IBT Bancorp, Inc.                          [LOGO]

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PRESS RELEASE

FOR IMMEDIATE RELEASE
Contact:  Charles G. Urtin,
President / CEO
Telephone:  724-863-3100
www.irwinbank.com
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                          IBT Bancorp, Inc. (AMEX: IRW)
        Announces Operating Results for the Fourth Quarter and Year Ended
                                December 31, 2005

Irwin,  Pennsylvania,  February 2, 2006:  [AMEX:  IRW] IBT Bancorp,  Inc.,  (the
"Company"),  the holding company of Irwin Bank & Trust Company,  today announced
its results of operations for the three months and year ended December 31, 2005.
The Company's net income for the three months ended  December 31, 2005 increased
$2,408,000  to income of  $1,891,000  or $.64 per  diluted  share from a loss of
$517,000,  or $ (.17) per diluted  earnings per share,  for the comparable  2004
quarter. Net income for the year ended December 31, 2005 increased $2,494,000 to
$8,579,000  or $2.88 per  diluted  share from  $6,085,000,  or $2.02 per diluted
earnings per share,  for the comparable  2004 period.  Our results for the prior
year were  impacted by an after tax charge to earnings  related to an other than
temporary  impairment in value of certain  adjustable  rate preferred  stocks of
$2,381,000 in the fourth quarter of 2004.

President  and CEO,  Charles G. Urtin,  stated,  "Interest  rates  remained  the
dominant  story in 2005. The Federal Funds rate increased to 4.00% at the end of
December 2005 from 2.00% at the end of 2004, an increase of 200 basis points. In
contrast, longer-term rates, such as the constant maturity 10 year treasury bill
stood  at  4.39%  at the  end of  December  2005,  up from  4.24%  at the end of
December,  2004, an increase of only 15 basis points.  The resulting  flat yield
curve has put negative  pressure on net interest  income  causing us to increase
rates paid on short-term deposits without a corresponding  increase in the yield
on long-term loans and investments. Our net interest margin has declined 6 basis
points from December  2004 to December  2005. On a brighter note I am pleased to
report an increase in earnings  for 2005.  In the prior year,  we wrote down our
adjustable rate preferred  stocks because of an other than temporary  decline in
value.  Had we not taken this write down diluted earnings per share for the year
ended  December  31,  2004 would have been $2.82  compared to $2.88 for the year
ended   December  31,  2005,  an  increase  of  2%.  We  continue  to  focus  on
opportunities for growth, improving operational efficiency and enhancing product
offerings,  including  electronic  solutions.  In June of 2005, we opened a loan
center in Mt. Pleasant,  PA. We consolidated three offices,  which were within a
radius  of  1.2  miles  from  each  other.  Our  internet  banking  website  was
redesigned. We introduced expanded business checking products to better meet the
needs  of our  commercial  customers.  Additionally,  in this  time of  computer
hackers and

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               309 Main Street - Irwin, PA 15642 o (724) 863-3100



identity theft we have  increased the security of our  electronic  data files by
installing tougher fire walls and a continuous  program of monitoring  attempted
break-ins.  We remain committed to a consistent  management  approach focused on
long-term performance and a commitment to enhancing shareholder value."

Total assets of the Company increased $9,294,000 to $685,151,000 at December 31,
2005 as compared to  $675,857,000  at December  31,  2004.  Total loans  reached
$442,225,000  at December 31, 2005 from  $436,548,000  at December 31, 2004,  an
increase of $5,677,000 or 1 %. Investments  increased $4,785,000 to $195,993,000
at December  31,  2005 as compared to  $191,208,000  at December  31,  2004,  an
increase of 2.5%.  Total deposits  reached  $520,486,000 at December 31, 2005 as
compared to total deposits of $526,216,000 at December 31, 2004. The decrease in
deposits  was  primarily  the  result  of the  timing  of  direct  deposits  and
redemptions of jumbo  certificates  of deposits.  Outstanding  advances from the
Federal  Home Loan Bank of  Pittsburgh  at December  31,  2005 were  $68,651,000
compared to $70,265,000 at December 31, 2004.

Statements  contained in this news release  which are not  historical  facts are
forward-looking  statements  as the term is  defined in the  Private  Securities
Litigation  Reform Act of 1995. Such  forward-looking  statements are subject to
risks and  uncertainties  which could cause actual results to differ  materially
from those currently anticipated due to a number of factors,  which include, but
are not limited to, factors discussed in documents filed by the Company with the
Securities and Exchange Commission from time to time.

Irwin Bank & Trust Company is a state  chartered  commercial  bank that conducts
its business  from its main office  located in Irwin,  Pennsylvania,  six branch
offices, two loan centers, four supermarket branches located in the Pennsylvania
counties  of  Westmoreland  and  Allegheny  and a  trust  office  in  Greensburg
Pennsylvania.  The Bank's deposits are insured up to the maximum legal amount by
the Federal Deposit Insurance Corporation.  The Company's common stock is traded
on the American Stock Exchange under the symbol "IRW".



IBT Bancorp, Inc.
Selected Financial Data

(Dollars in Thousands, except per share data)

                                                   December 31,   December 31,
                                                       2005           2004

Total Assets                                         $685,151       $675,857
Securities available for sale                         195,993        191,208
Federal Home Loan Bank Stock, at cost                   5,470          5,683
Total loans, net                                      442,225        436,548
Total liabilities                                     624,070        616,014
Interest bearing deposits                             436,639        438,968
Non-interest bearing deposits                          83,847         87,248
FHLB Advances                                          68,651         70,265
Shareholder's equity                                   61,081         59,843




                                                      Three Months Ended               Year Ended
                                                                        December 31,
                                                     2005           2004            2005          2004

                                                                                
Interest Income                                 $     9,202    $     8,642     $    35,771    $    33,726
Interest Expense                                      3,759          3,108          13,682         11,808
Net Interest Income                                   5,443          5,534          22,089         21,918
Provision for loan losses                               300            310           1,200            600
Net interest income after provision
  for loan losses                                     5,143          5,224          20,889         21,318
Non Interest Income                                   1,594          1,161           6,635          2,690
Non Interest Expense                                  4,278          6,289          16,187         15,095
Income before income taxes                            2,459             96          11,337          8,913
Income tax expense                                      568            613           2,758          2,828

Net Income                                            1,891           (517)          8,579          6,085

Per share data:
Basic earnings per share                        $      0.64    $     (0.17)    $      2.90    $      2.05
Diluted earnings per share                      $      0.64    $     (0.17)    $      2.88    $      2.02
Dividends per share                             $       .46    $       .40     $      1.84    $      1.60

Selected Ratios (annualized)
Return on Average Assets                               1.11%          (.30%)          1.26%           .92%
Return on Average Equity                              12.30%         (3.41%)         14.08%         10.25%
Net Interest Spread                                    2.89%          3.05%           3.02%          3.10%
Net Interest Margin                                    3.37%          3.45%           3.45%          3.51%


Additional per share data:                       December 31,   December 31,
                                                     2005           2004

Shares outstanding                                2,955,455      2,955,455
Book value per share                             $    20.67     $    20.25