UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM 10-K

FOR ANNUAL AND TRANSITION REPORTS
PURSUANT TO SECTIONS 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

(Mark One)

þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2004

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____________________ to ________________

Commission file number 0-14289

GREENE COUNTY BANCSHARES, INC.

Registrant’s telephone number, including area code: (423) 639-5111.

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:

Common Stock — $2.00 par value

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 þ 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 an accelerated filer (as defined in Exchange Act Rule 12b-2 of the Act.) YES þ NO o

The aggregate market value of the voting stock held by non-affiliates of the registrant on June 30, 2004 was $152.0 million. The market value calculation was determined using the closing sale price of the registrant’s common stock on June 30, 2004, as reported on the Nasdaq National Market. For purposes of this calculation, the term “affiliate” refers to all directors, executive officers and 10% shareholders of the registrant. As of the close of business on March 11, 2005, 7,650,816 shares of the registrant’s common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The following lists the documents incorporated by reference and the Part of the Form 10-K into which the document is incorporated:

     1. Portions of Proxy Statement for 2005 Annual Meeting of Shareholders. (Part III)

PART I

Forward-Looking Statements

     The information contained herein contains forward-looking statements that involve a number of risks and uncertainties. A number of factors, including those discussed herein, could cause results to differ materially from those anticipated by such forward-looking statements which are within the meaning of that term in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. In addition, such forward-looking statements are necessarily dependent upon assumptions, estimates and data that may be incorrect or imprecise. Accordingly, any forward-looking statements included herein do not purport to be predictions of future events or circumstances and may not be realized. Forward-looking statements can be identified by, among other things, the use of forward-looking terminology such as “intends,” “believes,” “expects,” “may,” “will,” “should,” “seeks,” “pro forma” or “anticipates,” or the negatives thereof, or other variations thereon of comparable terminology, or by discussions of strategy or intentions. Such statements may include, but are not limited to, projections of income or loss, expenditures, acquisitions, plans for future operations, financing needs or plans relating to services of the Company, as well as assumptions relating to the foregoing. The Company’s actual results may differ materially from the results anticipated in forward-looking statements due to a variety of factors, including, but not limited to (1) unanticipated deterioration in the financial condition of borrowers resulting in significant increases in loan losses and provisions for those losses; (2) lack of sustained growth in the economy in the markets that the Bank serves; (3) increased competition with other financial institutions in the markets that the Bank serves; (4) changes in the legislative and regulatory environment; (5) the Company’s successful implementation of its growth strategy; and (6) the loss of key personnel. All forward-looking statements herein are based on information available to us as of the date the Company’s Annual Report on Form 10-K was filed with the Securities and Exchange Commission (“SEC”).

ITEM 1. BUSINESS

Presentation of Amounts

     All dollar amounts set forth below, other than per-share amounts, are in thousands unless otherwise noted.

The Company

     Greene County Bancshares, Inc. (the “Company”) was formed in 1985 and serves as the bank holding company for Greene County Bank (the “Bank”), which is a Tennessee-chartered commercial bank that conducts the principal business of the Company. At December 31, 2004, and based on Federal Reserve Board (“FRB”) data as of September 30, 2004, the Company believes it was the second largest bank holding company headquartered in the state of Tennessee. At December 31, 2004, the Company maintained a main office in Greeneville, Tennessee and 41 full-service bank branches (of which eight are in leased operating premises) and nine separate locations operated by the Bank’s subsidiaries.

     The Company’s assets consist primarily of its investment in the Bank and liquid investments. Its primary activities are conducted through the Bank. At December 31, 2004, the Company’s consolidated total assets were $1,233,403, its consolidated net loans, including loans held for sale, were $1,032,297, its total deposits were $998,022 and its total shareholders’ equity was $108,718.

     The Company’s net income is dependent primarily on its net interest income, which is the difference between the interest income earned on its loans, investment assets and other interest-earning assets and the interest paid on deposits and other interest-bearing liabilities. To a lesser extent, the Company’s net income also is affected by its noninterest income derived principally from service charges and fees as well as the level of noninterest expenses such as salaries and employee benefits.

     The operations of the Company are significantly affected by prevailing economic conditions, competition and the monetary, fiscal and regulatory policies of governmental agencies. Lending activities are

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influenced by the general credit needs of individuals and small and medium-sized businesses in the Company’s market area, competition among lenders, the level of interest rates and the availability of funds. Deposit flows and costs of funds are influenced by prevailing market rates of interest, primarily the rates paid on competing investments, account maturities and the levels of personal income and savings in the Company’s market area.

     The principal executive offices of the Company are located at 100 North Main Street, Greeneville, Tennessee 37743-4992 and its telephone number is (423) 639-5111.

The Bank

     The Bank is a Tennessee-chartered commercial bank established in 1890 which has its principal executive offices in Greeneville, Tennessee. The principal business of the Bank consists of attracting deposits from the general public and investing those funds, together with funds generated from operations and from principal and interest payments on loans, primarily in commercial loans, commercial and residential real estate loans, and installment consumer loans. The Bank also provides collection and other banking services, directly and through its finance, acceptance and title subsidiary corporations. At December 31, 2004, the Bank had 40 full-service banking offices located throughout East Tennessee, including Greene, Washington, Blount, Knox, Hamblen, McMinn, Loudon, Hawkins, Sullivan, Cocke and Monroe Counties, and in Middle Tennessee, Sumner, Rutherford, Davidson and Lawrence Counties. The Bank also operates two other full service branches–one located in nearby Madison County, North Carolina and the other in nearby Bristol, Virginia. Further, the Bank operates a trust and money management function doing business as President’s Trust from offices in Wilson County, Tennessee, and a mortgage banking operation in Knox County, Tennessee.

     The Bank also conducts separate businesses through three wholly owned subsidiaries. Through Superior Financial Services, Inc. (“Superior Financial”), the Bank operates eight consumer finance company offices located in Greene, Blount, Hamblen, Washington, Sullivan, Sevier, Knox and Bradley Counties, Tennessee. Through GCB Acceptance Corporation (“GCB Acceptance”), the Bank operates a sub-prime automobile lending company with a sole office in Johnson City, Tennessee. Through Fairway Title Co., the Bank operates a title company headquartered in its main office in Knox County, Tennessee.

     Deposits of the Bank are insured by the Bank Insurance Fund (“BIF”) of the Federal Deposit Insurance Corporation (“FDIC”) to a maximum of $100,000 for each insured depositor. The Bank is subject to supervision and regulation by the Tennessee Department of Financial Institutions (the “Banking Department”) and the FDIC. See “Regulation, Supervision and Governmental Policy.”

     On November 21, 2003, the Company entered the Middle Tennessee market by completing its acquisition of Gallatin, Tennessee-based Independent Bankshares Corporation (“IBC”). IBC was the bank holding company for First Independent Bank, which had four offices in Gallatin and Hendersonville, Tennessee, and Rutherford Bank and Trust, with three offices in Murfreesboro and Smyrna, Tennessee. First Independent Bank and Rutherford Bank and Trust were subsequently merged with the Bank, with the Bank as the surviving entity. Consideration in the transaction included the issuance of 836,114 shares of the Company’s common stock and payment of approximately $9,060 in cash and $198 in stock options in exchange for all outstanding IBC common stock.

     On November 15, 2004 the Company established banking operations in Nashville, Tennessee, with the opening of its first full-service branch of Middle Tennessee Bank & Trust, which, like all of the Bank’s bank brands, operates within the Bank’s structure. This new branch in Davidson County, Tennessee expands the Company’s presence in the Middle Tennessee market and helps fill in the market between Sumner and Rutherford Counties.

     On December 10, 2004 the Company purchased three full-service branches from National Bank of Commerce located in Lawrence County Tennessee. This purchase (“NBC transaction”) fits strategically with the Bank’s operations in Rutherford and Sumner Counties, as well as the November, 2004 initiative into Davidson County.

Growth and Business Strategy

     The Company expects that, over the intermediate term, its growth from mergers and acquisitions, including acquisitions of both entire financial institutions and selected branches of financial institutions, will

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continue. De novo branching will also be a method of growth, particularly in high-growth and other demographically-desirable markets.

     The Company’s strategic plan outlines a geographic expansion policy within a 300-mile radius of its headquarters in Greene County, Tennessee. This policy could result in the Company expanding westward and eastward up to and including Nashville, Tennessee and Roanoke, Virginia, respectively, east/southeast up to and including the Piedmont area of North Carolina and western North Carolina, southward to northern Georgia and northward into eastern and central Kentucky. In particular, the Company believes the markets in and around Knoxville, Nashville and Chattanooga, Tennessee are highly desirable areas with respect to expansion and growth plans.

     In addition to the Company’s business model, which is summarized in the paragraphs above entitled “The Company” and “The Bank”, the Company is continuously investigating and analyzing other lines and areas of business. These include, but are not limited to, various types of insurance and real estate activities. Conversely, the Company frequently evaluates and analyzes the profitability, risk factors and viability of its various business lines and segments and, depending upon the results of these evaluations and analyses, may conclude to exit certain segments and/or business lines. Further, in conjunction with these ongoing evaluations and analyses, the Company may decide to sell, merge or close certain branch facilities.

Lending Activities

     General. The loan portfolio of the Company is composed of commercial, commercial and residential real estate and installment consumer loans. Such loans are primarily originated within the Company’s market areas of East and Middle Tennessee and are generally secured by residential or commercial real estate or business or personal property located in the counties of Greene, Washington, Hamblen, Sullivan, Hawkins, Blount, Knox, McMinn, Loudon, Monroe, Cocke, Sumner, Rutherford, Davidson and Lawrence Counties, Tennessee.

     Loan Composition. The following table sets forth the composition of the Company’s loans at December 31 for each of the periods indicated.

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     Loan Maturities. The following table reflects at December 31, 2004 the dollar amount of loans maturing based on their contractual terms to maturity. Demand loans, loans having no stated schedule of repayments and loans having no stated maturity are reported as due in one year or less.

     The following table sets forth the dollar amount of the loans maturing subsequent to the year ending December 31, 2005 distinguished between those with predetermined interest rates and those with floating, or variable, interest rates.

     Commercial Loans. Commercial loans are made for a variety of business purposes, including working capital, inventory and equipment and capital expansion. At December 31, 2004, commercial loans outstanding totaled $165,975, or 16.08%, of the Company’s net loan portfolio. Such loans are usually amortized over one to seven years and generally mature within five years. Commercial loan applications must be supported by current financial information on the borrower and, where appropriate, by adequate collateral. Commercial loans are generally underwritten by addressing cash flow (debt service coverage), primary and secondary sources of repayment, financial strength of any guarantor, liquidity, leverage, management experience, ownership structure, economic conditions and industry-specific trends and collateral. The loan to value ratio depends on the type of collateral. Generally speaking, accounts receivable are financed between 70% and 80% of accounts receivable less than 90 days past due. If other collateral is taken to support the loan, the loan to value of accounts receivable may approach 85%. Inventory financing will range between 50% and 60% depending on the borrower and nature of inventory. The Company requires a first lien position for such loans. These types of loans are generally considered to be a higher credit risk than other loans originated by the Company.

     Commercial Real Estate Loans. The Company originates commercial loans, generally to existing business customers, secured by real estate located in the Company’s market area. At December 31, 2004, commercial real estate loans totaled $484,088 or 46.89%, of the Company’s net loan portfolio. Such loans are usually amortized over 10 to 20 years, generally mature within five years and are priced based in part upon the prime rate, as reported in The Wall Street Journal. Commercial real estate loans are generally underwritten by addressing cash flow (debt service coverage), primary and secondary source of repayment, financial strength of any guarantor, strength of the tenant (if any), liquidity, leverage, management experience, ownership structure, economic conditions and industry specific trends and collateral. Generally, the Company will loan up to 80-85% of the value of improved property, 65% of the value of raw land and 75% of the value of land to be acquired and developed. A first lien on the property and assignment of lease is required if the collateral is rental property, with second lien positions considered on a case-by-case basis.

     Residential Real Estate. The Company also originates one-to-four family, owner-occupied residential mortgage loans secured by property located in the Company’s primary market area. The majority of the Company’s residential mortgage loans consists of loans secured by owner-occupied, single-family residences.

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At December 31, 2004, the Company had $319,713, or 30.97%, of its net loan portfolio in residential real estate loans. Residential real estate loans generally have a loan-to-value ratio of 85%. These loans are underwritten by giving consideration to the ability to pay, stability of employment or source of income, credit history and loan-to-value ratio. Home equity loans make up approximately 27% of residential real estate loans. Home equity loans may have higher loan-to-value ratios when the borrower’s repayment capacity and credit history conform to underwriting standards. Superior Financial extends sub-prime mortgages to borrowers who generally have a higher risk of default than mortgages extended by the Bank. Sub-prime mortgages totaled $12,314 or 3.85%, of the Company’s residential real estate loans at December 31, 2004.

     The Company sells most of its one-to-four family mortgage loans in the secondary market to Freddie Mac and other mortgage investors through the Bank’s mortgage banking operation. Sales of such loans to Freddie Mac and other mortgage investors totaled $49,892 and $78,478 during 2004 and 2003, respectively, and the related mortgage servicing rights were sold together with the loans.

     Installment Consumer Loans. At December 31, 2004, the Company’s installment consumer loan portfolio totaled $82,532, or 7.99%, of the Company’s total net loan portfolio. The Company’s consumer loan portfolio is composed of secured and unsecured loans originated by the Bank, Superior Financial and GCB Acceptance. The consumer loans of the Bank have a higher risk of default than other loans originated by the Bank. Further, consumer loans originated by Superior Financial and GCB Acceptance, which are finance companies rather than banks, generally have a greater risk of default than such loans originated by commercial banks and, accordingly, carry a higher interest rate. Superior Financial and GCB Acceptance installment consumer loans totaled approximately $29,919, or 36.25%, of the Company’s installment consumer loans at December 31, 2004. The performance of consumer loans will be affected by the local and regional economy as well as the rates of personal bankruptcies, job loss, divorce and other individual-specific characteristics.

     Past Due, Special Mention, Classified and Nonaccrual Loans. The Company classifies its problem loans into three categories: past due loans, special mention loans and classified loans (both accruing and non-accruing interest).

     When management determines that a loan is no longer performing, and that collection of interest appears doubtful, the loan is placed on nonaccrual status. All loans that are 90 days past due are considered nonaccrual unless they are adequately secured and there is reasonable assurance of full collection of principal and interest. Management closely monitors all loans that are contractually 90 days past due, treated as “special mention” or otherwise classified or on nonaccrual status. Nonaccrual loans that are 120 days past due without assurance of repayment are charged off against the allowance for loan losses.

     The following table sets forth information with respect to the Company’s nonperforming assets at the dates indicated. At these dates, the Company did not have any restructured loans within the meaning of Statement of Financial Accounting Standards No. 15.

     The Company’s continuing efforts to resolve nonperforming loans occasionally include foreclosures, which result in the Company’s ownership of the real estate underlying the mortgage. If nonaccrual loans at December 31, 2004 had been current according to their original terms and had been outstanding throughout

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2004, or since origination if originated during the year, interest income on these loans would have been approximately $244. Interest actually recognized on these loans during 2004 was not significant.

     Foreclosed real estate decreased $2,246 or 62.41% to $1,353 at December 31, 2004 from $3,599 at December 31, 2003. The real estate consists of 13 properties, of which three are commercial properties with a carrying value of $703, five are single family residential properties with a carrying value of $383, three are multi-family homes with a carrying value of $257 and two are vacant lots with a carrying value of $10. Management expects to liquidate these properties during 2005. Management has recorded these properties at fair value less estimated selling cost and the subsequent sale of such properties is not expected to result in any adverse effect on the Company’s results of operations, subject to business and marketing conditions at the time of sale. Other repossessed assets decreased $414, or 66.03% to $213 at December 31, 2004 from $627 at December 31, 2003. This decrease is primarily due to improved repossession results at Superior Financial and GCB Acceptance.

     Total impaired loans increased by $1,578 or 14.84%, from $10,632 at December 31, 2003 to $12,210 at December 31, 2004. This increase is primarily reflective of additional impaired loans in the Bank resulting from several commercial relationships placed on nonaccrual status and in the process of litigation or foreclosure action.

     At December 31, 2004, the Company had approximately $5,968 in loans that are not currently classified as nonaccrual or 90 days past due or otherwise restructured but which known information about possible credit problems of borrowers caused management to have concerns as to the ability of the borrowers to comply with present loan repayment terms. Such loans were considered classified by the Company and were composed primarily of various commercial, commercial real estate and consumer loans. These loans are adequately secured and management does not expect any material loss.

     Allowance for Loan Losses. The allowance for loan losses is maintained at a level which management believes is adequate to absorb all probable losses on loans then present in the loan portfolio. The amount of the allowance is affected by: (1) loan charge-offs, which decrease the allowance; (2) recoveries on loans previously charged-off, which increase the allowance; and (3) the provision of possible loan losses charged to income, which increases the allowance. In determining the provision for possible loan losses, it is necessary for management to monitor fluctuations in the allowance resulting from actual charge-offs and recoveries, and to periodically review the size and composition of the loan portfolio in light of current and anticipated economic conditions in an effort to evaluate portfolio risks. If actual losses exceed the amount of the allowance for loan losses, earnings of the Company could be adversely affected. The amount of the provision is based on management’s judgment of those risks. During the year ended December 31, 2004, the Company’s provision for loan losses increased slightly by $61, or 1.06%, to $5,836 from $5,775 for the year ended December 31, 2003, while the allowance for loan losses increased by $1,157, or 7.94%, to $15,721 at December 31, 2004 from $14,564 at December 31, 2003. Although the increase in provisions from 2003 to 2004 was modest, management nevertheless deemed that provisions in excess of net charge-offs were necessary in order to appropriately maintain the allowance to accommodate loan growth. In addition, the allowance for loan losses was increased by $363 in 2004 by the allowance acquired in the NBC transaction.

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     The following is a summary of activity in the allowance for loan losses for the periods indicated:

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     Breakdown of allowance for loan losses by category. The following table presents an allocation among the listed loan categories of the Company’s allowance for loan losses at the dates indicated and the percentage of loans in each category to the total amount of loans at the respective year-ends.

Investment Activities

     General. The Company maintains a portfolio of investments to provide liquidity and an additional source of income.

     Securities by Category. The following table sets forth the carrying value of the securities, by major categories, held by the Company at December 31, 2004, 2003 and 2002.