Tax Year 2025 Solutions Tracker

Issue: An error occurred in Notice of Adjustment letters dated between April 7 and April 28, 2026 related to estimated payments and credit carryforwards which affected the way information was displayed in these letters. We currently believe about 27,000 letters were sent to affected taxpayers.

Solution Tracker

April 23, 2026

Update: The date range of affected letters has been revised to only include letters dated between April 7 and April 28 instead of March 30 through April 17 as previously indicated.

April 22, 2026

Taxpayer prepayments are properly accounted for and are reflected correctly in Michigan Treasury eServices. Taxpayers do not need to take any action at this time. We expect corrected letters to be issued before these taxpayers' right to appeal expires. If a taxpayer disagrees with their notice and has not received a correction before the right to appeal has expired as stated on the original letter, they should exercise their right to appeal.

Issue: An increased number of denials and/or errors related to Form 4884 have been acknowledged.

Solution Tracker

March 16, 2026

It is important for filers who are filing with a 1099R Code 4 from a deceased spouse to complete Part 2 of the form and check the “Deceased Spouse” box in Part 3 of the form.

The form must include:

1. 1099R information
2. Deceased spouse’s Social Security number
3. Deceased spouse’s date of birth