I have this problem in reverse. Full time WI resident but earned money in IL (and employer withheld IL tax). I know that I need to get this fixed for the future. But when filling out state taxes, IL is not showing a refund for what they withheld and WI is showing a balance due. Basically, I am being double taxed on that income by the states. How do I reflect a change to get a refund of the IL money withheld so that I can pay WI?
