Yep...MO will still "calculate" a tax on all of it.
BUT, MO will you allow you a tax credit for the taxes you paid to IL (at least up-to the tax MO would have charged if MO taxes it lower than IL)
BUT #2: You need to:
a) fill in ALL your Federal income, deductions & credits first...every scrap.
b) Then you must prepare the IL non-resident tax return second...so that the exact IL tax gets determined (any IL withholding done was only a required estimate...it may not be everything) ...but in the end IL can only tax the IL income.
c) Then at the very LAST, you prepare the MO resident tax return....somewhere in there the MO questions will ask about taking a credit for the taxes you paid to another state (IL).....
It has to be prepared in that order.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
