Michigan Estimated Payment Notices: What’s Going On

Glitch in Tax Payment Systems

If your phone and inbox have been lighting up with Michigan tax notices lately, you’re not alone.

There’s a growing issue with the Michigan Department of Treasury incorrectly flagging 2025 estimated tax payments as missing, even when those payments were made and cleared. We’ve now seen this across dozens of clients—same pattern, same numbers, same confusion.

What’s Happening with Michigan Estimated Payment Notices?

Taxpayers are receiving notices stating: “Estimated tax payments were not applied to their 2025 return.”

But here’s the kicker:

• The payments were made
• The amounts on the notice often match the exact total of estimates paid
• The system is treating those payments as if they don’t exist

In plain terms: Michigan’s system isn’t properly linking estimated payments to filed returns.

This Isn’t Isolated

This isn’t a one-off or a data entry issue.

• We saw 30–40 notices hit in a single weekend
• More are coming in daily
• Michigan Association of CPAs (MICPA) has confirmed they’re aware of the issue
• Treasury has paused sending additional notices while they work on a fix

That pause is helpful—but it doesn’t undo the notices already sitting in mailboxes.

What Clients Are Seeing

Most notices look something like this:

• Balance due = exact amount of estimated payments made
• No credit applied on the return
• No clear explanation of why payments weren’t recognized

From a client perspective, it feels like: “I paid… filed correctly… and now I owe the same amount again?” Reasonable reaction.

What Nerds Do (and Recommending)

Based on the latest update shared by MICPA after communication with Treasury, here’s the current best approach:

1. YOU MAY NOT NEED TO RESPOND RIGHT NOW

Treasury has indicated the estimated payments are accurately recorded and that no action is required at this time for the estimated-payment notice issue. Treasury plans to send corrected notices once the correction is implemented.

2. DOCUMENT WHAT YOU HAVE (JUST IN CASE)

Even if no action is required right now, it’s smart to keep your proof organized:

• Estimated payment confirmation numbers
• EFT/ACH confirmations or canceled checks
• Bank statements showing the cleared payments

If Treasury later requests support, you will be ready.

3. IF SOMETHING DOESN’T MATCH, VERIFY BEFORE ACTING

If you’re not sure whether a payment was actually made, or if the notice amount does not align with your records, that is the time to verify through Treasury’s services and/or contact channels.

What NOT to Do

• Don’t re-pay the balance just to make it go away
• Don’t assume the notice means your return was filed wrong.
• Don’t cash any unexpected Treasury check without verifying what it is (see note below).

Where Things Stand

Right now:

• Treasury knows there’s a problem
• Additional notices are temporarily paused
• Treasury plans to issue corrected notices, but an exact timeline has not been provided.

If you received a Michigan notice claiming your 2025 estimated payments weren’t applied even though you already paid them, you’re not crazy, and you’re definitely not alone. Per the MICPA’s update after speaking with Treasury, the payments are showing correctly in Treasury’s system and no action is required right now; Treasury plans to issue corrected notices once the issue is fully resolved.

Separate note: if you receive an unexpected refund check that appears tied to a Section 2210 underpayment penalty, Treasury is advising taxpayers not to cash it and to follow their instructions for returning it.