MarilynG1
Expert Alumni

Get your taxes done using TurboTax

Reducing your tax liability in Missouri would not change your Federal taxable income (which is where Illinois starts their calculations) so I don't believe that would help with your IL taxes.

 

You could go back into your prior year returns (like your going to 'Amend') and see if it changes your IL taxes. 

**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"