You will want to file a Part Year return for Michigan and Illinois. Because Michigan and Illinois are reciprocal states, you can file and pay income to you resident state if you earn it in a nonresident state. You will want to include on the Illinois return all the income you both earned January to November, On the Part Year Michigan return, include the income you earned in December. You will probably want to use either the percentage method (92% to Illinois, 8% to Michigan) or find the paystub to get the amounts earned in December. @eversmile_93
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
