Can you clarify what the letter states and the reason for the demand of payment? If you had Alabama source income, taxes withheld on your W-2 for Alabama, and you filed an Alabama resident return, then you did not have to file an Illinois return. However, if you had Illinois source income, then you would need to file a nonresident return for Illinois. An address on the 1040 would not warrant a demand for payment letter from Illinois. Please explain further so we can assist you.
@mschleckser
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
