@NCperson wrote: "Box 8b - and I bet this is the problem - should be checked indicating you are non-residents; as I stated earlier, I do not see a way to tag one as a resident and one as a non-resident; the form simply is not set up that way," and "the only other comfort to be had is to call the State of MI revenue office and just ask, "hey, if my spouse is a non-resident and I am a resident, what box am I to check - 8a or 8b?"
From page 9 of the 2021 MI tax instruction booklet, regarding Line 8:
"If you and your spouse had a different residency status during the year, check a box for each of you."
And from the Line 8 Box on the MI-1040 form itself: "Check all that apply."
So @JimO2 should check both boxes 8a and 8b.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
