REGULATORY CAPITAL (Tables)

3 Months Ended

Mar. 31, 2013

REGULATORY CAPITAL

Schedule of actual and required capital amounts and ratios

					Required for
	Actual				Adequate Capital				To Be Well Capitalized
March 31, 2013	Amount		Ratio		Amount		Ratio		Amount	Ratio
MainSource Financial Group
Total capital (to risk-weighted assets)	$	299,513	18.1	%	$	132,669	8.0	%	N/A	N/A
Tier 1 capital (to risk-weighted assets)	278,833		16.8		66,334		4.0		N/A	N/A
Tier 1 capital (to average assets)	278,833		10.4		106,953		4.0		N/A	N/A
MainSource Bank
Total capital (to risk-weighted assets)	278,743		17.0	%	131,469		8.0	%	164,336	10.0	%
Tier 1 capital (to risk-weighted assets)	258,063		15.7		65,734		4.0		98,602	6.0
Tier 1 capital (to average assets)	258,063		9.7		106,153		4.0		132,691	5.0

					Required for				To Comply with
	Actual				Adequate Capital				Regulatory Agreement
December 31, 2012	Amount		Ratio		Amount		Ratio		Amount	Ratio
MainSource Financial Group
Total capital (to risk-weighted assets)	$	296,714	17.8	%	$	133,549	8.0	%	N/A	N/A
Tier 1 capital (to risk-weighted assets)	275,707		16.5		66,774		4.0		N/A	N/A
Tier 1 capital (to average assets)	275,707		10.4		106,077		4.0		N/A	N/A
MainSource Bank
Total capital (to risk-weighted assets)	283,303		17.2	%	132,052		8.0	%	165,065	10.0	%
Tier 1 capital (to risk-weighted assets)	262,527		15.9		66,026		4.0		99,039	6.0
Tier 1 capital (to average assets)	262,527		9.9		106,077		4.0		132,596	5.0