10-K

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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D. C. 20549

FORM 10-K

Annual Report Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

For the fiscal year ended December 31, 2007

Commission file number 0-12422

MAINSOURCE FINANCIAL GROUP, INC.
(Exact name of registrant as specified in its charter)

Indiana (State or other jurisdiction of incorporation or organization)	35-1562245 (I.R.S. Employer Identification No.)
2105 North State Road 3 Bypass Greensburg, Indiana 47240 (Address of principal executive offices) (Zip code)
Registrant's telephone number, including area code: (812) 663-6734
Securities registered pursuant to Section 12(b) of the Act: None
Securities registered pursuant to Section 12(g) of the Act
Common shares, no par value (Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o No ý

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No ý

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 ý No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

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.

Large accelerated filer o Accelerated filer ý Non-accelerated filer o
(Do not check if a smaller reporting company) Smaller reporting company o

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

The aggregate market value (not necessarily a reliable indication of the price at which more than a limited number of shares would trade) of the voting stock held by non-affiliates of the registrant was $314,516,912 as of June 30, 2007.

As of March 10, 2008, there were outstanding 18,570,139 common shares, without par value, of the registrant.

DOCUMENTS INCORPORATED BY REFERENCE

Documents	Part of Form 10-K Into Which Incorporated
Definitive Proxy Statement for Annual Meeting of Shareholders to be held May 1, 2008	Part III (Items 10 through 14)

FORM 10-K

TABLE OF CONTENTS

PART I		Page
Item 1	Business	3
Item 1A	Risk Factors	5
Item 1B	Unresolved Staff Comments	8
Item 2	Properties	8
Item 3	Legal Proceedings	8
Item 4	Submission of Matters to a Vote of Security Holders	8
PART II
Item 5	Market For Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	9
Item 6	Selected Financial Data	11
Item 7	Management's Discussion and Analysis of Financial Condition and Results of Operations	12
Item 7A	Quantitative and Qualitative Disclosures About Market Risk	22
Item 8	Financial Statements and Supplementary Data	23
Item 9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	48
Item 9A	Controls and Procedures	48
Item 9B	Other Information	48
PART III
Item 10	Directors, Executive Officers and Corporate Governance
Item 11	Executive Compensation
Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13	Certain Relationships and Related Transactions and Director Independence
Item 14	Principal Accounting Fees and Services
PART IV
Item 15	Exhibits, Financial Statement Schedules	49

       Pursuant to General Instruction G, the information called for by Items 10–14 is omitted by MainSource Financial Group, Inc. since MainSource Financial Group, Inc. will file with the Commission a definitive proxy statement to shareholders pursuant to Regulation 14A not later than 120 days after the close of the fiscal year containing the information required by Items 10–14.

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PART I.

ITEM 1.    BUSINESS
(Dollars in thousands except per share data)

General

       MainSource Financial Group, Inc. ("the Company") is a financial holding company based in Greensburg, Indiana. As of December 31, 2007, the Company owned three banking subsidiaries: MainSource Bank, MainSource Bank of Illinois, and MainSource Bank — Ohio (together "the Banks"). The Company also owns all of the outstanding stock of MainSource Bank — Hobart, although substantially all of the assets of that bank were transferred to MainSource Bank in May, 2007. The Company is a party to an agreement to sell the stock of MainSource Bank — Hobart to a third party, which sale is anticipated to be comsummated in the first quarter of 2008. Through its non-bank affiliates, the Company provides services incidental to the business of banking. Since its formation in 1982, the Company has acquired and established various institutions and financial services companies and may acquire additional financial institutions and financial services companies in the future. For further discussion of the business of the Company see Management's Discussion and Analysis in Part II, Item 7.

       As of December 31, 2007, the Company operated 79 branch banking offices in Indiana, Illinois, and Ohio as well as eight insurance offices in Indiana. As of December 31, 2007, the Company had consolidated assets of $2,536,437, consolidated deposits of $1,901,829 and shareholders' equity of $264,102.

       Through its Banks, the Company offers a broad range of financial services, including: accepting time and transaction deposits; making consumer, commercial, agribusiness and real estate mortgage loans; renting safe deposit facilities; providing general agency personal and business insurance services; providing personal and corporate trust services; and providing other corporate services such as letters of credit and repurchase agreements.

       The lending activities of the Banks are separated into primarily the categories of commercial/agricultural, real estate and consumer. Loans are originated by the lending officers of the Banks subject to limitations set forth in lending policies. The Boards of Directors of each Bank review loans up to the Bank's legal lending limits, monitor concentrations of credit, problem and past due loans and charge-offs of uncollectible loans and formulate loan policy. The Banks maintain conservative loan policies and underwriting practices in order to address and manage loan risks. These policies and practices include granting loans on a sound and collectible basis, serving the legitimate needs of the community and the general market area while obtaining a balance between maximum yield and minimum risk, ensuring that primary and secondary sources of repayment are adequate in relation to the amount of the loan, developing and maintaining adequate diversification of the loan portfolio as a whole and of the loans within each category and developing and applying adequate collection policies.

       Commercial loans include secured and unsecured loans, including real estate loans, to individuals and companies and to governmental units within the market area of the Banks for a myriad of business purposes.

       Agricultural loans are generated in the Banks' markets. Most of the loans are real estate loans on farm properties. Loans are also made for agricultural production and such loans are generally reviewed annually.

       Residential real estate lending has been the largest component of the loan portfolio for many years. All affiliate banks generate residential mortgages for their own portfolios. However, the Company elects to sell the majority of its fixed rate mortgages into the secondary market while maintaining the servicing of such loans. At December 31, 2007, the Company was servicing a $533 million residential real estate loan portfolio. By originating loans for sale in the secondary market, the Company can more fully satisfy customer demand for fixed rate residential mortgages and increase fee income, while reducing the risk of loss caused by rising interest rates.

       The principal source of revenues for the Company is interest and fees on loans, which accounted for 69.1% of total revenues in 2007, 67.6% in 2006 and 63.7% in 2005.

       The Company's investment securities portfolio is primarily comprised of U. S. Treasuries, federal agencies, state and municipal bonds, U. S. government sponsored entity's mortgage-backed securities and corporate securities. The Company has classified its entire investment portfolio as available for sale, with fair value changes reported separately in shareholders' equity. Funds invested in the investment portfolio generally represent funds not immediately required to meet loan demand. Income related to the Company's investment portfolio accounted for 14.2% of total revenues in 2007, 16.0% in 2006 and 18.3% in 2005. As of December 31, 2007, the Company had not identified any securities as being "high risk" as defined by the FFIEC Supervisory Policy Statement on Securities Activities.

       The primary sources of funds for the Banks are deposits generated in local market areas. To attract and retain stable depositors, the Banks market various programs for demand, savings and time deposit accounts. These programs include interest and non-interest bearing demand and individual retirement accounts.

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       Currently, national retailing and manufacturing subsidiaries, brokerage and insurance firms and credit unions are fierce competitors within the financial services industry. Mergers between financial institutions within Indiana and neighboring states, which became permissible under the Interstate Banking and Branching Efficiency Act of 1994, have also added competitive pressure.

       The Company's Banks are located in predominantly non-metropolitan areas and their business is centered in loans and deposits generated within markets considered largely rural in nature. In addition to competing vigorously with other banks, thrift institutions, credit unions and finance companies located within their service areas, we also compete, directly and indirectly, with all providers of financial services.

Employees

       As of December 31, 2007, the Company and its subsidiaries had 805 full-time equivalent employees to whom it provides a variety of benefits and with whom it enjoys excellent relations. None of our employees are subject to collective bargaining agreements.

Regulation and Supervision of the Company

       The Company is a financial holding company ("FHC") within the meaning of the Bank Holding Company Act of 1956, as amended ("Act"). This Act subjects FHC's to regulations of the Federal Reserve Board ("FRB") and restricts the business of FHC's to financial and related activities.

       The Gramm-Leach-Bliley Financial Modernization Act of 1999 was enacted on November 12, 1999. The Modernization Act, which amended the Bank Holding Company Act, provides the following:

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it allows bank holding companies that qualify as "financial holding companies" to engage in a broad range of financial and related activities;

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it allows insurers and other financial services companies to acquire banks;

•

it removes various restrictions that applied to bank holding company ownership of securities firms and mutual fund advisory companies; and

•

it establishes the overall regulatory structure applicable to bank holding companies that also engage in insurance and securities operations.

       The Company initially qualified as a financial holding company in December, 2004. Thus the Company is authorized to operate as a financial holding company and is eligible to engage in, or acquire companies engaged in, the broader range of activities that are permitted by the Modernization Act. These activities include those that are determined to be "financial in nature," including insurance underwriting, securities underwriting and dealing, and making merchant banking investments in commercial and financial companies. If any of our banking subsidiaries ceases to be "well capitalized" or "well managed" under applicable regulatory standards, the Federal Reserve Board may, among other things, place limitations on our ability to conduct these broader financial activities or, if the deficiencies persist, require us to divest the banking subsidiary. In addition, if any of our banking subsidiaries receives a rating of less than satisfactory under the Community Reinvestment Act of 1977 ("CRA"), we would be prohibited from engaging in any additional activities other than those permissible for bank holding companies that are not financial holding companies. Our banking subsidiaries currently meet these capital, management and CRA requirements.

       Acquisitions by the Company of banks and savings associations are subject to federal and state regulation. Any acquisition by the Company of more than five percent of the voting stock of any bank requires prior approval of the FRB, the FDIC and, if applicable, state regulators. Acquisition of savings associations is also subject to the approval of the OTS and acquisition of national banks is subject to the approval of the OCC.

       Indiana law permits FHCs to acquire bank holding companies and banks out of state on a reciprocal basis, subject to certain limitations. Under current law, the Company may acquire banks, and may be acquired by bank holding companies, located in any state in the United States that permits reciprocal entry by Indiana FHCs. Under the Act, FHCs may acquire savings associations without geographic restrictions.

       A FHC and its subsidiaries are prohibited from engaging in certain tying arrangements in connection with the extension of credit, lease or sale of property, or the provision of any property or service.

       The Company is under the jurisdiction of the Securities and Exchange Commission ("SEC") and state securities commission for matters relating to the offering and sale of its securities. The Company is subject to the SEC's rules and regulations relating to, among other things, periodic reporting, reporting to shareholders, proxy solicitation and insider trading.

       The Company's liquidity is principally derived from dividends paid on the common stock of its subsidiaries. The payment of these dividends is subject to certain regulatory restrictions.

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       Under bank holding company policy, the Company is expected to act as a source of financial strength to, and commit resources to support, its affiliates. As a result of such policy, the Company may be required to commit resources to its affiliate banks in circumstances where it might not otherwise do so.

       Certain regulations define relevant capital measures for five capital categories. A "well capitalized" institution is one that has a total risk-based capital ratio of at least 10%, a Tier 1 risk-based capital ratio of at least 8%, a leverage ratio of at least 5% and is not subject to regulatory direction to maintain a specific level for any capital measure. An "adequately capitalized" institution is one that has ratios greater than 8%, 4% and 4%. An institution is "undercapitalized" if its respective ratios are less than 8%, 4% and 4%. "Significantly undercapitalized" institutions have ratios of less than 6%, 3% and 3%. An institution is deemed to be "critically undercapitalized" if it has a ratio of tangible equity to total assets that is 2% or less. Institutions with capital ratios at levels of "undercapitalized" or lower are subject to various limitations that, in most situations, will reduce the competitiveness of the institution.

Regulation and Supervision of the Subsidiary Banks

       The Company's affiliate banks are supervised, regulated and examined by their respective state regulatory banking agencies and the Federal Deposit Insurance Corporation ("FDIC"). A cease-and-desist order may be issued against the banks, if the respective agency finds that the activities of the bank represent an unsafe and unsound banking practice or violation of law.

       The deposits of the Company's banking subsidiaries are insured to the maximum extent permitted by law by the Deposit Insurance Fund ("DIF") of the FDIC, which was created in 2006 as the result of the merger of the Bank Insurance Fund and the Savings Association Insurance Fund in accordance with the Federal Deposit Insurance Reform Act of 2005 (the "FDI" Act). The FDI Act provided for several additional changes to the deposit insurance system, including adjusting the deposit insurance limits (currently $100,000 for most accounts) every 5 years beginning in 2011 based on an inflation index, increasing the insurance limit for retirement accounts from $100,000 to $250,000, and allocating an aggregate of $4.7 billion of one-time credits to banks to offset the insurance premiums charged to such banks by the FDIC.

       Branching by banks in Indiana is subject to the jurisdiction, and requires the prior approval, of the bank's primary federal regulatory authority and, if the branching bank is a state bank, of the Indiana Department of Financial Institutions ("DFI"). Under Indiana law, banks may branch anywhere in the state.

       The Company is a legal entity separate and distinct from its subsidiary Banks. There are various legal limitations on the extent to which the Banks can supply funds to the Company. The principal source of the Company's funds consists of dividends from its subsidiary Banks. State and Federal law restricts the amount of dividends that may be paid by banks. In addition, the Banks are subject to certain restrictions on extensions of credit to the Company, on investments in the stock or other securities of the Company and in taking such stock or securities as collateral for loans.

Capital Requirements

       The Company and its subsidiary Banks must meet certain minimum capital requirements mandated by each of their state or federal regulators. These regulatory agencies require BHCs and banks to maintain certain minimum ratios of primary capital to total assets and total capital to total assets. The FRB requires BHCs to maintain a minimum Tier 1 leverage ratio of 3 percent capital to total assets; however, for all but the most highly rated institutions which do not anticipate significant growth, the minimum Tier 1 leverage ratio is 3 percent plus an additional cushion of 100 to 200 basis points. As of December 31, 2007, the Company's leverage ratio of capital to total assets was 7.1%. The FRB and FDIC each have approved the imposition of "risk-adjusted" capital ratios on BHCs and financial institutions. The Company's Tier 1 Capital to Risk-Weighted Assets Ratio was 10.0% and its Total Capital to Risk-Weighted Assets Ratio was 10.8% at December 31, 2007. The Company's Banks had capital to asset ratios and risk- adjusted capital ratios at December 31, 2007, in excess of the applicable minimum regulatory requirements.

ITEM 1A.    RISK FACTORS

       In addition to the other information contained in this report, the following risks may affect us. If any of these risks actually occur, our business, financial condition or results of operations may suffer. As a result, the price of our common shares could decline.

Like most banking organizations, our business is highly susceptible to credit risk.

       As a lender, we are exposed to the risk that our customers will be unable to repay their loans according to their terms and that the collateral securing the payment of their loans (if any) may not be sufficient to assure repayment. Credit losses could have a material adverse effect on our operating results.

       As of December 31, 2007, our total loan portfolio was approximately $1.7 billion or 67% of our total assets. Three major components of the loan portfolio are loans principally secured by real estate, approximately $1.3 billion or 78% of total loans, other commercial loans, approximately $214 million or 13% of total loans, and consumer loans, approximately $127 million or 9% of total loans. Our credit risk with respect to our consumer installment loan portfolio and commercial loan portfolio relates principally to the

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general creditworthiness of individuals and businesses within our local market area. Our credit risk with respect to our residential and commercial real estate mortgage and construction loan portfolio relates principally to the general creditworthiness of individuals and businesses and the value of real estate serving as security for the repayment of the loans. A related risk in connection with loans secured by commercial real estate is the effect of unknown or unexpected environmental contamination, which could make the real estate effectively unmarketable or otherwise significantly reduce its value as security.

Our allowance for loan losses may not be sufficient to cover actual loan losses, which could adversely affect our earnings.

       We maintain an allowance for loan losses at a level estimated to be sufficient to cover probable incurred loan losses in our loan portfolio. Additional loan losses will likely occur in the future and may occur at a rate greater than we have experienced to date. In determining the size of the allowance, our management makes various assumptions and judgments about the collectibility of our loan portfolio, including the diversification by industry of our commercial loan portfolio, the effect of changes in the local real estate market on collateral values, the results of recent regulatory examinations, the effects on the loan portfolio of current economic indicators and their probable impact on borrowers, the amount of charge-offs for the period, the amount of nonperforming loans and related collateral security, and the evaluation of our loan portfolio by an external loan review. If our assumptions and judgments prove to be incorrect, our current allowance may not be sufficient and adjustments may be necessary to allow for different economic conditions or adverse developments in our loan portfolio. Federal and state regulators also periodically review our allowance for loan losses and may require us to increase our provision for loan losses or recognize further loan charge-offs, based on judgments different than those of our management. Any increase in our allowance for loan losses or loan charge-offs could have an adverse effect on our operating results and financial condition.

We rely heavily on our management and other key personnel, and the loss of any of them may adversely affect our operations.

       We are and will continue to be dependent upon the services of our management team. The loss of any of our senior managers could have an adverse effect on our growth and performance because of their skills, knowledge of the markets in which we operate and years of industry experience and the difficulty of promptly finding qualified replacement personnel. The loss of key personnel in a particular market could have an adverse effect on our performance in that market because it may be difficult to find qualified replacement personnel who are already located in or would be willing to relocate to a non-metropolitan market. Recently, our former President and Chief Executive Officer resigned and was replaced by an interim President and CEO, Robert E. Hoptry. We are currently conducting a search for a permanent President and CEO. This transition may be a distraction to senior management, business operations, and customers.

Significant interest rate volatility could reduce our profitability.

       Our results of operations are affected principally by net interest income, which is the difference between interest earned on loans and investments and interest expense paid on deposits and other borrowings. We cannot predict or control changes in interest rates. National, regional and local economic conditions and the policies of regulatory authorities, including monetary policies of the Board of Governors of the Federal Reserve System, affect market interest rates. While we have instituted policies and procedures designed to manage the risks from changes in market interest rates, at any given time our assets and liabilities will likely be affected differently by a given change in interest rates, principally because we do not match the maturities of our loans and investments precisely with our deposits and other funding sources. Changes in interest rates may also affect the level of voluntary prepayments on our loans and the level of financing or refinancing by customers. As of December 31, 2007, we had a negative interest rate gap of 36% of interest earning assets in the one-year time frame. Although this is within our internal policy limits, our earnings will be adversely affected in periods of rising interest rates because, during such periods, the interest expense paid on deposits and borrowings will generally increase more rapidly than the interest income earned on loans and investments. If such an interest rate increase occurred gradually, we would use our established procedures to attempt to mitigate the effects over time. However, if such an interest rate increase occurred rapidly, or interest rates exhibited volatile increases and decreases, we might be unable to mitigate the effects, and our net interest income could suffer significant adverse effects. While management intends to continue to take measures to mitigate interest rate risk, we cannot assure you that such measures will be entirely effective in minimizing our exposure to the risk of rapid changes in interest rates.

The geographic concentration of our markets makes our business highly susceptible to local economic conditions.

       Unlike larger banking organizations that are more geographically diversified, our operations are currently concentrated in 30 counties in Indiana, three counties in Illinois, and two counties in Ohio. As a result of this geographic concentration in three fairly contiguous markets, our financial results depend largely upon economic conditions in these market areas. A deterioration in economic conditions in one or all of these markets could result in one or more of the following:

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an increase in loan delinquencies;

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an increase in problem assets and foreclosures;

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a decrease in the demand for our products and services; and

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•

a decrease in the value of collateral for loans, especially real estate, in turn reducing customers' borrowing power, the value of assets associated with problem loans and collateral coverage.

If we do not adjust to rapid changes in the financial services industry, our financial performance may suffer.

       We face substantial competition for deposit, credit and trust relationships, as well as other sources of funding in the communities we serve. Competing providers include other banks, thrifts and trust companies, insurance companies, mortgage banking operations, credit unions, finance companies, money market funds and other financial and nonfinancial companies which may offer products functionally equivalent to those offered by our banks. Competing providers may have greater financial resources than we do and offer services within and outside the market areas we serve. In addition to this challenge of attracting and retaining customers for traditional banking services, our competitors now include securities dealers, brokers, mortgage bankers, investment advisors and finance and insurance companies who seek to offer one-stop financial services to their customers that may include services that banks have not been able or allowed to offer to their customers in the past. The increasingly competitive environment is primarily a result of changes in regulation, changes in technology and product delivery systems and the accelerating pace of consolidation among financial service providers. If we are unable to adjust both to increased competition for traditional banking services and changing customer needs and preferences, it could adversely affect our financial performance and your investment in our common stock.

Our historical growth and financial performance trends may not continue if our acquisition strategy is not successful.

       Growth in asset size and earnings through acquisitions is an important part of our business strategy. As consolidation of the banking industry continues, the competition for suitable acquisition candidates may increase. We compete with other banking companies for acquisition opportunities, and many of these competitors have greater financial resources and acquisition experience than we do and may be able to pay more for an acquisition than we are able or willing to pay. We also may need additional debt or equity financing in the future to fund acquisitions. We may not be able to obtain additional financing or, if available, it may not be in amounts and on terms acceptable to us. We may use our common stock as the consideration for an acquisition or we may issue additional common stock and use the proceeds for the acquisition. Our issuance of additional securities will dilute your equity interest in us and may have a dilutive effect on our earnings per share. If we are unable to locate suitable acquisition candidates willing to sell on terms acceptable to us, or we are otherwise unable to obtain additional debt or equity financing necessary for us to continue our acquisition strategy, we would be required to find other methods to grow our business and we may not grow at the same rate we have in the past, or at all.

Acquisitions entail risks which could negatively affect our operations.

       Acquisitions involve numerous risks, including:

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exposure to asset quality problems of the acquired institution;

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maintaining adequate regulatory capital;

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diversion of management's attention from other business concerns;

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risks and expenses of entering new geographic markets;

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potential significant loss of depositors or loan customers from the acquired institution; and

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exposure to undisclosed or unknown liabilities of an acquired institution.

       Any of these acquisition risks could result in unexpected losses or expenses and thereby reduce the expected benefits of the acquisition.

Unanticipated costs related to our acquisition strategy could reduce MainSource's future earnings per share.

       MainSource believes it has reasonably estimated the likely costs of integrating the operations of the banks it acquires into MainSource and the incremental costs of operating such banks as a part of the MainSource family. However, it is possible that unexpected transaction costs such as taxes, fees or professional expenses or unexpected future operating expenses, such as increased personnel costs or increased taxes, as well as other types of unanticipated adverse developments, could have a material adverse effect on the results of operations and financial condition of MainSource. If unexpected costs are incurred, acquisitions could have a dilutive effect on MainSource's earnings per share. In other words, if MainSource incurs such unexpected costs and expenses as a result of its acquisitions, MainSource believes that the earnings per share of MainSource common stock could be less than they would have been if those acquisitions had not been completed.

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MainSource may be unable to successfully integrate the operations of the banks it has acquired and may acquire in the future and retain employees of such banks.

       MainSource's acquisition strategy involves the integration of the banks MainSource has acquired and may acquire in the future as MainSource subsidiary banks. The difficulties of integrating the operations of such banks with MainSource and its other subsidiary banks include:

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coordinating geographically separated organizations;

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integrating personnel with diverse business backgrounds;

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combining different corporate cultures; and

•

retaining key employees.

       The process of integrating operations could cause an interruption of, or loss of momentum in, the activities of one or more of MainSource, its subsidiary banks and the banks MainSource has acquired and may acquire in the future and the loss of key personnel. The integration of such banks as MainSource subsidiary banks requires the experience and expertise of certain key employees of such banks who are expected to be retained by MainSource. We cannot be sure, however, that MainSource will be successful in retaining these employees for the time period necessary to successfully integrate such banks' operations as subsidiary banks of MainSource. The diversion of management's attention and any delays or difficulties encountered in connection with the mergers, along with the integration of the banks as MainSource subsidiary banks, could have an adverse effect on the business and results of operation of MainSource.

Changes in governmental regulation and legislation could limit our future performance and growth.

       We are subject to extensive state and federal regulation, supervision and legislation that govern almost all aspects of our operations, as well as any acquisitions we may propose to make. Any change in applicable federal or state laws or regulations could have a substantial impact on us, our subsidiary banks and our operations. While we cannot predict what effect any presently contemplated or future changes in the laws or regulations or their interpretations would have on us, these changes could reduce the value of your investment.

Our strategy to minimize Indiana state taxes on our investment portfolio may be unsuccessful.

       Since 2002, our Indiana state financial institutions taxes have been reduced by our use of subsidiaries we formed in the State of Nevada to hold a significant portion of our investment portfolio. Nevada has no state or local income tax, and we take the position that none of this income is subject to the Indiana financial institutions tax. For the year ended December 31, 2007, our net savings in Indiana tax from this arrangement (after federal tax) was approximately $900,000. Management believes that this arrangement is permitted under Indiana law, and Indiana tax authorities have not challenged our tax returns in this regard. If we were not permitted to realize state tax savings from this arrangement, it would cause our net income after taxes to be lower in the future, and if Indiana tax authorities challenged our arrangement and were successful in assessing additional taxes, interest and penalties for prior years, we might be forced to take a special charge to our earnings in the amount of the assessment.

ITEM 1B.    UNRESOLVED STAFF COMMENTS.

       None.

ITEM 2.    PROPERTIES

       As of December 31, 2007, the Company leased space from one of its subsidiaries for use as its corporate headquarters. The Company's subsidiaries own, or lease, all of the facilities from which they conduct business. All leases are comparable to other leases in the respective market areas and do not contain provisions materially detrimental to the Company or its subsidiaries. As of December 31, 2007 the Company had 79 banking locations of which MainSource Bank had 67, MainSource Bank of Illinois had seven, and MainSource Bank — Ohio had five. In addition, the Company operates eight insurance offices in Indiana. At December 31, 2007, the Company had approximately $40 million invested in premises and equipment.

ITEM 3.    LEGAL PROCEEDINGS

       The Company and its subsidiaries may be parties (both plaintiff and defendant) to ordinary litigation incidental to the conduct of business. Management is presently not aware of any material pending or contemplated legal proceedings.

ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

       No matters were submitted during the fourth quarter of 2007 to a vote of security holders, through the solicitation of proxies or otherwise.

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PART II

ITEM 5.    MARKET FOR THE REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER'S PURCHASES OF EQUITY SECURITIES

Market Information

       The Company's Common Stock is traded on the NASDAQ Stock Market under the symbol MSFG. The Common Stock was held by approximately 4,000 shareholders at March 10, 2008. The quarterly high and low closing prices for the Company's common stock as reported by NASDAQ and quarterly cash dividends declared and paid are set forth in the tables below. All per share data is retroactively restated for all stock dividends and splits.

       The range of known per share prices by calendar quarter, based on actual transactions, excluding commissions, is shown below.

	Market Prices
2007	Q1		Q2		Q3		Q4
High	$	17.53	$	17.50	$	19.01	$	18.09
Low	$	15.42	$	16.15	$	15.03	$	14.36
2006	Q1		Q2		Q3		Q4
High	$	18.52	$	18.13	$	16.93	$	17.88
Low	$	17.05	$	15.57	$	15.30	$	16.05
	Cash Dividends
2007	Q1		Q2		Q3		Q4
	$	0.135	$	0.140	$	0.140	$	0.140
2006	Q1		Q2		Q3		Q4
	$	0.129	$	0.133	$	0.133	$	0.133

Equity Compensation Plan Information

       The following table sets forth information regarding securities authorized for issuance under the Company's equity compensation plans as of December 31, 2007:

Plan category	Number of securities to be issued upon exercise of outstanding options, warrants and rights (a)	Weighted-average exercise price of outstanding options, warrants and rights (b)		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (c)
Equity compensation plans approved by security holders	275,837	$	18.07	574,945
Equity compensation plans not approved by security holders	—		—	—
Total	275,837	$	18.07	574,945

9

Stock Performance Graph

       The following performance graph compares the performance of our common shares to the performance of the NASDAQ Market Index (U.S.) and the NASDAQ Bank Stocks Index for the 60 months ended December 31, 2007. The graph assumes an investment of $100 in each of the Company's common shares, the NASDAQ Market Index (U.S.) and the NASDAQ Bank Stocks Index on December 21, 2002.

	12/31/02	12/31/03	12/31/04	12/31/05	12/31/06	12/31/07
MainSource Financial Group	100.00	133.45	163.27	123.12	122.94	109.50
NASDAQ MARKET INDEX (U.S.)	100.00	150.01	162.89	165.13	180.85	198.60
NASDAQ Bank Stocks Index	100.00	129.93	144.21	137.97	153.15	119.35

Purchases of Equity Securities

       The activity in the Company's Stock Repurchase Program for the fourth quarter of 2007 was as follows:

Period	Total Number of Shares (or Units) Purchased	Average Price Paid Per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) of Shares (or Units) That May Yet Be Purchased Under the Plans or Programs(1)
October 2007	148	$	17.02	148	378,886
November 2007	66,032	$	15.70	66,032	312,854
December 2007	110	$	16.00	110	312,744

(1)

On March 22, 2007, the Company announced that its Board of Directors had approved a stock repurchase program effective April 1, 2007, for the purchase of up to 2.5% of its outstanding common shares, or approximately 500,000 shares. The program expires on March 31, 2008, unless completed sooner or otherwise extended.

10

ITEM 6.    SELECTED FINANCIAL DATA

Selected Financial Data
(Dollar amounts in thousands except per share data)

		2007			2006			2005			2004			2003
Results of Operations
	Net interest income	$	74,397		$	68,268		$	53,648		$	50,002		$	44,232
	Provision for loan losses		5,745			1,819			1,040			600			1,325
	Noninterest income		28,126			23,039			17,332			19,544			19,443
	Noninterest expense		68,020			59,642			48,576			45,880			40,448
	Income before income tax		28,758			29,846			21,364			23,066			21,902
	Income tax		6,888			7,605			5,172			6,273			6,597
	Net income		21,870			22,241			16,192			16,793			15,305
	Dividends paid on common stock		10,392			8,944			6,514			5,421			4,873
Per Common Share*
	Earnings per share (basic)	$	1.17		$	1.30		$	1.23		$	1.41		$	1.31
	Earnings per share (diluted)		1.17			1.29			1.23			1.41			1.31
	Dividends paid		0.555			0.529			0.495			0.453			0.415
	Book value — end of period		14.22			13.50			11.39			10.17			9.02
	Market price — end of period		15.56			16.94			17.00			22.74			18.55
At Year End
	Total assets	$	2,536,437		$	2,429,773		$	1,645,605		$	1,549,379		$	1,442,729
	Investment securities		489,739			485,259			450,814			428,686			425,542
	Loans, excluding held for sale		1,693,678			1,574,384			957,995			929,005			855,471
	Allowance for loan losses		14,331			12,792			10,441			11,698			11,509
	Total deposits		1,901,829			1,859,689			1,352,697			1,226,367			1,191,310
	Notes payable		—			—			—			9,100			12,500
	Federal Home Loan Bank advances		257,099			208,443			41,547			90,981			62,751
	Subordinated debentures		41,239			41,239			29,898			29,898			29,898
	Shareholders' equity		264,102			253,247			161,069			123,320			105,424
Financial Ratios
	Return on average assets		0.90	%		1.06	%		1.04	%		1.13	%		1.14	%
	Return on average common shareholders' equity		8.49			10.39			11.27			14.70			15.07
	Allowance for loan losses to total loans (year end, excluding held for sale)		0.85			0.81			1.09			1.26			1.35
	Allowance for loan losses to total non-performing loans (year end)		69.93			73.18			102.19			83.31			77.65
	Shareholders' equity to total assets (year end)		10.41			10.42			9.79			7.96			7.31
	Average equity to average total assets		10.57			10.13			9.18			7.95			7.57
	Dividend payout ratio		47.52			40.21			40.23			32.28			31.84

*

Adjusted for stock split and dividends

11

ITEM 7.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Management's Discussion and Analysis
(Dollar amounts in thousands except per share data)

Forward-Looking Statements

       Except for historical information contained herein, the discussion in this Annual Report includes certain forward-looking statements based upon management expectations. Actual results and experience could differ materially from the anticipated results or other expectations expressed in the Company's forward-looking statements. Factors which could cause future results to differ from these expectations include the following: general economic conditions; legislative and regulatory initiatives; monetary and fiscal policies of the federal government; deposit flows; the cost of funds; general market rates of interest; interest rates on competing investments; demand for loan products; demand for financial services; changes in accounting policies or guidelines; changes in the quality or composition of the Company's loan and investment portfolios; the Company's ability to integrate acquisitions, the impact of our continuing acquisition strategy, and other factors, including the risk factors set forth in Item 1A of this Annual Report on Form 10-K and in other reports we file from time to time with the Securities and Exchange Commission.

Overview

       MainSource Financial Group, Inc. ("MainSource or Company") is a financial holding company whose principal activity is the ownership and management of its three wholly owned subsidiary banks ("Banks"): MainSource Bank headquartered in Greensburg, Indiana, MainSource Bank of Illinois headquartered in Kankakee, Illinois, and MainSource Bank — Ohio headquartered in Troy, Ohio. The banks operate under state charters and are subject to regulation by their respective state regulatory agencies and the Federal Deposit Insurance Corporation. Non-banking subsidiaries include MainSource Insurance, LLC and MainSource Title, LLC. Both of these subsidiaries are subject to regulation by the Indiana Department of Insurance. The Company also owns all of the outstanding stock of MainSource Bank — Hobart, although substantially all of the assets of that bank were transferred to MainSource Bank in May, 2007.

Business Strategy

       The Company operates under the broad tenets of a long-term strategic plan ("Plan") designed to improve the Company's financial performance, expand its competitive position and enhance long-term shareholder value. The Plan is premised on the belief of the Company's Board of Directors that it can best promote long-term shareholder interests by pursuing strategies which will continue to preserve its community-focused philosophy. The dynamics of the Plan assure continually evolving goals, with the enhancement of shareholder value being the constant, overriding objective. The extent of the Company's success will depend upon how well it anticipates and responds to competitive changes within its markets, the interest rate environment and other external forces.

       The Company continued its history of external growth through acquisitions during 2006 by acquiring three whole bank institutions and purchasing five branches from an in-market competitor. In March, 2006, the Company acquired 100% of the outstanding shares of Union Community Bancorp ("Union"). In May, 2006, the Company acquired 100% of the outstanding shares of HFS Bank, F.S.B. ("HFS"). In June, 2006, the Company acquired 100% of the outstanding shares of Peoples Ohio Financial Corporation ("Peoples"). In August, 2006, the Company purchased five branches from First Financial Bank. In total, these acquisitions added approximately $598 million in loans and $490 million in deposits.

       In February, 2008, the Company announced the execution of a definitive agreement to acquire 1st Independence Financial Group, Inc. headquartered in Louisville, Kentucky. As of December 31, 2007, 1st Independence had approximately $350 million in assets, $280 million in loans, and $255 million in deposits. The agreement provides that 1st Independence's shareholders will receive $5.475 in cash and .881036 shares of MainSource common stock for each share of 1st Independence stock owned. The transaction value is estimated at $37 million. The consideration to be paid to 1st Independence's shareholders may be adjusted at closing based on the value of 1st Independence's consolidated tangible shareholders' equity, subject to certain adjustments, as well as the closing price of the Company's common stock prior to closing. The transaction, which is expected to close in the third quarter of 2008, is subject to various regulatory approvals and the approval of 1st Independence's shareholders. The Company is continuously reviewing other acquisition targets including branches, whole banks, and other financial service related entities focusing on the four-state Midwest region of Indiana, Illinois, Kentucky, and Ohio.

12

Results of Operations

       Net income was $21,870 in 2007, $22,241 in 2006, and $16,192 in 2005. Earnings per common share on a fully diluted basis were $1.17 in 2007, $1.29 in 2006, and $1.23 in 2005. The decrease from 2006 to 2007 in overall net income and earnings per share was primarily attributable to three factors: the decrease in the Company's net interest margin, the increase in the Company's loan loss provision expense, and the expenses incurred for the data processing system conversions of the Hobart and Crawfordsville affiliates. Key measures of the operating performance of the Company are return on average assets, return on average shareholders' equity, and efficiency ratio. The Company's return on average assets was 0.90% for 2007 compared to 1.06% for 2006 and return on average shareholders' equity was 8.5% in 2007 compared to 10.4% in 2006. The Company's efficiency ratio, which measures the non-interest expenses of the Company as a percentage of its net interest income (on a fully taxable equivalent basis) and its non-interest income, was 64.4% in 2007 compared to 63.6% in 2006.

13

Net Interest Income

       Net interest income and net interest margin are influenced by the volume and yield or cost of earning assets and interest-bearing liabilities. Tax equivalent net interest income of $77,603 in 2007 increased from $71,345 in 2006. Net interest margin, on a fully-taxable equivalent basis, was 3.60% for 2007 compared to 3.81% for the same period a year ago. Due to the relatively flat nature of the yield curve for most of 2007, the Company's cost of funds increased steadily throughout the year and outpaced the increase in the yield on earning assets. Partially offsetting this trend was a favorable shift in the Company's volume and mix of earning assets as lower-yielding residential real estate loans were replaced by higher-yielding commercial loans.

       The following table summarizes net interest income (on a tax-equivalent basis) for each of the past three years.

Average Balance Sheet and Net Interest Analysis (Taxable Equivalent Basis)*

			2007							2006							2005
Assets			Average Balance			Interest		Average Rate		Average Balance			Interest		Average Rate		Average Balance			Interest		Average Rate
Short-term investments			$	2,601		$	131	5.04	%	$	4,210		$	141	3.35	%	$	4,010		$	71	1.77	%
Federal funds sold and money market accounts				10,458			575	5.50			8,249			394	4.78			4,889			197	4.03
Securities
	Taxable			401,006			19,661	4.90			382,912			18,176	4.75			359,116			13,819	3.85
	Non-taxable*			121,737			7,621	6.26			121,257			7,540	6.22			105,251			6,251	5.94
		Total securities		522,743			27,282	5.22			504,169			25,716	5.10			464,367			20,070	4.32
Loans**
	Commercial			770,269			55,243	7.17			594,294			43,128	7.26			490,832			33,056	6.73
	Residential real estate			556,136			41,625	7.48			488,477			33,362	6.83			225,358			14,083	6.25
	Consumer			290,930			23,177	7.97			270,885			21,067	7.78			219,281			15,555	7.09
		Total loans		1,617,335			120,045	7.42			1,353,656			97,557	7.21			935,471			62,694	6.70
		Total earning assets		2,153,137			148,033	6.88			1,870,284			123,808	6.62			1,408,737			83,032	5.89
Cash and due from banks				56,498							58,562							47,595
Unrealized gains (losses) on securities				(4,634	)						(7,643	)						(2,601	)
Allowance for loan losses				(13,296	)						(12,667	)						(11,754	)
Premises and equipment,net				39,829							35,926							26,291
Intangible assets				136,189							103,008							50,845
Accrued interest receivable and other assets				70,789							55,580							44,905
		Total assets	$	2,438,512						$	2,103,050						$	1,564,018
Liabilities
	Interest-bearing deposits DDA, savings, and money market accounts		$	776,693		$	14,853	1.91		$	711,111		$	11,130	1.57		$	616,398		$	6,916	1.12
	Certificates of deposit			864,074			38,820	4.49			731,603			28,152	3.85			483,457			13,183	2.73
		Total interest-bearing deposits		1,640,767			53,673	3.27			1,442,714			39,282	2.72			1,099,855			20,099	1.83
Short-term borrowings				48,943			1,856	3.79			33,586			1,332	3.97			38,720			975	2.52
Subordinated debentures				41,239			3,333	8.08			31,750			2,475	7.80			29,898			1,938	6.48
Notes payable and FHLB borrowings				236,706			11,568	4.89			189,171			9,374	4.96			95,525			3,815	3.99
		Total interest-bearing liabilities		1,967,655			70,430	3.58			1,697,221			52,463	3.09			1,263,998			26,827	2.12
Demand deposits				190,162							174,218							144,647
Other liabilities				23,062							17,622							11,737
Total liabilities				2,180,879							1,889,061							1,420,382
Shareholders' equity				257,633							213,989							143,636
Total liabilities and shareholders' equity			$	2,438,512			70,430	3.27	***	$	2,103,050			52,463	2.81	***	$	1,564,018			26,827	1.90	***
Net interest income						$	77,603	3.60	****				$	71,345	3.81	****				$	56,205	3.99	****
Conversion of tax exempt income to a fully taxable equivalent basis using a marginal rate of 35%						$	3,206						$	3,077						$	2,557

*

Adjusted to reflect income related to securities and loans exempt from Federal income taxes.

**

Nonaccruing loans have been included in the average balances.

***

Total interest expense divided by total earning assets.

****

Net interest income divided by total earning assets.

14

       The following table sets forth for the periods indicated a summary of the changes in interest income and interest expense resulting from changes in volume and changes in rates.

Volume/Rate Analysis of Changes in Net Interest Income
(Tax Equivalent Basis)

			2007 OVER 2006									2006 OVER 2005
			Volume			Rate			Total			Volume			Rate			Total
Interest income
	Loans		$	19,645		$	2,843		$	22,488		$	30,092		$	4,771		$	34,863
	Securities			961			605			1,566			2,024			3,622			5,646
	Federal funds sold and money market funds			117			64			181			166			31			197
	Short-term investments			(81	)		71			(10	)		(1	)		71			70
		Total interest income		20,643			3,582			24,225			32,281			8,495			40,776
Interest expense
	Interest-bearing DDA, savings, and money market accounts		$	1,305		$	2,418		$	3,723		$	1,440		$	2,774		$	4,214
	Certificates of deposit			5,986			4,682			10,668			9,554			5,415			14,969
	Borrowings			2,911			(193	)		2,718			4,428			1,488			5,916
	Subordinated debentures			769			89			858			142			395			537
		Total interest expense		10,971			6,996			17,967			15,564			10,072			25,636
Change in net interest income			$	9,672		$	(3,414	)		6,258		$	16,717		$	(1,577	)		15,140
Change in tax equivalent adjustment										129									520
Change in net interest income before tax equivalent adjustment									$	6,129								$	14,620

Provision for Loan Losses

       The Company expensed $5,745 in provision for loan losses in 2007. This level of provision allowed the Company to maintain an adequate allowance for loan losses. This topic is discussed in detail under the heading "Loans, Credit Risk and the Allowance and Provision for Loan Losses".

Non-interest Income and Expense

										Percent Change
			2007		2006		2005			07/06	06/05
Non-interest income
	Insurance commissions		$	1,864	$	1,821	$	1,991		2.4%	-8.5%
	Mortgage banking			2,921		2,279		2,693		28.2%	-15.4%
	Trust and investment product fees			1,569		1,187		1,119		32.2%	6.1%
	Service charges on deposit accounts			13,312		9,491		7,510		40.3%	26.4%
	Net realized gains/(losses) on securities sales			114		145		(2,179	)	-21.4%	-106.7%
	Increase in cash surrender value of life insurance			1,535		1,255		891		22.3%	40.9%
	Interchange income			3,159		2,617		1,926		20.7%	35.9%
	Other			3,652		4,244		3,381		-13.9%	25.5%
		Total non-interest income	$	28,126	$	23,039	$	17,332		22.1%	32.9%
Non-interest expense
	Salaries and employee benefits		$	38,063	$	33,073	$	27,121		15.1%	21.9%
	Net occupancy			5,347		4,755		3,542		12.5%	34.2%
	Equipment			5,788		5,361		4,123		8.0%	30.0%
	Intangibles amortization			2,666		2,236		1,306		19.2%	71.2%
	Telecommunications			1,924		1,916		1,664		0.4%	15.1%
	Stationery, printing, and supplies			1,475		1,408		984		4.8%	43.1%
	Other			12,757		10,893		9,836		17.1%	10.7%
		Total non-interest expense	$	68,020	$	59,642	$	48,576		14.0%	22.8%

15

Non-interest Income

       Non-interest income was $28,126 for 2007 compared to $23,039 for the same period in 2006. The acquisitions closed in 2006 were the primary driver of this increase as the Company realized the full-year effect in 2007. Non-interest income as a percent of non-interest expense was 41.3% for 2007 compared to 38.6% for 2006.

       Total non-interest income was $23,039 for 2006 compared to $17,332 for 2005, an increase of $5,707 and 32.9% The primary drivers of the increase in non-interest income were the acquisitions of the three whole banks in 2006 and the change in securities gains and losses year over year. In total, the acquisitions accounted for approximately $2,175 of non-interest income with approximately half of this income related to service charges on deposit accounts. In 2005, the Company incurred net losses on securities sales of $2,179 compared to net gains on securities sales of $145 in 2006. The securities losses incurred in 2005 were primarily related to the portfolio restructuring that took place at the end of 2005. This restructuring involved the sale of $85 million in under-performing securities and resulted in a pre-tax loss of $2.7 million.

Non-interest Expense

       Total non-interest expense was $68,020 in 2007 compared to $59,642 in 2006, an increase of $8,378 and 14.0%. The full-year effect of the 2006 acquisitions was the primary driver of this increase and added approximately $6 million of expenses to 2007. In addition, the Company incurred approximately $900 of expenses related to the data processing system conversions of its Hobart and Crawfordsville, Indiana affiliates.

       Total non-interest expense was $59,642 in 2006 compared to $48,576 in 2005, an increase of $11,066 and 22.8%. The primary driver of the increase in non-interest expense was the acquisitions of the three whole banks in 2006. As a result of the 2006 bank acquisitions, the Company added 18 offices to its branch network bringing its total to 80 at the end of 2006. In total, the acquisitions accounted for approximately $9,700 of non-interest expense in 2006 with approximately half of this expense related to salaries and employee benefits. Excluding acquisition-related activity, the Company's non-interest expense would have been approximately $49,950 in 2006, an increase of 2.8%.

Income Taxes

       The effective tax rate was 24.0% in 2007, 25.5% in 2006, and 24.2% in 2005. The decrease in the Company's effective tax rate from 2006 to 2007 was primarily attributable to the purchase of a new markets tax credit investment in 2007. The Company and its subsidiaries file consolidated income tax returns.

Balance Sheet

       At December 31, 2007, total assets were $2,536,437 compared to $2,429,773 at December 31, 2006, an increase of $107 million. The increase was primarily attributable to the organic growth in the Company's loan portfolio, which grew by $119 million.

Loans, Credit Risk and the Allowance and Provision for Loan Losses

       Loans remain the Company's largest concentration of assets and continue to represent the greatest potential risk. The loan underwriting standards observed by the Company's subsidiaries are viewed by management as a means of controlling problem loans and the resulting charge-offs.

       The Company's conservative loan underwriting standards have historically resulted in higher loan quality and generally lower levels of net charge-offs than peer group averages. The Company also believes credit risks may be elevated if undue concentrations of loans in specific industry segments and to out-of-area borrowers are incurred. Accordingly, the Company's Board of Directors regularly monitors such concentrations to determine compliance with its loan concentration policy. The Company believes it has no undue concentrations of loans.

       Total loans (excluding those held for sale) increased by $119 million from year-end 2006. The increase in commercial loans (including commercial real estate and construction and development loans) was the primary driver of this increase. In total, commercial loans grew by $133 million, or approximately 20%. Residential real estate loans continue to represent the largest portion of the total loan portfolio. With the acquisition of the three thrift institutions in 2006 and their corresponding large residential real estate portfolios, such loans represented 46% of total loans at December 31, 2007 compared to 50% of total loans at the end of 2006.

       The following table details the Company's loan portfolio by type of loan.

16

Loan Portfolio

		December 31
		2007		2006		2005		2004		2003
Types of loans
Commercial and industrial		$	214,393	$	173,557	$	149,074	$	154,717	$	158,271
Agricultural production financing			29,812		25,588		23,871		22,647		25,897
Farm real estate			42,185		46,051		38,833		38,281		37,107
Commercial real estate mortgage			376,759		326,284		202,047		213,359		183,938
Residential real estate mortgage			780,102		790,962		368,953		353,515		315,848
Construction and development			123,611		82,261		51,736		38,056		34,686
Consumer			126,816		129,681		123,481		108,430		99,724
	Total loans	$	1,693,678	$	1,574,384	$	957,995	$	929,005	$	855,471

       The following table indicates the amounts of loans (excluding residential and commercial mortgages and consumer loans) outstanding as of December 31, 2007 which, based on remaining scheduled repayments of principal, are due in the periods indicated.

Maturities and Sensitivity to Changes in Interest Rates of Commercial and Construction Loans

			Due:      Within 1 Year			1–5 Years		Over 5 years		Total
Loan Type
	Commercial and industrial			$	112,559	$	47,874	$	53,960	$	214,393
	Agricultural production financing				23,274		4,417		2,121		29,812
	Construction and development				91,800		21,613		10,198		123,611
		Totals		$	227,633	$	73,904	$	66,279	$	367,816
		Percent			62%		20%		18%		100%
Rate Sensitivity
	Fixed Rate			$	28,303	$	33,220	$	28,817	$	90,340
	Variable Rate				249,735		27,617		124		277,476
		Totals		$	278,038	$	60,837	$	28,941	$	367,816

       The Company regards its ability to identify and correct loan quality problems as one of its greatest strengths. Loans are placed on "non-accrual" status when, in management's judgment, the collateral value and/or the borrower's financial condition does not justify accruing interest. As a general rule, commercial and real estate loans are reclassified to nonaccrual status at or before becoming 90 days past due. Interest previously recorded is reversed and charged against current income. Subsequent interest payments collected on nonaccrual loans are thereafter applied as a reduction of the loan's principal balance. Non-performing loans were $20,493 as of December 31, 2007 compared to $17,481 as of December 31, 2006 and represented 1.21% of total loans at December 31, 2007 versus 1.11% one year ago.

       The following table details the Company's non-performing loans as of December 31 for the years indicated.

Non-performing Loans

		2007		2006		2005		2004		2003
Nonaccruing loans		$	18,800	$	16,021	$	9,984	$	13,611	$	14,626
Accruing loans contractually past due 90 days or more			1,693		1,460		233		431		196
	Total	$	20,493	$	17,481	$	10,217	$	14,042	$	14,822
	% of total loans		1.21%		1.11%		1.07%		1.51%		1.73%

       The provision for loan losses was $5,745 in 2007, $1,819 in 2006, and $1,040 in 2005. The increase in the Company's provision in 2007 was primarily due to the increase in non-performing loans and the increase in net charge-offs during 2007. In addition, the Company allocated additional reserve dollars in the fourth quarter of 2007 to cover its potential exposure in its $50 million land development loan portfolio. Net charge-offs were $4,206 in 2007 compared to $3,363 in 2006 and $3,299 in 2005. As a percentage of average loans, net charge-offs equaled .26%, .25%, and .35% in 2007, 2006 and 2005, respectively.

17

Summary of the Allowance for Loan Losses

			2007		2006		2005		2004		2003
Balance at January 1			$	12,792	$	10,441	$	11,698	$	11,509	$	9,517
Chargeoffs
	Commercial			1,642		1,653		1,164		1,069		588
	Commercial real estate mortgage			136		—		594		43		—
	Residential real estate mortgage			446		412		869		534		555
	Consumer			3,134		1,834		956		886		777
		Total Chargeoffs		5,358		3,899		3,583		2,532		1,920
Recoveries
	Commercial			258		65		46		123		160
	Commercial real estate mortgage			—		—		—		2		43
	Residential real estate mortgage			26		66		35		43		54
	Consumer			868		405		203		178		252
		Total Recoveries		1,152		536		284		346		509
Net Chargeoffs				4,206		3,363		3,299		2,186		1,411
Addition resulting from acquisition				—		3,895		1,002		1,775		2,078
Provision for loan losses				5,745		1,819		1,040		600		1,325
Balance at December 31			$	14,331	$	12,792	$	10,441	$	11,698	$	11,509
Net Chargeoffs to average loans				0.26%		0.25%		0.35%		0.24%		0.18%
Provision for loan losses to average loans				0.36%		0.13%		0.11%		0.07%		0.17%
Allowance to total loans at year end				0.85%		0.81%		1.09%		1.26%		1.35%

Allocation of the Allowance for Loan Losses

			2007				2006				2005				2004				2003
December 31			Amount		Percent of loans to total loans		Amount		Percent of loans to total loans		Amount		Percent of loans to total loans		Amount		Percent of loans to total loans		Amount		Percent of loans to total loans
Real estate
	Residential		$	2,652	46	%	$	2,514	50	%	$	1,018	39	%	$	1,123	38	%	$	1,230	37	%
	Farm real estate			251	3			247	3			625	4			681	4			704	4
	Commercial			4,386	22			4,045	21			3,233	21			3,997	23			3,907	21
	Construction and development			1,085	7			359	5			763	5			648	4			658	4
		Total real estate		8,374	78			7,165	79			5,639	69			6,449	69			6,499	66
Commercial
	Agribusiness			167	2			138	2			412	3			464	3			491	3
	Other commercial			2,593	13			2,189	11			2,440	16			2,831	17			3,003	19
		Total Commercial		2,760	15			2,327	13			2,852	19			3,295	20			3,494	22
Consumer				3,114	7			2,053	8			1,435	12			1,581	11			1,053	12
Unallocated				83				1,247				515				373				463
		Total	$	14,331	100	%	$	12,792	100	%	$	10,441	100	%	$	11,698	100	%	$	11,509	100	%

       The unallocated portion of the Company's allowance for loan losses increased significantly in 2006 as a result of the three whole bank acquisitions and those banks' differing approaches to computing the allowance. During 2007, the acquired entities' loans were subject to the Company's loan review process and fully integrated into the Company's allowance for loan losses allocation methodology. As a result of this process, the allowance dollars were allocated to the appropriate loan categories and the unallocated portion decreased.

       Management maintains a list of loans warranting either the assignment of a specific reserve amount or other special administrative attention. This watch list, together with a listing of all classified loans, nonaccrual loans and delinquent loans, is reviewed monthly by the Board of Directors of each banking subsidiary. Additionally, the Company evaluates its consumer and

18

residential real estate loan pools for probable losses incurred based on historical trends, adjusted by current delinquency and non-performing loan levels.

       The ability to absorb loan losses promptly when problems are identified is invaluable to a banking organization. Most often, losses incurred as a result of prompt, aggressive collection actions are much lower than losses incurred after prolonged legal proceedings. Accordingly, the Company observes the practice of quickly initiating stringent collection efforts in the early stages of loan delinquency.

       The adequacy of the allowance for loan losses in each subsidiary is reviewed at least quarterly. The determination of the provision amount in any period is based upon management's continuing review and evaluation of loan loss experience, changes in the composition of the loan portfolio, classified loans including non-accrual and impaired loans, current economic conditions, the amount of loans presently outstanding, and the amount and composition of loan growth. The Company's allowance for loan losses was $14,331, or 0.85% of total loans, at December 31, 2007 compared to $12,792, or 0.81% of total loans, at the end of 2006.

       During 2006 the Company purchased certain loans that were subject to the accounting treatment under SOP 03-3 (see Note 4 to the Consolidated Financial Statements). At the time of acquisition, these loans had evidence of credit deterioration. In applying this accounting standard, an allowance for loan losses amount was not carried over or established for these loans. Instead these loans are carried at their fair value at date of acquisition including consideration of expected cash flows to be received. The valuation allowance for these purchased loans as of December 31, 2007 was $1,032. Before the adoption of SOP 03-3, this valuation allowance would have been included in the allowance for loan losses balance. Had this amount been included in the allowance for loan losses amount at December 31, 2007, the allowance would have been $15,363, or 0.91% of total loans.

Securities

       Securities offer flexibility in the Company's management of interest rate risk, and are the primary means by which the Company provides liquidity and responds to changing maturity characteristics of assets and liabilities. The Company's investment policy prohibits trading activities and does not allow investment in high-risk derivative products or junk bonds.

       As of December 31, 2007, all of the securities are classified as "available for sale" ("AFS") and are carried at fair value with unrealized gains and losses, net of taxes, excluded from earnings and reported as a separate component of shareholders' equity. A net unrealized gain of $1,958 was recorded to adjust the AFS portfolio to current market value at December 31, 2007 compared to a net unrealized loss of $2,291 at December 31, 2006.

Investment Securities
(Carrying Values at December 31)

			Within 1 Year		2–5 Yrs		6–10 Yrs		Beyond 10 Years		Total 2007
Available for sale
	Federal agencies		$	12,877	$	11,285	$	7,802	$	—	$	31,964
	State and municipal			1,707		13,416		51,510		61,064		127,697
	Mortgage-backed securities			—		—		36,822		286,384		323,206
	Equity and other securities			1,506		761		0		4,605		6,872
		Total available for sale	$	16,090	$	25,462	$	96,134	$	352,053	$	489,739
Weighted average yield*				5.19%		5.03%		5.13%		5.45%		5.36%

*

Adjusted to reflect income related to securities exempt from federal income taxes.

       Amounts in the table above are based on scheduled maturity dates. Variable interest rates are subject to change not less than annually based upon certain interest rate indexes. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

       As of December 31, 2007, there were no corporate bonds and other securities which represented more than 10% of shareholders' equity.

       For 2007 the tax equivalent yield of the investment securities portfolio was 5.22%, compared to 5.10% and 4.32% for 2006 and 2005, respectively. The average life of the Company's investment securities portfolio was 4.42 years at December 31, 2007. With a flat to inverted yield curve for a majority of the year, investment activity was focused on sustaining the strategic positioning of the portfolio. The portfolio concentrations were maintained in mortgage related securities as well as tax exempt securities with a focus on discounted product. Entering 2008 the portfolio continues to remain positioned for long term performance with an emphasis on stable cash flows.

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Sources of Funds

       The Company relies primarily on customer deposits and securities sold under agreement to repurchase ("repurchase agreements"), along with shareholders' equity to fund earning assets. Federal Home Loan Bank ("FHLB") advances are used to provide additional funding. The Company also attempts to obtain deposits through branch and whole bank acquisitions.

       Deposits generated within local markets provide the major source of funding for earning assets. Average total deposits were 85.0% and 86.4% of total average earning assets in 2007 and 2006, respectively. Total interest-bearing deposits averaged 89.6% and 89.2% of average total deposits during 2007 and 2006. Management is continuing its efforts to increase the percentage of transaction-related deposits to total deposits due to the positive effect on earnings.

       Repurchase agreements are high denomination investments utilized by public entities and commercial customers as an element of their cash management responsibilities. During 2007, repurchase agreements averaged $37,296, with an average cost of 3.05%.

       Another source of funding is the Federal Home Loan Bank (FHLB). The Company had FHLB advances of $257,099 outstanding at December 31, 2007. These advances have interest rates ranging from 3.4% to 6.4% (see note 9 to the consolidated financial statements for the maturity schedule of these advances). The Company averaged $224,624 in FHLB advances during 2007 compared to $176,895 during 2006. This increase in the average balance of FHLB borrowings was primarily due to the full-year effect of the acquisitions of the thrift institutions in 2006 and their significant reliance on wholesale borrowings.

Average Deposits

	2007				2006				2005
	Amount		Rate		Amount		Rate		Amount		Rate
Demand	$	190,162			$	174,218			$	144,647
Interest Bearing Demand		446,152	1.93	%		367,791	1.35	%		309,551	0.84	%
Savings/Money Markets		330,541	1.89			343,321	1.80			306,847	1.41
Certificates of Deposit		864,074	4.49			731,603	3.85			483,457	2.73
Totals	$	1,830,929	2.93	%	$	1,616,933	2.72	%	$	1,244,502	1.62	%

       As of December 31, 2007, certificates of deposit and other time deposits of $100 or more mature as follows:

	3 months or less		4–6 months		6–12 months		over 12 months		Total
Amount	$	98,558	$	59,882	$	43,008	$	36,763	$	238,211
Percent		41%		25%		18%		16%

Capital Resources

       The Federal Reserve Board and other regulatory agencies have adopted risk-based capital guidelines that assign risk weightings to assets and off-balance sheet items. The Company's core capital ("Tier 1") consists of common shareholders' equity adjusted for unrealized gains or losses on available for sale (AFS) securities plus limited amounts of Trust Preferred Securities less goodwill and intangible assets. Total capital consists of core capital, certain debt instruments and a portion of the allowance for loan losses. At December 31, 2007, Tier 1 capital to average assets was 7.1%. Total capital to risk-weighted assets was 10.8%. Both ratios exceed all required ratios established for bank holding companies. Risk-adjusted capital levels of each of the Company's subsidiary banks exceed regulatory definitions of well-capitalized institutions.

       The Trust Preferred Securities (which are classified as subordinated debentures) qualify as Tier 1 capital or core capital with respect to the Company under the risk-based capital guidelines established by the Federal Reserve. Under such guidelines, capital received from the proceeds of the sale of these securities cannot constitute more than 25% of the total Tier 1 capital of the Company. Consequently, the amount of Trust Preferred Securities in excess of the 25% limitation constitutes Tier 2 capital, or supplementary capital, of the Company. As of December 31, 2007, all of the Company's Trust Preferred Securities qualify as Tier 1 capital.

       Common shareholders' equity is impacted by the Company's decision to categorize its securities portfolio as available for sale (AFS). Securities in this category are carried at fair value, and common shareholders' equity is adjusted to reflect unrealized gains and losses, net of taxes.

       The Company declared and paid common dividends of $.555 per share in 2007 compared to $.529 and $.495 in 2006 and 2005 respectively. Book value per common share increased to $14.22 at December 31, 2007 compared to $13.50 at the end of 2006. The net adjustment for AFS securities increased book value per share by $.07 at December 31, 2007 and decreased book value per share by $.08 at December 31, 2006. Depending on market conditions, the adjustment for AFS securities can cause significant fluctuations in shareholders' equity.

20

Liquidity

       Liquidity management involves maintaining sufficient cash levels to fund operations and to meet the requirements of borrowers, depositors and creditors. Higher levels of liquidity bear higher corresponding costs, measured in terms of lower yields on short-term, more liquid earning assets and higher interest expense involved in extending liability maturities. Liquid assets include cash and cash equivalents, loans and securities maturing within one year and money market instruments. In addition, the Company holds approximately $416 million of AFS securities maturing after one year, which can be sold to meet liquidity needs.

       Maintaining a relatively stable funding base, which is achieved by diversifying funding sources, supports liquidity, extends the contractual maturity of liabilities, and limits reliance on volatile short-term purchased funds. Short-term funding needs may arise from declines in deposits or other funding sources, funding of loan commitments and requests for new loans. The Company's strategy is to fund assets to the maximum extent possible with core deposits, which provide a sizable source of relatively stable low-cost funds. The Company defines core deposits as all deposits except certificates of deposits greater than $100. Average core deposits funded approximately 71.6% of total earning assets during 2007 and approximately 74.1% in 2006.

       Management believes the Company has sufficient liquidity to meet all reasonable borrower, depositor and creditor needs in the present economic environment. The Company has not received any directives from regulatory authorities that would materially affect liquidity, capital resources or operations.

Contractual Obligations as of December 31, 2007

		Total		Less than 1 Year		1–3 Years		3–5 Years		More than 5 Years
Time Deposits		$	822,668	$	661,929	$	135,623	$	14,865	$	10,251
FHLB Advances			257,099		89,273		81,978		35,243		50,605
Subordinated Debentures			41,239		—		—		—		41,239
	Total	$	1,121,006	$	751,202	$	217,601	$	50,108	$	102,095

Interest Rate Risk Management

       Interest rate risk is the exposure of the Company's financial condition to adverse changes in market interest rates. In an effort to estimate the impact of sustained interest rate movements to the Company's earnings, the Company monitors interest rate risk through computer-assisted simulation modeling of its net interest income. The Company's simulation modeling monitors the potential impact to net interest income under various interest rate scenarios. The Company's objective is to actively manage its asset/liability position within a one-year interval and to limit the risk in any of the interest rate scenarios to a reasonable level of tax-equivalent net interest income within that interval. The Company monitors compliance within established guidelines of the Funds Management Policy. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk section for further discussion regarding interest rate risk.

Critical Accounting Policies

       The accounting and reporting policies of the Company comply with accounting principles generally accepted in the United States and conform to general practices within the banking industry. These policies require estimates and assumptions. Changes in underlying factors, assumptions, or estimates in any of these areas could have a material impact on the Company's future financial condition and results of operations. In management's opinion, some of these areas have a more significant impact than others on the Company's financial reporting. These areas currently include accounting for the allowance for loan losses and goodwill.

       Allowance for Loan Losses — The level of the allowance for loan losses is based upon management's evaluation of the loan and lease portfolios, past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay (including the timing of future payments), the estimated value of any underlying collateral, composition of the loan portfolio, economic conditions, and other pertinent factors. This evaluation is inherently subjective as it requires material estimates including the amounts and timing of future cash flows expected to be received on impaired loans that may be susceptible to significant change. The level of allowance maintained is believed by management to be adequate to cover losses inherent in the portfolio. The allowance is increased by provisions charged to expense and decreased by charge-offs, net of recoveries of amounts previously charged-off.

       Goodwill — Statement of Financial Accounting Standards No. 141 "Business Combinations" and No. 142 "Goodwill and Other Intangible Assets" were issued in June of 2001 and were effective for fiscal years beginning after December 15, 2001. Under these rules, goodwill and intangible assets deemed to have indefinite lives, if any, will no longer be amortized, but will be subject to annual impairment tests in accordance with the Statements. The Company has selected June 30 as its date for annual impairment testing.

21

New Accounting Matters

       See Note 1 to the Consolidated Financial Statements regarding the adoption of new accounting standards in 2007.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

       The Company's exposure to market risk is reviewed on a regular basis by the Asset/Liability Committees and Boards of Directors of the Company and its subsidiary banks. Primary market risks, which impact the Company's operations, are liquidity risk and interest rate risk, as discussed above.

       As discussed previously, the Company monitors interest rate risk by the use of computer simulation modeling to estimate the potential impact on its net interest income under various interest rate scenarios. Another method by which the Company's interest rate risk position can be estimated is by computing estimated changes in its net portfolio value ("NPV"). This method estimates interest rate risk exposure from movements in interest rates by using interest rate sensitivity analysis to determine the change in the NPV of discounted cash flows from assets and liabilities. Computations are based on a number of assumptions, including the relative levels of market interest rates and prepayments in mortgage loans and certain types of investments. These computations do not contemplate any actions management may undertake in response to changes in interest rates, and should not be relied upon as indicative of actual results. In addition, certain shortcomings are inherent in the method of computing NPV. Should interest rates remain or decrease below current levels, the proportion of adjustable rate loans could decrease in future periods due to refinancing activity. In the event of an interest rate change, prepayment levels would likely be different from those assumed in the table. Lastly, the ability of many borrowers to repay their adjustable rate debt may decline during a rising interest rate environment.

       The following table provides an assessment of the risk to NPV in the event of sudden and sustained 1% and 2% increases and decreases in prevailing interest rates. The table indicates that as of December 31, 2007 the Company's estimated NPV might be expected to increase in the event of an increase in prevailing interest rates, and might be expected to decrease in the event of a decrease to prevailing interest rates (dollars in thousands).

Change in Rates	$ Amount	% Change			NPV Ratio		Change
+2%	172,239	$	(45,749	)	7.28	%	(193	)bp
+1%	201,515		(16,473	)	8.52	%	(70	)bp
Base	217,988		—		9.22	%	—
-1%	221,195		3,207		9.36	%	14	bp
-2%	195,596		(22,392	)	8.27	%	(95	)bp

       The above discussion, and the portions of MANAGEMENT'S DISCUSSION AND ANALYSIS in Item 7 of this Report that are referenced in the above discussion contains statements relating to future results of the Company that are considered "forward-looking-statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to, among other things, simulation of the impact on net interest income from changes in interest rates. Actual results may differ materially from those expressed or implied therein as a result of certain risks and uncertainties, including those risks and uncertainties expressed above, those that are described in MANAGEMENT'S DISCUSSION AND ANALYSIS in Item 7 of this Report, those that are described in Item 1 of this Report, "Business," under the caption "Forward-Looking-Statements and Associated Risks," and those that are described in Item 1A of this Report, "Risk Factors", all of which discussions are incorporated herein by reference.

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ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

            Crowe Chizek and Company LLC
            Member Horwath International

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Shareholders
MainSource Financial Group, Inc.
Greensburg, Indiana

       We have audited the accompanying consolidated balance sheets of MainSource Financial Group, Inc. as of December 31, 2007 and 2006 and the related consolidated statements of income, changes in shareholders' equity, and cash flows for each of the three years in the period ended December 31, 2007. We also have audited MainSource Financial Group, Inc.'s internal control over financial reporting as of December 31, 2007, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). MainSource Financial Group, Inc.'s management is responsible for these financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on these financial statements and an opinion on the company's internal control over financial reporting based on our audits.

       We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

       A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

       Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

       In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of MainSource Financial Group, Inc. as of December 31, 2007 and 2006, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2007, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion MainSource Financial Group, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2007, based on criteria established in Internal Control — Integrated Framework issued by the COSO.

	Crowe Chizek and Company LLC
Louisville, Kentucky March 12, 2008

23

MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED BALANCE SHEETS
(Dollar amounts in thousands except per share data)

				December 31, 2007			December 31, 2006
Assets
	Cash and due from banks			$	81,660		$	90,546
	Money market funds and federal funds sold				2,995			13,609
		Cash and cash equivalents			84,655			104,155
	Interest bearing time deposits				116			116
	Securities available for sale				489,739			485,259
	Loans held for sale				2,439			2,162
	Loans, net of allowance for loan losses of $14,331 and $12,792				1,679,347			1,561,592
	Restricted stock, at cost				22,947			22,947
	Premises and equipment, net				40,483			40,370
	Goodwill				122,046			120,609
	Purchased intangible assets				13,278			15,944
	Cash surrender value of life insurance				41,420			39,885
	Interest receivable and other assets				39,967			36,734
			Total assets	$	2,536,437		$	2,429,773
Liabilities
	Deposits
		Noninterest bearing		$	200,753		$	193,513
		Interest bearing			1,701,076			1,666,176
			Total deposits		1,901,829			1,859,689
	Other borrowings				50,156			42,306
	Federal Home Loan Bank (FHLB) advances				257,099			208,443
	Subordinated debentures				41,239			41,239
	Other liabilities				22,012			24,849
			Total liabilities		2,272,335			2,176,526
Commitments and contingent liabilities (Note 14)
Shareholders' equity
	Preferred stock, no par value
		Authorized shares — 400,000
		Issued and outstanding shares — none			—			—
	Common stock $.50 stated value:
		Authorized shares — 25,000,000
		Issued shares — 19,151,759 and 18,240,772
		Outstanding shares — 18,570,139 and 17,859,603			9,610			9,139
	Common stock to be distributed for stock dividend, 0 and 912,038 shares				—			456
	Treasury stock — 581,620 and 381,169, at cost				(9,487	)		(6,586	)
	Additional paid-in capital				196,712			196,788
	Retained earnings				65,999			54,914
	Accumulated other comprehensive income/(loss)				1,268			(1,464	)
			Total shareholders' equity		264,102			253,247
			Total liabilities and shareholders' equity	$	2,536,437		$	2,429,773

The accompanying notes are an integral part of these consolidated financial statements.

24

MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED STATEMENTS OF INCOME
YEARS ENDED DECEMBER 31, 2007, 2006, AND 2005
(Dollar amounts in thousands except per share data)

				2007		2006		2005
Interest income
	Loans, including fees			$	119,546	$	97,121	$	62,321
	Securities
			Taxable		19,621		18,176		13,819
			Tax exempt		4,954		4,899		4,067
	Federal funds sold and money market funds				575		394		197
	Deposits with financial institutions				131		141		71
		Total interest income			144,827		120,731		80,475
Interest expense
	Deposits				53,673		39,282		20,099
	Federal Home Loan Bank advances				10,894		8,704		3,561
	Subordinated debentures				3,333		2,475		1,938
	Other borrowings				2,530		2,002		1,229
		Total interest expense			70,430		52,463		26,827
Net interest income					74,397		68,268		53,648
	Provision for loan losses				5,745		1,819		1,040
Net interest income after provision for loan losses					68,652		66,449		52,608
Non-interest income
	Insurance commissions				1,864		1,821		1,991
	Mortgage banking				2,921		2,279		2,693
	Trust and investment product fees				1,569		1,187		1,119
	Service charges on deposit accounts				13,312		9,491		7,510
	Net realized gains/(losses) on securities				114		145		(2,179	)
	Increase in cash surrender value of life insurance				1,535		1,255		891
	Interchange income				3,159		2,617		1,926
	Other income				3,652		4,244		3,381
		Total non-interest income			28,126		23,039		17,332
Non-interest expense
	Salaries and employee benefits				38,063		33,073		27,121
	Net occupancy expenses				5,347		4,755		3,542
	Equipment expenses				5,788		5,361		4,123
	Intangibles amortization				2,666		2,236		1,306
	Telecommunications				1,924		1,916		1,664
	Stationery printing and supplies				1,475		1,408		984
	Other expenses				12,757		10,893		9,836
		Total non-interest expense			68,020		59,642		48,576
Income before income tax					28,758		29,846		21,364
	Income tax expense				6,888		7,605		5,172
Net income				$	21,870	$	22,241	$	16,192
Net income per share — basic				$	1.17	$	1.30	$	1.23
Net income per share — diluted				$	1.17	$	1.29	$	1.23

The accompanying notes are an integral part of these consolidated financial statements.

25

MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
YEARS ENDED DECEMBER 31, 2007, 2006, AND 2005
(Dollar amounts in thousands except per share data)

				Common Stock
				Shares Outstanding		Amount			Treasury Stock			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income			Total			Comprehensive Income
Balance, January 1, 2005				11,544,939		$	5,880		$	(3,479	)	$	73,451		$	47,371		$	97		$	123,320
	Net income														$	16,192					$	16,192		$	16,192
		Change in fair value of cash flow hedge, net																	225			225			225
		Change in fair value of securities, net																	(3,455	)		(3,455	)		(3,455	)
			Total comprehensive income																					$	12,962
Cash dividends ($.495 per share)																(6,496	)					(6,496	)
5% Stock Dividend — Treasury shares				(10,562	)
Fractional Shares — 5% stock dividend				(766	)								(18	)								(18	)
Exercise of stock options				3,142			1			51			(4	)								48
Purchase of treasury stock				(1,209	)					(27	)											(27	)
Disposal of insurance division				(62,928	)					(1,380	)											(1,380	)
Issuance of common stock				2,000,000			1,000						31,660									32,660
Balance, December 31, 2005				13,472,616			6,881			(4,835	)		105,089			57,067			(3,133	)		161,069
	Net income														$	22,241					$	22,241			22,241
		Change in fair value of cash flow hedge, net																	(256	)		(256	)		(256	)
		Change in fair value of securities, net																	1,925			1,925			1,925
			Total comprehensive income																					$	23,910
Stock option expense													69									69
Issuance of common stock in acquisitions				4,484,008			2,242						76,945									79,187
Cash dividends ($.529 per share)																(8,944	)					(8,944	)
Purchase of treasury stock				(130,032	)					(2,290	)											(2,290	)
Other				1,355																		—
5% Stock Dividend				912,038			456						14,994			(15,450	)					—
Exercise of stock options				31,656			16			539			(309	)								246
Balance, December 31, 2006				18,771,641			9,595			(6,586	)		196,788			54,914			(1,464	)		253,247
	Net income															21,870						21,870			21,870
		Change in fair value of securities, net																	2,732			2,732			2,732
			Total comprehensive income																					$	24,602
Stock option expense													115									115
Cash dividends ($.555 per share)																(10,374	)					(10,374	)
Adjustment to initially apply FASB Interpretation 48																(411	)					(411	)
Purchase of treasury stock				(212,256	)					(3,407	)											(3,407	)
5% Stock Dividend — Treasury shares				(19,058	)																	—
Fractional Shares — 5% stock dividend				(1,051	)		(1	)					(17	)								(18	)
Exercise of stock options				30,863			16			506			(174	)								348
Balance, December 31, 2007				18,570,139		$	9,610		$	(9,487	)	$	196,712		$	65,999		$	1,268		$	264,102

The accompanying notes are an integral part of these consolidated financial statements.

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MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOW
YEARS ENDED DECEMBER 31, 2007, 2006, AND 2005
(Dollars in thousands)

				2007			2006			2005
Operating Activities
	Net income			$	21,870		$	22,241		$	16,192
	Adjustments to reconcile net income to net cash provided by operating activities:
		Provision for loan losses			5,745			1,819			1,040
		Depreciation and amortization			4,174			3,869			3,087
		Amortization of mortgage servicing rights			567			519			558
		Securities amortization, net			(725	)		(521	)		1,197
		Amortization of core deposit intangibles			2,666			2,236			1,306
		Increase in cash surrender value of life insurance policies			(1,535	)		(1,255	)		(891	)
		Gain on life insurance benefit			—			—			(459	)
		Securities (gains) losses			(114	)		(145	)		2,179
		Gain on loans sold			(1,166	)		(599	)		(944	)
		Loans originated for sale			(79,034	)		(62,804	)		(85,149	)
		Proceeds from loan sales			79,923			63,807			84,351
		Stock based compensation expense			115			69			—
		Change in other assets and liabilities			(10,660	)		(5,002	)		12,699
			Net cash provided by operating activities		21,826			24,234			35,166
Investing Activities
	Net change in short-term investments				—			210			94
	Proceeds from maturities and payments on securities held to maturity				—			—			277
	Purchases of securities available for sale				(140,466	)		(92,757	)		(257,256	)
	Proceeds from maturities and payments on securities available for sale				50,017			64,855			119,472
	Proceeds from sales of securities available for sale				91,057			26,075			106,556
	Purchases of restricted stock				—			—			(2,834	)
	Proceeds from life insurance benefit				—			—			1,675
	Loan originations and payments, net				(121,411	)		(17,792	)		19,856
	Purchases of premises and equipment				(5,718	)		(3,381	)		(3,455	)
	Proceeds from redemption of restricted stock				—			2,628			—
	Cash received (paid) for bank acquisitions, net				—			(2,210	)		111,785
			Net cash provided (used) by investing activities		(126,521	)		(22,372	)		96,170
Financing Activities
	Net change in deposits				42,140			16,992			(58,374	)
	Net change in other borrowings				7,850			15,790			(30,659	)
	Repayment of note payable				—			—			(9,100	)
	Proceeds from FHLB advances				345,000			197,000			220,000
	Repayment of FHLB advances				(296,344	)		(213,706	)		(269,434	)
	Proceeds from issuance of subordinated debentures				—			11,000			—
	Proceeds from common stock issuance				—			—			32,660
	Purchase of treasury shares				(3,407	)		(2,290	)		(27	)
	Cash dividends and fractional share payments				(10,392	)		(8,944	)		(6,514	)
	Proceeds from exercise of stock options				348			246			48
			Net cash provided (used) by financing activities		85,195			16,088			(121,400	)
Net change in cash and cash equivalents					(19,500	)		17,950			9,936
Cash and cash equivalents, beginning of year					104,155			86,205			76,269
Cash and cash equivalents, end of year				$	84,655		$	104,155		$	86,205
Supplemental cash flow information
		Interest paid		$	69,482		$	47,804		$	25,845
		Income taxes paid			6,315			3,760			5,658
Supplemental non cash disclosure
		Loan balances transferred to foreclosed real estate			2,544			4,071			3,692

The accompanying notes are an integral part of these consolidated financial statements.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(Dollar amounts in thousands except per share data)

NOTE 1 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

       Nature of Operations and Principles of Consolidation: The consolidated financial statements include MainSource Financial Group, Inc. and its wholly owned subsidiaries, together referred to as "the Company". Intercompany transactions and balances are eliminated in consolidation.

       The Company's wholly owned subsidiaries include MainSource Bank, MainSource Bank of Illinois, and MainSource Bank — Ohio (collectively referred to herein as the "Banks"), and MainSource Insurance, LLC, and MainSource Title, LLC. In February 2007, the Company transferred substantially all of the assets of MainSource Mortgage, LLC into MainSource Bank. In May 2007, the Company transferred substantially all of the assets of MainSource Bank — Hobart into MainSource Bank. In September 2007, the Company merged MainSource Bank — Crawfordsville into MainSource Bank.

       The Company provides financial services through its offices in Indiana, Illinois, and Ohio. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential mortgage, commercial, and installment loans. Substantially all loans are secured by specific items of collateral including business assets, consumer assets and real estate. Commercial loans are expected to be repaid from cash flow from operations of businesses. Real estate loans are secured by both residential and commercial real estate. Other financial instruments which potentially represent concentrations of credit risk include deposit accounts in other financial institutions and federal funds sold.

       Use of Estimates: To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided and actual results could differ. The allowance for loan losses, loan servicing rights, and fair values of financial instruments are particularly subject to change.

       Cash Flows: Cash and cash equivalents include cash and due from banks, interest bearing deposits with other financial institutions with maturities under 90 days, money market funds and federal funds sold. Net cash flows are reported for loan and deposit transactions, federal funds purchased and repurchase agreements.

       Interest-bearing Deposits in Other Financial Institutions: Interest-bearing deposits in other financial institutions mature within one year and are carried at cost.

       Securities: Securities are classified as available for sale when they might be sold before maturity. Securities available for sale are carried at fair value, with unrealized holding gains and losses reported in other comprehensive income, net of tax.

       Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are amortized on the level-yield method, which considers prepayments on mortgage-backed securities. Gains and losses on sales are based on the amortized cost of the security sold. Declines in the fair value of securities below their cost that are other than temporary are reflected as realized losses. In estimating other-than-temporary losses, management considers the length of time and extent that fair value has been less than cost, the financial condition and near term prospects of the issuer, and the Company's ability and intent to hold the security for a period sufficient to allow for any anticipated recovery in fair value.

       Loans Held for Sale: Loans originated and intended for sale in the secondary market are carried at the lower of cost or market in the aggregate. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings.

       Mortgage loans held for sale are generally sold with servicing rights retained. The carrying value of mortgage loans sold is reduced by the amount allocated to the servicing right. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related loan sold.

       Loans: Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding, net of unearned interest, deferred loan fees and costs, and an allowance for loan losses. Interest income is accrued on the unpaid principal balance. Loan originations fees, net of certain direct origination costs, are deferred and recognized in interest income using the level-yield method without anticipating prepayments.

       Interest income is not reported when full loan repayment is in doubt, typically when the loan is impaired or payments are past due over 90 days. Loans are placed on non-accrual or charged-off at an earlier date if collection of principal or interest is considered doubtful.

       All interest accrued but not received for loans placed on nonaccrual is reversed against interest income. Payments received on such loans subsequent to being placed on non-accrual are applied to the principal balance of the loans. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

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       Purchased Loans: The Company purchases individual loans and groups of loans. Purchased loans that show evidence of credit deterioration since origination are recorded at the amount paid (or allocated fair value in a purchase business combination), such that there is no carryover of the seller's allowance for loan losses. After acquisition, incurred losses are recognized by an increase in the allowance for loan losses.

       Purchased loans are accounted for individually based on common risk characteristics (e.g., credit score, loan type, and date of origination). The Company estimates the amount and timing of expected cash flows for each purchased loan, and the expected cash flows in excess of amount paid is recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan's contractual principal and interest over expected cash flows is not recorded (nonaccretable difference).

       Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a loss is recorded. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income.

       Allowance for Loan Losses: The allowance for loan losses is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management's judgment, should be charged-off.

       The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired or loans otherwise classified as substandard or doubtful. The general component covers pools of other loans and is based on historical loss experience adjusted for current factors.

       A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower's prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer and residential real estate loans for impairment disclosures.

       Restricted Stock: The Bank is a member of the "FHLB" system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment. Because this stock is viewed as a long term investment, impairment is based on ultimate recovery of par value. Both cash and stock dividends are reported as income.

       Premises and Equipment: Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Buildings and related components are depreciated using the straight-line method with useful lives ranging from 30 to 39 years for buildings and 5 to 15 years for related components. Furniture, fixtures and equipment are depreciated using the straight-line method with useful lives ranging from 3 to 10 years.

       Foreclosed Assets: Assets acquired through or instead of loan foreclosure are initially recorded at fair value when acquired net of estimated selling costs, establishing a new cost basis. If fair value declines after acquisition, a valuation allowance is recorded through expense. Costs after acquisition are expensed.

       Company Owned Life Insurance: The Company has purchased life insurance policies on certain employees. Company owned life insurance is recorded at its cash surrender value, or the amount that can be realized. Upon adoption of EITF 06-5, which is discussed further below, Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. Prior to adoption of EITF 06-5, the Company recorded owned life insurance at its cash surrender value. In September 2006, the FASB Emerging Issues Task Force finalized Issue No. 06-5, Accounting for Purchases of Life Insurance — Determining the Amount That Could Be Realized in Accordance with FASB Technical Bulletin No. 85-4 (Accounting for Purchases of Life Insurance). This Issue requires that a policyholder consider contractual terms of a life insurance policy in determining the amount that could be realized under the insurance contract. It also requires that if the contract provides for a greater surrender value if all individual policies in a group are surrendered at the same time, that the surrender value be determined based on the assumption that

29

policies will be surrendered on an individual basis. Lastly, the Issue requires disclosure when there are contractual restrictions on the Company's ability to surrender a policy. The adoption of EITF 06-5 on January 1, 2007 had no impact on the Company's financial condition or results of operation.

       Servicing Assets: Servicing rights are recognized separately when they are acquired through sales of loans. For sales of mortgage loans prior to January 1, 2007, a portion of the cost of the loan was allocated to the servicing right based on relative fair values. The Company adopted SFAS No. 156 on January 1, 2007, and for sales of mortgage loans beginning in 2007, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, the custodial earnings rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. The Company compares the valuation model inputs and results to published industry data in order to validate the model results and assumptions. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans.

       Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. Changes in valuation allowances are reported with mortgage banking on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.

       Servicing fee income which is reported on the income statement as mortgage banking is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income. Servicing fees totaled $1,304, $1,374 and $1,381 for the years ended December 31, 2007, 2006 and 2005. Late fees and ancillary fees related to loan servicing are not material.

       Mortgage banking income consists of gains on loan sales and loan servicing fee income, net of amortization of mortgage servicing rights.

       Transfers of Financial Assets: Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement or option to repurchase them before their maturity.

       Goodwill and Other Intangible Assets: Goodwill results from business acquisitions and represents the excess of the purchase price over the fair value of acquired tangible assets and liabilities and identifiable intangible assets. Goodwill is assessed at least annually for impairment and any such impairment will be recognized in the period identified.

       Other intangible assets consist largely of core deposit intangibles arising from whole bank and branch acquisitions. They are initially measured at fair value and then are amortized on an accelerated method over their estimated useful lives, generally ten years.

       Long-term Assets: Premises and equipment and other long-term assets are reviewed for impairment when events indicate their carrying amount may not be recoverable from future undiscounted cash flows. If impaired, the assets are recorded at fair value.

       Repurchase Agreements: Substantially all repurchase agreement liabilities represent amounts advanced by various customers. Securities are pledged to cover these liabilities, which are not covered by federal deposit insurance. Repurchase agreements are included in other borrowings on the consolidated balance sheets.

       Income Taxes: Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.

       The Company adopted FASB Interpretation 48, Accounting for Uncertainty in Income Taxes ("FIN 48"), as of January 1, 2007. A tax position is recognized as a benefit only if it is "more likely than not" that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the "more likely than not" test, no tax benefit is recorded. The adoption resulted in an increase in the Company's tax liability of $411.

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       The Company recognizes interest and/or penalties related to income tax matters in income tax expense.

       Loan Commitments and Related Financial Instruments: Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.

       Derivatives: All derivative instruments are recorded at their fair values. If derivative instruments are designated as hedges of fair values, both the change in fair value of the hedge and the hedged item are included in current earnings. Fair value adjustments related to cash flow hedges are recorded in other comprehensive income and reclassified to earnings when the hedged transaction is reflected in earnings. Ineffective portions of hedges are reflected in earnings as they occur.

       The Company settled its interest rate swap in 2006 and is not currently a party to any such transactions.

       Stock Compensation: Effective January 1, 2006, the Company adopted Statement of Financial Accounting Standards ("SFAS") No. 123(R), Share-based Payment, using the modified prospective transition method. Accordingly, the Company has recorded stock-based employee compensation cost using the fair value method starting in 2006.

       Prior to January 1, 2006, employee compensation expense under stock options was reported using the intrinsic value method; therefore, no stock-based compensation cost is reflected in net income for the year ending December 31, 2005 as all options granted had an exercise price equal to or greater than the market price of the underlying common stock at date of grant.

       The following table illustrates the effect on net income and earnings per share if expense was measured using the fair value recognition provisions of FASB Statement No. 123, Accounting for Stock-Based Compensation, for the year ended December 31, 2005. During 2005, the Company accelerated vesting on selected pools of stock options granted in order to reduce expense that would have been recognized upon adoption of FAS 123(R).

	2005
Net income as reported	$	16,192
Deduct: Stock-based compensation expense, net, determined under fair value based method		517
Pro forma net income	$	15,675
Basic earnings per share as reported	$	1.23
Pro forma basic earnings per share	$	1.19
Diluted earnings per share as reported	$	1.23
Pro forma diluted earnings per share	$	1.19

       Retirement Plans: Employee 401(k) and profit sharing plan expense is the amount of matching contributions.

       Earnings Per Common Share: Basic earnings per common share is net income divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable under stock options. Earnings and dividends per share are restated for all stock splits and dividends through the date of issue of the financial statements.

       Comprehensive Income: Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes unrealized gains and losses on securities available for sale and unrealized gains and losses on cash flow hedges, which are also recognized as a separate component of equity.

       Loss Contingencies: Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there are now any such matters that will have a material effect on the financial statements.

       Equity: Stock dividends in excess of 20% are reported by transferring the par value of the stock issued from retained earnings to common stock. Stock dividends for 20% or less are reported by transferring the fair value, as of the ex-dividend date, of the stock issued from retained earnings to common stock and additional paid-in capital. Fractional share amounts are paid in cash with a reduction in retained earnings.

       Dividend Restriction: Banking regulations require maintaining certain capital levels and may limit the dividends paid by the banks to the holding company or by the holding company to shareholders.

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       Fair Value of Financial Instruments: Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.

       Operating Segments: While the Company's chief decision-makers monitor the revenue streams of the various Company products and services, the identifiable segments are not material and operations are managed and financial performance is evaluated on a Company-wide basis. Accordingly, all of the Company's financial service operations are considered by management to be aggregated in one reportable operating segment.

       Reclassifications: Some items in the prior year financial statements were reclassified to conform to the current presentation.

       Recently Issued Accounting Standards: During 2007, the Company adopted the following accounting standards and guidance:

       Effective January 1, 2007, the Company adopted FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes — an interpretation of FASB Statement No. 109 (FIN 48), which prescribes a recognition threshold and measurement attribute for a tax position taken or expected to be taken in a tax return. FIN 48 also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. As mentioned above in the income taxes section, the Company recorded an increase in its tax liability account of $411 by adopting this standard

       In February 2006, the FASB issued Statement of Financial Accounting Standards No. 155, Accounting for Certain Hybrid Financial Instruments (SFAS No. 155), which permits fair value remeasurement for hybrid financial instruments that contain an embedded derivative that otherwise would require bifurcation. Additionally, SFAS No. 155 clarifies the accounting guidance for beneficial interests in securitizations. Under SFAS No. 155, all beneficial interests in a securitization will require an assessment in accordance with SFAS No. 133 to determine if an embedded derivative exists within the instrument. In January 2007, the FASB issued Derivatives Implementation Group Issue B40, Application of Paragraph 13(b) to Securitized Interests in Prepayable Financial Assets (DIG Issue B40). DIG Issue B40 provides an exemption from the embedded derivative test of paragraph 13(b) of SFAS No. 133 for instruments that would otherwise require bifurcation if the test is met solely because of a prepayment feature included within the securitized interest and prepayment is not controlled by the security holder. SFAS No. 155 and DIG Issue B40 were effective for fiscal years beginning after September 15, 2006. The adoption of SFAS No. 155 and DIG Issue B40 did not have a material impact on the Company's consolidated financial position or results of operations.

Effect of Newly Issued But Not Yet Effective Accounting Standards:

       In September 2006, the FASB issued Statement No. 157, Fair Value Measurements. This Statement defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. This Statement establishes a fair value hierarchy about the assumptions used to measure fair value and clarifies assumptions about risk and the effect of a restriction on the sale or use of an asset. The standard is effective for fiscal years beginning after November 15, 2007. Management is currently evaluating the impact but expects it to not be material.

       In February 2007, the FASB issued Statement No. 159, The Fair Value Option for Financial Assets and Financial Liabilities. The standard provides companies with an option to report selected financial assets and liabilities at fair value and establishes presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement attributes for similar types of assets and liabilities. The new standard is effective for the Company on January 1, 2008. The Company did not elect the fair value option for any financial assets or financial liabilities as of January 1, 2008.

       In September 2006, the FASB Emerging Issues Task Force finalized Issue No. 06-4, Accounting for Deferred Compensation and Postretirement Benefit Aspects of Endorsement Split-Dollar Life Insurance Arrangements. This issue requires that a liability be recorded during the service period when a split-dollar life insurance agreement continues after participants' employment or retirement. The required accrued liability will be based on either the post-employment benefit cost for the continuing life insurance or based on the future death benefit depending on the contractual terms of the underlying agreement. This issue is effective for fiscal years beginning after December 15, 2007. The Company has determined that the adoption of this EITF will not have a material effect on the financial statements.

       On November 5, 2007, the SEC issued Staff Accounting Bulletin No. 109, Written Loan Commitments Recorded at Fair Value through Earnings ("SAB 109"). Previously, SAB 105, Application of Accounting Principles to Loan Commitments, stated that in measuring the fair value of a derivative loan commitment, a company should not incorporate the expected net future cash flows related to the associated servicing of the loan. SAB 109 supersedes SAB 105 and indicates that the expected net future cash flows related to the associated servicing of the loan should be included in measuring fair value for all written loan commitments that are accounted for at fair value through earnings. SAB 105 also indicated that internally-developed intangible assets should not be recorded as part of the fair value of a derivative loan commitment, and SAB 109 retains that view. SAB 109 is effective for derivative

32

loan commitments issued or modified in fiscal quarters beginning after December 15, 2007. The Company does not expect the impact of this standard to be material.

NOTE 2 — RESTRICTION ON CASH AND DUE FROM BANKS

       The Banks are required to maintain reserve funds in cash or on deposit with the Federal Reserve Bank which do not earn interest. The reserves required at December 31, 2007 and 2006 were $12,972 and $17,573 respectively. The Company also had compensating balances of $4,970 and $4,499 at December 31, 2007 and 2006 respectively.

NOTE 3 — SECURITIES

       The fair value of securities available for sale and gross related unrealized gains and losses recognized in accumulated other comprehensive income (loss) was as follows:

			Fair Value		Gross Unrealized Gains		Gross Unrealized Losses
As of December 31, 2007
Available for Sale
	U.S. Government-sponsored entities		$	31,964	$	187	$	(2	)
	State and municipal			127,697		1,812		(330	)
	Mortgage-backed			323,206		1,969		(1,697	)
	Equity and other			6,872		57		(38	)
		Total available for sale	$	489,739	$	4,025	$	(2,067	)
As of December 31, 2006
Available for Sale
	U.S. Government-sponsored entities		$	90,285	$	104	$	(481	)
	State and municipal			122,343		1,752		(436	)
	Mortgage-backed			263,006		716		(4,127	)
	Equity and other			9,625		181		—
		Total available for sale	$	485,259	$	2,753	$	(5,044	)

       Contractual maturities of securities at December 31, 2007 were as follows. Securities not due at a single maturity or with no maturity at year end are shown separately.

		Available for Sale
		Fair Value
Within one year		$	14,584
One through five years			24,701
Six through ten years			59,312
After ten years			61,064
Mortgage-backed			323,206
Equity and other			6,872
	Total available for sale securities	$	489,739

       Gross proceeds from sales of securities available for sale during 2007, 2006 and 2005 were $91,057, $26,075, and $106,556. Gross gains of $642, $166, and $294 and gross losses of $28, $21, and $2,473 were realized on those sales in 2007, 2006 and 2005, respectively. The tax benefit (provision) related to these net realized gains and losses was ($221), ($56), and $796 respectively.

       Securities with a carrying value of $180,691 and $165,683 were pledged at December 31, 2007 and 2006 to secure certain deposits, repurchase agreements and for other purposes as permitted or required by law.

       At year end 2007 and 2006, there were no holdings of securities of any one issuer, other than the U.S. Government and its sponsored entities in an amount greater than 10% of shareholders' equity.

33

       Below is a summary of securities with unrealized losses as of year-end 2007 and 2006 presented by length of time the securities have been in a continuous unrealized loss position.

2007	Less than 12 months					12 months or longer					Total
Description of securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Government-sponsored entities	$	—	$	—		$	998	$	(2	)	$	998	$	(2	)
State and municipal		8,178		(110	)		20,617		(220	)		28,795		(330	)
Mortgage-backed		11,664		(54	)		127,193		(1,643	)		138,857		(1,697	)
Equity and other		2,062		(38	)		—		—			2,062		(38	)
Total temporarily impaired	$	21,904	$	(202	)	$	148,808	$	(1,865	)	$	170,712	$	(2,067	)
2006	Less than 12 months					12 months or longer					Total
Description of securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Government-sponsored entities	$	33,918	$	(94	)	$	27,203	$	(387	)	$	61,121	$	(481	)
State and municipal		6,442		(32	)		30,189		(404	)		36,631		(436	)
Mortgage-backed		49,859		(188	)		154,855		(3,939	)		204,714		(4,127	)
Equity and other		—		—			—		—			—		—
Total temporarily impaired	$	90,219	$	(314	)	$	212,247	$	(4,730	)	$	302,466	$	(5,044	)

       Unrealized losses on state and municipal securities have not been recognized into income because management has the intent and ability to hold for a period of time sufficient to allow for any anticipated recovery in fair value. The fair value of these debt securities is expected to recover as the securities approach their maturity date.

       Unrealized losses on mortgage-backed securities and agencies have not been recognized into income as the decline in fair value is largely due to increases in market interest rates. The fair value is expected to recover as the securities approach their maturity date and/or market rates decline.

       During 2007, the Company identified one security that is considered to be other than temporarily impaired. The Company wrote down the value of that security by $500 to its fair value. This amount was included in net realized gains/(losses) on securities.

NOTE 4 — LOANS AND ALLOWANCE FOR LOAN LOSSES

       Loans were as follows:

		December 31, 2007			December 31, 2006
Commercial and industrial loans		$	214,393		$	173,557
Agricultural production financing			29,812			25,588
Farm real estate			42,185			46,051
Commercial real estate			326,194			286,603
Hotel			50,565			42,681
Residential real estate			780,102			790,962
Construction and development			123,611			79,261
Consumer			126,816			129,681
	Total loans		1,693,678			1,574,384
Allowance for loan losses			(14,331	)		(12,792	)
	Net loans	$	1,679,347		$	1,561,592

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       Activity in the allowance for loan losses was as follows:

December 31		2007			2006			2005
Allowance for loan losses
	Balances, January 1	$	12,792		$	10,441		$	11,698
	Addition resulting from acquisitions		—			3,895			1,002
	Provision for losses		5,745			1,819			1,040
	Recoveries on loans		1,152			536			284
	Loans charged off		(5,358	)		(3,899	)		(3,583	)
	Balances, December 31	$	14,331		$	12,792		$	10,441

       Impaired loans were as follows:

December 31		2007		2006		2005
Impaired loans with an allowance allocated		$	12,964	$	6,608	$	5,888
Impaired loans with no allocated allowances			8,327		15,359		4,239
	Total impaired loans	$	21,291	$	21,967	$	10,127
Allowance allocated for impaired loans		$	2,346	$	1,613	$	1,615
Average balance of impaired loans during the year		$	21,761	$	17,934	$	13,431
Interest income recognized on impaired loans			644		591		17
Cash basis interest included above			644		568		17

       Nonperforming loans were as follows:

December 31	2007		2006
Loans past due 90 days or more still on accrual	$	1,693	$	1,460
Nonaccrual loans		18,800		16,021
	$	20,493	$	17,481

       Nonperforming loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans.

Purchased Loans subject to SOP 03-3

       The Company has purchased loans in 2006, for which there was, at acquisition, evidence of deterioration of credit quality since origination and it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of those loans is as follows as of December 31:

		2007		2006
Commercial real estate		$	6,945	$	7,747
Construction			—		1,452
Mortgage			354		527
Consumer			249		269
	Outstanding balance		7,548		9,995
	Carrying amount, net of allowance of $565 and $0	$	5,951	$	8,907

       Accretable yield, or income expected to be collected is as follows:

Balance December 31, 2006	$	—
Accretion of income		84
Reclassification from nonaccretable difference		(84	)
Balance December 31, 2007	$	—

       For those purchased loans disclosed above, the Company increased the allowance for loan losses by $565 and $0 during 2007 and 2006. No allowance for loan losses were reversed in 2007 or 2006. These loans were considered impaired at December 31, 2007 and 2006 and no accretable yield was assigned at the date of acquisition.

35

       Purchased loans for which it was probable at acquisition that all contractually required payments would not be collected are shown below. No such loans were acquired in 2007.

			2006
Contractually required payments receivable of loans purchased during the year:
	Commercial real estate		$	8,903
	Construction			1,454
	Mortgage loans			1,626
	Consumer			296
		Total		12,279
Cash flows expected to be collected at acquisition				11,554
Basis in acquired loans at acquisition				11,554

NOTE 5 — PREMISES AND EQUIPMENT

December 31		2007			2006
Land		$	7,726		$	7,847
Buildings			37,536			36,082
Furniture and equipment			30,560			28,203
	Total cost		75,822			72,132
Accumulated depreciation			(35,339	)		(31,762	)
	Net	$	40,483		$	40,370

       Depreciation expense was $4,174, $3,869, and $3,087 in 2007, 2006 and 2005.

NOTE 6 — GOODWILL AND INTANGIBLE ASSETS

Goodwill

       The change in carrying amount of goodwill is as follows:

	2007		2006
Beginning of year	$	120,609	$	51,301
Acquired goodwill		1,437		69,308
End of year	$	122,046	$	120,609

       The acquired goodwill reported in 2007 is due to finalization of fair value adjustments related to purchase accounting for the 2006 acquisitions.

Acquired Intangible Assets

	2007			2006
Core deposit intangibles	$	25,002		$	25,002
Accumulated amortization		(11,724	)		(9,058	)
Core deposit intangibles, net	$	13,278		$	15,944

       Aggregate amortization expense was $2,666, $2,236, and $1,306 for 2007, 2006, and 2005.

       Estimated amortization expense for each of the next five years follows:

2008	$	2,521
2009		1,924
2010		1,786
2011		1,670
2012		1,530

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NOTE 7 — DEPOSITS

		December 31, 2007		December 31, 2006
Non-interest-bearing demand		$	200,753	$	193,513
Interest-bearing demand			532,539		466,212
Savings			345,869		335,405
Certificates of deposit of $100 or more			238,211		285,262
Other certificates and time deposits			584,457		579,297
	Total deposits	$	1,901,829	$	1,859,689

       Certificates and other time deposits mature as follows:

2008	$	661,929
2009		107,781
2010		27,842
2011		12,321
2012		2,544
Thereafter		10,251
Total	$	822,668

NOTE 8 — OTHER BORROWINGS

December 31	2007		2006
Other borrowings consisted of the following at year-end:
Securities sold under repurchase agreements	$	30,006	$	29,306
Line of credit		13,000		13,000
Federal funds purchased		7,150		—
Total short-term borrowings	$	50,156	$	42,306

       Securities sold under repurchase agreements ("agreements") consist of obligations secured by securities issued by Government-sponsored entities, and a safekeeping agent holds such collateral. The maximum amount of outstanding repurchase agreements at any month-end during 2007, 2006, and 2005 totaled $52,986, $36,212, and $28,581. The daily average of such agreements during 2007, 2006, and 2005 totaled $37,296, $23,200, and $21,661. The weighted average rate was 3.05%, 3.31%, and 2.36% at December 31, 2007, 2006, and 2005 while the weighted average rate during 2007, 2006, and 2005 was approximately 3.35%, 3.22%, and 1.98% respectively. The majority of the agreements at December 31, 2007 mature within 30 days.

       The Company has a revolving credit facility for $30,000 as a standby for funding needs which matures September 30, 2009. The interest rate is 120 basis points above the 3-month LIBOR rate which resulted in a rate of 6.24% at year-end 2007. The line is secured by the stock of MainSource Bank. The line of credit agreement contains various financial and non-financial covenants. The Company was in compliance with these covenants at December 31, 2007.

NOTE 9 — FEDERAL HOME LOAN BANK ADVANCES

       Federal Home Loan Bank ("FHLB") advances at year end were as follows:

	2007		2006
Maturities from January 2008 through May 2022, primarily fixed rates from 3.4% to 6.4%, averaging 4.5%	$	257,099	$	—
Maturities from February 2007 through May 2022, primarily fixed rates from 2.4% to 6.5%, averaging 4.8%		—		208,443
	$	257,099	$	208,443

       The majority of the FHLB advances are secured by first mortgage loans totaling approximately 150% of the advance under a blanket security agreement. The advances are subject to restrictions or penalties in the event of prepayment.

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       Maturities over the next five years are:

2008	$	89,273
2009		10,217
2010		71,761
2011		14,681
2012		20,562
Thereafter		50,605

NOTE 10 — SUBORDINATED DEBENTURES

       The Company formed four separate trusts in 2002, 2003, and 2006 that issued floating rate trust preferred securities as part of pooled offerings. The Company issued subordinated debentures to the trusts in exchange for the proceeds of the offerings, which debentures represent the sole asset of the trusts. In accordance with FASB Interpretation No. 46, the trusts are not consolidated with the Company's financial statements, but rather the subordinated debentures are shown as a liability. Interest payments are payable quarterly in arrears and the Company has the option to defer interest payments from time to time for a period not to exceed 20 consecutive quarters. The subordinated debentures mature in 30 years from issuance and can be called anytime after five years at par. The subordinated debentures may be included in Tier 1 capital (with certain limitations) under current regulatory guidelines and interpretations. The following table summarizes the other terms of each issuance.

	Issuance	Amount		Variable Rate	Rate as of 12/31/07		Maturity
Trust 1	2002	$	8,248	LIBOR +3.25%	8.11	%	2032
Trust 2	2003		14,433	LIBOR +3.25%	8.08	%	2033
Trust 3	2003		7,217	LIBOR +3.15%	8.14	%	2033
Trust 4	2006		11,341	LIBOR +1.63%	6.62	%	2036

       During 2003, the Company entered into an interest rate swap and cap to mitigate overall risk to changes in interest rates for subordinated debt in Trust 2. Both the interest rate swap and the cap had a 60 month term and a notional principal amount of $14,000. The notional amount of the interest rate swaps do not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amounts and other terms of the contract. The interest rate swap and cap were designated as cash flow hedges against a portion of the subordinated debentures. As such, the aggregate fair value of the swaps were recorded as other assets or other liabilities with changes in the fair value recorded in other comprehensive income and no amount of ineffectiveness was included in net income. Under the interest rate swap agreement, the Company made fixed rate payments at 6.65%, and received variable payments based on LIBOR. Net settlement expense or benefit was included in interest expense. The interest rate cap required the counter-party to pay the Company the excess of 3 month LIBOR over 12%. The interest rate swap and cap were settled during 2006 resulting in a payment to the Company of $483.

NOTE 11 — LOAN SERVICING

       Loans serviced for others are not included in the accompanying consolidated balance sheets. Loan servicing fee income was $1,303, $1,383, and $1,318 for 2007, 2006, and 2005. The unpaid principal balances of loans serviced for others totaled $533,286 and $521,908 at December 31, 2007 and 2006. Custodial escrow balances maintained in connection with serviced loans were $1,001 and $903 at year end 2007 and 2006. Mortgage servicing rights are included in other assets on the consolidated balance sheets. The fair value of capitalized mortgage servicing assets is based on comparable market values and expected cash flows, with impairment assessed based on portfolio characteristics including product type and interest rates. No valuation allowance was necessary during 2007, 2006 or 2005. The fair market value of capitalized mortgage servicing rights was estimated at $4,922 and $6,419 at year end 2007 and 2006. Fair value at year-end 2007 was determined using a discount rate of 10%, and prepayment speeds ranging from 190% to 353%, depending on the stratification of the specific right.

		2007			2006
Mortgage servicing assets
	Balances, January 1	$	3,491		$	3,158
	Servicing assets capitalized/acquired		1,025			852
	Amortization of servicing assets		(567	)		(519	)
	Balance, December 31	$	3,949		$	3,491

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       The weighted average amortization period is 5.1 years. Estimated amortization expense for each of the next five years is:

2008	$	765
2009		667
2010		541
2011		437
2012		351

NOTE 12 — INCOME TAX

       Income tax expense (benefit) was as follows:

Year Ended December 31			2007		2006		2005
Income tax expense
	Currently payable		$	5,605	$	4,706	$	2,972
	Deferred			536		2,049		1,561
	Change in valuation allowance			747		850		639
		Total income tax expense	$	6,888	$	7,605	$	5,172

       Effective tax rates differ from the federal statutory rate of 35% applied to income before income taxes due to the following:

Federal statutory income tax rate			35	%		35	%		35	%
Federal statutory income tax		$	10,065		$	10,446		$	7,477
Tax exempt interest			(1,702	)		(1,922	)		(1,612	)
Effect of state income taxes			86			96			25
Non-deductible expenses			241			53			36
Tax exempt income on life insurance			(548	)		(439	)		(472	)
Tax credits			(823	)		(377	)		(132	)
Other			(431	)		(252	)		(150	)
	Income tax expense	$	6,888		$	7,605		$	5,172

       The components of the net deferred tax asset (liability) are as follows:

December 31			2007			2006
Assets
	Allowance for loan losses		$	5,250		$	4,477
	Net operating loss carryforward			2,478			1,731
	Deferred compensation			425			425
	Fair value adjustments on assets acquired			2,566			3,536
	Accrued expenses			24			250
	Unrealized loss on securities AFS			—			827
	Other			634			384
		Total assets		11,377			11,630
Liabilities
	Accretion on securities			(105	)		(135	)
	Depreciation			(1,508	)		(1,694	)
	Intangibles			(4,227	)		(3,673	)
	Mortgage servicing rights			(1,382	)		(1,239	)
	Deferred loan fees/costs			(298	)		(570	)
	FHLB stock dividends			(1,622	)		(1,622	)
	Unrealized gain on securities AFS			(690	)		—
	Other			(1,188	)		(1,165	)
		Total liabilities		(11,020	)		(10,098	)
Less: Valuation allowance				(2,478	)		(1,731	)
		Net deferred tax asset (liability)	$	(2,121	)	$	(199	)

39

       The Company has an Indiana state operating loss carryforward of $29,153, which begins to expire in 2019. The Company maintains a valuation allowance as it does not anticipate generating taxable income in Indiana to utilize this carryforward prior to expiration.

       Retained earnings of certain subsidiary banks include approximately $10,977 for which no deferred income tax liability has been recognized. This amount represents an allocation of income to bad debt deductions as of December 31, 1987 for tax purposes only. Reduction of amounts so allocated for purposes other than tax bad debt losses including redemption of bank stock or excess dividends, or loss of "bank" status would create income for tax purposes only, which would be subject to the then-current corporate income tax rate. The unrecorded deferred income tax liability on the above amount for the Company at December 31, 2007 was approximately $3,842.

Unrecognized Tax Benefits

       A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

Balance at January 1, 2007	$	836
Additions related to tax positions in current year		228
Additions related to tax positions of prior years		—
Reductions due to statute of limitations		(41	)
Balance at December 31, 2007	$	1,023

       Of this total, $1,023 represents the amount of unrecognized tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods. The Company does not expect the total amount of unrecognized tax benefits to significantly increase or decrease in the next twelve months.

       The total amount of interest and penalties recorded in the income statement for the year ended December 31, 2007 was $53, and the amount accrued for interest and penalties at December 31, 2007 was $128.

       The Company and its subsidiaries are subject to U.S. federal income tax as well as income tax of the states of Indiana and Illinois. The Company is no longer subject to examination by taxing authorities for years before 2003.

NOTE 13 — OTHER COMPREHENSIVE INCOME

Year Ended December 31, 2007		Before-Tax Amount			Tax (Expense)/ Benefit			Net-of-Tax Amount
Unrealized holding gains on available for sale securities		$	4,363		$	(1,558	)	$	2,805
Less: reclassification adjustment for gains realized in net income			114			(41	)		73
	Other comprehensive income	$	4,249		$	(1,517	)	$	2,732
Year Ended December 31, 2006		Before-Tax Amount			Tax (Expense)/ Benefit			Net-of-Tax Amount
Unrealized holding gains on available for sale securities		$	3,126		$	(1,112	)	$	2,014
Change in fair value of interest rate swap and cap			57			(23	)		34
Less: reclassification adjustment for gains realized in net income			628			(249	)		379
	Other comprehensive income	$	2,555		$	(886	)	$	1,669
Year Ended December 31, 2005		Before-Tax Amount			Tax (Expense)/ Benefit			Net-of-Tax Amount
Unrealized holding losses on available for sale securities		$	(7,626	)	$	2,788		$	(4,838	)
Change in fair value of interest rate swap and cap			374			(149	)		225
Less: reclassification adjustment for losses realized in net income			(2,179	)		796			(1,383	)
	Other comprehensive loss	$	(5,073	)	$	1,843		$	(3,230	)

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NOTE 14 — COMMITMENTS

       Some financial instruments, such as loan commitments, credit lines, letters of credit, and overdraft protection, are issued to meet customer financing needs. These are agreements to provide credit or to support the credit of others, as long as conditions established in the contract are met, and usually have expiration dates. Commitments may expire without being used. Off-balance-sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment.

       Financial instruments whose contract amount represents credit risk as of December 31 were as follows:

	2007				2006
	Fixed Rate		Variable Rate		Fixed Rate		Variable Rate
Commitments to extend credit and unused lines of credit	$	16,164	$	353,123	$	11,993	$	319,007
Commercial letters of credit		—		23,588		528		20,063

       Commitments to make loans are generally made for periods of 60 days or less. The fixed loan commitments have interest rates ranging from 5.50% to 9.25% and maturities up to a year in length.

NOTE 15 — STOCK DIVIDENDS AND SPLITS

       On December 21, 2006, the Company announced a 5% stock dividend to be paid on January 16, 2007 to shareholders of record as of December 31, 2006. The stock dividend was recorded in 2006, and all share and per share amounts have been retroactively adjusted for all prior years to reflect this stock dividend.

NOTE 16 — DIVIDENDS

       Without prior approval, the Banks are restricted by state and federal regulations as to the maximum amount of dividends they can pay to the Company in any calendar year. The Banks may dividend their retained net profits (as defined) for that year and the two preceding years. From time to time, the Company may seek the approval of the appropriate regulatory authorities to allow the Banks to pay additional dividends to the Company in excess of the aforementioned amount. At December 31, 2007, total shareholders' equity of the Banks was $311,569 of which $311,569 was restricted or limited from dividend distribution to the Company.

NOTE 17 — DIVIDEND REINVESTMENT PLAN

       The Company maintains an Automatic Dividend Reinvestment Plan. The plan enables shareholders to elect to have their cash dividends on all or a portion of shares held automatically reinvested in additional shares of the Company's common stock. The stock is purchased by the Company's transfer agent on the open market and credited to participant accounts at fair market value. Dividends are reinvested on a quarterly basis.

NOTE 18 — REGULATORY CAPITAL

       Banks and bank holding companies are subject to various regulatory capital requirements administered by the federal banking agencies and are assigned to a capital category. The assigned capital category is largely determined by three ratios that are calculated according to the regulations. The ratios are intended to measure capital relative to assets and credit risk associated with those assets and off-balance sheet exposures. The capital category assigned to an entity can also be affected by qualitative judgments made by regulatory agencies about the risk inherent in the entity's activities that are not part of the calculated ratios. Failure to meet capital requirements can initiate regulatory action. Management believes as of December 31, 2007, the Company and Banks meet all capital adequacy requirements to which they are subject.

       There are five capital categories defined in the regulations, ranging from well capitalized to critically undercapitalized. Classification in any of the undercapitalized categories can result in actions by regulators that could have a material effect on operations. At December 31, 2007 and 2006, the most recent regulatory notifications categorized the Banks as well capitalized under the regulatory framework for prompt corrective actions. There are no conditions or events since that notification that management believes have changed the Banks' category.

41

       Actual and required capital amounts and ratios are presented below.

		Actual				Required for Adequate Capital				To Be Well Capitalized
December 31, 2007		Amount		Ratio		Amount		Ratio		Amount		Ratio
MainSource Financial Group
	Total capital (to risk-weighted assets)	$	181,837	10.8	%	$	134,219	8.0	%		N/A	N/A
	Tier 1 capital (to risk-weighted assets)		167,507	10.0			67,110	4.0			N/A	N/A
	Tier 1 capital (to average assets)		167,507	7.1			94,518	4.0			N/A	N/A
MainSource Bank
	Total capital (to risk-weighted assets)	$	159,151	11.2	%	$	114,018	8.0	%	$	142,523	10.0	%
	Tier 1 capital (to risk-weighted assets)		147,554	10.4			57,009	4.0			85,514	6.0
	Tier 1 capital (to average assets)		147,554	7.5			78,872	4.0			98,590	5.0
MainSource Bank of Illinois
	Total capital (to risk-weighted assets)	$	13,663	11.2	%	$	9,717	8.0	%	$	12,146	10.0	%
	Tier 1 capital (to risk-weighted assets)		12,416	10.2			4,858	4.0			7,288	6.0
	Tier 1 capital (to average assets)		12,416	6.4			7,750	4.0			9,688	5.0
MainSource Bank — Ohio
	Total capital (to risk-weighted assets)	$	17,564	13.9	%	$	10,084	8.0	%	$	12,606	10.0	%
	Tier 1 capital (to risk-weighted assets)		16,078	12.8			5,042	4.0			7,563	6.0
	Tier 1 capital (to average assets)		16,078	8.4			7,656	4.0			9,570	5.0
		Actual				Required for Adequate Capital				To Be Well Capitalized
December 31, 2006		Amount		Ratio		Amount		Ratio		Amount		Ratio
MainSource Financial Group
	Total capital (to risk-weighted assets)	$	170,950	11.2	%	$	122,400	8.0	%		N/A	N/A
	Tier 1 capital (to risk-weighted assets)		158,158	10.3			61,200	4.0			N/A	N/A
	Tier 1 capital (to average assets)		158,158	7.0			90,130	4.0			N/A	N/A
MainSource Bank
	Total capital (to risk-weighted assets)	$	145,534	11.3	%	$	102,599	8.0	%	$	128,250	10.0	%
	Tier 1 capital (to risk-weighted assets)		134,529	10.5			51,299	4.0			76,949	6.0
	Tier 1 capital (to average assets)		134,529	7.1			45,414	4.0			94,268	5.0
MainSource Bank of Illinois
	Total capital (to risk-weighted assets)	$	13,998	12.9	%	$	8,656	8.0	%	$	10,820	10.0	%
	Tier 1 capital (to risk-weighted assets)		13,090	12.1			4,328	4.0			6,492	6.0
	Tier 1 capital (to average assets)		13,090	7.3			7,151	4.0			8,939	5.0
MainSource Bank — Ohio
	Total capital (to risk-weighted assets)	$	17,479	13.0	%	$	10,745	8.0	%	$	13,431	10.0	%
	Tier 1 capital (to risk-weighted assets)		16,019	11.9			5,372	4.0			8,059	6.0
	Tier 1 capital (to average assets)		16,019	7.9			8,071	4.0			10,089	5.0

NOTE 19 — EMPLOYEE BENEFIT PLANS

       The Company has a defined-contribution retirement plan in which substantially all employees may participate. The Company matches a portion of employees' contributions and makes additional contributions based on employee compensation and the overall profitability of the Company. Expense was $1,586 in 2007, $1,293 in 2006, and $1,309 in 2005.

       The Company acquired a defined benefit retirement plan upon purchase of an affiliate in 2006. Per the merger agreement, the plan was frozen prior to the merger and an application was filed with the IRS to settle this plan. The Company settled this plan in the first half of 2007.

NOTE 20 — RELATED PARTY TRANSACTIONS

       The Company has entered into transactions with certain directors, executive officers, significant stockholders and their affiliates or associates (related parties).

42

       The aggregate amount of loans, as defined, to such related parties were as follows:

Balances, January 1, 2007	$	18,442
Changes in composition of related parties		(2,456	)
New loans, including renewals and advances		13,099
Payments, including renewals		(12,161	)
Balances, December 31, 2007	$	16,924

       Deposits from related parties held by the Company at December 31, 2007 and 2006 totaled $5,839 and $8,288.

NOTE 21 — STOCK OPTION PLANS

       On January 16, 2007, the Company's Board of Directors adopted and approved the MainSource Financial Group, Inc. 2007 Stock Incentive Plan (the "2007 Stock Incentive Plan") effective upon the approval of the plan by the Company's shareholders, which occurred on April 26, 2007 at the Company's annual meeting of shareholders. The 2007 Stock Incentive Plan provides for the grant of incentive stock options, nonstatutory stock options, stock bonuses and restricted stock awards. Incentive stock options may be granted only to employees. An aggregate of 650,000 shares of common stock are reserved for issuance under the 2007 Stock Incentive Plan. Shares issuable under the 2007 Stock Incentive Plan will be authorized and unissued shares of common stock or treasury shares. The 2007 Stock Incentive Plan is in addition to, and not in replacement of, the 2003 Plan. However, no further awards of options will be made under the 2003 Plan. Unexercised options, which were previously issued under the 2003 Plan, will not be terminated, but will otherwise continue in accordance with the 2003 Plan and the agreements pursuant to which the options were issued.

       The fair value of each option award is estimated on the date of grant using a closed form option valuation (Black-Scholes) model that uses the assumptions noted in the table below. Expected volatilities are based on historical volatilities of the Company's common stock. The Company uses historical data to estimate option exercise and post-vesting termination behavior. Employee and management options are tracked separately. The expected term of options granted is based on historical data and represents the period of time that options granted are expected to be outstanding, which takes into account that the options are not transferable. The risk-free interest rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of the grant.

       The fair value of options granted was determined using the following weighted average assumptions as of grant date.

	2007		2006		2005
Risk-free interest rate	4.67	%	4.56	%	4.08	%
Expected term (years)	6.80		6.82		6.83
Expected stock price volatility	19.72	%	21.11	%	21.64	%
Dividend yield	3.00	%	2.78	%	2.50	%

       A summary of the activity in the stock option plan for 2007 follows:

Options (restated for stock dividends and splits)	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value
Outstanding, beginning of year	263,345		$	17.93
Granted	75,055			17.01
Exercised	(30,863	)		11.29
Forfeited or expired	(31,700	)		21.01
Outstanding at end of year	275,837		$	18.07	7.3	109
Exercisable at year end	190,681		$	18.40	6.6	109

       Information related to the stock option plan during each year follows:

	2007		2006		2005
Intrinsic value of options exercised	$	180	$	314	$	17
Cash received from option exercises		348		246		43
Tax benefit realized from option exercises		—		—		5
Weighted average (per share) fair value of options granted		3.47		3.97		4.58

       As of December 31, 2007, there was $271 of total unrecognized compensation cost related to nonvested stock options granted under the Plan. The cost is expected to be recognized over a weighted-average period of 1.6 years.

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NOTE 22 — EARNINGS PER SHARE

       Earnings per share were computed as follows:

Year Ended December 31, 2007	Net Income		Weighted Average Shares	Per Share Amount
Basic Earnings Per Share
Net income available to common shareholders	$	21,870	18,691,094	$	1.17
Effect of dilutive stock options			9,181
Diluted Earnings Per Share
Net income available to common shareholders and assumed conversions	$	21,870	18,700,275	$	1.17
Year Ended December 31, 2006
Basic Earnings Per Share
Net income available to common shareholders	$	22,241	17,174,478	$	1.30
Effect of dilutive stock options			13,763
Diluted Earnings Per Share
Net income available to common shareholders and assumed conversions	$	22,241	17,188,241	$	1.29
Year Ended December 31, 2005
Basic Earnings Per Share
Net income available to common shareholders	$	16,192	13,177,462	$	1.23
Effect of dilutive stock options			14,171
Diluted Earnings Per Share
Net income available to common shareholders and assumed conversions	$	16,192	13,191,633	$	1.23

       Stock options for 226,350, 182,995, and 129,964 shares of common stock were not considered in computing diluted earnings per common share for 2007, 2006 and 2005 because they were antidilutive.

NOTE 23 — FAIR VALUES OF FINANCIAL INSTRUMENTS

December 31		2007						2006
		Carrying Amount			Fair Value			Carrying Amount			Fair Value
Assets
Cash and cash equivalents		$	84,655		$	84,655		$	104,155		$	104,155
Interest-bearing time deposits			116			116			116			116
Securities available for sale			489,739			489,739			485,259			485,259
Loans including loans held for sale, net			1,681,786			1,714,002			1,563,754			1,582,951
Restricted stock			22,947			22,947			22,947			22,947
Interest receivable			11,814			11,814			12,364			12,364
Liabilities
Deposits			(1,901,829	)		(1,866,713	)		(1,859,689	)		(1,801,452	)
Borrowings
	Other		(50,156	)		(50,156	)		(42,306	)		(42,306	)
	FHLB advances		(257,099	)		(256,465	)		(208,443	)		(200,609	)
Interest payable			(8,980	)		(8,980	)		(8,032	)		(8,032	)
Subordinated debentures			(41,239	)		(38,125	)		(41,239	)		(41,473	)

       The methods and assumptions used to estimate fair value are described as follows.

       Carrying amount is the estimated fair value of cash and cash equivalents, interest-bearing time deposits, restricted stock, accrued interest receivable and payable, demand and all other transactional deposits, short-term borrowings, variable rate notes

44

payable, and variable rate loans or deposits that reprice frequently and fully. Security fair values are based on market prices or dealer quotes, and if no such information is available, on the rate and term of the security and information about the issuer. For fixed rate loans or deposits and for variable rate loans or deposits with infrequent repricing or repricing limits, fair value is based on discounted cash flows using current market rates applied to the estimated life and credit risk. Fair values for impaired loans are estimated using discounted cash flow analysis or underlying collateral values. Fair value of loans held for sale is based on market quotes. Fair value of FHLB advances and subordinated debentures is based on current rates for similar financing. The fair value of off-balance-sheet items is based on the current fees or cost that would be charged to enter into or terminate such arrangements, and are not considered significant.

NOTE 24 — QUARTERLY FINANCIAL DATA (UNAUDITED)

							Earnings per Share
	Interest Income		Net Interest Income
					Net Income		Basic		Fully Diluted
2007
First quarter	$	35,100	$	18,607	$	5,415	$	0.29	$	0.29
Second quarter		36,061		18,750		6,003		0.32		0.32
Third quarter		36,783		18,246		5,603		0.30		0.30
Fourth quarter		36,883		18,794		4,849		0.26		0.26
2006
First quarter	$	22,655	$	14,234	$	4,786	$	0.33	$	0.33
Second quarter		28,582		16,408		5,482		0.33		0.33
Third quarter		34,431		18,825		5,934		0.32		0.31
Fourth quarter		35,063		18,801		6,039		0.32		0.32

NOTE 25 — PARENT ONLY CONDENSED FINANCIAL STATEMENTS

Parent Only Condensed Balance Sheets

December 31			2007		2006
Assets
	Cash and cash equivalents		$	549	$	1,666
	Securities available for sale			1,026		1,106
	Investment in subsidiaries			314,924		300,626
	Other assets			5,265		6,620
		Total assets	$	321,764	$	310,018
Liabilities
	Subordinated debentures		$	41,239	$	41,239
	Other borrowings			13,000		13,000
	Other liabilities			3,423		2,532
		Total liabilities		57,662		56,771
Shareholders' equity				264,102		253,247
		Total liabilities and shareholders' equity	$	321,764	$	310,018

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Parent Only Condensed Statements of Income

Year Ended December 31			2007			2006			2005
Income
	Dividends from subsidiaries		$	18,120		$	37,785		$	27,797
	Fees from subsidiaries			11,490			10,811			10,345
	Other Income			112			959			132
		Total income		29,722			49,555			38,274
Expenses
	Interest expense			4,008			3,150			2,192
	Salaries and benefits			7,136			6,601			6,115
	Professional fees			1,050			934			932
	Other expenses			7,423			6,696			5,805
		Total expenses		19,617			17,381			15,044
Income before income taxes and equity in undistributed income of subsidiaries				10,105			32,174			23,230
	Income tax expense (benefit)			(3,166	)		(2,441	)		(1,980	)
Income before equity in undistributed income of subsidiaries				13,271			34,615			25,210
Equity in undistributed income of subsidiaries				8,599			(12,374	)		(9,018	)
Net income			$	21,870		$	22,241		$	16,192

Parent Only Condensed Statements of Cash Flows

Year Ended December 31			2007			2006			2005
Operating Activities
	Net income		$	21,870		$	22,241		$	16,192
	Undistributed income of subsidiaries			(8,599	)		12,374			9,018
	Changes in other assets and liabilities			2,431			1,961			1,172
		Net cash provided by operating activities		15,702			36,576			26,382
Investing Activities
	Capital contributed to subsidiary			(2,935	)		(6,408	)		(735	)
	Cash paid for acquisitions			—			(51,873	)		(30,267	)
	Purchases of equipment			(433	)		(1,184	)		(1,777	)
	Proceeds from sales of securities available for sale			—			2,112			—
	Purchase of securities available for sale			—			(26	)		—
		Net cash used by investing activities		(3,368	)		(57,379	)		(32,779	)
Financing Activities
	Payments on note payable			—			—			(9,100	)
	Proceeds from issuance of subordinated debentures			—			11,000			—
	Net change in other borrowings			—			13,000			(3,000	)
	Purchase of treasury shares			(3,407	)		(2,290	)		(27	)
	Proceeds from exercise of stock options			348			246			48
	Proceeds from stock issuance			—			—			32,660
	Cash dividends and fractional shares			(10,392	)		(8,944	)		(6,514	)
		Net cash provided (used) by financing activities		(13,451	)		13,012			14,067
Net change in cash and cash equivalents				(1,117	)		(7,791	)		7,670
Cash and cash equivalents, beginning of year				1,666			9,457			1,787
Cash and cash equivalents, end of year			$	549		$	1,666		$	9,457

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NOTE 26 — SUBSEQUENT EVENT

       On February 26, 2008, MainSource entered into a definitive agreement to acquire 1^st Independence Financial Group, Inc. a Delaware corporation ("1^st Independence"), and 1^st Independence Bank, Inc, a Kentucky chartered commercial bank and a wholly owned subsidiary of 1^st Independence. The agreement provides that shareholders of 1^st Independence will receive cash in the amount of $5.475 per share and .881036 shares of MainSource common stock for each share of 1^st Independence owned by them. The transaction value is estimated at $37 million. MainSource expects to issue approximately 1.76 million shares of its common stock in the transaction. The transaction, which is expected to close in the third quarter of 2008, is subject to various regulatory approvals and the approval of 1^st Independence shareholders.

47

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

       In connection with its audits for the three most recent fiscal years ended December 31, 2007, there have been no disagreements with the Company's independent registered public accounting firm on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure.

ITEM 9A.    CONTROLS & PROCEDURES

Disclosure Controls and Procedures

       As of the end of the period covered by this report, an evaluation was carried out under the supervision and with the participation of the Company's management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based on their evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that the Company's disclosure controls and procedures are, to the best of their knowledge, effective to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms as of such date.

       Our management has evaluated our internal control over financial reporting and there were no changes in our internal control over financial reporting that occurred during the most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

Management's Report on Internal Control Over Financial Reporting

       MainSource Financial Group, Inc. (the "Corporation") is responsible for the preparation, integrity, and fair presentation of the consolidated financial statements included in this annual report. The consolidated financial statements and notes included in this annual report have been prepared in conformity with United States generally accepted accounting principles and necessarily include some amounts that are based on management's best estimates and judgments.

       We, as management of MainSource Financial Group Inc., are responsible for establishing and maintaining effective internal control over financial reporting that is designed to produce reliable financial statements in conformity with Untied States generally accepted accounting principles. The system of internal control over financial reporting as it relates to the financial statements is evaluated for effectiveness by management and tested for reliability through a program of internal audits and other management testing. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

       Management assessed the Corporation's system of internal control over financial reporting as of December 31, 2007, in relation to criteria for effective internal control over financial reporting as described in "Internal Control — Integrated Framework" issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management concludes that as of December 31, 2007, its system of internal controls over financial reporting is effective and meets the criteria of the "Internal Control — Integrated Framework". Crowe Chizek and Company LLC, independent registered public accounting firm, has issued an attestation report dated March 12, 2008 on the Corporation's internal control over financial reporting. This report is incorporated by reference in Item 8 above, under the heading "Report of Independent Registered Public Accounting Firm".

Robert E. Hoptry
President and Chief Executive Officer

James M. Anderson
Senior Vice President and Chief Financial Officer

ITEM 9B.    OTHER INFORMATION

       None

48

PART IV

ITEM 15    EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)(1) Financial Statements.

       Financial Statements filed as part of this Form 10-K are included under Part II, Item 8, above.

(a)(2) Financial statement schedules

       All schedules are omitted because they are not applicable or not required, or because the required information is included in the consolidated financial statements or related notes in Part II, Item 8 above.

(a)(3) Exhibits:

       2.1     Agreement and Plan of Merger, dated February 26, 2008, among MainSource Financial Group, Inc., 1^st Independence Financial Group, Inc., and 1^st Independence Bank, Inc. (incorporated by reference to Exhibit 2.1 to the Report on Form 8-K of the registrant filed February 27, 2008 with the commission (Commission File No. 0-12422)).

       3.1     Restated Articles of Incorporation (incorporated by reference to Exhibit 3.1 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2003 filed March 12, 2004 with the Commission (Commission File No. 0-12422)).

       3.2     Bylaws of MainSource Financial Group, Inc. dated July 17, 2007 (incorporated by reference to Exhibit 3.1 to the Report on Form 8-K of the registrant filed July 25, 2007 with the Commission (Commission File No. 0-12422)).

       4.1     Indenture dated as of December 19, 2002 between the Registrant, as issuer, and State Street Bank and Trust Company of Connecticut, N.A., as trustee, re: floating rate junior subordinated deferrable interest debentures due 2032 (incorporated by reference to Exhibit 4.6 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2002 filed March 28, 2003 with the Commission (Commission File No. 0-12422)).

       4.2     Amended and Restated Declaration of Trust dated as of December 19, 2002 among State Street Bank and Trust Company of Connecticut, N.A., as institutional trustee, the Registrant, as sponsor, and James L. Saner Sr., Donald A. Benziger and James M. Anderson, as administrators (incorporated by reference to Exhibit 4.7 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2002 filed March 28, 2003 with the Commission (Commission File No. 0-12422)).

       4.3     Guarantee Agreement dated as of December 19, 2002 between the Registrant, and State Street Bank and Trust Company of Connecticut, N.A (incorporated by reference to Exhibit 4.8 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2002 filed March 28, 2003 with the Commission (Commission File No. 0-12422)).

       4.4     Indenture dated as of April 1, 2003 between the Registrant, as issuer, and U.S. Bank, N.A., as trustee, re: floating rate junior subordinated deferrable interest debentures due 2033 (incorporated by reference to Exhibit 4.1 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.5     Amended and Restated Declaration of Trust dated as of April 1, 2003 among U.S. Bank, N.A., as institutional trustee, the Registrant, as sponsor, and James L. Saner Sr., Donald A. Benziger and James M. Anderson, as administrators (incorporated by reference to Exhibit 4.2 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.6     Guarantee Agreement dated as of April 1, 2003 between the Registrant, and U.S. Bank, N.A (incorporated by reference to Exhibit 4.3 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.7     Indenture dated as of June 12, 2003 between the Registrant, as issuer, and The Bank of New York, as trustee, re: rate junior subordinated deferrable interest debentures due (incorporated by reference to Exhibit 4.4 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.8     Amended and Restated Declaration of Trust dated as of June 12, 2003 among The Bank of New York, as institutional trustee, the Registrant, as sponsor, and James L. Saner Sr., Donald A. Benziger and James M. Anderson, as administrators (incorporated by reference to Exhibit 4.5 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.9     Guarantee Agreement dated as of June 12, 2003 between the Registrant, and The Bank of New York (incorporated by reference to Exhibit 4.6 to the Quarterly Report on Form 10-Q of the registrant for the quarter ended June 30, 2003 filed August 14, 2003 with the Commission (Commission File No. 0-12422)).

       4.10   Form of Amended and Restated Declaration of Trust dated as of October 13, 2006, of MainSource Statutory Trust IV, among MainSource Financial Group, Inc. as sponsor, Wells Fargo Delaware Trust Company as Delaware trustee and Wells Fargo

49

Bank, National Association, as institutional trustee (incorporated by reference to Exhibit 10.1 to the periodic report on Form 8-K of the registrant filed October 17, 2006 with the Commission (Commission File No. 0-12422)).

       4.11   Form of Indenture dated as of October 13, 2006, between MainSource Financial Group, Inc. and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 10.2 to the periodic report on Form 8-K of the registrant filed October 17, 2006 with the Commission (Commission File No. 0-12422)).

       4.12   Form of Guarantee Agreement dated as of October 13, 2006, between MainSource Financial Group, Inc., as guarantor, and Wells Fargo Bank, National Association, as guarantee trustee (incorporated by reference to Exhibit 10.3 to the periodic report on Form 8-K of the registrant filed October 17, 2006 with the Commission (Commission File No. 0-12422)).

       10.1   Registrant's 2003 Stock Option Plan (incorporated by reference to Exhibit 10.1 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2003 filed March 12, 2004 with the Commission (Commission File No. 0-12422)).*

       10.2   Form of Stock Option Agreement Under 2003 Stock Option Plan for Directors of Registrant dated May 19, 2003 (incorporated by reference to Exhibit 10.2 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2003 filed March 12, 2004 with the Commission (Commission File No. 0-12422)).*

       10.3   Form of Stock Option Agreement Under 2003 Stock Option Plan for Officers of Registrant (incorporated by reference to Exhibit 10.1 to the Report on Form 8-K of the registrant filed February 24, 2005 with the Commission (Commission File No. 0-12422)).*

       10.4   Form of Executive Severance Agreement dated January 16, 2001 between the Registrant and James L. Saner, Sr. (incorporated by reference to Exhibit 10.2 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2000 filed March 30, 2001 with the Commission (Commission File No. 0-12422)).*

       10.5   Form of Executive Severance Agreement dated January 16, 2001 between the Registrant and John C. Parker (incorporated by reference to Exhibit 10.4 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2002 filed March 28, 2003 with the Commission (Commission File No. 0-12422)).*

       10.6   Form of Executive Severance Agreement dated January 16, 2001 between Registrant and Daryl R. Tressler (incorporated by reference to Exhibit 10.6 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2006 filed March 14, 2007 with the Commission (Commission File No. 0-12422)).*

       10.7   Form of Change-In-Control Agreement dated February 20, 2007 to be effective January 1, 2006, between Registrant and James M. Anderson (incorporated by reference to Exhibit 10.7 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2006 filed March 14, 2007 with the Commission (Commission File No. 0-12422)).*

       10.8   Form of Indemnification Agreement for Directors and Certain Officers of Registrant (incorporated by reference to Exhibit 10.1 to the Report on Form 8-K of the registrant filed February 24, 2005 with the Commission (Commission File No. 0-12422)).

       10.9   Registrant's 2007 Stock Incentive Plan.*

       14      Code of Ethical Conduct (incorporated by reference to Exhibit 14 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2003 filed March 12, 2004 with the Commission (Commission File No. 0-12422)).

       21      List of subsidiaries of the Registrant.

       23.1   Consent of Crowe Chizek and Company LLC

       31.1   Certification pursuant to Section 302 of Sarbanes-Oxley Act of 2002 by Chief Executive Officer

       31.2   Certification pursuant to Section 302 of Sarbanes-Oxley Act of 2002 by Chief Financial Officer

       The following exhibits accompany this periodic report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (the "2002 Act"). These exhibits shall be deemed only to accompany this periodic report and are not part of this periodic report, shall not be deemed filed for purposes of the Securities Exchange Act of 1934, and may not be for any purpose other than compliance with the 2002 Act.

       32.1   Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Chief Executive Officer

       32.2   Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Chief Financial Officer

*

A management contract or compensatory plan or agreement.

(b)

Exhibits

       Reference is made to Item 15(a)(3) above.

(c)

Schedules

       None required

50

       Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on the 14th day of March, 2008.

MAINSOURCE FINANCIAL GROUP, INC.

/s/ Robert E. Hoptry President and Chief Executive Officer

       Pursuant to the requirements of the Securities Exchange Act of 1934, this report on Form 10-K has been signed by the following persons on behalf of the registrant and in the capacities with the Company and on the dates indicated.

Signature		Capacity	Date
/s/	William G. Barron
	William G. Barron	Director	March 14, 2008
/s/	Brian J. Crall
	Brian J. Crall	Director	March 14, 2008
/s/	Douglas I. Kunkel
	Douglas I. Kunkel	Director	March 14, 2008
/s/	Philip A. Frantz
	Philip A. Frantz	Director	March 14, 2008
/s/	Rick S. Hartman
	Rick S. Hartman	Director	March 14, 2008
/s/	D.J. Hines
	D.J. Hines	Director	March 14, 2008
/s/	Robert E. Hoptry
	Robert E. Hoptry	Director Chairman of the Board President & Chief Executive Officer	March 14, 2008
/s/	James M. Anderson
	James M. Anderson	Senior Vice President & Chief Financial Officer	March 14, 2008

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QuickLinks

TABLE OF CONTENTS
PART I.

ITEM 1. BUSINESS (Dollars in thousands except per share data)
ITEM 1A. RISK FACTORS
ITEM 1B. UNRESOLVED STAFF COMMENTS.
ITEM 2. PROPERTIES
ITEM 3. LEGAL PROCEEDINGS
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

PART II

ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER'S PURCHASES OF EQUITY SECURITIES

ITEM 6. SELECTED FINANCIAL DATA

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

CONSOLIDATED BALANCE SHEETS
CONSOLIDATED STATEMENTS OF INCOME YEARS ENDED DECEMBER 31, 2007, 2006, AND 2005
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
CONSOLIDATED STATEMENTS OF CASH FLOW
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
ITEM 9A. CONTROLS & PROCEDURES
ITEM 9B. OTHER INFORMATION

PART IV

ITEM 15 EXHIBITS, FINANCIAL STATEMENT SCHEDULES

EX-10.9

EXHIBIT 10.9

MAINSOURCE FINANCIAL GROUP, INC.
2007 STOCK INCENTIVE PLAN

ARTICLE I

Purpose

The primary purposes of the MainSource Financial Group, Inc. 2007 Stock Incentive Plan (the “Plan”) are to promote and align the interests of key employees, officers, directors, consultants, advisors and other service providers of the Company and its Affiliates in order to reward performance that enhances long term shareholder value, increases employee stock ownership and improves the ability of the Company and its Affiliates to attract, retain and motivate their key employees, officers, directors, consultants, advisors and other service providers.

Similar purposes were the motivation behind the Company’s prior establishment of the 2003 Stock Option Plan, which is in addition to, and not replaced by, this 2007 Stock Incentive Plan. At the same time as the adoption of this Plan, no further awards will be made under the 2003 Stock Option Plan. However, unexercised options, which were previously issued under the 2003 Stock Option Plan, will not be terminated, but will otherwise be continued in accordance with the 2003 Stock Option Plan, as it may be amended from time to time in accordance with its terms and conditions.

In furtherance of the foregoing expressed purposes, this Plan is intended to provide a means by which eligible recipients of Stock Awards may be given an opportunity to benefit from increases in value of the Company Stock through the granting of the following Stock Awards:  (a) Option Awards; (b) Bonus Stock Awards; and (c) Restricted Stock Awards.

ARTICLE II

Definitions

As used in this Plan, terms defined parenthetically immediately after their use have the meanings provided by such definitions, and the terms set forth below have the following meanings (such meanings to apply equally to both the singular and plural forms of the terms defined):

(a)“Administrator” means the Board, the Compensation Committee of the Board or any committee of the Board  comprised solely of directors who both are (i) “Non-employee Directors” under Rule 16b-3, and (ii) “outside directors” as described in Treasury Regulation Section 1.162-27(e)(3).

(b)“Affiliate” means (i) any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company if, at the time of the granting of a Stock Award under the Plan, each of the corporations other than the last corporation in the unbroken chain owns stock possessing 50 percent or more of the total combined voting power of all classes of stock in one of the other corporations in such chain, and (ii) any other organization in which the Company has a substantial equity investment, as designated by the Board.

(c)“Award Agreement” means the written agreement which sets forth the terms and provisions applicable to each Option Award, Restricted Stock Award and/or Bonus Stock Award.

(d)“Board” means the Board of Directors of the Company.

(e)“Bonus Stock Award” is a grant of shares of Company Stock in return for previously performed services, or in return for a Grantee surrendering other compensation that may be due.

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(f)“Change in Control” means the occurrence of any one of the following events:

(i)individuals who, on January 1, 2007, constitute the Board (the “Incumbent Directors”) cease for any reason to constitute at least a majority of the Board, provided that any person becoming a director subsequent to January 1, 2007, whose election or nomination for election was approved by a vote of at least two-thirds of the Incumbent Directors then on the Board (either by a specific vote or by approval of the proxy statement of the Company in which such person is named as a nominee for director, without written objection by such Incumbent Directors to such nomination) shall be deemed to be an Incumbent Director; provided, however, that no individual elected or nominated as a director of the Company initially as a result of an actual or threatened election contest with respect to directors or any other actual or threatened solicitation of proxies by or on behalf of any person other than the Board shall be deemed to be an Incumbent Director;

(ii)any “person” (as such term is defined in Section 3(a)(9) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and as used in Sections 13(d)(3) and 14(d)(2) of the Exchange Act) is or becomes a “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 25% or more of the combined voting power of the Company’s then outstanding securities eligible to vote for the election of the Board (the “Company Voting Securities”); provided, however, that the event described in this paragraph (ii) shall not be deemed to be a Change in Control by virtue of any of the following acquisitions: (A) by the Company or any subsidiary, (B) by any employee benefit plan sponsored or maintained by the Company or any subsidiary, or by any employee stock benefit trust created by the Company or any subsidiary, (C) by any underwriter temporarily holding securities pursuant to an offering of such securities, (D) pursuant to a Non-Qualifying Transaction (as defined in paragraph (iii)), (E) pursuant to any acquisition by any group of persons (or any entity controlled by any group of persons); or (F) a transaction (other than one described in (iii) below) in which Company Voting Securities are acquired from the Company, if a majority of the Incumbent Directors approves a resolution providing expressly that the acquisition pursuant to this clause (F) does not constitute a Change in Control under this paragraph (ii);

(iii)the consummation of a merger, consolidation, share exchange or similar form of corporate transaction involving the Company or any of its Subsidiaries that requires the approval of the Company’s shareholders, whether for such transaction or the issuance of securities in the transaction (a “Business Combination”), unless immediately following such Business Combination: (A) more than 40% of the total voting power of (x) the corporation resulting from the consummation of such Business Combination (the “Surviving Corporation”) or (y) if applicable, the ultimate parent corporation that directly or indirectly has beneficial ownership of 100% of the voting securities eligible to elect directors of the Surviving Corporation (the “Parent Corporation”), is represented by Company Voting Securities that were outstanding immediately prior to such Business Combination (or, if applicable, represented by shares into which such Company Voting Securities were converted pursuant to such Business Combination), and such voting power among the holders thereof is in substantially the same proportion as the voting power of such Company Voting Securities among the holders thereof immediately prior to the Business Combination, (B) no person (other than any employee benefit plan sponsored or maintained by the Surviving Corporation or the Parent Corporation or any employee stock benefit trust created by the Surviving Corporation or the Parent Corporation) is or becomes the beneficial owner, directly or indirectly, of 25% or more of the total voting power of the outstanding voting securities eligible to elect directors of the Parent Corporation (or, if there is no Parent

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Corporation, the Surviving Corporation) and (C) at least one-half of the members of the board of directors of the Parent Corporation (or, if there is no Parent Corporation, the Surviving Corporation) were Incumbent Directors at the time of the Board’s approval of the execution of the initial agreement providing for such Business Combination (any Business Combination which satisfies all of the criteria specified in (A), (B) and (C) above shall be deemed to be a “Non-Qualifying Transaction”); or

(iv)the shareholders of the Company approve a plan of complete liquidation or dissolution of the Company or a sale of all or substantially all of the Company’s assets.

Notwithstanding the foregoing, a Change in Control of the Company shall not be deemed to occur solely because any person acquires beneficial ownership of more than 25% of the Company Voting Securities as a result of the acquisition of Company Voting Securities by the Company that reduces the number of Company Voting Securities outstanding; provided, that if after such acquisition by the Company such person becomes the beneficial owner of additional Company Voting Securities that increases the percentage of outstanding Company Voting Securities beneficially owned by such person, a Change in Control of the Company shall then occur.

(g)“Code” means the Internal Revenue Code of 1986, as amended, and regulations and rulings thereunder. References to a particular Section of the Internal Revenue Code will include references to successor provisions.

(h)“Company” means MainSource Financial Group, Inc., an Indiana corporation.

(i)“Company Stock” means the common stock of the Company.

(j)“Current Grant” has the meaning specified in Section 7.1(c).

(k)“Effective Date” means January 1, 2007.

(l)“Exchange Act” means the Securities Exchange Act of 1934, as amended. References to a particular section of, or rule under, the Exchange Act will include references to successor provisions.

(m)“Exercise Price” means the price at which a share of Company Stock may be purchased by a Grantee pursuant to exercise of an Option Award.

(n)“Fair Market Value” of any security of the Company or any other issuer means, as of any applicable date:

(i)The per share closing price of a share of the Company Stock on the National Association of Securities Dealers, Inc.’s NASDAQ National Market System (“NASDAQ”) on the day preceding the day such grant determination is being made or, if there was no closing price reported on such day, on the most recently preceding day on which a closing price was reported; or

(ii)If a security is not so listed, the Fair Market Value of a share of Company Stock will be determined by a reasonable application of a reasonable valuation method taking into consideration such factors as the value of the Company’s tangible and intangible assets, the present value of the Company’s future cash flows, the market value of stock of equity interests in similar corporations and other entities engaged in trades or businesses substantially similar to those engaged in by the Company, the value of which can be readily determined through objective means and other relevant factors such as control premiums or discounts for lack of marketability and whether the valuation method is used for other purposes that have a material economic effect on the Company, its shareholders or its creditors.

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(o)“Grant Date” means the date of grant of a Stock Award determined in accordance with Section 6.1(a).

(p)“Grantee” means an individual who has been granted a Stock Award.

(q)“ISO” means an Option Award which meets the requirements of Code Section 422.

(r)“Non-employee Director” means any individual who is a member of the Board and who is not an employee of the Company.

(s)“Nonqualified Stock Option” means an Option Award that does not meet the requirements of Code Section 422.

(t)“Option Award” means the grant of a stock option under the Plan.

(u)“Other Plans” has the meaning specified in subsection Section 7.1(b)

(v)“Plan” means the MainSource Financial Group, Inc. 2007 Stock Incentive Plan.

(w)“Prior Grants” has the meaning specified in subsection Section 7.1(c).

(x)“Restricted Stock Award” is a grant of shares of Company Stock that are subject to a risk of forfeiture or other restrictions that will lapse upon the achievement of one or more goals, performance goals or other objectives, as determined by the Board.

(y)“Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act, and any future rule or regulation amending, supplementing or superseding such rule.

(z)“SEC” means the Securities and Exchange Commission.

(aa)“Securities Act” means the Securities Act of 1933, as amended. References to a particular section of, or rule under the Securities Act will include references to successor provisions.

(bb)“Stock Award” means an Option Award, Bonus Stock Award or Restricted Stock Award, or all or any combination of them.

(cc)“Ten Percent Owner” means a person who owns stock (including stock treated as owned under Code Section 424(d)) possessing more than ten percent of the total combined voting power of all classes of stock of the Company.

(dd)“Termination of Employment” occurs the first day an individual, for any reason, is entitled to severance payments under the Company’s or any Affiliate’s personnel policies or is no longer employed by the Company or any of its Affiliates, or, with respect to an individual who is an employee of an Affiliate, the first day such corporation is no longer an Affiliate. For the purposes of this Plan, the death of an individual will not constitute a Termination of Employment.

(ee)“Termination of Employment for Cause” means a Termination of Employment following the occurrence of any of the following events:

(i)       Grantee commits fraud, theft or embezzlement against the Company or an Affiliate;

(ii)      Grantee commits a felony or a crime involving moral turpitude;

(iii)     Grantee compromises trade secrets or other proprietary information of the Company or an Affiliate; or

(iv)     Grantee breaches any non-solicitation agreement or noncompetition agreement with the Employer.

(ff)     “$100,000 Limit” has the meaning specified in subsection Section 7.1(b).

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ARTICLE III

Scope

Section 3.1  Reservation of Shares.

(a)An aggregate of 650,000 shares of Company Stock is hereby made available and is reserved for delivery in connection with the Plan. This is the maximum number of shares of Company Stock that may be subject to Stock Awards awarded under the Plan. Subject to the foregoing limit, shares of Company Stock held as treasury shares may be used for or in connection with Stock Awards. Issuance of Company Stock pursuant to a Stock Award reduces the shares available for grant and issuance under the Plan.

(b)If and to the extent a Stock Award expires or terminates for any reason without having been exercised in full or is forfeited, shares of Company Stock associated with such Stock Award will again become available for other Stock Awards.

ARTICLE IV

Administration

The Plan will be administered by the Administrator who will have full power and final authority, in its sole discretion, but subject to the express provisions of the Plan, as follows:

(a)To grant Stock Awards;

(b)To determine when Stock Awards may be granted;

(c)To interpret the Plan and to make all determinations necessary or advisable for the administration of the Plan;

(d)To prescribe, amend and rescind rules relating to the Plan, including rules with respect to the exercisability of Stock Awards upon the Termination of Employment of a Grantee;

(e)To determine the terms and provisions of Award Agreements and, with the consent of the Grantee, to modify any such Award Agreement at any time;

(f)To accelerate the exercisability of, and to accelerate or waive any or all of the restrictions and conditions applicable to any Stock Award; or

(g)To impose such additional conditions, restrictions and limitations upon the grant, exercise or retention of Stock Awards as the Administrator may, before or concurrently with the grant thereof, deem appropriate.

Any decision made by the Administrator or any action which the Administrator is required or authorized to take will, to the extent permitted by applicable law, be final, conclusive, and binding upon each and every person who is or may become interested in the Plan, any Award Agreement or any Stock Award. The Administrator will not be liable for any action or determination made in good faith with respect to the Plan or any Stock Award.

ARTICLE V

Eligibility

Section 5.1  In General.  Except as otherwise provided herein, Stock Awards may be granted to any employee, director or officer of the Company or any Affiliate, or to any consultant or advisor to the Company provided that if such consultant or advisor is employed by or providing services to the Company

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or a Affiliate at the time of the grant). Notwithstanding the foregoing, but otherwise subject to Code Section 422, only employees of the Company or an Affiliate may be granted ISOs.

Section 5.2  Acquired Employees.  To the extent not otherwise precluded in the Plan or in any other agreement, Stock Awards may be granted under this Plan in substitution for awards held by employees of an organization or business acquired, in any manner, by the Company or an Affiliate. The terms, provisions and benefits of any substitute Stock Awards will be determined by the Board.

ARTICLE VI

Conditions to Grants

Section 6.1  General Conditions.

(a)The “Grant Date” of a Stock Award is the date on which the Administrator grants the Stock Award or such later date as specified in advance by the Administrator.

(b)The term of each Stock Award subject to Section 7.1(a) with respect to ISOs will be a period of not more than ten years from the Grant Date and will be subject to earlier termination as herein provided.

Section 6.2  Exercise Price.  The Exercise Price of any Option Award or Restricted Stock Award, if any, will be equal to the Fair Market Value of Company Stock as of the Grant Date.

Section 6.3  Cash Settlement.  To the extent provided by the Administrator, any Stock Award may be settled in cash rather than Company Stock. To the extent any shares of Company Stock covered by a Stock Award are not delivered to a Grantee because the Stock Award is forfeited, such shares will not be deemed to have been delivered for purposes of determining the maximum number of shares of Company Stock available for delivery under the Plan.

ARTICLE VII

Option Awards

Section 7.1  Incentive Stock Options.  If, at the time of the grant of any Option Award to an employee of the Company or a Affiliate, the Exercise Price is, in the case of a Ten Percent Owner, not less than 110 percent of the Fair Market Value of the Company Stock on the Grant Date, then the Administrator may, but need not, designate that such Option Award will be made subject to additional restrictions to permit it to qualify as an ISO. Any Option Award designated as an ISO:

(a)      Will be for a period of not more than ten years (five years, in the case of a Ten Percent Owner) from the Grant Date, and will be subject to earlier termination as provided herein or in the applicable Award Agreement;

(b)      Will not, when aggregated with all other ISOs (granted under the Plan or any other stock option plan of the Company or an Affiliate (“Other Plans”)) granted to any specific Grantee and exercisable for the first time during any calendar year, have an aggregate Fair Market Value (determined with respect to the underlying capital stock on each ISO’s grant date and otherwise in accordance with Code Section 422) in excess of $100,000 (the “$100,000 Limit”);

(c)      Will, if the aggregate Fair Market Value on the date of grant of the underlying capital stock with respect to such grant (the “Current Grant”) and all prior ISO grants under the Plan and Other Plans (“Prior Grants”) which are exercisable for the first time during any calendar year would exceed the $100,000 Limit, be exercisable as follows:

(i)       The portion of the Current Grant exercisable for the first time by a specific Grantee during a calendar year which causes all relevant grants to the Grantee to exceed the

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$100,000 Limit for such calendar year will, notwithstanding the terms of the Current Grant, be exercisable for the first time by the Grantee in the first subsequent calendar year or years in which it could be exercisable for the first time by the Grantee without exceeding the $100,000 Limit for such subsequent calendar year; and

(ii)      If, viewed as of the date of the Current Grant, any portion of a Current Grant could not be exercised under subsection (i) above during any calendar year commencing with the calendar year in which it is first exercisable through and including the last calendar year in which it may by its terms be exercised, such portion of the Current Grant will not be an ISO, but will be exercisable as a separate Option Award at such date or dates as are provided in the Current Grant;

(d)      will be granted within ten years after the earlier of the date the Plan is adopted by the Board or the date the Plan is approved by the shareholders of the Company; and

(e)      will require the Grantee to notify the Administrator of any disposition of any Company Stock issued pursuant to the exercise of the ISO under the circumstances described in Code Section 421(b) (relating to certain disqualifying dispositions), within ten days of such disposition.

Section 7.2  Nonqualified Stock Options.  Any Option Award that does not meet the requirements of Code Section 422 will be a Nonqualified Stock Option, which will be in such form and will contain such terms and conditions as the Administrator will appropriate; provided, however, the Exercise Price will not be less than 100 percent of the underlying Company Stock’s Fair Market Value on the Grant Date.

Section 7.3  Termination of Employment.

(a)Unless otherwise determined by the Administrator and specified in the applicable Award Agreement, any Option Award that has not vested as of the date of Termination of Employment will terminate immediately as of the date of Termination of Employment.

(b)Upon a Change in Control, any Option Award will be immediately vested and immediately exercisable.

(c)Any vested, unexercised Option Award will terminate automatically and without further notice on the earliest of the following dates, but otherwise subject to the expiration date set forth in the Award Agreement:

(i)One year after the Grantee’s death;

(ii)One year after the Grantee’s Termination of Employment arising from a permanent and total disability, within the meaning of Code Section 22(e)(3);

(iii)Immediately if the Termination of Employment is based upon Cause; and

(iv)90 days after Termination of Employment for any reason other than disability or Cause as provided in this Section.

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ARTICLE VIII

Bonus Stock and Restricted Stock Awards

Section 8.1  Bonus Stock Awards.Each Award Agreement relating to a Bonus Stock Award will be in such form and will contain such terms and conditions as the Administrator will deem appropriate. Each Bonus Stock Award Agreement will include (through the incorporation of these provisions by reference or otherwise) the substance of each of the following provisions:

(a)Consideration.   A Bonus Stock Award may be made in consideration for past services actually rendered to the Company or any Affiliate for its benefit.

(b)Vesting.   Shares of Company Stock awarded under a Bonus Stock Award Agreement may, but need not, be subject to vesting, as determined by the Administrator and specified in the applicable Award Agreement. Upon a Change in Control, any Bonus Stock Award, to the extent subject to vesting, will be immediately vested.

(c)Termination of Employment.   Upon a Grantee’s Termination of Employment, the Company may reacquire any or all of the shares of Company Stock held by the Grantee which have not yet vested as of the date of the Termination of Employment under the terms of the Bonus Stock Award Agreement. If as of the Termination of Employment the restrictions applicable to a Bonus Stock Award, if any, have not been satisfied, the Bonus Stock Award will be forfeited and the underlying shares of Company Stock returned to the Company.

Section 8.2  Restricted Stock Awards.  Each Restricted Stock Award Agreement will be in such form and will contain such terms and conditions as the Administrator will deem appropriate. Each Restricted Stock Award Agreement will include (through the incorporation of these provisions by reference or otherwise) the substance of each of the following provisions:

(a)Purchase Price.   The purchase price, if any, under each Restricted Stock Award Agreement will be such amount as the Administrator will determine and designate in the Award Agreement.

(b)Vesting.   Shares of Company Stock awarded under a Restricted Stock Award Agreement may, but need not, be subject to vesting, as determined by the Administrator and specified in the applicable Award Agreement. Upon a Change in Control, any Restricted Stock Award, to the extent subject to vesting, will be immediately vested.

(c)Termination of Employment.   Upon a Grantee’s Termination of Employment, the Company may reacquire any or all of the shares of Company Stock held by the Grantee which have not yet vested as of the date of the Termination of Employment under the terms of the Restricted Stock Award Agreement. If as of the Termination of Employment the restrictions applicable to a Restricted Stock Award have not been satisfied, the Restricted Stock Award will be forfeited and the underlying shares of Company Stock returned to the Company.

ARTICLE IX

Exercise and Transferability

Section 9.1  Exercise.  Subject to Article IV(f), other provisions of the Plan and the Award Agreement, as well as such other terms and conditions as the Administrator may impose, each Stock Award that is exercisable in whole or in part after the Grant Date will be exercisable in one or more installments commencing on the date it vests under the applicable Award Agreement. Each such Stock Award will be exercised by delivery to the Company of written notice of exercise, in whole or in part, and delivery of such other documents, instruments and other items as may be required by the applicable Award

8

Agreement. The Exercise Price will be paid in full at the time of the exercise. Payment may, at the election of the Grantee, be made in any one or any combination of the following:

(a)Cash;

(b)Company Stock valued at its Fair Market Value on the business day preceding the date of exercise (including through an attestation procedure);

(c)By waiver of compensation due or accrued to the Grantee for services rendered;

(d)With the consent of the Administrator, by tender of property; or

(e)Consideration received by the Company under any form of cashless exercise approved by the Administrator, including (provided that a public market for the Company Stock exists):

(i)A “same day sale” commitment from the Grantee and a broker-dealer that is a member of the National Association of Securities Dealers (an “NASD Dealer”) whereby the Grantee irrevocably elects to exercise the Stock Award and to sell a portion of the Company Stock so purchased in order to pay for the Stock Award, and whereby the NASD Dealer irrevocably commits upon receipt of such Company Stock to forward the Exercise Price directly to the Company; or

(ii)A “margin” commitment from the Grantee and an NASD Dealer whereby the Grantee irrevocably elects to exercise the Stock Award and to pledge the Company Stock so purchased to the NASD Dealer in a margin account as security for a loan from the NASD Dealer in the amount of the Exercise Price, and whereby the NASD Dealer irrevocably commits upon receipt of such Company Stock to forward the Exercise Price directly to the Company.

Section 9.2  Transferability.  Each Stock Award granted hereunder will by its terms not be assignable or transferable other than by will or the laws of descent and distribution and may be exercised, during the Grantee’s lifetime, only by the Grantee. A Stock Award may be exercised by the Grantee’s personal representative or heir(s) upon the Grantee’s death, but only during the period ending on the earlier of (a) the date 12 months following the date of death (or such longer or shorter period as is specified in the applicable Award Agreement), or (b) the expiration of the term of the Stock Award as specified in the Award Agreement. If, after death, the Stock Award is not exercised within the time specified herein, the Stock Award will terminate.

ARTICLE X

Amendment and Termination of the Plan

The Board may supplement, amend, alter or discontinue the Plan in its sole discretion at any time and from time to time, but no supplement, amendment, alteration or discontinuation will be made which would impair the rights of a Grantee under an Award theretofore granted without the Grantee’s consent, except that any supplement, amendment, alteration or discontinuation may be made to (a) avoid a material charge or expense to the Company, (b) cause the Plan to comply with applicable law, or (c) permit the Company to claim a tax deduction under applicable law. In addition, subject to the provisions of this Section, the Board, in its sole discretion at any time and from time to time, may supplement, amend, alter or discontinue this Plan without the approval of the Company’s shareholders (a) to the extent such approval is not required by applicable law or the terms of a written agreement, and (b) so long as any such amendment or alteration does not increase the number of Shares subject to this Plan (other than pursuant to Section 12.9) or increase the maximum number of Stock Awards that the Administrator may award under the Plan. The Committee may supplement, amend, alter or discontinue the terms of any Award theretofore granted, prospectively or retroactively, on the same conditions and limitations (and exceptions

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to limitations) as apply to the Board under the foregoing provisions of this Section, and further subject to any approval or limitations the Board may impose.

ARTICLE XI

Legal Construction

Section 11.1  Gender and Number.  Except where otherwise indicated by the context, any masculine term used herein also includes the feminine, the plural includes the singular and the singular includes the plural.

Section 11.2  Severability.  In the event any provision of the Plan is held to be illegal or invalid for any reason, the illegality or invalidity will not affect the remaining parts of this Plan, and this Plan will be construed and enforced as if the illegal or invalid provision had never been included herein.

Section 11.3  Requirements of Law.  The grant of Awards and the issuance of shares of Company Stock under this Plan will be subject to all applicable statutes, laws, rules and regulations and to such approvals and requirements as may be required from time to time by any governmental authorities or any securities exchange or market on which the shares of Company Stock are then listed or traded.

Section 11.4  Governing Law.  Except to the extent preempted by the Federal laws of the United States, the Plan and all Award Agreements will be construed in accordance with and governed by the laws of the State of Indiana without giving effect to any choice or conflict of law provisions, principles or rules (whether of the State of Indiana or any other jurisdiction) that would cause the application of any laws of any jurisdiction other than the State of Indiana.

Section 11.5  Headings.  The descriptive headings and sections of this Plan are provided herein for convenience of reference only and will not serve as a basis for interpretation or construction of the Plan.

Section 11.6  Mistake of Fact.  Any mistake of fact or misstatement of facts will be corrected when it becomes known by a proper adjustment to an Award or Award Agreement.

Section 11.7  Evidence.  Evidence required of anyone under the Plan may be by certificate, affidavit, document or other information which the person relying thereon considers pertinent and reliable, and signed, made or presented by the proper party or parties.

ARTICLE XII

Miscellaneous

Section 12.1  Section 83(b) Election.  If the Administrator has not, on the Grant Date or any later date, prohibited such Grantee from making the following election, and the Grantee has, in connection with the receipt or exercise of any Stock Award (when applicable), made the election permitted under Code Section 83(b) (i.e., an election to include in such Grantee’s gross income in the year of transfer the amounts specified in Code Section 83(b)), such Grantee will notify the Company of such election within ten days of filing notice of the election with the Internal Revenue Service, in addition to any filing and notification required pursuant to regulations issued under the authority of Code Section 83(b).

Section 12.2  Withholding Requirements.

(a)Whenever under the Plan, shares of Company Stock are to be delivered upon exercise or payment of a Stock Award, or any other event with respect to rights and benefits hereunder, the Company will be entitled to require as a condition of delivery (i) that the Grantee remit an amount sufficient to satisfy all federal, state and local withholding tax requirements related thereto, (ii) the withholding of such sums from compensation otherwise due to the Grantee or

10

from any shares of Company Stock due to the Grantee under the Plan or (iii) any combination of the foregoing.

(b)If any disqualifying disposition described in Section 7.1(e) is made with respect to shares of Company Stock acquired under an ISO granted pursuant to the Plan or any Code Section 83(b) election described in Section 12.1 is made, then the person making such disqualifying disposition or election will remit to the Company an amount sufficient to satisfy all federal, state, and local withholding taxes thereby incurred; provided that, in lieu of or in addition to the foregoing, the Company will have the right to withhold such sums from compensation otherwise due to the Grantee or from any shares of Company Stock due to the Grantee under the Plan.

Section 12.3  Withholding Arrangements.

(a)Subject to subsection (b), a Grantee may elect for withholding (“Share Withholding”) by the Company a portion of the shares of Company Stock otherwise deliverable to such Grantee upon the exercise or payment of a Stock Award (a “Taxable Event”) having a Fair Market Value equal to:

(i)The minimum amount necessary to satisfy required federal, state, or local withholding tax liability attributable to the Taxable Event; or

(ii)With the Administrator’s prior approval, a greater amount, not to exceed the estimated total amount of such Grantee’s tax liability with respect to the Taxable Event.

(b)Each Share Withholding election by a Grantee will be made in writing in a form acceptable to the Administrator and will be subject to the following restrictions:

(i)A Grantee’s right to make such an election will be subject to the Administrator’s right to revoke such right at any time before the Grantee’s election unless the Administrator specifically waives its right to do so in the Award Agreement;

(ii)The Grantee’s election must be made before the date (the “Tax Date”) on which the amount of tax to be withheld is determined;

(iii)The Grantee’s election will be irrevocable by the Grantee; and

(iv)In the event that the Tax Date is deferred until six months after the delivery of Company Stock under Section 83(b) of the Code, the Grantee will receive the full amount of Company Stock with respect to which the exercise occurs, but such Grantee will be unconditionally obligated to tender back to the Company the proper number of shares of Company Stock on the Tax Date.

Section 12.4  Securities Law Matters.

(a)If the Administrator deems necessary to comply with the Securities Act, or any rules, regulations or other requirements of the SEC or any stock exchange or automated quotation system, the Administrator may require a written investment intent representation by the Grantee and may require that a restrictive legend be affixed to certificates for shares of Company Stock, that the Company Stock be subject to such stock transfer orders and other restrictions as the Administrator may deem necessary or advisable.

(b)If, based upon the opinion of counsel for the Company, the Administrator determines that the exercise of, or delivery of benefits pursuant to, any Stock Award would violate any applicable provision of (i) federal or state securities law, or (ii) the listing requirements of any national securities exchange on which are listed any of the Company’s equity securities, then the

11

Administrator may postpone any such exercise or delivery, as the case may be, but the Company will use reasonable and good faith efforts to cause such exercise or delivery to comply with all such provisions at the earliest practicable date.

Section 12.5  Funding.  Benefits payable under the Plan to any person will be paid directly by the Company. The Company will not be required to fund, or otherwise segregate assets to be used for payment of, benefits under the Plan.

Section 12.6  No Employment Rights.  Neither the establishment of the Plan, nor the granting of any Stock Award, will be construed to (a) give any Grantee the right to remain employed by the Company or any of its Affiliates or to any benefits not specifically provided by the Plan, or (b) in any manner modify the right of the Company or any of its Affiliates to modify, amend, or terminate any of its employee benefit plans.

Section 12.7  No Rights of a Shareholder.  A Grantee will not, by reason of any Stock Award, have any right as a shareholder of the Company with respect to the shares of Company Stock which may be deliverable upon exercise or payment of such Stock Award until such shares have been actually delivered to such Grantee.

Section 12.8  Non-Uniform Determinations.  The Administrator’s determinations under the Plan need not be uniform and may be made by the Administrator selectively among persons who receive, or are eligible to receive, Stock Awards (whether or not such persons are similarly situated). Without limiting the generality of the foregoing, the Administrator will be entitled, among other things, to make non-uniform and selective determinations and to enter into non-uniform and selective Award Agreements as to (a) the identity of the Grantees, (b) the terms and provisions of Stock Awards, and (c) the treatment of Terminations of Employment. Notwithstanding the foregoing, the Administrator’s interpretation of Plan provisions will be uniform as to similarly situated Grantees.

Section 12.9  Adjustments.  The Administrator will make equitable adjustment of: (a) the aggregate number of shares of Company Stock available under Section 3.1; (b) the number of shares of Company Stock covered by a Stock Award; and (c) the Exercise Price of a Stock Award (if applicable) to reflect a stock dividend, stock split, reverse stock split, share combination, recapitalization, merger, consolidation, asset spin-off, reorganization or similar event of or by the Company.

Section 12.10  Adoption Award and Shareholder Approval.  The Plan is effective as of April 26, 2007, the date the Plan was approved by the Company’s shareholders.

Section 12.11  Nonexclusivity.  Neither the adoption of the Plan by the Board, the submission of the Plan to the shareholders of the Company for approval, nor any provision of the Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem desirable, including the granting of stock options and bonuses otherwise than under the Plan, and such arrangements may be either generally applicable or applicable only in specific cases.

Section 12.13  Cancellation of Options.  The Administrator may, with the concurrence of the affected Grantee, cancel any unexercised Stock Award granted under this Plan. In the event of any such cancellation, the Administrator may authorize the granting of a new Stock Award (which may or may not cover the same number of shares of Company Stock that had been subject of any prior unexercised Stock Award) in such manner, at new Exercise Price and subject to the same terms, conditions and discretion as would have been applicable under this Plan had the canceled Stock Award not been previously granted.

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	MAINSOURCE FINANCIAL GROUP, INC.
DATED:	By:
		James L. Saner, Sr., President
ATTEST:
By:

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EX-21

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EXHIBIT 21

EXHIBIT 21 — SUBSIDIARIES OF THE REGISTRANT

Name	State of Incorporation
MainSource Bank	Indiana
MainSource Bank of Illinois	Illinois
MainSource Bank — Ohio	Ohio
MainSource Bank — Hobart	Indiana
MainSource Insurance, LLC	Indiana
MSB Investments of Nevada, Inc.	Nevada
MSB Holdings of Nevada, Inc.	Nevada
MSB of Nevada, LLC	Nevada
MainSource Statutory Trust I	Connecticut
MainSource Statutory Trust II	Connecticut
MainSource Statutory Trust III	Delaware
MainSource Statutory Trust IV	Delaware
MSB Realty, Inc.	Maryland
MainSource Title, LLC	Indiana

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EXHIBIT 21

EX-23.1

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EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

       We consent to the incorporation by reference in the Registration Statement of MainSource Financial Group, Inc. on Form S-8 (No. 33-45395) of our report dated March 12, 2008 with respect to the consolidated financial statements of MainSource Financial Group, Inc. and the effectiveness of internal control over financial reporting, which appears in this Annual Report on Form 10-K of MainSource Financial Group, Inc. for the year ended December 31, 2007.

	Crowe Chizek and Company LLC
Louisville, Kentucky March 12, 2008

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EXHIBIT 23.1

EX-31.1

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EXHIBIT 31.1

Sarbanes-Oxley Act of 2002. Section 302 Certification of Chief Executive Officer

I, Robert E. Hoptry, certify that:

1.

I have reviewed this annual report on Form 10-K of MainSource Financial Group;

2.

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: March 14, 2008

Robert E. Hoptry [Signature]

President & Chief Executive Officer [Title]

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EXHIBIT 31.1

EX-31.2

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EXHIBIT 31.2

Sarbanes-Oxley Act of 2002. Section 302 Certification of Chief Financial Officer

I, James M. Anderson, certify that:

1.

I have reviewed this annual report on Form 10-K of MainSource Financial Group;

2.

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: March 14, 2008

James M. Anderson [Signature]

Senior Vice President & Chief Financial Officer [Title]

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EXHIBIT 31.2

EX-32.1

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EXHIBIT 32.1

SARBANES-OXLEY ACT OF 2002, SECTION 906 CERTIFICATION BY CHIEF EXECUTIVE OFFICER

       As an accompaniment to the Annual Report of MainSource Financial Group, Inc. (the "Company") on Form 10-K for the period ending December 31, 2007 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Robert E. Hoptry, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

•

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

•

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the periods presented.

       This certification is based on inquiries that I have made, or have caused to be made, in a good faith effort on my part to be a responsible and competent chief executive officer serving the Company and its many constituencies.

       This certification merely accompanies and is not part of the Report, shall not be deemed filed for purposes of the Securities Exchange Act of 1934, and may not be used for any purpose other than compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Date: March 14, 2008

Robert E. Hoptry

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EXHIBIT 32.1

EX-32.2

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EXHIBIT 32.2

SARBANES-OXLEY ACT OF 2002, SECTION 906 CERTIFICATION BY CHIEF FINANCIAL OFFICER

       As an accompaniment to the Annual Report of MainSource Financial Group, Inc. (the "Company") on Form 10-K for the period ending December 31, 2007 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, James M. Anderson, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

•

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

•

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the periods presented.

       This certification is based on inquiries that I have made, or have caused to be made, in a good faith effort on my part to be a responsible and competent chief executive officer serving the Company and its many constituencies.

       This certification merely accompanies and is not part of the Report, shall not be deemed filed for purposes of the Securities Exchange Act of 1934, and may not be used for any purpose other than compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Date: March 14, 2008

James M. Anderson

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EXHIBIT 32.2