SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                       PURSUANT TO SECTION 13 OR 15(D) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

        Date of Report (Date of earliest event reported): March 27, 2008

                            BANKFINANCIAL CORPORATION
                            -------------------------
               (Exact Name of Registrant as Specified in Charter)

         Maryland                      0-51331                     75-3199276
  -----------------                ---------------              ---------------
(State or Other Jurisdiction)    (Commission File No.)         (I.R.S. Employer
      of Incorporation)                                      Identification No.)


15W060 North Frontage Road, Burr Ridge, Illinois                  60527
- ------------------------------------------------                 --------
(Address of Principal Executive Offices)                        (Zip Code)

Registrant's telephone number, including area code:  (630) 242-7700
                                                     --------------



                                 Not Applicable
                                -----------------
          (Former name or former address, if changed since last report)

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[  ] Written communications  pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[  ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17
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[  ] Pre-commencement  communications  pursuant  to Rule  14d-2(b)  under the
     Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement  communications  pursuant  to Rule  13e-4(c)  under the
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Item 8.01. Other Events. On March 27, 2008, BankFinancial Corporation (the "Company") announced that its Board of Directors (the "Board") has extended the expiration date of its current share repurchase authorization from March 31, 2008 until November 15, 2008, and has increased by 201,639 shares the number of shares that can be repurchased in accordance with the authorization. The increase represents approximately 1% of the Company's issued and outstanding shares of common stock as of March 26, 2008. As of March 26, 2008, the Company had repurchased 3,307,023 shares of its common stock out of the 3,605,384 shares that had been previously authorized for repurchase. As a result of these actions, the Company is currently authorized to repurchase 500,000 shares of common stock. As previously disclosed, the authorization permits shares to be repurchased in open market or negotiated transactions, and pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities and Exchange Commission. The authorization will be utilized at management's discretion, subject to the limitations set forth in Rule 10b-18 of the Securities and Exchange Commission and other applicable legal requirements, and to price and other internal limitations established by the Board. The authorization may be suspended, terminated or modified at any time prior to November 15, 2008 for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. These factors will also affect the timing and amount of share repurchases. A copy of the press release announcing the extension and increase is attached as Exhibit 99 to this report. Item 9.01. Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Exhibit 99 Press release dated March 27, 2008

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. BANKFINANCIAL CORPORATION DATE: March 27, 2008 By: /s/ F. Morgan Gasior -------------------------------------- F. Morgan Gasior Chairman of the Board, Chief Executive Officer and President

EXHIBIT INDEX Exhibit No. Exhibit 99 Press release dated March 27, 2007

                                                                   BankFinancial
                                                                     Corporation

FOR IMMEDIATE RELEASE


     BankFinancial Corporation Extends and Expands Share Repurchase Program

Burr Ridge, Illinois - (March 27, 2008) BankFinancial Corporation (Nasdaq -
BFIN) announced today that its Board of Directors has extended the expiration
date of the Company's current share repurchase authorization from March 31, 2008
until November 15, 2008, and has increased by 201,639 shares the number of
shares that can be repurchased in accordance with the authorization. The
increase represents approximately 1% of the Company's issued and outstanding
shares of common stock as of March 26, 2008. As of March 26, 2008, the Company
had repurchased 3,307,023 shares of its common stock out of the 3,605,384 shares
that had been previously authorized for repurchase. As a result of these
actions, the Company is currently authorized to repurchase 500,000 shares of
common stock.

     The  authorization  permits  shares  to be  repurchased  in open  market or
negotiated transactions, and pursuant to any trading plan that may be adopted in
accordance with Rule 10b5-1 of the Securities and Exchange Commission.

     The authorization will be utilized at management's discretion, subject to
the limitations set forth in Rule 10b-18 of the Securities and Exchange
Commission and other applicable legal requirements, and to price and other
internal limitations established by the Company's Board of Directors.

     The authorization will expire on November 15, 2008, and may be suspended,
terminated or modified at any time prior to that date for any reason, including
market conditions, the cost of repurchasing shares, the availability of
alternative investment opportunities, liquidity, and other factors deemed
appropriate. These factors may also affect the timing and amount of share
repurchases.

     The authorization does not obligate the Company to purchase any particular
number of shares. Any shares that are repurchased pursuant to the authorization
may be utilized to fund grants that are made under the Equity Incentive Plan
that the Company's stockholders approved at the Company's 2006 Annual Meeting,
and for other corporate purposes.

     Share repurchases will be funded from available working capital,
supplemented if deemed necessary or desirable with dividends from the Company's
principal subsidiary that will be subject to regulatory approval or
non-objection.

     The Company is the holding company for BankFinancial, F.S.B., a
full-service, community-oriented savings bank providing financial services to
individuals, families and businesses through 18 full-service banking offices,
located in Cook, DuPage, Lake and Will Counties, Illinois. At December 31, 2007,
the Company had total assets of $1.481 billion, total loans of $1.254 billion,
total deposits of $1.074 billion and stockholders' equity of $291 million. As of
March 26, 2008, the Company had 21,992,077 million issued and outstanding shares
of common stock. The Company's common stock trades on the Nasdaq Global Select
Market under the symbol BFIN.

     "Forward-looking statements" as defined in the Private Securities
Litigation Reform Act of 1995 may be included in this release. A variety of
factors could cause BankFinancial Corporation's actual results to differ from
those expected at the time of this release. Investors are urged to carefully
review and consider the various disclosures made by BankFinancial Corporation in
its periodic reports filed with the Securities and Exchange Commission,
including the risk factors and other information disclosed in BankFinancial
Corporation's Annual Report on Form 10-K for the most recently ended fiscal
year. Copies of these filings are available at no cost on the SEC's web site at
http://www.sec.gov or on BankFinancial's web site at
http://www.bankfinancial.com.

For Further Information

For Further Information Contact:
Shareholder, Analyst and Investor Inquiries:      Media Inquiries:
Elizabeth A. Doolan,                              Gregg T. Adams,
Senior Vice President - Controller                Executive Vice President -
BankFinancial Corporation                         Marketing & Sales
Telephone: 630-242-7151                           BankFinancial Corporation
                                                  Telephone: 630-242-7234