HFWA 10-Q Quarter ended Sept. 30, 2011

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

For the quarterly period ended September 30, 2011

OR

Commission File Number 0-29480

HERITAGE FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

(360) 943-1500

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes ¨ No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the last practicable date:

As of October 18, 2011 there were 15,583,141 common shares outstanding, with no par value, of the registrant.

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HERITAGE FINANCIAL CORPORATION

FORM 10-Q

INDEX

FORWARD LOOKING STATEMENT

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Forward Looking Statements

“Safe Harbor” statement under the Private Securities Litigation Reform Act of 1995: This Form 10-Q contains forward-looking statements that are subject to risks and uncertainties, including, but not limited to: the credit risks of lending activities, including changes in the level and trend of loan delinquencies and write-offs and changes in our allowance for loan losses and provision for loan losses that may be impacted by deterioration in the housing and commercial real estate markets; changes in general economic conditions, either nationally or in our market areas; changes in the levels of general interest rates, and the relative differences between short and long term interest rates, deposit interest rates, our net interest margin and funding sources; fluctuations in the demand for loans, the number of unsold homes and other properties and fluctuations in real estate values in our market areas; results of examinations of us by the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) and of our bank subsidiaries by the Federal Deposit Insurance Corporation (the “FDIC”), the Washington State Department of Financial Institutions, Division of Banks (the “Washington DFI”) or other regulatory authorities, including the possibility that any such regulatory authority may, among other things, require us to increase our reserve for loan losses, write-down assets, change our regulatory capital position or affect our ability to borrow funds or maintain or increase deposits, which could adversely affect our liquidity and earnings; legislative or regulatory changes that adversely affect our business including changes in regulatory policies and principles, including the interpretation of regulatory capital or other rules including changes from the Dodd-Frank Wall Street Reform and Consumer Protection Act and regulations that have been or will be promulgated thereunder; our ability to control operating costs and expenses; the use of estimates in determining fair value of certain of our assets, which estimates may prove to be incorrect and result in significant declines in valuation; difficulties in reducing risk associated with the loans on our balance sheet; staffing fluctuations in response to product demand or the implementation of corporate strategies that affect our workforce and potential associated charges; computer systems on which we depend could fail or experience a security breach; our ability to retain key members of our senior management team; costs and effects of litigation, including settlements and judgments; our ability to implement our expansion strategy; our ability to successfully integrate any assets, liabilities, customers, systems, and management personnel we have acquired including the Cowlitz Bank and Pierce Commercial Bank transactions or may in the future acquire into our operations and our ability to realize related revenue synergies and cost savings within expected time frames and any goodwill charges related thereto; risks relating to acquiring assets or entering markets in which we have not previously operated and may not be familiar; changes in consumer spending, borrowing and savings habits; the availability of resources to address changes in laws, rules, or regulations or to respond to regulatory actions; adverse changes in the securities markets; inability of key third-party providers to perform their obligations to us; changes in accounting policies and practices, as may be adopted by the financial institution regulatory agencies or the Financial Accounting Standards Board, including additional guidance and interpretation on accounting issues and details of the implementation of new accounting methods; other economic, competitive, governmental, regulatory, and technological factors affecting our operations, pricing, products and services; and other risks detailed from time to time in our filings with the Securities and Exchange Commission.

The Company cautions readers not to place undue reliance on any forward-looking statements. Moreover, you should treat these statements as speaking only as of the date they are made and based only on information then actually known to the Company. The Company does not undertake and specifically disclaims any obligation to revise any forward-looking statements to reflect the occurrence of anticipated or unanticipated events or circumstances after the date of such statements. These risks could cause our actual results for 2011 and beyond to differ materially from those expressed in any forward-looking statements by, or on behalf of, us, and could negatively affect the Company’s operating and stock price performance.

As used throughout this report, the terms “we”, “our”, “us”, or the “Company” refer to Heritage Financial Corporation and its consolidated subsidiaries, unless the context otherwise requires.

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HERITAGE FINANCIAL CORPORATION

(Dollars in thousands, except for per share amounts)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements.

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HERITAGE FINANCIAL CORPORATION

(Dollars in thousands, except for per share amounts)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements.

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HERITAGE FINANCIAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY FOR THE NINE MONTHS ENDED

SEPTEMBER 30, 2011 AND COMPREHENSIVE INCOME FOR THE THREE AND NINE MONTHS ENDED

SEPTEMBER 30, 2011 AND 2010

(Dollars and shares in thousands)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements.

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HERITAGE FINANCIAL CORPORATION

For the nine months ended September 30, 2011 and 2010

(Dollars in thousands)

(Unaudited)

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See Notes to Condensed Consolidated Financial Statements.

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HERITAGE FINANCIAL CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Three and Nine Months Ended September 30, 2011 and 2010

(Unaudited)

(a) Description of Business

Heritage Financial Corporation (the “Company”) is a bank holding company incorporated in the State of Washington in August 1997. The Company is primarily engaged in the business of planning, directing and coordinating the business activities of its wholly owned subsidiaries: Heritage Bank and Central Valley Bank (the “Banks”). The Banks are Washington-chartered commercial banks and their deposits are insured by the FDIC under the Deposit Insurance Fund (“DIF”). Heritage Bank conducts business from its main office in Olympia, Washington and its twenty-six branch offices located in western Washington and the greater Portland, Oregon area. Central Valley Bank conducts business from its main office in Toppenish, Washington and its five branch offices located in Yakima and Kittitas counties of Washington State.

The Company’s business consists primarily of lending and deposit relationships with small businesses and their owners in its market areas and attracting deposits from the general public. The Company also makes residential and commercial construction, income property, and consumer loans and originates for sale or investment purposes first mortgage loans on residential properties located in western and central Washington State and the greater Portland, Oregon area.

Effective July 30, 2010, Heritage Bank entered into a definitive agreement with the FDIC, pursuant to which Heritage Bank acquired certain assets and assumed certain liabilities of Cowlitz Bank, a Washington state-chartered commercial bank headquartered in Longview, Washington (the “Cowlitz Acquisition”). The Cowlitz Acquisition included nine branches of Cowlitz Bank, including its division Bay Bank, which became branches of Heritage Ban and it also included the Trust Services Division of Cowlitz Bank. Effective November 5, 2010, Heritage Bank entered into a definitive agreement with the FDIC, pursuant to which Heritage Bank acquired certain assets and assumed certain liabilities of Pierce Commercial Bank, a Washington state-chartered bank headquartered in Tacoma, Washington (the “Pierce Commercial Acquisition”). The Pierce Commercial Acquisition included one branch, which became a branch of Heritage Bank. The Cowlitz Acquisition and the Pierce Commercial Acquisition are collectively referred to as the “Cowlitz and Pierce Acquisitions.”

(b) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Generally Accepted Accounting Principles, or GAAP, for interim financial information, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. Generally Accepted Accounting Principles for complete financial statements. These condensed consolidated financial statements should be read with our December 31, 2010 audited consolidated financial statements and its accompanying notes included in our Annual Report on Form 10-K (“2010 Form 10-K”). In our opinion, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011. In preparing the condensed consolidated financial statements, we are required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses. Actual results could differ from those estimates.

Certain prior year amounts have been reclassified to conform to the current year’s presentation.

(c) Significant Accounting Policies

The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2010 Annual Form 10-K. There have not been any material changes in our significant accounting policies compared to those contained in our Form 10-K disclosure for the year ended December 31, 2010.

(d) Recently Issued Accounting Pronouncements

Financial Accounting Standards Board (“FASB”) Accounting Standards Updates (“ASU”) 2011-02, A Creditor’s Determination of Whether a Restructuring is a Troubled Debt Restructuring, provides an update for factors to be considered when evaluating whether a restructuring constitutes a troubled debt restructuring. ASU 2011-02 provides that a creditor must separately conclude that both of the following exist: (1) the restructuring constitutes a concession; and (2) the debtor is experiencing financial difficulties. In addition, the amendments to Topic 310 clarify that a creditor is precluded from using the effective interest rate test in the debtor’s guidance on restructuring of payables (paragraph 470-60-55-10) when evaluating whether a restructuring constitutes a troubled debt restructuring. The amendments in this Update were effective for the first interim or annual period beginning on or after June 15, 2011 (third quarter of 2011), and was applied retrospectively to the beginning of the year. The Company’s adoption of this guidance changed its disclosures but did not have a significant impact on its consolidated financial statements. See Note 2 for the related disclosures.

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FASB ASU 2011-03, Reconsideration of Effective Control for Repurchase Agreements , was issued April 2011 addressing the accounting for repurchase agreements and other agreements that both entitle and obligate a transferor to repurchase or redeem financial assets before their maturity. The amendments remove from the assessment of effective control (1) the criterion requiring the transferor to have the ability to repurchase or redeem the financial assets on substantially the agreed terms, even in the event of default by the transferee, and (2) the collateral maintenance implementation guidance related to that criterion. The provisions of this Update are effective for the first interim or annual period beginning on or after December 15, 2011, and should be applied prospectively to transactions or modifications of existing transactions that occur on or after the effective date. Management does not expect the adoption of the Update to have a material effect on the Company’s financial statements at the date of adoption.

FASB ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs , was issued May 2011 as a result of the FASB and International Accounting Standards Board’s (IASB) goal to develop common requirements for measuring fair value and for disclosing information about fair value measurements in accordance with U.S. GAAP and International Financial Reporting Standards. The provisions of this Update are effective during the interim or annual periods beginning after December 15, 2011, and are to be applied prospectively. Management does not expect the adoption of the Update to have a material effect on the Company’s financial statements at the date of adoption.

FASB ASU 2011-05, Presentation of Comprehensive Income , was issued June 2011 requiring that all nonowner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. This Update also requires that reclassification adjustments for items that are reclassified from other comprehensive income to net income be presented on the face of the financial statements. The provisions of this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, and are to be applied retrospectively. Early adoption is permitted. In October 2011, the FASB announced they are considering deferring certain provisions in ASU 2011-05 related to presentation of reclassification adjustments from other comprehensive income to net income. Management does not expect the adoption of the Update to have a material effect on the Company’s financial statements at the date of adoption.

FASB ASU 2011-08, Goodwill and Other (Topic 350)—Testing Goodwill for Impairment, was issued September 2011 and allows an entity the option to make a qualitative evaluation about the likelihood of goodwill impairment to determine whether it should calculate the fair value of the reporting unit. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted. Management does not expect the adoption of the Update to have a material effect on the Company’s financial statements at the date of adoption.

(a) Loan Origination/Risk Management

The Company originates loans in one of the four segments of the total loan portfolio: commercial business, real estate construction and land development, one-to-four family residential, and consumer. Within these segments are classes of loans to which management monitors and assesses credit risk in the loan portfolios. The Company has certain lending policies and procedures in place that are designed to maximize loan income within an acceptable level of risk. Management reviews and approves these policies and procedures on a regular basis. A reporting system supplements the review process by providing management with frequent reports related to loan production, loan quality, concentrations of credit, loan delinquencies, and nonperforming and potential problem loans. The Company also conducts external loan reviews and validates the credit risk assessment on a periodic basis. Results of these reviews are presented to management. The loan review process complements and reinforces the risk identification and assessment decisions made by lenders and credit personnel, as well as the Company’s policies and procedures.

A discussion of the risk characteristics of each portfolio segments is as follows:

Commercial Business

There are three significant classes of loans in the commercial portfolio segment, including commercial and industrial loans, owner-occupied commercial real estate, and non-owner occupied commercial real estate. The owner and non-owner occupied commercial real estate are both considered commercial real estate loans. As each of the classes carries different risk characteristics, management will discuss them separately.

Commercial and industrial. Commercial and industrial loans are primarily made based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may incorporate a personal guarantee; however,

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some short-term loans may be made on an unsecured basis. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers.

Commercial real estate. The Company originates multifamily and commercial real estate loans within its primary market areas. These loans are subject to underwriting standards and processes similar to commercial and industrial loans, in addition to those of real estate loans. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate involves more risk than other classes in that the lending typically involves higher loan principal amounts, and payments on loans secured by real estate properties are dependent on successful operation and management of the properties. Repayment of these loans may be more adversely affected by conditions in the real estate market or the economy.

One-to-Four Family Residential

The majority of the Company’s one-to four-family residential loans are secured by single-family residences located in its primary market areas. The Company’s underwriting standards require that single-family portfolio loans generally are owner-occupied and do not exceed 80% of the lower of appraised value at origination or cost of the underlying collateral. Terms typically range from 15 to 30 years. The Company generally sells most single-family loans in the secondary market. Management determines to what extent the Company will retain or sell these loans and other fixed rate mortgages in order to control the Bank’s interest rate sensitivity position, growth and liquidity.

Real Estate Construction and Land Development

The Company originates construction loans for one-to-four family residential and for five or more residential properties and commercial properties. The one-to-four family residential construction loans generally include construction of custom homes whereby the home buyer is the borrower. The Company also provides financing to builders for the construction of pre-sold homes and, in selected cases, to builders for the construction of speculative residential property. Substantially all construction loans are short-term in nature and priced with a variable rate of interest. Construction lending can involve a higher level of risk than other types of lending because funds are advanced partially based upon the value of the project, which is uncertain prior to the project’s completion. Because of the uncertainties inherent in estimating construction costs as well as the market value of a completed project and the effects of governmental regulation of real property, the Company’s estimates with regards to the total funds required to complete a project and the related loan-to-value ratio may vary from actual results. As a result, construction loans often involve the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate project and the ability of the borrower to sell or lease the property or refinance the indebtedness. If the Company’s estimate of the value of a project at completion proves to be overstated, it may have inadequate security for repayment of the loan and may incur a loss. Sources of repayment for these types of loans may be pre-committed permanent loans from approved long-term lenders, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are closely monitored by on-site inspections and are considered to have higher risks than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, governmental regulation of real property, general economic conditions and the availability of long-term financing.

Consumer

The Company originates consumer loans and lines of credit that are both secured and unsecured. The underwriting process is developed to ensure a qualifying primary and secondary source of repayment. Underwriting standards for home equity loans are heavily influenced by statutory requirements, which include, but are not limited to, a maximum loan-to-value percentage of 80%, collection remedies, the number of such loans a borrower can have at one time and documentation requirements. To monitor and manage consumer loan risk, policies and procedures are developed and modified, as needed. The majority of the consumer loans are relatively small amounts spread across many individual borrowers which minimizes the credit risk. Additionally, trend reports are reviewed by management on a regular basis.

During the quarter ended June 30, 2011, certain loans were reclassified to better represent the class of loan based on the Bank’s methodology. Therefore, the December 31, 2010 loan balances have been re-classified since being reported in the Annual Report on Form 10-K.

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Originated loans receivable at September 30, 2011 and December 31, 2010 consisted of the following portfolio segments and classes:

Loans acquired in a business acquisition are designated as “purchased” loans. Purchased loans subject to loss-sharing agreements with the FDIC are identified as “covered” loans. Loans purchased with evidence of credit deterioration since origination for which it is probable that all contractually required payments will not be collected are accounted for under FASB Accounting Standards Codification (“FASB ASC”) 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality , formerly AICPA SOP 03-3 Accounting for Certain Loans or Debt Securities Acquired in a Transfer . These loans are identified as “impaired” loans. Loans purchased that are not accounted for under FASB ASC 310-30 are accounted for under FASB ASC 310-20, Receivables—Nonrefundable fees and Other Costs, formerly Statement of Financial Accounting Standards (“SFAS”) 91 Nonrefundable fees and Other Costs. These loans are identified as “other” loans. Funds advanced on the covered loans subsequent to acquisition, identified as “subsequent advances,” are included in the purchased covered loan balances as these subsequent advances are covered under the loss-sharing agreements. These subsequent advances are not accounted for under FASB ASC 310-30. The total balance of subsequent advances on the purchased impaired covered loans was $11.2 million and $6.0 million as of September 30, 2011 and December 31, 2010, respectively.

The recorded investment of purchased covered loans receivable at September 30, 2011 and December 31, 2010 consisted of the following portfolio segments and classes:

The September 30, 2011 and December 31, 2010 gross recorded investment balance of impaired purchased covered loans accounted for under FASB ASC 310-30 was $82.8 million and $90.1 million, respectively. The gross recorded investment balance of other purchased covered loans was $32.2 million and $38.6 million at September 30, 2011 and December 31, 2010, respectively.

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The recorded investment of purchased non-covered loans receivable at September 30, 2011 and December 31, 2010 consisted of the following portfolio segments and classes: