Spreadsheet: 07296c68-386c-439e-ae6d-c17a93d8cce3
Sheet: 51

Definitions of Non-GAAP Measures
We believe that investors’ understanding of Allstate’s performance is enhanced by our disclosure of the following non-GAAP measures.  Our methods for calculating these measures may differ from those used by other companies and therefore comparability may be limited.
Operating income (loss) is net income (loss), excluding:
- realized capital gains and losses, after-tax, except for periodic settlements and accruals on non-hedge derivative instruments, which are reported with realized capital gains and losses but included in operating income (loss),
- valuation changes on embedded derivatives that are not hedged, after-tax,
- amortization of deferred acquisition costs ("DAC") and deferred sales inducements (“DSI”), to the extent they resulted from the recognition of certain realized capital gains and losses or valuation changes on embedded derivatives that are not hedged, after-tax,
- business combination expenses and the amortization of purchased intangible assets, after-tax,
- gain (loss) on disposition of operations, after-tax, and
- adjustments for other significant non-recurring, infrequent or unusual items, when (a) the nature of the charge or gain is such that it is reasonably unlikely to recur within two years, or (b) there has been no similar charge or gain within the prior two years.
Net income (loss) is the GAAP measure that is most directly comparable to operating income (loss).   We use operating income (loss) as an important measure to evaluate our results of operations.  We believe that the measure provides investors with a valuable measure of the Company's ongoing
performance because it reveals trends in our insurance and financial services business that may be obscured by the net effect of realized capital gains and losses, valuation changes on embedded derivatives that are not hedged, business combination expenses and the amortization of purchased
intangible assets, gain (loss) on disposition of operations and adjustments for other significant non-recurring, infrequent or unusual items.  Realized capital gains and losses, valuation changes on embedded derivatives that are not hedged and gain (loss) on disposition of operations may vary significantly
between periods and are generally driven by business decisions and external economic developments such as capital market conditions, the timing of which is unrelated to the insurance underwriting process.  Consistent with our intent to protect results or earn additional income, operating income (loss)
includes periodic settlements and accruals on certain derivative instruments that are reported in realized capital gains and losses because they do not qualify for hedge accounting or are not designated as hedges for accounting purposes.  These instruments are used for economic hedges and to
replicate fixed income securities, and by including them in operating income (loss), we are appropriately reflecting their trends in our performance and in a manner consistent with the economically hedged investments, product attributes (e.g. net investment income and interest credited to contractholder
funds) or replicated investments.  Business combination expenses are excluded because they are non-recurring in nature and the amortization of purchased intangible assets is excluded because it relates to the acquisition purchase price and is not indicative of our underlying insurance business
results or trends. Non-recurring items are excluded because, by their nature, they are not indicative of our business or economic trends.  Accordingly, operating income (loss) excludes the effect of items that tend to be highly variable from period to period and highlights the results from ongoing operations
and the underlying profitability of our business.  A byproduct of excluding these items to determine operating income (loss) is the transparency and understanding of their significance to net income variability and profitability while recognizing these or similar  items may recur in subsequent periods.  Operating
income (loss) is used by management along with the other components of net income (loss) to assess our performance.  We use adjusted measures of operating income (loss) and operating income (loss) per diluted share in incentive compensation.  Therefore, we believe it is useful for investors
to evaluate net income (loss), operating income (loss) and their components separately and in the aggregate when reviewing and evaluating our performance.  We note that investors, financial analysts, financial and business media organizations and rating agencies utilize operating income (loss)
results in their evaluation of our and our industry's financial performance and in their investment decisions, recommendations and communications as it represents a reliable, representative and consistent measurement of the industry and the Company and management's performance.  We note that
the price to earnings multiple commonly used by insurance investors as a forward-looking valuation technique uses operating income (loss) as the denominator.  Operating income (loss) should not be considered as a substitute for net income (loss) and does not reflect the overall profitability of
our business.  A reconciliation of operating income (loss) to net income (loss) is provided in the schedule, "Contribution to Income".
Underwriting income (loss) is calculated as premiums earned, less claims and claims expense (“losses”), amortization of DAC, operating costs and expenses and restructuring and related charges as determined using GAAP.  Management uses this measure in its evaluation of the results
of operations to analyze the profitability of our Property-Liability insurance operations separately from investment results.  It is also an integral component of incentive compensation.  It is useful for investors to evaluate the components of income separately and in the aggregate when reviewing
performance.   Net income (loss) is the most directly comparable GAAP measure.  Underwriting income (loss) should not be considered as a substitute for net income (loss) and does not reflect the overall profitability of our business.  A reconciliation of Property-Liability underwriting
income (loss) to net income (loss) is provided in the schedule, "Property-Liability Results".
Combined ratio excluding the effect of catastrophes is a non-GAAP ratio, which is computed as the difference between two GAAP operating ratios:  the combined ratio and the effect of catastrophes on the combined ratio.  The most directly comparable GAAP measure is the combined ratio.
We believe that this ratio is useful to investors and it is used by management to reveal the trends in our Property-Liability business that may be obscured by catastrophe losses.  [NAME] losses cause our loss trends to vary significantly between periods as a result of their incidence of occurrence
and magnitude and can have a significant impact on the combined ratio.  We believe it is useful for investors to evaluate these components separately and in the aggregate when reviewing our underwriting performance.  The combined ratio excluding the effect of catastrophes should not be considered
a substitute for the combined ratio and does not reflect the overall underwriting profitability of our business.  A reconciliation of combined ratio excluding the effect of catastrophes to combined ratio is provided in the schedule, "Property-Liability Results".
Combined ratio excluding the effect of catastrophes, prior year reserve reestimates, business combination expenses and the amortization of purchased intangible assets ("underlying combined ratio") is a non-GAAP ratio, which is computed as the difference between four
GAAP operating ratios: the combined ratio, the effect of catastrophes on the combined ratio, the effect of prior year reserve reestimates on the combined ratio, the effect of business combination expenses and the amortization of purchased intangible assets on the combined ratio.   We believe that this ratio is useful
to investors and it is used by management to reveal the trends in our Property-Liability business that may be obscured by catastrophe losses, prior year reserve reestimates, business combination expenses and the amortization of purchased intangible assets.  [NAME] losses cause our loss
trends to vary significantly between periods as a result of their incidence of occurrence and magnitude, and can have a significant impact on the combined ratio.  Prior year reserve reestimates are caused by  unexpected loss development on historical reserves.  Business combination expenses and
the amortization of purchased intangible assets primarily relate to the acquisition purchase price and are not indicative of our underlying insurance business results or trends.  We believe it is useful for investors to evaluate these components separately and in the aggregate when reviewing our underwriting
performance.  We also provide it to facilitate a comparison to our outlook on the underlying combined ratio. The most directly comparable GAAP measure is the combined ratio.  The underlying combined ratio should not be considered as a substitute for the combined ratio and does not reflect the overall underwriting
profitability of our business.  A reconciliation of the underlying combined ratio to combined ratio is provided in the schedules, "Property-Liability Results", "Standard Auto Profitability Measures", "Homeowners Profitability Measures", "Allstate Brand Profitability Measures", "Encompass Brand Profitability Measures"
and "Esurance Brand Profitability Measures".
Operating income return on shareholders' equity is a ratio that uses a non-GAAP measure. It is calculated by dividing the rolling 12-month operating income by the average of shareholders’ equity at the beginning and at the end of the 12-months, after excluding the effect of unrealized net capital gains and
losses. Return on shareholders' equity is the most directly comparable GAAP measure.  We use operating income as the numerator for the same reasons we use operating income, as discussed above.  We use average shareholders' equity excluding the effect of unrealized net capital gains and losses for the
denominator as a representation of shareholders’ equity primarily attributable to the Company’s earned and realized business operations because it eliminates the effect of items that are unrealized and vary significantly between periods due to external economic developments such as capital market
conditions like changes in equity prices and interest rates, the amount and timing of which are unrelated to the insurance underwriting process.  We use it to supplement our evaluation of net income and return on shareholders' equity because it excludes the effect of items that tend to be highly variable from period to
period.  We believe that this measure is useful to investors and that it provides a valuable tool for investors when considered along with net income return on shareholders' equity because it eliminates the after-tax effects of realized and unrealized net capital gains and losses that can fluctuate significantly from period
to period and that are driven by economic developments, the magnitude and timing of which are generally not influenced by management.  In addition, it eliminates non-recurring items that are not indicative of our ongoing business or economic trends. A byproduct of excluding the items noted above to determine
operating income return on shareholders' equity from return on shareholders' equity is the transparency and understanding of their significance to return on shareholders' equity variability and profitability while recognizing these or similar items may recur in subsequent periods.  Therefore, we believe it is useful for
investors to have operating income return on shareholders' equity and return on shareholders' equity when evaluating our performance.  We note that investors, financial analysts, financial and business media organizations and rating agencies utilize operating income return on shareholders' equity results in their
evaluation of our and our industry’s financial performance and in their investment decisions, recommendations and communications as it represents a reliable, representative and consistent measurement of the industry and the company and management’s utilization of capital.  Operating income return on shareholders'
equity should not be considered as a substitute for return on shareholders' equity and does not reflect the overall profitability of our business.  A reconciliation of return on shareholders' equity and operating income return on shareholders' equity can be found in the schedule, "Return on Shareholders' Equity".
Book value per share, excluding the impact of unrealized net capital gains and losses on fixed income securities, is a ratio that uses a non-GAAP measure.  It is calculated by dividing shareholders’ equity after excluding the impact of unrealized net capital gains and losses
on fixed income securities and related DAC, DSI and life insurance reserves by total shares outstanding plus dilutive potential shares outstanding.  We use the trend in book value per share, excluding the impact of unrealized net capital gains and losses on fixed income securities, in conjunction with book value
per share to identify and analyze the change in net worth attributable to management efforts between periods.  We believe the non-GAAP ratio is useful to investors because it eliminates the effect of items that can fluctuate significantly from period to period and are generally driven by economic developments,
primarily capital market conditions, the magnitude and timing of which are generally not influenced by management, and we believe it enhances understanding and comparability of performance by highlighting underlying business activity and profitability drivers.  We note that book value per share, excluding the
impact of unrealized net capital gains and losses on fixed income securities, is a measure commonly used by insurance investors as a valuation technique.  Book value per share is the most directly comparable GAAP measure.  Book value per share, excluding the impact of unrealized net capital gains
and losses on fixed income securities, should not be considered as a substitute for book value per share, and does not reflect the recorded net worth of our business.  A reconciliation of book value per share, excluding the impact of unrealized net capital gains on fixed income securities, and book value
per share can be found in the schedule, "Book Value per Share".