Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2012

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Note 1 – Summary of Significant Accounting Policies

The accounting policies followed in the preparation of the interim financial statements are consistent with those used in the preparation of the annual financial information.  The interim financial statements reflect all normal and recurring adjustments, which are necessary, in the opinion of management, for a fair statement of results for the interim period presented.  Results for the period ended June 30, 2012, are not necessarily indicative of the results that may be expected for the year ending December 31, 2012.  These interim financial statements should be read in conjunction with the audited financial statements and notes included in Old Second Bancorp, Inc.’s (the “Company”) annual report on Form 10-K for the year ended December 31, 2011.  Unless otherwise indicated, amounts in the tables contained in the notes are in thousands.  Certain items in prior periods have been reclassified to conform to the current presentation.

The Company’s consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States and follow general practices within the banking industry.  Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes.  These estimates, assumptions, and judgments are based on information available as of the date of the financial statements.  Future changes in information may affect these estimates, assumptions, and judgments, which, in turn, may affect amounts reported in the financial statements.

All significant accounting policies are presented in Note 1 to the consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2011.  These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined.

In May 2011, the FASB issued ASU No. 2011-04 “Fair Value Measurement (Topic 820) - Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs.”  ASU 2011-04 changes the wording used to describe many of the requirements in GAAP for measuring fair value and for disclosing information about fair value measurements.  Consequently, the amendments in this update result in common fair value measurement and disclosure requirements in GAAP and International Financial Reporting Standards.  ASU 2011-04 is effective prospectively during interim and annual periods beginning on or after December 15, 2011.  The Company has assessed and implemented ASU 2011-04 in its fair value disclosures and found no material impact.

In June 2011, the FASB issued ASU No. 2011-05 “Comprehensive Income (Topic 220) - Presentation of Comprehensive Income.”  ASU 2011-05 requires that all non-owner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements.  In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income.  Retrospective application of the standard is required.  In December 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-12: “Comprehensive Income (Topic 220)—Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income” in ASU No. 2011-05, to defer the effective date for the part of ASU No. 2011-05 that would require adjustments of items out of accumulated other income to be presented on the components of both net income and other comprehensive income in financial statements.  The Company has included the consolidated statements of comprehensive income.  There was no impact on the consolidated statements of operations or balance sheets based on the adoption of this standard.