Capitalized terms used in this Item 7 and not otherwise defined have the meanings ascribed to such terms under the caption "Important Defined Terms Used in this Form 10-K" which immediately precedes Part I of this Form 10-K.

OVERVIEW

State Auto Financial is a property and casualty insurance holding company primarily engaged in writing both personal and business lines of insurance. The State Auto Group markets a broad line of property and casualty insurance products through independent agencies in 33 states.

State Auto Financial's subsidiaries are State Auto P&C, Milbank, Farmers, SA Ohio and SA National, each of which is a property and casualty insurance company; Stateco, which provides investment management services to affiliated insurance companies; S.I.S., a developer and seller of insurance-related software; and 518 PML, which owns and leases property to affiliated companies. S.I.S. and 518 PML are not material to our total operations.

State Auto Mutual owns approximately 64% of State Auto Financial's outstanding common shares.

State Auto P&C, Milbank, Farmers and SA Ohio ("STFC Pooled Companies") participate in a quota share reinsurance pooling arrangement (the "Pooling Arrangement") with State Auto Mutual, SA Florida, SA Wisconsin, Meridian Security, Meridian Citizens Mutual, Beacon National, Patrons Mutual and Litchfield, which together with STFC Pooled Companies are referred to as the "Pooled Companies." The Pooled Companies provide a broad line of property and casualty insurance, such as standard personal and commercial automobile, homeowners and farmowners, commercial multi-peril, workers' compensation, general liability and property insurance. SA National, which is not included in the Pooling Arrangement, provides nonstandard personal automobile insurance. Our Pooled Companies and SA National are rated A+ (Superior) by the A.M. Best Company.

Under the Pooling Arrangement, State Auto Mutual assumes premiums, losses and expenses from each of the remaining Pooled Companies and in turn cedes to each of the Pooled Companies a specified portion of premiums, losses and expenses based on each of the Pooled Companies' respective pooling percentages. State Auto Mutual then retains the balance of the pooled business. The participation percentage for the STFC Pooled Companies has remained at 80% since 2001. In general, the Pooling Arrangement covers all the property and casualty insurance written by the Pooled Companies except State Auto Mutual's voluntary assumed reinsurance.

As of January 1, 2008, the Pooling Arrangement was changed (the "Pooling Change") to add Beacon National, Patrons Mutual and Litchfield as participants and the middle market business written by companies in the State Auto Group to the Pooling Arrangement (collectively referred to as the "New Pool Business"). Concurrently with the addition of Patrons Mutual, Litchfield and Beacon National, the participating percentages of certain participants were adjusted as presented in the table below; however the STFC Pooled Companies continue to maintain an overall share of the pool at 80% and State Auto Mutual and its subsidiaries and affiliates continue to maintain 20%. In conjunction with this modification, the STFC Pooled Companies received approximately $92.0 million in cash from State Auto Mutual and its subsidiaries and affiliates for net liabilities assumed on this date.

The following table presents the impact on our balance sheet on January 1, 2008, relating to the Pooling Change:

                   ($ millions)
                   Losses and loss expenses payable    $  51.3
                   Unearned premiums                      53.6
                   Deferred policy acquisition costs     (12.9 )

                   Net cash received                   $  92.0

The following table sets forth a chronology of the participants and participation percentages for the Pooling Arrangement:

                                             2008     2007 & 2006
                  STFC Pooled Companies:
                  State Auto P&C             59.0 %          59.0 %
                  Milbank                    17.0            17.0
                  Farmers                     3.0             3.0
                  SA Ohio                     1.0             1.0

                  Subtotal                   80.0            80.0

                  Mutual Pooled Companies:
                  State Auto Mutual          19.0            19.5
                  SA Wisconsin                0.0             0.0
                  SA Florida                  0.0             0.0
                  Meridian Security           0.0             0.0
                  Meridian Citizens Mutual    0.5             0.5
                  Beacon National             0.0             N/A
                  Patrons Mutual              0.4             N/A
                  Litchfield                  0.1             N/A

                  Subtotal                   20.0            20.0

Reflecting the manner in which we manage our business and report our results internally to our principal operating decision makers, our significant reportable segments are personal insurance, business insurance (collectively the "insurance segments" or "our insurance segments") and investment operations. The insurance segments distribute their products through the independent agency system across 33 states. Each is managed separately based on the type of customers served, products provided or services offered. The personal insurance segment provides primarily personal auto (standard and nonstandard) and homeowners to the personal insurance market. The business insurance segment provides primarily commercial auto, commercial multi-peril, fire and allied lines, other and product liability and workers' compensation insurance to small to medium sized businesses within the commercial insurance market. The investment operations segment, managed by Stateco, provides investment services for our Company's invested assets.

We evaluate the performance of our insurance segments using industry financial measurements determined based on Statutory Accounting Principles ("SAP"), and certain measures determined under Generally Accepted Accounting Principles ("GAAP"). We evaluate our investment operations segment based on investment returns of assets managed. Financial information about our segments is set forth in this Item 7 and in Note 15 to our Consolidated Financial Statements included in Item 8 of this Form 10-K.

EXECUTIVE SUMMARY

The results of our operations from year-to-year and quarter-to-quarter are primarily driven by our ability to generate revenue through selecting and pricing risks in a manner that permits premium growth without adversely affecting underwriting profits, and disciplined investment strategy. We also recognize that our results will be periodically impacted, sometimes significantly, by the occurrence of catastrophic events, which are generally beyond our control.

• Premium Growth/Underwriting Profitability: The property and casualty insurance industry is highly cyclical. Our industry has been historically characterized by periods of intense price competition due to excess underwriting capacity, as well as periods of shortages of underwriting capacity that result in increased prices and more favorable underwriting terms. During periods of excess underwriting capacity, some property and casualty insurers attempt to generate additional top line growth by setting their prices at levels inappropriate for the risk underwritten. While in the short term this may result in additional revenues, this action compromises their long term underwriting profitability. Our strategy is to insure personal and small-to-medium business risks while adhering to disciplined and consistent underwriting principles through all market cycles. Over the last several months the industry has been moving from soft market conditions in which insurer competition has been intense and there has been pressure to lower rates toward hard market conditions in which insurers tend to raise prices. We have been monitoring this situation and have responded in ways consistent with our goals not to compromise underwriting profitability and to protect the interests of our stakeholders.

Our underwriting principles include insistence on selecting and retaining business based on the merits of each account and a dedication to cost-based pricing, where each line of business is priced to generate a profit. It is our intention to set pricing levels so that no line of business, or classification within major lines, subsidizes another line or classification. We are committed to achieving an underwriting profit through all market cycles, even at the expense of periodic slowdowns in written and earned premiums. We will not compromise underwriting profitability for top line growth. We believe that we can implement periodic rate changes in most states and remain an attractive market to our policyholders and independent agents by stressing the strengths we bring to the marketplace. These strengths include stability, financial soundness, prompt and fair claims service, and technology which make it easier for the agent to do business with the State Auto Group and provide substantial value to our customers. We carefully monitor writing insurance in states that we believe present difficult legislative, judicial and/or regulatory environments for the insurance industry.

• Investment Strategy: We have a disciplined approach to our investment strategy that emphasizes the quality of our fixed maturity portfolio, which comprised 91.3% of our total portfolio at fair value at December 31, 2008, and includes primarily investment grade securities. The majority of our fixed maturity portfolio is invested in municipal bonds to recognize the tax advantages available from municipal bond income. In addition, we believe that our credit risk exposure is reduced by investing in high quality municipal bonds that are diversified by issuer and state. Our internally managed equity portfolio, which comprised 6.7% of our total portfolio at fair value at December 31, 2008, emphasizes large-cap, dividend-paying companies selected based upon their potential for appreciation as well as ability to continue paying dividends. During 2007, we began to diversify our equity portfolio and utilize outside managers to invest in U.S. small-cap equities and international funds. Diversifying our portfolio into small-cap equities and international funds was designed to achieve a greater total return with reduced volatility. In 2008 almost all of the asset classes experienced a decline in fair value, and our portfolio was not immune to this broad-based decline. We believe that in most market cycles diversification of our portfolio will be beneficial to us and we plan to continue to maintain a diversified portfolio.

• Loss Reserves: We maintain reserves for the eventual payment of losses and loss expenses for both reported claims and incurred claims that have not yet been reported. Loss reserves are management's best estimate at a given point in time of what we expect to pay to settle all claims incurred as of the end of the accounting period, based on facts, circumstances and historical trends then known. Although

• Catastrophic Events: We are exposed to claims arising out of catastrophic events. Catastrophe losses can and do cause substantial volatility in our financial results for any fiscal quarter or year. Catastrophes can be caused by various natural events, including hurricanes, hailstorms, tornadoes, windstorms, earthquakes, severe winter weather and fires, none of which are within our control. The frequency and severity of catastrophes are inherently unpredictable. The magnitude of loss from a catastrophe is a function of the severity of the event and the total amount of insured exposure in the affected area. Catastrophes, to which we are exposed, including hurricanes, earthquakes and other perils, may be severe and produce significant loss. We are also exposed to significant loss from less severe catastrophes when they affect large geographic areas or areas that are heavily populated Although catastrophes can cause losses in a variety of our property and casualty lines, most of our catastrophe claims in the past have related to homeowners, allied lines and commercial multiple peril coverages. We deploy specific strategies designed to mitigate our exposure to catastrophe losses, which include obtaining reinsurance. We continually seek to diversify our business on a geographic basis. The number of states we actively operate in has increased from 27 states in 2003 to 33 states as of December 31, 2008. As we begin 2009, the concentration of our direct written premiums for our property and casualty operations in our largest five states has decreased from 48% for the year ended December 31, 2003, to approximately 44% at December 31, 2008. Our catastrophe management strategies are designed to mitigate our exposure to earthquakes and hurricanes.

In addition to our adherence to our cost-based pricing, investment and catastrophe risk mitigation strategies discussed above, our management focuses on several other key areas with the intention of continually improving the results of our operations and financial results, including the following:

• Claims Service: We believe an important element of our success is our focus on claims service. We expect our claim service to be fair, fast and friendly. The role of the claims division is to deliver the promise that we and the independent agent made to the insured. We have the capability of receiving claims 24 hours a day, seven days a week. Claims may be reported to our Claims Contact Center, to the policyholder's independent agent or via the Internet at www.StateAuto.com. We make a pledge to our policyholders to try and make contact with them within two hours of a claim being assigned to a claims handler (except in catastrophe loss situations). In addition, we established internal claims catastrophe teams to enhance our response to policyholders in these loss situations.

• Independent Insurance Agent Network: We offer our products through over 3,330 agencies in 33 states. We believe the success of our independent insurance agent network, which is our only distribution channel, grows out of our commitment to promote and foster close working relationships with our agents. We seek relationships with agencies where we will be one of their top three insurers, measured on the basis of direct premiums written, for the type of business we desire. Our agents' compensation package includes competitive commission rates and other sales inducements designed to maintain and enhance relationships with existing independent agents as well as to attract new independent agents. We provide our agents with a co-operative advertising program, sales training programs, contingent commissions, travel incentives and agency recognition. We continually monitor our agencies for compatibility with us, taking into account factors such as loss ratio, premium volume, business profiles and relationship history. This allows us to be proactive in helping our agents grow their book of business with us profitably and, thus, enhance the long-term value of our relationship. Our senior management meets frequently with agents to encourage mutual growth and demonstrate our commitment. We believe each of these elements creates a relationship that has resulted in our independent insurance agents placing quality insurance business with us.

In 2008, our business insurance segment increased the functionality of our bizXpressSM portal, by adding support for another line of business. Our independent agents who issue business auto policies can now accurately quote and produce proposals for their clients. In addition, during 2008 our independent agents benefited from the addition of more robust reports to analyze claims data for their insureds. These reports are easily requested via the agent's portal.

During the course of 2008, improvements in our project management, quality assurance, and IT governance all improved our technology efficiency and effectiveness. These improvements help us maximize the business results we ultimately receive from our technology investments.

• Innovate SA: In the last two quarters of 2008, we launched a formal company-wide plan called Innovate SA, which is intended to reduce expenses, enhance revenues and improve margins. Innovate SA is comprised of various initiatives, including changes to our field structure, business processes and product changes. Innovate SA began with an idea generation phase that involved our 2000+ associates and was followed by an evaluation phase that was led by senior managers in our business units. The idea generation and evaluation phases were completed for the most part in the fourth quarter of 2008, and 480 separate actions have been approved for implementation. Our expectation is that implementation will take place over the next three fiscal years.

CRITICAL ACCOUNTING POLICIES

Our significant accounting policies are more fully described in Note 1 of the Notes to our Consolidated Financial Statements included in Item 8 of this Form 10-K. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet, revenues and expenses for the period then ended and the financial entries in the accompanying notes to the financial statements. Such estimates and assumptions could change in the future, as more information becomes known which could impact the amounts reported and disclosed in this Item 7. We have identified the policies and estimates described below as critical to our business operations and the understanding of the results of our operations.

Investments

Our fixed maturity, equity security and certain other invested asset investments are classified as available-for-sale and carried at fair value. The unrealized holding gains or losses, net of applicable deferred taxes, are shown as a separate component of stockholders' equity as "accumulated other comprehensive loss," and as such are not included in the determination of net income. Investment income is recognized when earned, and capital gains and losses are recognized when investments are sold.

We regularly monitor our investment portfolio for declines in value that are other-than-temporary impaired ("OTTI"), an assessment which requires significant management judgment regarding the evidence known. Such judgments could change in the future as more information becomes known which could negatively impact the amounts reported herein. We consider many factors when assessing our investments for OTTI which include: (1) the financial condition and near-term prospects of the issuer, including any specific events that may influence the issuer's operations; (2) the length of time and/or the depth of decline below cost;
(3) our ability and intent to hold the security through its near term recovery period; and (4) the ability of the fair value to recover to cost in

the near term. When a security in our investment portfolio has been determined to have a decline in fair value that is other-than-temporary we adjust the cost basis of the security to fair value. This results in a charge to earnings as a realized loss, which is not reversed for subsequent recoveries in fair value. Future increases or decreases in fair value, if not other-than-temporary, are included in other comprehensive income or loss.

Fair Value Measurements

On January 1, 2008, we adopted SFAS No. 157, "Fair Value Measurements" ("SFAS 157"), which was issued by the Financial Accounting Standards Board ("FASB") in September 2006. For financial statement elements currently required to be measured at fair value, SFAS 157 defines fair value, establishes a framework for measuring fair value under GAAP and enhances disclosures about fair value measurements. The new definition of fair value focuses on the price that would be received to sell the asset or paid to transfer the liability ("exit price") regardless of whether an observable liquid market price exists. An exit price valuation includes margins for risk even if the margins are not observable.

SFAS 157 establishes a fair value hierarchy that categorizes the inputs to valuation techniques which are used to measure fair value into three broad levels as defined below:

• Level 1 includes observable inputs which reflect quoted prices for identical assets or liabilities in active markets at the measurement date.

• Level 2 includes observable inputs for assets or liabilities other than quoted prices included in Level 1 and it includes valuation techniques which use prices for similar assets and liabilities.

• Level 3 includes unobservable inputs which reflect the reporting entity's estimates of the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk).

Deferred Acquisition Costs

Acquisition costs, consisting of commissions, premium taxes and certain underwriting expenses relating to the production of property and casualty business, are deferred and amortized over the same period in which the related premiums are earned. The method followed for computing the acquisition costs limits the amount of such deferred costs to their estimated realizable value. In determining estimated realizable value, the computation gives effect to the premium to be earned, losses and loss expenses expected to be incurred, and certain other costs expected to be incurred as premium is earned. These amounts are based on estimates, and accordingly, the actual realizable value may vary from the estimated realizable value.

Losses and Loss Expenses Payable

Losses and loss expenses payable are management's best estimates at a given point in time of what we expect to pay to settle all claims incurred as of the end of the accounting period, based on known facts, circumstances and historical trends. Reserves for reported losses are established on either a case-by-case or formula basis depending on the type and circumstances of the loss. The case-by-case reserve amounts are determined by claims adjusters based on our reserving practices, which take into account the type of risk, the circumstances surrounding each claim and applicable policy provisions. The formula reserves are based on historical data for similar claims with provision for trend changes caused by inflation. Case and formula basis loss reserves are reviewed on a regular basis, and as new data becomes available, estimates are updated resulting in adjustments to loss reserves. Generally, reported losses initially reserved on a formula basis and not settled after six months are case reserved at that time.

Loss and loss expense reserves for incurred claims that have not yet been reported ("IBNR") are estimated based on many variables including historical and statistical information, inflation, legal developments, storm loss estimates, and economic conditions. The process for calculating IBNR is to develop an estimate of the ultimate

losses incurred, and subtract all amounts already paid or held as formula or case reserves. Although we use many internal and external resources, as well as multiple established methodologies to calculate IBNR, there is no method for determining the exact ultimate liability. For a further discussion regarding our losses and loss expense reserves and our reserving methods see "Other-Loss and Loss Expense Reserves" included in this Item 7.

Pension and Postretirement Benefit Obligations

Pension and postretirement benefit obligations are long term in nature and require management's judgment in estimating the factors used to determine these amounts. We review these factors annually, including the discount rate and expected long term rate of return on plan assets. Because these obligations are based on estimates which could change, the ultimate benefit obligation could be different from the amount estimated. For a further discussion regarding our pension and postretirement benefit obligations see "Other-Employee Benefit Plans" included in this Item 7.

Share-Based Compensation

We have share-based compensation plans which authorize the granting of various equity-based incentives including stock options, restricted stock and restricted share units to employees and non-employee directors. The expense for these equity-based incentives is based on their fair value at date of grant or each reporting date and amortized over their vesting period. The fair value of each stock option granted is estimated on the date of grant or each reporting date using the Black-Scholes closed-form pricing model. The pricing model requires assumptions such as the expected life of the option and expected volatility of our stock over the expected life of the option, which significantly impacts the assumed fair value. We use historical data to determine these assumptions and if these assumptions change significantly for future grants, share-based compensation expense will fluctuate in future periods.

Other

Other items that could have a significant impact on the financial statements include the risks and uncertainties listed in Item 1A of this Form 10-K under "Risk Factors." Actual results could differ materially using different estimates and assumptions, or if conditions are significantly different in the future.

RESULTS OF OPERATIONS

Summary

The following table summarizes certain key performance indicators used to manage
our operations for the years ended December 31, 2008, 2007 and 2006,
respectively:



. . .