BankFinancail
                                                                     Corproation

FOR IMMEDIATE RELEASE
- ---------------------

                BankFinancial Corporation Declares Cash Dividend

     Burr Ridge, Illinois - (March 30, 2006) BankFinancial Corporation (Nasdaq -
BFIN)  announced  today that its Board of Directors  has declared its first cash
dividend of $0.06 per common share. The dividend will be payable on May 19, 2006
to stockholders of record on May 3, 2006.

     BankFinancial  will mail further  information  relating to this dividend to
our  stockholders  of  record.  The  mailing  will  include  a Form  W-9 for tax
identification  certification,  which will need to be completed  and returned by
April 28,  2006 to  prevent  withholding  taxes  from  being  deducted  from the
dividend payment. The mailing will also include information on a program for the
direct deposit of the dividend payment into stockholders' bank accounts.

     BankFinancial   is  also  in  the  process  of   establishing   a  dividend
reinvestment  program,  and expects to have the program in place  during the 3rd
quarter of 2006.  The program  will enable  stockholders  to purchase  shares of
BankFinancial common stock with the proceeds of future dividend payments without
the payment of  brokerage  commissions.  The program  will not be  available  in
connection with the current dividend.

     BankFinancial Corporation 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 16 full-service  banking offices,
located in Cook, DuPage, Lake and Will Counties, Illinois. At December 31, 2005,
BankFinancial  Corporation  had total assets of $1.6 billion,  total deposits of
$1.1 billion and stockholders' equity of $329 million. BankFinancial Corporation
became a  publicly-traded  company on June 24, 2005, and its common stock trades
on the Nasdaq Stock 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
Contact:     Shareholder, Analyst
             and Investor Inquiries:                   Media Inquiries:
             Terence C. Wise,                          Gregg T. Adams,
             Vice President - Investor Relations       Executive Vice President-
             BankFinancial Corporation                 Marketing & Sales
             Telephone: 630-242-7151                   BankFinancial Corporation
                                                       Telephone: 630-242-7234