The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) should be read in conjunction with our consolidated audited financial statements and related notes included herein.

FORWARD-LOOKING STATEMENTS — CAUTIONARY LANGUAGE

This report reviews our financial condition and results of operations, including our liquidity and capital resources. Historical information is presented and discussed, and where appropriate, factors that may affect future financial performance are also identified and discussed. Certain statements made in this report include “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include any statement that may predict, forecast, indicate, or imply future results, performance, or achievements instead of historical facts and may contain words like “believe”, “expect”, “estimate”, “project”, “budget”, “forecast”, “anticipate”, “plan”, “will”, “shall”, “may”, and other words, phrases, or expressions with similar meaning. Forward-looking statements involve risks and uncertainties, which may cause actual results to differ materially from the results contained in the forward-looking statements, and we cannot give assurances that such statements will prove to be correct. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future developments or otherwise. For more information about the risks, uncertainties, and other factors that could affect our future results, please refer to Item 1A, Risk Factors, included herein.

IMPORTANT INVESTOR INFORMATION

We file reports with the United States Securities and Exchange Commission (the "SEC"), including Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and other reports as required. The public may read and copy any materials we file with the SEC at the SEC’s Public Reference Room at 100 F Street, NE, Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. We are an electronic filer and the SEC maintains an internet site at www.sec.gov that contains these reports and other information filed electronically by us. We make available through our website, www.protective.com, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports as soon as reasonably practicable after such materials are electronically filed with or furnished to the SEC. We will furnish such documents to anyone who requests such copies in writing. Requests for copies should be directed to: Financial Information, Protective Life Corporation, P. O. Box 2606, Birmingham, Alabama 35202, Telephone (205) 268-3912, Fax (205) 268-3642.

We also make available to the public current information, including financial information, regarding the Company and our affiliates on the Financial Information page of our website, www.protective.com. We encourage investors, the media and others interested in us and our affiliates to review the information we post on our website. The information found on our website is not part of this or any other report filed with or furnished to the SEC.

OVERVIEW

  Our Business

 We are a wholly owned subsidiary of Protective Life Corporation (“PLC”). Founded in 1907, we are the largest operating subsidiary of PLC. On February 1, 2015, PLC became a wholly owned subsidiary of The Dai-ichi Life Insurance Company, Limited, a kabushiki kaisha organized under the laws of Japan (now known as Dai-ichi Life Holdings, Inc., "Dai-ichi Life"), when DL Investment (Delaware), Inc., a wholly owned subsidiary of Dai-ichi Life, merged with and into PLC (the “Merger”). Prior to February 1, 2015, PLC’s stock was publicly traded on the New York Stock Exchange. Subsequent to the Merger, PLC and the Company remain SEC registrants for financial reporting purposes in the United States. We provide financial services through the production, distribution, and administration of insurance and investment products. Unless the context otherwise requires, the “Company,” “we,” “us,” or “our” refers to the consolidated group of Protective Life Insurance Company and our subsidiaries.

We have several operating segments, each having a strategic focus. An operating segment is distinguished by products, channels of distribution, and/or other strategic distinctions. We periodically evaluate our operating segments and make adjustments to our segment reporting as needed.

Our operating segments are Life Marketing, Acquisitions, Annuities, Stable Value Products, Asset Protection, and Corporate and Other.

RECENT DEVELOPMENTS

 On January 18, 2018, PLC and the Company entered into a Master Transaction Agreement (the "Master Transaction Agreement") with Liberty Mutual Insurance Company, Liberty Mutual Fire Insurance Company, Liberty Mutual Group Inc. ("Liberty Mutual"), The Lincoln National Life Insurance Company ("Lincoln Life"), and Lincoln National Corporation, pursuant to which Lincoln Life will acquire Liberty Mutual's Group Benefits Business and Individual Life and Annuity Business (the "Life Business") through the acquisition of all of the issued and outstanding capital stock of Liberty Life Assurance Company of Boston ("Liberty") (the "Transaction"). Pursuant to the Master Transaction Agreement, PLC, the Company and Protective Life and Annuity Insurance Company ("PLAIC"), a wholly owned subsidiary of the Company, agreed to enter into reinsurance agreements and related ancillary documents at the closing of the Transaction. On the terms and subject to the conditions of the reinsurance agreements, Liberty will cede to the Company and PLAIC, effective as of the closing of the Transaction, substantially all of the insurance policies relating to the Life Business. The aggregate statutory reserves of Liberty to be ceded to the Company and PLAIC as of the closing of the Transaction are expected to be approximately $13.0 billion. To support its obligations under the reinsurance agreements, the Company and PLAIC will each establish a trust account for the benefit of Lincoln Life. Entry into the reinsurance agreements represents an estimated capital investment by the Company of approximately $1.17 billion. The transaction is expected to be completed in the second quarter of 2018, pending regulatory approvals and other customary closing conditions.

For more information about the risks, uncertainties, and other factors that could affect our future results, please see Item 1A, Risk Factors , of this report.

CRITICAL ACCOUNTING POLICIES

Our accounting policies require the use of judgments relating to a variety of assumptions and estimates, including, but not limited to expectations of current and future mortality, morbidity, persistency, expenses, and interest rates, as well as expectations around the valuations of investments, securities, and certain intangible assets. Because of the inherent uncertainty when using the assumptions and estimates, the effect of certain accounting policies under different conditions or assumptions could be materially different from those reported in the consolidated financial statements. A discussion of our various critical accounting policies is presented below.

Fair Value of Financial Instruments - The Financial Accounting Standards Board ("FASB") guidance defines fair value for accounting principles generally accepted in the United States of America ("GAAP") and establishes a framework for measuring fair value as well as a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. The term “fair value” in this document is defined in accordance with GAAP. The standard describes three levels of inputs that may be used to measure fair value. For more information, see Note 2 , Summary of Significant Accounting Policies and Note 6, Fair Value of Financial Instruments , to the consolidated financial statements included in this report .

Available-for-sale securities and trading account securities are recorded at fair value, which is primarily based on actively traded markets where prices are based on either direct market quotes or observed transactions. Liquidity is a significant factor in the determination of the fair value for these securities. Market price quotes may not be readily available for some positions or for some positions within a market sector where trading activity has slowed significantly or ceased. These situations are generally triggered by the market’s perception of credit uncertainty regarding a single company or a specific market sector. In these instances, fair value is determined based on limited available market information and other factors, principally from reviewing the issuer’s financial position, changes in credit ratings, and cash flows on the investments. As of December 31, 2017 (Successor Company), $ 1.2 billion of available-for-sale and trading account assets, excluding other long-term investments, were classified as Level 3 fair value assets.

For securities that are priced via non-binding independent broker quotations, we assess whether prices received from independent brokers represent a reasonable estimate of fair value through an analysis using internal and external cash flow models developed based on spreads and, when available, market indices. We use a market-based cash flow analysis to validate the reasonableness of prices received from independent brokers. These analytics, which are updated daily, incorporate various metrics (yield curves, credit spreads, prepayment rates, etc.) to determine the valuation of such holdings. As a result of this analysis, if we determine that there is a more appropriate fair value based upon the analytics, the price received from the independent broker is adjusted accordingly. As of December 31, 2017 (Successor Company), we did not adjust any prices received from independent brokers.

Derivatives - We utilize a risk management strategy that incorporates the use of derivative financial instruments to reduce exposure to certain risks, including but not limited to, interest rate risk, inflation risk, currency exchange risk, volatility risk, and equity market risk. Assessing the effectiveness of the hedging programs and evaluating the carrying values of the related derivatives often involve a variety of assumptions and estimates. Derivative financial instruments are valued using exchange prices, independent broker quotations, or pricing valuation models, which utilize market data inputs. The fair values of most of our derivatives are determined using exchange prices or independent broker quotes, but certain derivatives, including embedded derivatives, are valued based upon industry standard models which calculate the present-value of the projected cash flows of the derivatives using current and implied future market conditions. These models include market-observable estimates of volatility and interest rates in the determination of fair value. The use of different assumptions may have a material effect on the estimated fair value amounts, as well as the amount of reported net income. In addition, measurements of ineffectiveness of hedging relationships are subject to interpretations and estimations, and any differences may result in material changes to our results of operations. The fair values of derivative assets and liabilities include adjustments for market liquidity, counterparty credit quality, and other deal specific factors, where appropriate. The fair values of derivative assets and liabilities traded in the over-the-counter market are determined using quantitative models that require the use of multiple market inputs including interest rates, prices, and indices to generate continuous yield or pricing curves and volatility factors. The predominance of market inputs are actively quoted and can be validated through external sources. Estimation risk is greater for derivative financial instruments that are either option-based or have longer maturity dates where observable market inputs are less readily available or are unobservable, in which case quantitative based extrapolations of rate, price, or index scenarios are used in determining fair values. As of December 31, 2017 (Successor Company), the fair value of derivatives reported on our balance sheet in “other long-term investments” and “other liabilities” was $629.5 million and $906.0 million , respectively. Of those derivative assets and liabilities, $160.5 million and $597.6 million , respectively, were Level 3 fair values determined by quantitative models.

Evaluation of Other-Than-Temporary Impairments - One of the significant estimates related to available-for-sale and held-to-maturity securities is the evaluation of investments for other-than-temporary impairments. If a decline in the fair value of an available-for-sale or held-to-maturity security is judged to be other-than-temporary, the security’s basis is adjusted, and an other-than-temporary impairment is recognized through a charge in the statement of income. The portion of this other-than-temporary impairment related to credit losses on a security is recognized in earnings, while the non-credit portion, representing the difference between fair value and the discounted expected future cash flows of the security, is recognized within other comprehensive income (loss). The fair value of the other-than-temporarily impaired investment becomes its new cost basis on the date an other-than-temporary impairment is recognized. For fixed maturities, we accrete the new cost basis to par or to the estimated future value over the expected remaining life of the security by adjusting the security’s future yields, assuming that future expected cash flows on the securities can be properly estimated.

Determining whether a decline in the current fair value of invested assets is other-than-temporary is both objective and subjective, and can involve a variety of assumptions and estimates, particularly for investments that are not actively traded in established markets. For example, assessing the value of certain investments requires that we perform an analysis of expected future cash flows, including rates of prepayments. Other investments, such as collateralized mortgage or bond obligations, represent selected tranches of a structured transaction, supported in the aggregate by underlying investments in a wide variety of issuers. Management considers a number of factors when determining the impairment status of individual securities. These include the economic condition of various industry segments and geographic locations and other areas of identified risks. Although it is possible for the impairment of one investment to affect other investments, we engage in ongoing risk management to safeguard against and limit any further risk to our investment portfolio. Special attention is given to correlative risks within specific industries, related parties, and business markets.

For certain securitized financial assets with contractual cash flows, including other asset-backed securities, the ASC Investments-Other Topic requires us to periodically update our best estimate of cash flows over the life of the security. If the fair value of a securitized financial asset is less than its cost or amortized cost and there has been a decrease in the present value of the estimated cash flows since the last revised estimate, considering both timing and amount, an other-than-temporary impairment charge is recognized. Estimating future cash flows is a quantitative and qualitative process that incorporates information received from third party sources along with certain internal assumptions and judgments regarding the future performance of the underlying collateral. Projections of expected future cash flows may change based upon new information regarding the performance of the underlying collateral. In addition, we consider our intent and ability to retain a temporarily depressed security until recovery.

Each quarter we review investments with unrealized losses and test for other-than-temporary impairments. We analyze various factors to determine if any specific other-than-temporary asset impairments exist. These include, but are not limited to: 1) actions taken by rating agencies, 2) default by the issuer, 3) the significance of the decline, 4) an assessment of our intent to sell the security (including a more likely than not assessment of whether we will be required to sell the security) before recovering the security’s amortized cost, 5) the duration of the decline, 6) an economic analysis of the issuer’s industry, and 7) the financial strength, liquidity, and recoverability of the issuer. Management performs a security by security review each quarter in evaluating the need for any other-than-temporary impairments. Although no set formula is used in this process, the investment performance, collateral position, and continued viability of the issuer are significant measures considered, and in some cases, an analysis regarding our expectations for recovery of the security’s entire amortized cost basis through the receipt of future cash flows is performed. Once a determination has been made that a specific other-than-temporary impairment exists, the security’s basis is adjusted, and an other-than-temporary impairment is recognized. Equity securities that are other-than-temporarily impaired are written down to fair value with a realized loss recognized in earnings. Other-than-temporary impairments to debt securities that we do not intend to sell and do not expect to be required to sell before recovering the security’s amortized cost are written down to discounted expected future cash flows (“post impairment cost”), and credit losses are recorded in earnings. The difference between the securities’ discounted expected future cash flows and the fair value of the securities on the impairment date is recognized in other comprehensive income (loss) as a non-credit portion impairment. When calculating the post impairment cost for residential mortgage-backed securities (“RMBS”), commercial mortgage-backed securities (“CMBS”), and other asset-backed securities (collectively referred to as asset-backed securities or “ABS”), we consider all known market data related to cash flows to estimate future cash flows. When calculating the post impairment cost for corporate debt securities, we consider all contractual cash flows to estimate expected future cash flows. To calculate the post impairment cost, the expected future cash flows are discounted at the original purchase yield. Debt securities that we intend to sell or expect to be required to sell before recovery are written down to fair value with the change recognized in earnings.

Our specific accounting policies related to our invested assets are discussed in Note 2, Summary of Significant Accounting Policies , and Note 5,  Investment Operations , to the consolidated financial statements. As of December 31, 2017 (Successor Company), we held $39.5 billion of available-for-sale investments, including $21.6 billion in investments with a gross unrealized loss of $680.5 million, and $2.7 billion of held-to-maturity investments with a gross unrecognized holding loss of $19.2 million.

Reinsurance - For each of our reinsurance contracts, we must determine if the contract provides indemnification against loss or liability relating to insurance risk, in accordance with applicable accounting standards. We must review all contractual features, particularly those that may limit the amount of insurance risk to which we are subject or features that delay the timely reimbursement of claims. If we determine that the possibility of a significant loss from insurance risk will occur only under remote circumstances, we record the contract under a deposit method of accounting with the net amount payable/receivable reflected in other reinsurance assets or liabilities on our consolidated balance sheets. Fees earned on the contracts are reflected as other revenues, as opposed to premiums, in our consolidated statements of income.

Our reinsurance is ceded to a diverse group of reinsurers. The collectability of reinsurance is largely a function of the solvency of the individual reinsurers. We perform periodic credit reviews on our reinsurers, focusing on, among other things, financial capacity, stability, trends, and commitment to the reinsurance business. We also require assets in trust, letters of credit, or other acceptable collateral to support balances due from reinsurers not authorized to transact business in the applicable jurisdictions. Despite these measures, a reinsurer’s insolvency, inability, or unwillingness to make payments under the terms of a reinsurance contract could have a material adverse effect on our results of operations and financial condition. As of December 31, 2017 (Successor Company), our third party reinsurance receivables amounted to $4.8 billion. These amounts include ceded reserve balances and ceded benefit payments.

We account for reinsurance as required by FASB guidance under the ASC Financial Services Topic as applicable. In accordance with this guidance, costs for reinsurance are amortized as a level percentage of premiums for traditional life products and a level percentage of estimated gross profits for universal life products. Accordingly, ceded reserve and deferred acquisition cost balances are established using methodologies consistent with those used in establishing direct policyholder reserves and deferred acquisition costs. Establishing these balances requires the use of various assumptions including investment returns,

mortality, persistency, and expenses. The assumptions made for establishing ceded reserves and ceded deferred acquisition costs are consistent with those used for establishing direct policyholder reserves and deferred acquisition costs.

Assumptions are also made regarding future reinsurance premium rates and allowance rates. Assumptions made for mortality, persistency, and expenses are consistent with those used for establishing direct policyholder reserves and deferred acquisition costs. Assumptions made for future reinsurance premium and allowance rates are consistent with rates provided for in our various reinsurance agreements. For certain of our reinsurance agreements, premium and allowance rates may be changed by reinsurers on a prospective basis, assuming certain contractual conditions are met (primarily that rates are changed for all companies with which the reinsurer has similar agreements). To the extent that future rates are modified, these assumptions would be revised and both current and future results would be affected. For traditional life products, assumptions are not changed unless projected future revenues are expected to be less than future expenses. For universal life products, assumptions are periodically updated whenever actual experience and/or expectations for the future differ from that assumed. When assumptions are updated, changes are reflected in the income statement as part of an “unlocking” process. During the year ended December 31, 2017 (Successor Company), we adjusted our estimates of future reinsurance costs in both the Acquisitions and Life Marketing segments, resulting in an approximate $28.9 million unfavorable impact.

Deferred Acquisition Costs and Value of Business Acquired - In conjunction with the Merger, a portion of the purchase price was allocated to the right to receive future gross profits from cash flows and earnings of the Company’s insurance policies and investment contracts as of the date of the Merger. This intangible asset, called value of business acquired (“VOBA”), is based on the actuarially estimated present value of future cash flows from the Company’s insurance policies and investment contracts in-force on the date of the Merger. The estimated present value of future cash flows used in the calculation of the VOBA is based on certain assumptions, including mortality, persistency, expenses, and interest rates that the Company expects to experience in future years. The Company amortizes VOBA in proportion to gross premiums for traditional life products, or estimated gross margins (“EGMs”) for participating traditional life products within the MONY block. For interest sensitive products, the Company uses various amortization bases including expected gross profits (“EGPs”), revenues, or insurance in-force. VOBA amortization included accrued interest credited to account balances of up to approximately 7.8%. VOBA is subject to annual recoverability testing.

We incur significant costs in connection with acquiring new insurance business. Portions of these costs, which are determined to be incremental direct costs associated with successfully acquired policies and coinsurance of blocks of policies, are deferred and amortized over future periods. The recovery of such costs is dependent on the future profitability of the related policies. The amount of future profit is dependent principally on investment returns, mortality, morbidity, persistency, and expenses to administer the business and certain economic variables, such as inflation. These costs are amortized over the expected lives of the contracts, based on the level and timing of either gross profits or gross premiums, depending on the type of contract. Revisions to estimates result in changes to the amounts expensed in the reporting period in which the revisions are made and could result in the impairment of the asset and a charge to income if estimated future profits are less than the unamortized deferred amounts. As of December 31, 2017 (Successor Company), we had a deferred acquisition costs (“DAC”) and VOBA asset of $2.2 billion .

We periodically review and update as appropriate our key assumptions on certain life and annuity products including future mortality, expenses, lapses, premium persistency, investment yields, and interest spreads. Changes to these assumptions result in adjustments which increase or decrease DAC and VOBA amortization and/or benefits and expenses.

Goodwill - Accounting for goodwill requires an estimate of the future profitability of the associated lines of business within our operating segments to assess the recoverability of the capitalized acquisition goodwill. We evaluate the carrying value of goodwill at the segment (or reporting unit) level at least annually and between annual evaluations if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. Such circumstances could include, but are not limited to: 1) a significant adverse change in legal factors or in business climate, 2) unanticipated competition, or 3) an adverse action or assessment by a regulator. When evaluating whether goodwill is impaired, we first determine through qualitative analysis whether relevant events and circumstances indicate that it is more likely than not that segment goodwill balances are impaired as of the testing date. If the qualitative analysis does not indicate that an impairment of segment goodwill is more likely than not then no other specific quantitative impairment testing is required.

If it is determined that it is more likely than not that impairment exists, we perform a quantitative assessment and compare our estimate of the fair value of the reporting unit to which the goodwill is assigned to the reporting unit’s carrying amount, including goodwill. We utilize a fair value measurement (which includes a discounted cash flows analysis) to assess the carrying value of the reporting units in consideration of the recoverability of the goodwill balance assigned to each reporting unit as of the measurement date. Our material goodwill balances are attributable to certain of our operating segments (which are each considered to be reporting units). The cash flows used to determine the fair value of our reporting units are dependent on a number of significant assumptions. Our estimates, which consider a market participant view of fair value, are subject to change given the inherent uncertainty in predicting future results and cash flows, which are impacted by such things as policyholder behavior, competitor pricing, capital limitations, new product introductions, and specific industry and market conditions.

The balance recognized as goodwill is not amortized, but is reviewed for impairment on an annual basis, or more frequently as events or circumstances may warrant, including those circumstances which would more likely than not reduce the fair value of our reporting units below its carrying amount. During the fourth quarter of 2017, we performed our annual qualitative evaluation of goodwill based on the circumstances that existed as of October 1, 2017 (Successor Company) and determined that there was no indication that its segment goodwill was more likely than not impaired, thus no quantitative assessment was performed and no adjustment to impair goodwill was necessary. We have assessed whether events have occurred subsequent to October 1, 2017 that would impact our conclusion and no such events were identified. As of December 31, 2017 (Successor Company), we had goodwill of $793.5 million.

Insurance Liabilities and Reserves - Establishing an adequate liability for our obligations to policyholders requires the use of assumptions. Estimating liabilities for future policy benefits on life and health insurance products requires the use of assumptions relative to future investment yields, mortality, morbidity, persistency, and other assumptions based on our historical experience, modified as necessary to reflect anticipated trends and to include provisions for possible adverse deviation. Determining liabilities for our property and casualty insurance products also requires the use of assumptions, including the frequency and severity of claims, and the effectiveness of internal processes designed to reduce the level of claims. Our results depend significantly upon the extent to which our actual claims experience is consistent with the assumptions that we used in determining our reserves and pricing our products. Our reserve assumptions and estimates require significant judgment and, therefore, are inherently uncertain. We cannot determine with precision the ultimate amounts that we will pay for actual claims or the timing of those payments. In addition, we fair value the liability related to our equity indexed annuity product at each balance sheet date, with changes in the fair value recorded through earnings. Changes in this liability may be significantly affected by interest rate fluctuations. As of December 31, 2017 (Successor Company), we had total policy liabilities and accruals of $31.7 billion .

Guaranteed Minimum Death Benefits - We establish liabilities for guaranteed minimum death benefits ("GMDB") on our VA products. The methods used to estimate the liabilities employ assumptions about mortality and the performance of equity markets. We assume age-based mortality from the Ruark 2015 ALB adjusted table for company experience. Future declines in the equity market would increase our GMDB liability. Differences between the actual experience and the assumptions used result in variances in profit and could result in losses. Our GMDB as of December 31, 2017 (Successor Company), is subject to a dollar-for-dollar reduction upon withdrawal of related annuity deposits on contracts issued prior to January 1, 2003. We reinsure certain risks associated with the GMDB to Shades Creek Captive Insurance Company (“Shades Creek”), a direct wholly owned insurance subsidiary of PLC. As of December 31, 2017 (Successor Company), the GMDB liability, including the impact of reinsurance, was $26.6 million .

Guaranteed Living Withdrawal Benefits —We establish reserves for guaranteed living withdrawal benefits ("GLWB") on our VA products. The GLWB is valued in accordance with FASB guidance under the ASC Derivatives and Hedging Topic which utilizes the valuation technique prescribed by the ASC Fair Value Measurements and Disclosures Topic, which requires the embedded derivative to be recorded at fair value using current implied volatilities for the equity indices. The fair value of the GLWB is impacted by equity market conditions and can result in the GLWB embedded derivative being in an overall net asset or net liability position. In times of favorable equity market conditions the likelihood and severity of claims is reduced and expected fee income increases. Since claims are generally expected later than fees, these favorable equity market conditions can result in the present value of fees being greater than the present value of claims, which results in a net GLWB embedded derivative asset. In times of unfavorable equity market conditions the likelihood and severity of claims is increased and expected fee income decreases and can result in the present value of claims exceeding the present value of fees resulting in a net GLWB embedded derivative liability. The methods used to estimate the embedded derivatives employ assumptions about mortality, lapses, policyholder behavior, equity market returns, interest rates, and market volatility. We assume age-based mortality from the Ruark 2015 ALB adjusted table for company experience. Differences between the actual experience and the assumptions used result in variances in profit and could result in losses. As of December 31, 2017 (Successor Company), our net GLWB liability held was $15.5 million.

Pension and Other Postretirement Benefits - Determining PLC’s obligations to employees under its pension plans and other postretirement benefit plans requires the use of assumptions. The calculation of the liability and expense related to PLC’s benefit plans incorporates the following significant assumptions:

See Note 17, Employee Benefit Plans , to the consolidated financial statements included in this report for further information on this plan.

Deferred Taxes and Uncertain Tax Positions - Deferred federal income taxes arise from the recognition of temporary differences between the basis of assets and liabilities determined for financial reporting purposes and the basis determined for income tax purposes. Such temporary differences are principally related to net unrealized gains (losses), deferred policy acquisition costs and value of business acquired, and future policy benefits and claims. Deferred tax assets and liabilities are measured using the enacted tax rates expected to be in effect when such differences reverse. On December 22, 2017, the President of the United States signed into law the Tax Cuts and Jobs Act (the "Tax Reform Act"). The legislation significantly changes U.S. tax law by, among other things, lowering the corporate income tax rate. The Tax Reform Act permanently reduces the U.S. corporate income tax rate from a maximum of 35% to a flat 21% rate, effective January 1, 2018. Also on December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Reform Act. We have recognized the provisional tax impacts related to the revaluation of deferred tax assets and included these amounts in our consolidated financial statements for the year ended December 31, 2017 and disclosed such items which may be recorded on a provisional basis. The ultimate impact may differ from these provisional amounts, possibly materially, due to, among other things, additional regulatory guidance that may be issued, additional analysis, and resulting changes in interpretations and assumptions we have made. Any adjustments to these provisional amounts will be reported as a component of income tax expense (benefit) in the reporting period in which any such adjustments are determined. The accounting is expected to be complete by December 31, 2018.

We evaluate deferred tax assets for impairment quarterly at the taxpaying component level within each tax jurisdiction. Deferred tax assets are reduced by a valuation allowance if, based on the weight of available evidence, it is more likely than not that some or all of such assets will not be realized as future reductions of current taxes. In determining the need for a valuation allowance we consider the reversal of existing temporary differences, future taxable income, and tax planning strategies. The

determination of any valuation allowance requires management to make certain judgments and assumptions regarding future operations that are based on our historical experience and our expectations of future performance.

The ASC Income Taxes Topic prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of an expected or actual uncertain income tax return position and provides guidance on disclosure. Additionally, in order for us to recognize any degree of benefit in our financial statements from such a position, there must be a greater than 50 percent chance of success with the relevant taxing authority with regard to that position. In making this analysis, we assume that the taxing authority is fully informed of all of the facts regarding any issue. Our judgments and assumptions regarding uncertain tax positions are subject to change over time due to the enactment of new legislation, the issuance of revised or new regulations or rulings by the various tax authorities, and the issuance of new decisions by the courts.

Contingent Liabilities - The assessment of potential obligations for tax, regulatory, and litigation matters inherently involves a variety of estimates of potential future outcomes. We make such estimates after consultation with our advisors and a review of available facts. However, there can be no assurance that future outcomes will not differ from management’s assessments.