Fee Schedules
-------------------------------------------------------------------------------------
                                   SCHEDULE A

                        INVESTMENT CATEGORY FEE SCHEDULES

MONEY MARKET FUNDS
===================== ==========================================================
                                             RATE SCHEDULES

CATEGORY ASSETS        SCHEDULE 1    SCHEDULE 2       SCHEDULE 3     SCHEDULE 4
--------------------- ------------ --------------- --------------- -------------
First $1 billion        0.2500%        0.2700%         0.3500%         0.2300%
Next $1 billion         0.2070%        0.2270%         0.3070%         0.1870%
Next $3 billion         0.1660%        0.1860%         0.2660%         0.1460%
Next $5 billion         0.1490%        0.1690%         0.2490%         0.1290%
Next $15 billion        0.1380%        0.1580%         0.2380%         0.1180%
Next $25 billion        0.1375%        0.1575%         0.2375%         0.1175%
Thereafter              0.1370%        0.1570%         0.2370%         0.1170%
===================== ============ =============== =============== =============


BOND FUNDS
================= =================================================================================================
                                                             RATE SCHEDULES

CATEGORY ASSETS   SCHEDULE 1   SCHEDULE 2   SCHEDULE 3  SCHEDULE 4   SCHEDULE 5  SCHEDULE 6  SCHEDULE 7  SCHEDULE 8
----------------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- -----------
First $1 billion    0.2800%     0.3100%      0.3600%     0.6100%      0.4100%     0.6600%     0.3800%     0.4600%
Next $1 billion     0.2280%     0.2580%      0.3080%     0.5580%      0.3580%     0.6080%     0.3280%     0.4080%
Next $3 billion     0.1980%     0.2280%      0.2780%     0.5280%      0.3280%     0.5780%     0.2980%     0.3780%
Next $5 billion     0.1780%     0.2080%      0.2580%     0.5080%      0.3080%     0.5580%     0.2780%     0.3580%
Next $15 billion    0.1650%     0.1950%      0.2450%     0.4950%      0.2950%     0.5450%     0.2650%     0.3450%
Next $25 billion    0.1630%     0.1930%      0.2430%     0.4930%      0.2930%     0.5430%     0.2630%     0.3430%
Thereafter          0.1625%     0.1925%      0.2425%     0.4925%      0.2925%     0.5425%     0.2625%     0.3425%
================= =========== ============ =========== ============ =========== =========== =========== ===========


EQUITY FUNDS
================== ===================================================================
                                             RATE SCHEDULES

CATEGORY ASSETS     SCHEDULE 1   SCHEDULE 2    SCHEDULE 3     SCHEDULE 4   SCHEDULE 5
------------------ ------------ ------------ --------------- ------------ ------------
First $1 billion     0.5200%      0.7200%        1.2300%        0.8700%     1.0000%
Next $5 billion      0.4600%      0.6600%        1.1700%        0.8100%     0.9400%
Next $15 billion     0.4160%      0.6160%        1.1260%        0.7660%     0.8960%
Next $25 billion     0.3690%      0.5690%        1.0790%        0.7190%     0.8490%
Next $50 billion     0.3420%      0.5420%        1.0520%        0.6920%     0.8220%
Next $150 billion    0.3390%      0.5390%        1.0490%        0.6890%     0.8190%
Thereafter           0.3380%      0.5380%        1.0480%        0.6880%     0.8180%
================== ============ ============ =============== ============ ============



                                                                        Page A-1






AMERICAN CENTURY TARGET MATURITIES TRUST    Schedule B: Investment Category Assignments
---------------------------------------------------------------------------------------
                                   SCHEDULE B

                         INVESTMENT CATEGORY ASSIGNMENTS

AMERICAN CENTURY TARGET MATURITIES TRUST
==================================== ========================= =================
Series                               Category                   Applicable Fee
                                                               Schedule Number
------------------------------------ ------------------------- -----------------
Target 2010 Fund                     Bond Funds                       3
Target 2015 Fund                     Bond Funds                       3
Target 2020 Fund                     Bond Funds                       3
Target 2025 Fund                     Bond Funds                       3
==================================== ========================= =================




                                                                        Page B-1







AMERICAN CENTURY TARGET MATURITIES TRUST       Schedule C: Complex Fee Schedules
--------------------------------------------------------------------------------
                                   SCHEDULE C

             Effective from August 1, 2007 through December 2, 2007

                              COMPLEX FEE SCHEDULES
====================== =========================================================
                                          Rate Schedules

Complex Assets          Advisor Class   Institutional Class    All Other Classes
---------------------- --------------- ---------------------- ------------------
First $2.5 billion         0.0600%            0.1100%               0.3100%
Next $7.5 billion          0.0500%            0.1000%               0.3000%
Next $15.0 billion         0.0485%            0.0985%               0.2985%
Next $25.0 billion         0.0470%            0.0970%               0.2970%
Next $25.0 billion         0.0370%            0.0870%               0.2870%
Next $25.0 billion         0.0300%            0.0800%               0.2800%
Next $25.0 billion         0.0200%            0.0700%               0.2700%
Next $25.0 billion         0.0150%            0.0650%               0.2650%
Next $25.0 billion         0.0100%            0.0600%               0.2600%
Next $25.0 billion         0.0050%            0.0550%               0.2550%
Thereafter                 0.0000%            0.0500%               0.2500%
====================== =============== ====================== ==================






=================== ======== ========= ======== ======== ======= ======== ======
      Series        Investor  Institu-  Advisor     A       B        C     R
                     Class    tional    Class    Class   Class    Class   Class
                              Class
------------------- -------- --------- -------- -------- ------- -------- ------
Target 2010 Fund    Yes       No       Yes      No       No      No       No
Target 2015 Fund    Yes       No       Yes      No       No      No       No
Target 2020 Fund    Yes       No       Yes      No       No      No       No
Target 2025 Fund    Yes       No       Yes      No       No      No       No
=================== ======== ========= ======== ======== ======= ======== ======




                                                                        Page C-1





AMERICAN CENTURY TARGET MATURITIES TRUST       Schedule C: Complex Fee Schedules
--------------------------------------------------------------------------------

                                   SCHEDULE C

              Effective from December 3, 2007 through July 31, 2008

                              COMPLEX FEE SCHEDULES

                                 Rate Schedules
------------------------- ------------------------------------------------------
Complex Assets                Institutional Class           All Other Classes
------------------------- ----------------------------- ------------------------
First $2.5 billion                  0.1100%                      0.3100%
Next $7.5 billion                   0.1000%                      0.3000%
Next $15.0 billion                  0.0985%                      0.2985%
Next $25.0 billion                  0.0970%                      0.2970%
Next $25.0 billion                  0.0870%                      0.2870%
Next $25.0 billion                  0.0800%                      0.2800%
Next $25.0 billion                  0.0700%                      0.2700%
Next $25.0 billion                  0.0650%                      0.2650%
Next $25.0 billion                  0.0600%                      0.2600%
Next $25.0 billion                  0.0550%                      0.2550%
Thereafter                          0.0500%                      0.2500%
========================= ============================= ========================






==================== ======== ========= ======== ======= ====== ======== ======
          Series     Investor  Institu-  Advisor    A      B       C     R
                      Class    tional    Class    Class  Class   Class   Class
                               Class
-------------------- -------- --------- -------- ------- ------ -------- ------
Target 2010 Fund     Yes       No       Yes      No      No     No       No
Target 2015 Fund     Yes       No       Yes      No      No     No       No
Target 2020 Fund     Yes       No       Yes      No      No     No       No
Target 2025 Fund     Yes       No       Yes      No      No     No       No
==================== ======== ========= ======== ======= ====== ======== ======



                                                                        Page C-2



                                                                  EXHIBIT (e)(1)

                   AMENDED AND RESTATED DISTRIBUTION AGREEMENT

     THIS  DISTRIBUTION  AGREEMENT  is made  and  entered  into  this 1st day of
August,  2007,  by and between  AMERICAN  CENTURY  TARGET  MATURITIES  TRUST,  a
Massachusetts  business trust (the "Issuer"),  and AMERICAN  CENTURY  INVESTMENT
SERVICES, INC. ("Distributor"), a Delaware corporation.

     WHEREAS,  the Issuer is an investment  company  registered as such with the
Securities and Exchange  Commission  ("SEC") under the Investment Company Act of
1940,  whose common stock is currently  divided into a number of separate series
of shares, each corresponding to a distinct portfolio of securities, and many of
which are also divided into multiple classes of shares;

     WHEREAS,  Distributor is a registered as a broker-dealer with the SEC under
the Securities Exchange Act of 1934 and is a member of the National  Association
of Securities Dealers, Inc.;

     WHEREAS,  the Issuer has entered into an  investment  management  agreement
with American  Century  Investment  Management,  Inc.,  American  Century Global
Investment  Management,  Inc.  (each  referred  to herein as the  "Advisor,"  as
applicable),  or both for the provision of investment  advisory  services by the
Advisor to the Issuer;

     WHEREAS,  the Boards of  Trustees  of the Issuer  (the  "Board")  wishes to
engage the  Distributor to act as the distributor of the shares of each class of
the  Issuer's  separate  series,  and any other  series  and  classes  as may be
designated  from time to time hereafter (the  "Funds"),  in accordance  with the
terms of this Agreement.

     NOW,  THEREFORE,  in consideration of the mutual promises set forth herein,
the parties agree as follows:

SECTION 1. GENERAL RESPONSIBILITIES

Issuer hereby engages Distributor to act as exclusive  distributor of the shares
of each class of the Funds.  The Funds subject to this  Agreement as of the date
hereof are  identified  on SCHEDULE A, which may be amended from time to time in
accordance with SECTION 11 below. Sales of a Fund's shares shall be made only to
investors  residing  in those  states in which  such Fund is  registered.  After
effectiveness  of each  Fund's  registration  statement,  Distributor  will hold
itself  available to receive,  as agent for the Fund,  and will receive by mail,
telex, telephone, or such other method as may be agreed upon between Distributor
and Issuer,  orders for the purchase of Fund  shares,  and will accept or reject
such  orders on  behalf of the Fund in  accordance  with the  provisions  of the
applicable Fund's prospectus.  Distributor will be available to transmit orders,
as promptly as possible  after it accepts  such orders,  to the Fund's  transfer
agent  for  processing  at the  shares'  net  asset  value  next  determined  in
accordance with the prospectuses.




     a. OFFERING  PRICE.  All shares sold by  Distributor  under this  Agreement
shall be sold at the net asset value per share ("Net Asset Value") determined in
the manner described in each Fund's  prospectus,  as it may be amended from time
to time,  next computed  after the order is accepted by  Distributor,  or one or
more of its  affiliates  or  designees.  Each Fund shall  determine and promptly
furnish to  Distributor  a statement of the Net Asset Value of each class of the
Fund's  shares  at least  once each day that the Fund is open for  business,  as
described in its current prospectus.

     b. PROMOTION  SUPPORT.  Each Fund shall furnish to  Distributor  for use in
connection with the sale of its shares such written  information with respect to
said Fund as  Distributor  may  reasonably  request.  Each Fund  represents  and
warrants that such  information,  when  authenticated by the signature of one of
its  officers,  shall be true and  correct.  Each Fund  shall  also  furnish  to
Distributor  copies  of its  reports  to its  shareholders  and such  additional
information  regarding  said  Fund's  financial  condition  as  Distributor  may
reasonably request.  Any and all  representations,  statements and solicitations
respecting a Fund's shares made in advertisements,  sales literature, and in any
other manner  whatsoever  shall be limited to and conform in all respects to the
information provided hereunder.

     c. REGULATORY COMPLIANCE.  Each Fund shall furnish to Distributor copies of
its  current  form of  prospectus,  as filed with the SEC,  in such  quantity as
Distributor may reasonably request from time to time, and authorize  Distributor
to use the  prospectus in connection  with the sale of such Fund's  shares.  All
such sales shall be initiated by offer of, and  conducted  in  accordance  with,
such  prospectus  and all of the  provisions of the  Securities Act of 1933, the
Investment  Company Act of 1940 ("1940  Act") and all the rules and  regulations
promulgated  thereunder.  Distributor shall furnish applicable federal and state
regulatory  authorities  with any information or reports related to its services
under this  Agreement  that such  authorities  may lawfully  request in order to
ascertain  whether  the  Funds'  operations  are  being  conducted  in a  manner
consistent with any applicable law or regulations.

     d.  ACCEPTANCE.  All orders for the  purchase  of its shares are subject to
acceptance by each Fund.

SECTION 2. COMPENSATION

     a. INVESTOR CLASS AND INSTITUTIONAL CLASS OF SHARES.  Distributor shall not
be entitled to  compensation  for its  services  hereunder  with  respect to the
Investor Class and Institutional Class of shares.

     b. ADVISOR CLASS, A CLASS, B CLASS, C CLASS, AND R CLASS OF SHARES. For the
services  provided  and  expenses  incurred by  Distributor  as described in the
Master  Distribution  and  Shareholder  Services  Plan adopted by the Board with
respect  to the  Advisor  Class,  and the  Master  Distribution  and  Individual
Shareholder Services Plan with respect to each of the A Class, B Class, C Class,
and R Class of each Fund (the "12b-1 Plan"), as applicable, Distributor shall be
compensated by the Fund's Advisor, not by the Fund.


                                       2


SECTION 3. EXPENSES

     a.  Distributor,  or one or more of its affiliates or designees,  shall pay
all  expenses  incurred  by  it  in  connection  with  the  performance  of  its
distribution duties hereunder and under the 12b-1 Plan for each applicable class
offered by a Fund that is subject to a 12b-1 Plan (the "Class"),  including, but
not limited to (A) payment of asset-based sales charges,  including  commission,
ongoing   commissions  and  other  payments  to  brokers,   dealers,   financial
institutions or others who sell the Class shares pursuant to Selling Agreements;
(B) compensation to registered representatives or other employees of Distributor
who engage in or support  distribution of the Class shares; (C) compensation to,
and expenses (including  overhead and telephone  expenses) of, Distributor;  (D)
printing of prospectuses,  statements of additional  information and reports for
other than existing shareholders; (E) preparation,  printing and distribution of
sales literature and advertising  materials provided to the Fund's  shareholders
and prospective  shareholders;  (F) receiving and answering  correspondence from
prospective  shareholders,  including distributing  prospectuses,  statements of
additional information, and shareholder reports; (G) the provision of facilities
to answer questions from prospective  investors about Fund shares; (H) complying
with federal and state  securities  laws  pertaining to the sale of Fund shares;
(I) assisting  investors in completing  application forms and selecting dividend
and other account options;  (J) the provision of other reasonable  assistance in
connection with the  distribution of Fund shares;  (K) organizing and conducting
of sales  seminars and  payments in the form of  transactional  compensation  or
promotional  incentives;  (L) profit on the  foregoing;  (M) payment of "service
fees",  as  contemplated  by the Rule 2830 of the Conduct  Rules of the National
Association of Securities  Dealers,  Inc.; and (N) such other  distribution  and
services  activities  as the  Issuer  determines  may be paid for by the  Issuer
pursuant to the terms of this Agreement and in accordance with Rule 12b-1 of the
1940 Act.

     b. In addition  to paying the above  expenses  with  respect to each Class,
Distributor,  or one or more  of its  affiliates  or  designees,  shall  pay all
expenses  incurred  with respect to the other classes of each Fund in connection
with their  registration  under the Securities Act of 1933 and the 1940 Act, the
qualification  of such shares for sale in each  jurisdiction  designated  by the
appropriate  Advisor,  the issue and  transfer  of such  shares  (including  the
expenses of  confirming  purchase and  redemption  orders and of  supplying  the
information,  prices  and other  data to be  furnished  by the Funds  under this
Agreement),  the  registration of Distributor as a broker,  and the registration
and qualification of its officers, trustees and representatives under applicable
federal and state laws.

SECTION 4. INDEPENDENT CONTRACTOR

Distributor shall be an independent  contractor.  Neither Distributor nor any of
its officers,  trustees, employees or representatives is or shall be an employee
of a Fund in connection with the performance of Distributor's  duties hereunder.
Distributor  shall  be  responsible  for its  own  conduct  and the  employment,
control,  compensation  and  conduct of its agents  and  employees,  and for any
injury  to such  agents  or  employees  or to  others  through  its  agents  and
employees.  Any obligations of Distributor  hereunder may be performed by one or
more of the Distributor's affiliates or designees.


                                       3


SECTION 5. AFFILIATION WITH THE FUNDS

Subject to and in accordance with each Fund's formative documents and Section 10
of the 1940 Act,  it is  understood:  that the  trustees,  officers,  agents and
shareholders  of the Funds are or may be interested in Distributor as directors,
officers, or shareholders of Distributor;  that directors,  officers,  agents or
shareholders  of Distributor  are or may be interested in the Funds as trustees,
officers,  shareholders  (directly or  indirectly)  or  otherwise;  and that the
effect of any such  interest  shall be governed by the 1940 Act and SECTION 4 of
this Agreement.

SECTION 6. BOOKS AND RECORDS

The parties hereto  understand and agree that all documents,  reports,  records,
books, files and other materials ("Fund Records") relating to this Agreement and
the services to be performed  hereunder  shall be the sole property of the Funds
and that such  property,  to the extent  held by  Distributor,  shall be held by
Distributor  as agent  during the  effective  term of this  Agreement.  All Fund
Records shall be delivered to the applicable  Fund upon the  termination of this
Agreement, free from any claim or retention of rights by Distributor.

SECTION 7. SERVICES NOT EXCLUSIVE

The  services  of  Distributor  to the  Funds  hereunder  are  not to be  deemed
exclusive, and Distributor shall be free to render similar services to others.

SECTION 8. RENEWAL AND TERMINATION

     a. TERM AND ANNUAL  RENEWAL.  The term of this Agreement  shall be from the
date of its approval by the vote of a majority of the Board of each Issuer,  and
it shall  continue in effect from year to year  thereafter  only so long as such
continuance is specifically approved at least annually by the vote of a majority
of its Board,  and the vote of a majority of those  members of the Board who are
neither parties to the Agreement nor interested  persons of any such party, cast
at a meeting  called for the purpose of voting on such  approval.  "Approved  at
least  annually"  shall  mean  approval  occurring,  with  respect  to the first
continuance of the Agreement, during the 90 days prior to and including the date
of its  termination  in the absence of such  approval,  and with  respect to any
subsequent  continuance,  during  the 90 days prior to and  including  the first
anniversary of the date upon which the most recent previous  annual  continuance
of the Agreement  became  effective.  The effective  date of the Agreement  with
respect to each Fund is identified in the SCHEDULE A of this Agreement.

     b.  TERMINATION.  This  Agreement may be  terminated  at any time,  without
payment  of  any  penalty,  by  the  Board  upon  60  days'  written  notice  to
Distributor, and by Distributor upon 60 days' written notice to the Issuer. This
Agreement shall terminate automatically in the event of its assignment. The term
"assignment"  shall have the meaning set forth for such term in Section  2(a)(4)
of the 1940 Act.

                                       4


SECTION 9. SEVERABILITY

If any  provision  of this  Agreement  shall be held or made  invalid by a court
decision,  statute,  rule or similar authority,  the remainder of this Agreement
shall not be affected thereby.

SECTION 10. APPLICABLE LAW

This  Agreement  shall be construed in accordance  with the laws of the State of
Missouri.

SECTION 11. AMENDMENT

This  Agreement  and SCHEDULE A forming a part hereof may be amended at any time
by a writing signed by each of the parties  hereto.  In the event that the Board
indicates by resolution that Distributor is to serve as the distributor of a new
series of shares of the  Issuer  (a "New  Fund")  pursuant  to the terms of this
Agreement,  whether such New Fund was in existence at the time of the  effective
date of this  Agreement  or  subsequently  formed,  SCHEDULE  A hereto  shall be
amended to reflect  the  addition of such New Fund and the  distribution  of the
shares  of such  new fund  shall  thereafter  be  covered  by the  terms of this
Agreement.  In the event that such New Fund issues  multiple  classes of shares,
SCHEDULE A hereto shall be amended,  as appropriate,  to reflect the addition of
each such  class of the New  Fund's  shares.  In the event that any of the Funds
listed on SCHEDULE A terminates its  registration as an investment  company,  or
otherwise ceases operations, SCHEDULE A shall be amended to reflect the deletion
of such Fund and all of its classes.


                            AMERICAN CENTURY INVESTMENT SERVICES, INC.

                            By:   /s/ Jon W. Zindel
                                  ---------------------------------------------
                                  Jon W. Zindel
                                  Senior Vice President


                            AMERICAN CENTURY TARGET MATURITIES TRUST

                            By:   /s/ Maryanne L. Roepke
                                  ---------------------------------------------
                                  Maryanne L. Roepke
                                  Senior Vice President


                                      5






                                   SCHEDULE A

            FUNDS AND CLASSES COVERED BY THIS DISTRIBUTION AGREEMENT

                    AMERICAN CENTURY TARGET MATURITIES TRUST

INVESTOR CLASS FUNDS                                        DATE OF AGREEMENT
--------------------                                        -----------------
Target 2010 Fund                                            March 13, 2000
Target 2015 Fund                                            March 13, 2000
Target 2020 Fund                                            March 13, 2000
Target 2025 Fund                                            March 13, 2000

ADVISOR CLASS FUNDS                                         DATE OF AGREEMENT
-------------------                                         -----------------
Target 2010 Fund                                            March 13, 2000
Target 2015 Fund                                            March 13, 2000
Target 2020 Fund                                            March 13, 2000
Target 2025 Fund                                            March 13, 2000




                                                                        page A-1




                                                                  EXHIBIT (h)(1)


                              AMENDED AND RESTATED
                            TRANSFER AGENCY AGREEMENT

     THIS AGREEMENT,  made as of August 1, 2007, by and between AMERICAN CENTURY
TARGET MATURITIES TRUST, a Massachusetts Business Trust ("ACTMT"),  and AMERICAN
CENTURY SERVICES, LLC, a Missouri limited liability company ("Services").

     1. By action of its Board of  Directors,  ACTMT  appointed  Services as its
transfer agent, and Services accepted such appointment.

     2. As transfer  agent for ACTMT,  Services  shall perform all the functions
usually performed by transfer agents of investment companies, in accordance with
the policies and practices of ACTMT as disclosed in its  prospectus or otherwise
communicated to Services from time to time,  including,  but not limited to, the
following:

     (a)  Recording the  ownership,  transfer,  conversion and  cancellation  of
          ownership of shares of ACTMT on the books of ACTMT;

     (b)  Causing the issuance,  transfer,  conversion and cancellation of stock
          certificates of ACTMT;

     (c)  Establishing and maintaining records of accounts;

     (d)  Computing and causing to be prepared and mailed or otherwise delivered
          to  shareholders  payment  of  redemption  proceeds  due from ACTMT on
          redemption of shares and notices of reinvestment in additional  shares
          of  dividends,  stock  dividends or stock splits  declared by ACTMT on
          shares of ACTMT;

     (e)  Furnishing  to  shareholders  such  information  as may be  reasonably
          required by ACTMT, including confirmation of shareholder  transactions
          and appropriate income tax information;

     (f)  Addressing  and  mailing  to  shareholders  prospectuses,  annual  and
          semiannual  reports;   addressing  and  mailing  proxy  materials  for
          shareholder meetings prepared by or on behalf of ACTMT, and tabulating
          the proxy votes;

     (g)  Replacing  allegedly lost,  stolen or destroyed stock  certificates in
          accordance  with and  subject to usual and  customary  procedures  and
          conditions;

     (h)  Maintaining such books and records  relating to transactions  effected
          by  Services  pursuant  to  this  Agreement  as  are  required  by the
          Investment Company Act of 1940, or by rules or regulations thereunder,
          or by any other  applicable  provisions  of law, to be  maintained  by
          ACTMT  or its  transfer  agent  with  respect  to  such  transactions;
          preserving, or causing to be preserved, any such books and records




          for  such  periods  as may  be  required  by any  such  law,  rule  or
          regulation;  furnishing ACTMT such information as to such transactions
          and at such times as may be  reasonably  required by it to comply with
          applicable laws and regulations, including but not limited to the laws
          of the several states of the United States;

     (i)  Dealing with and  answering  all  correspondence  from or on behalf of
          shareholders relating to its functions under this Agreement.

     3. ACTMT may perform on site inspection of records and accounts and perform
audits directly  pertaining to ACTMT  shareholder  accounts serviced by Services
hereunder at Services'  facilities in accordance with  reasonable  procedures at
the frequency necessary to show proper  administration of this agreement and the
proper audit of ACTMT's  financial  statements.  Services  will  cooperate  with
ACTMT's auditors and the representatives of appropriate  regulatory agencies and
furnish all reasonably requested records and data.

     4.   (a) Services  will at all times  exercise due diligence and good faith
in performing its duties  hereunder.  Services will make every reasonable effort
and take all  reasonably  available  measures  to  assure  the  adequacy  of its
personnel and facilities as well as the accurate  performance of all services to
be performed  by it hereunder  within the time  requirements  of any  applicable
statutes, rules or regulations or as disclosed in ACTMT's prospectus.

          (b)  Services  shall  not be  responsible  for,  and  ACTMT  agrees to
indemnify Services for, any losses,  damages or expenses  (including  reasonable
counsel fees and expenses) (a) resulting from any claim, demand,  action or suit
not resulting from Services  failure to exercise good faith or due diligence and
arising  out of or in  connection  with  Services'  duties on behalf of the fund
hereunder;  (b) for any delay,  error,  or  omission  by reason or  circumstance
beyond its  control,  including  acts of civil or military  authority,  national
emergencies,  labor difficulties  (except with response to Services  employees),
fire,  mechanical  breakdowns beyond its control,  flood or catastrophe,  act of
God,  insurrection,  war, riot or failure beyond its control of  transportation,
communication  or power  supply;  or (c) for any  action  taken or omitted to be
taken by  Services  in good faith in  reliance  on (i) the  authenticity  of any
instrument or communication  reasonably believed by it to be genuine and to have
been properly made and signed or endorsed by an appropriate  person, or (ii) the
accuracy of any  records or  information  provided to it by ACTMT,  or (iii) any
authorization or instruction contained in any officers' instruction, or (iv) any
advice of counsel  approved by ACTMT who may be internally  employed  counsel or
outside counsel, in either case for ACTMT or Services.

     5.  Services  shall not look to ACTMT  for  compensation  for its  services
described  herein.  It  shall  be  compensated   entirely  by  American  Century
Investment  Management,  Inc. or American Century Global Investment  Management,
Inc.,  as  applicable  (the  "Advisor"),  pursuant to the  management  agreement
between  Advisor  and  ACTMT,  which  requires  Advisor  to  pay,  with  certain
exceptions, all of the expenses of ACTMT.


                                       2


     6.   (a) This  Agreement  may be  terminated  by  either  party at any time
without  penalty  upon giving the other  party 60 days'  written  notice  (which
notice may be waived by either party).

          (b) Upon  termination,  Services  will deliver to ACTMT all  microfilm
records  pertaining  to  shareholder  accounts  of  ACTMT,  and all  records  of
shareholder  accounts in machine  readable  form in the format in which they are
maintained by Services.

          (c) All data  processing  programs used by Services in connection with
the  performance  of its duties under this  Agreement are the sole and exclusive
property of Services,  and after the termination of this Agreement,  ACTMT shall
have no right to use the same.

     IN WITNESS WHEREOF, the parties have executed this instrument as of the day
and year first above written.

                                   AMERICAN CENTURY TARGET MATURITIES TRUST


                                   By:  /s/ Maryanne L. Roepke
                                        ----------------------------------------
                                        Maryanne L. Roepke
                                        Senior Vice President


                                   AMERICAN CENTURY SERVICES, LLC


                                   By:  /s/ Otis H. Cowan
                                        ----------------------------------------
                                        Otis H. Cowan
                                        Vice President

                                       3



                                                                     EXHIBIT (j)



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We  hereby  consent  to the  incorporation  by  reference  in this  Registration
Statement  on Form N-1A of our report dated  November 19, 2007,  relating to the
financial statements and financial highlights which appears in the September 30,
2007 Annual  Report to  Shareholders  of the Target  2010 Fund,  the Target 2015
Fund, the Target 2020 Fund, and the Target 2025 Fund which are also incorporated
by reference into the Registration  Statement. We also consent to the references
to us under the headings "Financial Highlights",  "Independent Registered Public
Accounting Firm" and "Financial Statements" in such Registration Statement.



/s/ PRICEWATERHOUSECOOPERS LLP
--------------------------------------
PRICEWATERHOUSECOOPERS LLP

Kansas City, MO
January 22, 2008
                                                                    EXHIBIT (m)


                              AMENDED AND RESTATED
                       MASTER DISTRIBUTION AND INDIVIDUAL
                            SHAREHOLDER SERVICES PLAN

                    AMERICAN CENTURY TARGET MATURITIES TRUST
                                 (THE "ISSUER")

                                  ADVISOR CLASS


SECTION 1. DISTRIBUTION FEES

a.   DISTRIBUTION  FEE. For  purposes of paying  costs and expenses  incurred in
     providing  the  services  set forth in  SECTION 2 below,  the series of the
     Issuer  identified  on SCHEDULE A (the  "Funds")  shall pay the  investment
     adviser  engaged  by the Funds  (the  "Advisor"),  as paying  agent for the
     Funds,  a fee equal to 25 basis  points  (0.25%)  per annum of the  average
     daily net assets of the shares of the Funds'  Advisor  Class of shares (the
     "Distribution Fee").

b.   APPLICABILITY  TO NEW FUNDS. If the Issuer desires to add additional  funds
     to the Plan,  whether  currently  existing or created in the future (a "New
     Fund"),  and the Issuer's  Board of Trustees (the "Board") has approved the
     Plan for such New Fund as in the  manner  set  forth in  SECTION  4 of this
     Plan, as well as by the then-sole  shareholder  of the Advisor Class shares
     of such New Fund (if  required by the  Investment  Company Act of 1940 (the
     "1940  Act") or rules  promulgated  under the 1940  Act),  this Plan may be
     amended to provide that such New Fund will become  subject to this Plan and
     will pay the Distribution  Fee set forth in SECTION 1(A) above,  unless the
     Board  specifies  otherwise.  After the  adoption of this Plan by the Board
     with  respect  to the  Advisor  Class of shares  of the New Fund,  the term
     "Funds"  under this Plan  shall  thereafter  be deemed to include  such New
     Fund.

c.   CALCULATION  AND  ASSESSMENT.  Distribution  Fees  under  this Plan will be
     calculated  and accrued daily by each Fund and paid to the Advisor  monthly
     or at such other intervals as the Issuer and the Advisor may agree.

SECTION 2. DISTRIBUTION SERVICES

The Advisor  shall use the  Distribution  Fee set forth in SECTION  1(A) of this
Plan to pay for  services  in  connection  with  any  activities  undertaken  or
expenses incurred by the distributor of the Funds' shares (the "Distributor") or
its affiliates  primarily intended to result in the sale of Advisor Class shares
of the Funds,  which  services  may  include,  but are not  limited  to, (A) the
payment of sales commissions, ongoing commissions and other payments to brokers,
dealers,  financial  institutions or others who sell Advisor Class shares of the
Funds  pursuant  to  Selling   Agreements;   (B)   compensation   to  registered
representatives  or other  employees  of  Distributor  who  engage in or support
distribution  of the Funds'  Advisor  Class  shares;  (C)  compensation  to, and
expenses  (including  overhead and  telephone  expenses)  of,  Distributor;  (D)
printing of prospectuses,  statements of additional  information and reports for
other than existing shareholders; (E) preparation,  printing and distribution of
sales literature and advertising  materials provided to the




Funds'  shareholders and prospective  shareholders;  (F) receiving and answering
correspondence   from   prospective    shareholders,    including   distributing
prospectuses, statements of additional information, and shareholder reports; (G)
provision of facilities to answer  questions from  prospective  investors  about
Fund shares;  (H) complying with federal and state securities laws pertaining to
the sale of Fund shares; (I) assisting investors in completing application forms
and  selecting  dividend  and other  account  options;  (J)  provision  of other
reasonable  assistance in connection with the  distribution of Fund shares;  (K)
organizing  and  conducting  of  sales  seminars  and  payments  in the  form of
transactional   compensation  or  promotional  incentives;  (L)  profit  on  the
foregoing;  and (M) such other distribution and service activities as the Issuer
determines may be paid for by the Issuer  pursuant to the terms of this Plan and
in accordance  with Rule 12b-1 of the 1940 Act;  provided that if the Securities
and Exchange  Commission  determines that any of the foregoing  services are not
permissible   under  Rule  12b-1,   any  payments  for  such   activities   will
automatically cease.

SECTION 3. INDIVIDUAL SHAREHOLDER SERVICES

The Advisor may engage third parties to provide individual  shareholder services
to the  shareholders  of  the  Advisor  Class  shares  ("Individual  Shareholder
Services"). The amount set forth in SECTION 1(A) of this Plan may be paid to the
Advisor  for  expenses  incurred by it as a result of these  arrangements.  Such
Individual  Shareholder  Services and related  expenses relate to activities for
which  service  fees may be paid as  contemplated  by the  Conduct  Rules of the
Financial Industry Regulatory Authority ("FINRA"),  and may include, but are not
limited to, (A)  individualized  and customized  investment  advisory  services,
including the consideration of shareholder  profiles and specific goals; (B) the
creation  of  investment  models  and  asset  allocation  models  for use by the
shareholder  in selecting  appropriate  Funds;  (C)  proprietary  research about
investment  choices  and the market in  general;  (D)  periodic  rebalancing  of
shareholder  accounts to ensure  compliance with the selected asset  allocation;
(E) consolidation of shareholder accounts in one place; and (F) other individual
services; provided that if FINRA determines that any of the foregoing activities
are not permissible, any payment for such activities will automatically cease.

SECTION 4. EFFECTIVENESS

This Plan has been approved by the vote of both (a) the Board and (b) a majority
of those members of the Board who are not "interested persons" as defined in the
1940 Act (the "Independent  Members"),  and initially became effective on August
1, 1997.

SECTION 5. TERM

This Plan will  continue  in full force and effect for a period of one year from
the date  hereof,  and for  successive  periods  of up to one  year  thereafter,
provided that each such  continuance is approved by a majority of (a) the Board,
and (b) the Independent Members.

SECTION 6. REPORTING REQUIREMENTS

The Advisor shall administer this Plan in accordance with Rule 12b-1 of the 1940
Act.  The Advisor  shall  provide to the  Issuer's  Board,  and the  Independent
Members will review and approve in exercise of their fiduciary  duties, at least
quarterly,  a written  report of the  amounts  expended  under  this Plan by the
Advisor  with  respect to the Advisor  Class  shares of each Fund and such other
information as may be required by the 1940 Act and Rule 12b-1 thereunder.


                                       2


SECTION 7. TERMINATION

This Plan may be  terminated  without  penalty  at any time with  respect to the
Advisor Class shares of any Fund by the vote of a majority of the Board,  by the
vote of a majority of the Independent  Members,  or by the vote of a majority of
the  outstanding  shares of the Advisor Class of that Fund.  Termination  of the
Plan with  respect to the Advisor  Class  shares of one Fund will not affect the
continued effectiveness of this Plan with respect to the Advisor Class shares of
any other Fund.

SECTION 8. AMENDMENTS TO THIS PLAN

This Plan may not be amended to increase materially the amount of compensation a
Fund is  authorized  to pay under  SECTION 1 hereof  unless  such  amendment  is
approved in the manner  provided for in SECTION 4 hereof,  and such amendment is
further  approved by a majority of the outstanding  shares of the Fund's Advisor
Class, and no other material  amendment to the Plan will be made unless approved
in the manner provided for approval and annual renewal in SECTION 4 hereof.

SECTION 9. RECORDKEEPING

The Issuer will preserve copies of this Plan (including any amendments  thereto)
and any related agreements and all reports made pursuant to SECTION 5 hereof for
a period of not less than six years  from the date of this  Plan,  the first two
years in an easily accessible place.

IN WITNESS WHEREOF, the Issuer has executed this Plan as of January 1, 2008.


                                AMERICAN CENTURY TARGET MATURITIES TRUST


                                By:  /s/ Charles A. Etherington
                                     ------------------------------------
                                     Charles A. Etherington
                                     Senior Vice President


                                       3





                                   SCHEDULE A

                       FUNDS OFFERING ADVISOR CLASS SHARES

FUNDS                                                        DATE PLAN ADOPTED
-----                                                        -----------------

AMERICAN CENTURY TARGET MATURITIES TRUST
       Target 2010 Fund                                    August 1, 1997
       Target 2015 Fund                                    August 1, 1997
       Target 2020 Fund                                    August 1, 1997
       Target 2025 Fund                                    August 1, 1997



                                      A-1

                                                                     EXHIBIT (n)



                    AMENDED AND RESTATED MULTIPLE CLASS PLAN

                                       OF

                    AMERICAN CENTURY TARGET MATURITIES TRUST

     WHEREAS,  the  above-named   corporation  (the  "Issuer")  is  an  open-end
management  investment  company  registered under the Investment  Company Act of
1940, as amended (the "1940 Act");

     WHEREAS,  the common stock of the Issuer is currently  allocated to various
classes of separate series of shares;

     WHEREAS,  Rule 18f-3 requires that the Board of Trustees of the Issuer (the
"Board"),  adopt a written plan (a "Multiple  Class Plan") setting forth (1) the
specific arrangement for shareholder services and the distribution of securities
for each  class,  (2) the  allocation  of expenses  for each class,  and (3) any
related conversion features or exchange privileges;

     WHEREAS,  the Issuer has offered  multiple classes of certain series of the
Issuer's  shares  pursuant  to Rule  18f-3  under  the 1940 Act  since the Board
initially adopted the original Multiple Class Plan;

     WHEREAS,  the Board,  including  a majority of those  Trustees  who are not
"interested  persons" as defined in the 1940 Act ("Independent  Trustees"),  has
determined  the Amended and Restated  Multiple Class Plan dated December 3, 2007
(this "Plan"), adopted pursuant to Rule 18f-3 under the 1940 Act, is in the best
interests of the  shareholders  of each class  individually  and the Issuer as a
whole;

     WHEREAS,  the Issuer has  determined  to make  non-material  changes to the
Plan;

     NOW,  THEREFORE,  the  Issuer  hereby  adopts,  on  behalf of the Funds (as
defined in SECTION 2A below), this Plan, in accordance with Rule 18f-3 under the
1940 Act on the following terms and conditions:

SECTION 1. ESTABLISHMENT OF PLAN

As required by Rule 18f-3 under the 1940 Act,  this Plan  describes the multiple
class system for certain series of shares of the Issuer,  including the separate
class arrangements for shareholder  services and/or  distribution of shares, the
method for allocating expenses to classes and any related conversion features or
exchange privileges  applicable to the classes.  Upon the initial effective date
of this  Plan,  the  Issuer  elects to offer  multiple  classes of shares of its
capital stock, as described herein, pursuant to Rule 18f-3 and this Plan.


                                       1


SECTION 2. FEATURES OF THE CLASSES

a.   DIVISION INTO CLASSES.  Each series of shares of the Issuers  identified in
     SCHEDULE  A  attached  hereto,  and each  series of  shares  of any  Issuer
     subsequently added to this Plan (collectively,  the "Funds"), may offer one
     or more of the following classes of shares:  Investor Class,  Institutional
     Class,  Advisor Class,  A Class, B Class, C Class and R Class.  The classes
     that each Fund is authorized  to issue  pursuant to this Plan are set forth
     in SCHEDULE A. Shares of each class of a Fund shall  represent an equal pro
     rata interest in such Fund,  and generally,  shall have  identical  voting,
     dividend, liquidation and other rights, preferences,  powers, restrictions,
     limitations,  qualifications,  and terms and  conditions,  except that each
     class of shares shall: (A) have a different designation; (B) bear any Class
     Expenses,  as defined in SECTION  3D(3) below;  (C) have  exclusive  voting
     rights on any matter  submitted to shareholders  that relates solely to its
     service  arrangement;  and (D) have  separate  voting  rights on any matter
     submitted to  shareholders  in which the interests of one class differ from
     the interests of any other class.

b.   MANAGEMENT FEES.

     (1)  INVESTOR  CLASS  UNIFIED  FEE.  The Issuer is a party to a  management
     agreement  (the  "Management   Agreement")  with  either  American  Century
     Investment   Management,   Inc.  or  American  Century  Global   Investment
     Management,  Inc., each a registered  investment  adviser (each referred to
     herein as the  "Advisor",  as  applicable),  or both for the  provision  of
     investment  advisory  and  management  services in  exchange  for a single,
     unified  fee,  as set forth on  SCHEDULE A and as  described  in the Fund's
     current Investor Class prospectus or prospectus supplement.

     (2) INSTITUTIONAL  CLASS UNIFIED FEE. For each Fund listed on SCHEDULE A as
     being  authorized  to issue  Institutional  Class  shares,  the  Management
     Agreement  provides  for a  unified  fee of 20 basis  points  less than the
     existing unified fee in place for the corresponding  Investor Class of such
     Fund,  as described in the Fund's  current  Investor  Class  prospectus  or
     prospectus  supplement.  Institutional  Class shares are available to large
     institutional  shareholders,  such as  corporations  and retirement  plans,
     other  pooled  accounts,  and  individual  shareholders  that meet  certain
     investment  minimums  established  from time to time by the Advisor.  These
     minimums  may  be  waived  or  lowered  in  certain  situations  as  deemed
     appropriate by the Advisor. Institutional Class shares are not eligible for
     purchase by insurance  companies,  except in connection  with a product for
     defined benefit plans not involving a group annuity contract.

     (3) ADVISOR  CLASS UNIFIED FEE. For each Fund listed on SCHEDULE A as being
     authorized to issue Advisor Class shares, the Management Agreement provides
     for a  unified  fee  equal to the  existing  unified  fee in place  for the
     corresponding  Investor  Class of such  Fund,  as  described  in the Fund's
     current  Investor Class  prospectus or prospectus  supplement.  The Advisor
     Class  is  intended  to be  sold  to  employer-sponsored  retirement  plans
     (including    participant    directed    plans),    insurance    companies,
     broker-dealers, banks and other financial intermediaries.


                                       2


     (4) A CLASS  UNIFIED  FEE.  For each  Fund  listed on  SCHEDULE  A as being
     authorized to issue A Class shares, the Management Agreement provides for a
     unified  fee  equal  to  the   existing   unified  fee  in  place  for  the
     corresponding  Investor  Class of such  Fund,  as  described  in the Fund's
     current Investor Class prospectus or prospectus supplement.  The A Class is
     intended  to be  sold  to  and  through  broker-dealers,  banks  and  other
     financial intermediaries.

     (5) B CLASS  UNIFIED  FEE.  For each  Fund  listed on  SCHEDULE  A as being
     authorized to issue B Class shares, the Management Agreement provides for a
     unified  fee  equal  to  the   existing   unified  fee  in  place  for  the
     corresponding  Investor  Class of such  Fund,  as  described  in the Fund's
     current Investor Class prospectus or prospectus supplement.  The B Class is
     intended  to be  sold  to  and  through  broker-dealers,  banks  and  other
     financial intermediaries.

     (6) C CLASS  UNIFIED  FEE.  For each  Fund  listed on  SCHEDULE  A as being
     authorized to issue C Class shares, the Management Agreement provides for a
     unified  fee  equal  to  the   existing   unified  fee  in  place  for  the
     corresponding  Investor  Class of such  Fund,  as  described  in the Fund's
     current Investor Class prospectus or prospectus supplement.  The C Class is
     intended  to be  sold  to  and  through  broker-dealers,  banks  and  other
     financial intermediaries.

     (7) R CLASS  UNIFIED  FEE.  For each  Fund  listed on  SCHEDULE  A as being
     authorized to issue R Class shares, the Management Agreement provides for a
     unified  fee  equal  to  the   existing   unified  fee  in  place  for  the
     corresponding  Investor  Class of such  Fund,  as  described  in the Fund's
     current Investor Class prospectus or prospectus supplement.  The R Class is
     intended  to be  sold to  employer-sponsored  retirement  plans  (including
     participant directed plans), insurance companies, broker-dealers, banks and
     other financial intermediaries.

c.   SHAREHOLDER SERVICES AND DISTRIBUTION SERVICES.

     (1) ADVISOR CLASS  DISTRIBUTION  PLAN.  Shares of the Advisor Class of each
     Fund are  offered  subject  to an Advisor  Class  Master  Distribution  and
     Shareholder  Services  Plan  pursuant to Rule 12b-1 under the 1940 Act (the
     "Advisor  Class  Plan")  adopted  by the Issuer  effective  August 1, 1997.
     Advisor  Class shares of each Fund shall pay the  Advisor,  as paying agent
     for the Fund,  for the  expenses of  individual  shareholder  services  and
     distribution  expenses  incurred in connection with providing such services
     for shares of the Fund,  as  provided  in the  Advisor  Class  Plan,  at an
     aggregate  annual  rate of .25% of the  average  daily  net  assets of such
     class.

     (2) A CLASS DISTRIBUTION PLAN. If and when adopted by the Issuer, shares of
     the A Class of each  Fund  will be  offered  subject  to an A Class  Master
     Distribution  and  Individual  Shareholder  Services  Plan pursuant to Rule
     12b-1 under the 1940 Act (the "A Class Plan").  A Class shares of each Fund
     shall pay the Advisor,  as paying  agent for the Fund,  for the expenses of
     individual  shareholder  services  and  distribution  expenses  incurred in
     connection with providing such services for shares of the Fund, as provided
     in the A Class  Plan,  at an  aggregate  annual rate of .25% of the average
     daily net assets of such class.

     (3) B CLASS DISTRIBUTION PLAN. If and when adopted by the Issuer, shares of
     the B Class  of each  Fund  will be  offered  subject  to a B Class  Master
     Distribution  and  Individual  Shareholder  Services  Plan pursuant to Rule
     12b-1 under the 1940 Act (the "B Class Plan").  B Class shares of each Fund
     shall pay the


                                       3


     Advisor,  as paying  agent for the Fund,  for the  expenses  of  individual
     shareholder services and distribution  expenses incurred in connection with
     providing  such services for shares of the Fund, as provided in the B Class
     Plan, at an aggregate  annual rate of 1.00% of the average daily net assets
     of such  class  (.75% for  distribution  expenses  and .25% for  individual
     shareholder services).

     (4) C CLASS DISTRIBUTION PLAN. If and when adopted by the Issuer, shares of
     the C Class  of each  Fund  will be  offered  subject  to a C Class  Master
     Distribution  and  Individual  Shareholder  Services  Plan pursuant to Rule
     12b-1 under the 1940 Act (the "C Class Plan").  C Class shares of each Fund
     shall pay the Advisor,  as paying  agent for the Fund,  for the expenses of
     individual  shareholder  services  and  distribution  expenses  incurred in
     connection with providing such services for shares of the Fund, as provided
     in the C Class Plan, at an aggregate  annual rate for all funds of 1.00% of
     the average daily net assets of such class (.75% for distribution  expenses
     and .25% for individual shareholder services).

     (5) R CLASS DISTRIBUTION PLAN. If and when adopted by the Issuer, shares of
     the R Class of each  Fund  will be  offered  subject  to an R Class  Master
     Distribution  and  Individual  Shareholder  Services  Plan pursuant to Rule
     12b-1 under the 1940 Act (the "R Class Plan").  R Class shares of each Fund
     shall pay the Advisor,  as paying  agent for the Fund,  for the expenses of
     individual  shareholder  services  and  distribution  expenses  incurred in
     connection with providing such services for shares of the Fund, as provided
     in the R Class  Plan,  at an  aggregate  annual rate of .50% of the average
     daily net assets of such class.

     (6) DEFINITION OF SERVICES.  Under the Advisor,  A, B, C and R Class Plans,
     "distribution  expenses" include, but are not limited to, expenses incurred
     in connection with (A) payment of sales commission, ongoing commissions and
     other payments to brokers,  dealers,  financial  institutions or others who
     sell  shares of the  relevant  class  pursuant to Selling  Agreements;  (B)
     compensation   to  employees  of  Distributor  who  engage  in  or  support
     distribution of the shares of the relevant class;  (C) compensation to, and
     expenses (including  overhead and telephone expenses) of, Distributor;  (D)
     the printing of  prospectuses,  statements  of additional  information  and
     reports for other than existing shareholders; (E) the preparation, printing
     and distribution of sales literature and advertising  materials provided to
     the Funds'  shareholders  and prospective  shareholders;  (F) receiving and
     answering   correspondence   from   prospective   shareholders,   including
     distributing  prospectuses,   statements  of  additional  information,  and
     shareholder  reports;  (G) the provision of facilities to answer  questions
     from  prospective  investors about Fund shares;  (H) complying with federal
     and  state  securities  laws  pertaining  to the sale of Fund  shares;  (I)
     assisting investors in completing  application forms and selecting dividend
     and other account options; (J) the provision of other reasonable assistance
     in connection with the distribution of Fund shares;  (K) the organizing and
     conducting  of sales  seminars  and  payments in the form of  transactional
     compensation or promotional  incentives;  (L) profit on the foregoing;  and
     (M)  such  other  distribution  and  services   activities  as  the  Issuer
     determines  may be paid for by the  Issuer  pursuant  to the  terms of this
     Agreement and in accordance with Rule 12b-1 of the 1940 Act;  provided that
     if the  Securities  and  Exchanges  Commission  determines  that any of the
     foregoing  services are not permissible  under Rule 12b-1, any payments for
     such activities will automatically cease.


                                       4

     "Individual  shareholder  services" are those activities for which services
     fees may be paid as  contemplated  by the  Conduct  Rules of the  Financial
     Industry  Regulatory  Authority  ("FINRA"),  and may  include,  but are not
     limited to: (A) individualized and customized investment advisory services,
     including the consideration of shareholder profiles and specific goals; (B)
     the creation of investment  models and asset  allocation  models for use by
     the shareholder in selecting  appropriate  Funds; (C) proprietary  research
     about  investment   choices  and  the  market  in  general;   (D)  periodic
     rebalancing of shareholder  accounts to ensure compliance with the selected
     asset allocation;  (E) consolidation of shareholder  accounts in one place;
     and (F) other individual  services;  provided that if FINRA determines that
     any of the foregoing  activities are not permissible,  any payment for such
     activities will automatically cease.

d.   ADDITIONAL FEATURES.

     (1) FRONT-END  LOADS. A Class shares shall be subject to a front-end  sales
     charge in the circumstances and pursuant to the schedules set forth in each
     Fund's then-current prospectus.

     (2) CONTINGENT  DEFERRED  SALES CHARGES.  A, B, and C Class shares shall be
     subject to a  contingent  deferred  sales charge in the  circumstances  and
     pursuant  to the  schedules  as  set  forth  in  each  Fund's  then-current
     prospectus.

     (3) B CLASS  CONVERSION.  B Class  shares will  automatically  convert to A
     Class  shares  of the same Fund at the end of a  specified  number of years
     after the initial  purchase date of the B Class shares,  in accordance with
     the provisions set forth in each Fund's then-current prospectus.

SECTION 3. ALLOCATION OF INCOME AND EXPENSES

a.   DAILY DIVIDEND FUNDS.  Funds that declare  distributions  of net investment
     income  daily to maintain  the same net asset value per share in each class
     ("Daily  Dividend  Funds") will allocate  gross income and expenses  (other
     than  Class  Expenses,  as  defined  below)  to each  class on the basis of
     "relative net assets  (settled  shares)".  Realized and unrealized  capital
     gains and losses will be  allocated  to each class on the basis of relative
     net assets.  "Relative net assets (settled shares)," for this purpose,  are
     net  assets  valued  in  accordance  with  generally  accepted   accounting
     principles but excluding the value of subscriptions receivable, in relation
     to the net assets of the particular Daily Dividend Fund.  Expenses to be so
     allocated include Issuer Expenses and Fund Expenses, each as defined below.

b.   NON-DAILY DIVIDEND FUNDS. The gross income, realized and unrealized capital
     gains and losses and  expenses  (other than Class  Expenses)  of each Fund,
     other than the Daily  Dividend  Funds,  shall be allocated to each class on
     the basis of its net asset  value  relative  to the net asset  value of the
     Fund.  Expenses to be so allocated  also include  Issuer  Expenses and Fund
     Expenses.


                                       5


c.   APPORTIONMENT OF CERTAIN EXPENSES.  Expenses of a Fund shall be apportioned
     to each class of shares depending on the nature of the expense item. Issuer
     Expenses and Fund  Expenses  will be allocated  among the classes of shares
     pro rata based on their  relative  net asset  values in relation to the net
     asset value of all outstanding shares in the Fund.  Approved Class Expenses
     shall be allocated to the particular class to which they are  attributable.
     In addition,  certain expenses may be allocated differently if their method
     of imposition changes. Thus, if a Class Expense can no longer be attributed
     to a class, it shall be charged to a Fund for allocation among classes,  as
     determined by the Advisor.

d.   DEFINITIONS.

     (1) ISSUER EXPENSES.  "Issuer Expenses" include expenses of the Issuer that
     are not  attributable  to a  particular  Fund or  class  of a Fund.  Issuer
     Expenses include fees and expenses of those Independent Trustees, including
     counsel  fees  for the  Independent  Trustees,  and  certain  extraordinary
     expenses of the Issuer that are not  attributable  to a particular  Fund or
     class of a Fund.

     (2) FUND EXPENSES.  "Fund Expenses" include expenses of the Issuer that are
     attributable to a particular fund but are not  attributable to a particular
     class of the Fund. Fund Expenses include (i) interest expenses, (ii) taxes,
     (iii) brokerage expenses, and (iv) certain extraordinary expenses of a Fund
     that are not attributable to a particular class of a Fund.

     (3) CLASS EXPENSES.  "Class Expenses" are expenses that are attributable to
     a  particular  class of a Fund and  shall be  limited  to:  (i)  applicable
     unified  fee;  (ii)  payments  made  pursuant  to the  12b-1  Plan  of each
     applicable Class; and (iii) certain extraordinary  expenses of an Issuer or
     Fund that are attributable to a particular class of a Fund.

     (4) EXTRAORDINARY EXPENSES.  "Extraordinary expenses" shall be allocated as
     an Issuer  Expense,  a Fund  Expense or a Class  Expense in such manner and
     utilizing such methodology as the Advisor shall reasonably determine, which
     determination shall be subject to ratification or approval of the Board and
     shall be consistent with applicable legal principles and requirements under
     the 1940 Act and the Internal  Revenue Code, as amended.  The Advisor shall
     report to the Board quarterly regarding those  extraordinary  expenses that
     have  been  allocated  as Class  Expenses.  Any such  allocations  shall be
     reviewed by, and subject to the approval of, the Board.

SECTION 4. EXCHANGE PRIVILEGES

Subject to the restrictions and conditions set forth in the Funds' prospectuses,
shareholders  may (i)  exchange  shares of one class of a Fund for shares of the
same class of another Fund,  (ii) exchange  Investor  Class shares for shares of
any fund within the American  Century  family of funds that only offers a single
class of shares (a "Single Class Fund"), and (iii) exchange shares of any Single
Class Fund for Investor  Class shares of another Fund,  provided that the amount
to be exchanged meets the applicable  minimum  investment  requirements  and the
shares  to  be  acquired  in  the  exchange  are   qualified  for  sale  in  the
stockholder's state of residence.


                                       6


SECTION 5. CONVERSION FEATURES

Conversions  from one class of a Fund's  shares into another class of shares are
not permitted; PROVIDED, HOWEVER, that if a shareholder of a particular class is
no longer  eligible  to own  shares of that  class,  upon  prior  notice to such
shareholder,  those  shares will be  converted to shares of the same Fund but of
another class in which such shareholder is eligible to invest.  Similarly,  if a
shareholder becomes eligible to invest in shares of another class that has lower
expenses than the class in which such shareholder is invested,  such shareholder
may be  eligible  to convert  into shares of the same Fund but of the class with
the lower expenses.


SECTION 6. QUARTERLY AND ANNUAL REPORTS

The Board shall receive  quarterly and annual  reports  concerning all allocated
Class  Expenses and  distribution  and  servicing  expenditures  complying  with
paragraph  (b)(3)(ii) of Rule 12b-1,  as it may be amended from time to time. In
the reports, only expenditures properly attributable to the sale or servicing of
a  particular  class of  shares  will be used to  justify  any  distribution  or
servicing fee or other expenses charged to that class.  Expenditures not related
to the sale or  servicing  of a  particular  class shall not be presented to the
Board to justify any fee attributable to that class. The reports,  including the
allocations  upon  which  they are  based,  shall be  subject  to the review and
approval  of the  Independent  Trustees  of the  Issuer  who have no  direct  or
indirect  financial  interest in the  operation  of this Plan in the exercise of
their fiduciary duties.

SECTION 7. WAIVER OR REIMBURSEMENT OF EXPENSES

Expenses  may be waived or  reimbursed  by any  adviser  to the  Issuer,  by the
Issuer's  underwriter or by any other provider of services to the Issuer without
the prior  approval of the Board,  provided that the fee is waived or reimbursed
to all shares of a particular Fund in proportion to their relative average daily
net asset values.

SECTION 8. EFFECTIVENESS OF PLAN

Upon  receipt of  approval  by votes of a majority of both (a) the Board and (b)
the Independent Trustees, this Plan shall become effective December 3, 2007.

SECTION 9. MATERIAL MODIFICATIONS

This  Plan may not be  amended  to  modify  materially  its  terms  unless  such
amendment  is approved a majority of both (a) the Board and (b) the  Independent
Trustees;  PROVIDED;  HOWEVER;  that a new Fund may be added by the Issuer  upon
approval by that Issuer's Board by executing a new Schedule A to this Plan.


                                       7


     IN WITNESS  WHEREOF,  the Issuer has adopted this Multiple Class Plan as of
January 1, 2008.

                       AMERICAN CENTURY TARGET MATURITIES TRUST


                       By:  /s/ Charles A. Etherington
                            ----------------------------------------
                            Charles A. Etherington
                            Senior Vice President


                                       8





                                   SCHEDULE A

                     SERIES COVERED BY THIS MULTICLASS PLAN

--------------------------- -------- --------- ------- ------ ----- ------ -------
                                     INSTITU-
                            INVESTOR  TIONAL   ADVISOR   A      B      C       R
                             CLASS     CLASS    CLASS  CLASS  CLASS  CLASS   CLASS
--------------------------- -------- --------- ------- ------ ----- ------ -------
AMERICAN CENTURY TARGET
   MATURITIES TRUST

       Target 2010 Fund     Yes       No       Yes    No      No    No      No
       Target 2015 Fund     Yes       No       Yes    No      No    No      No
       Target 2020 Fund     Yes       No       Yes    No      No    No      No
       Target 2025 Fund     Yes       No       Yes    No      No    No      No
--------------------------- -------- --------- ------- ------ ----- ------ -------




                                      A-1