It is possible that you did not take out enough IL taxes and the way IN calculates the credit (it is NOT for the entire amount of taxes you paid to IL), you can still owe IN money. This is especially true if you are now getting hit by county taxes.
We always seem to pay more $ to IL for taxes. IN will calculate a credit for taxes paid to other states (IL) that is about a $1k less than what we actually paid, and THEN we still will owe IN about $1K. So we now pay about an extra $2K between paying IL more and IN giving credit for less than IL taxes paid.
It is nuts.
