Michigan Income Tax Extension

Q: How can I file a MI Tax Extension?

Here are the different options to file a MI Extension:Pay all or some of your Michigan income taxes online via: Michigan e-Payments.You will either have to submit a MI tax return or extension by the tax deadline.Complete Form 4, include a Check or Money Order.

Q: What are the penalties for filing late?

The late filing penalty is 5% of the amount due, calculated from the original due date of your tax return for the first two months. An additional 5% for each month or partial month that the amount remains unpaid, after accounting for any payments or credits made by the original due date. The maximum penalty is capped at 25% of the total amount due.Note: a tax extension is an extension to file, not payments owed.

How to file a Michigan Tax Extension. Points to consider when to prepare extensions.

Extension Situation

Extension Suggestion

Michigan Tax Refund

Option 1: If you don't owe Michigan income taxes and don't anticipate a tax refund by the deadline, you don't need to file a Michigan tax extension. However, if you're expecting a refund, you'll need to file or e-file your Michigan tax return to receive it.

Option 2: If you've already filed a federal extension and don't owe Michigan income taxes or expect a refund, your federal extension will automatically apply to your Michigan state taxes. There's no need to file a separate Michigan Form 4 extension.

Owe Michigan Taxes

Option 1: Pay all or some of your Michigan income taxes online via: Michigan e-Payments.

Option 2: If you owe MI income taxes, you will either have to submit a MI tax return or extension by the tax deadline in order to avoid late filing penalties. You can only eFile and IRS tax extension, but not a Michigan extension. The tax extension will only avoid late filing penalties until the October deadline.
Note: Unless you pay all your Taxes or eFile your tax return by the October deadline, the late filing penalties will start again after that deadline.

Option 3: Complete Form 4, include a Check or Money Order, and mail both to the address on Form 4. Important: Even if you filed an extension, you will still need to file your MI tax return either via eFile or by paper by the October deadline.

Michigan Income Tax Calculator

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Michigan Tax Deadlines

All Michigan Tax Income Tax Return Deadlines

Tax Penalties

Important: If you owe Michigan and/or IRS income taxes and do not file an IRS and Michigan tax return or extension by the Tax Due Date, you will be subject to IRS and MI late filing penalties. Estimate IRS late filing, payment penalties. In addition, if you do not pay your taxes by the Tax deadline, you will be subject to late tax payment penalties. Filing an extension on time will ONLY eliminate the late filing penalties but not the late tax payment penalties. Late filing penalties are generally higher than late payment penalties, thus file something on time even if you can't pay anything on time!

IRS Tax Extensions

e-File a Tax Extension for free on eFile.com. Here are instructions on whether you should consider a Tax Extension or not.

Taxpert^®

Discuss your extension questions and goals with a Taxpert for free and we will guide you through the process.

Frequently Asked Questions

What is a MI tax extension?

A Michigan tax extension grants a 6 months extension from the original tax due date.

When to file a MI Tax Extension?

You will need to e-file a tax extension on or before April 15, 2025.

Do I need to file if I receive a tax refund?

No, if you do not anticipate owing Michigan income taxes or you will receive a MI tax refund by the tax deadline, you are not required to file for a MI tax extension.

How can I file a MI Tax Extension?

Here are the different options to file a MI Extension:

Pay all or some of your Michigan income taxes online via: Michigan e-Payments.
You will either have to submit a MI tax return or extension by the tax deadline.
Complete Form 4, include a Check or Money Order.

Do I need to file a separate MI Tax Extension form?

No, if you have eFiled a federal extension and do not owe Michigan income taxes by the tax deadline, your accepted federal extension will serve as your state extension.

What are the penalties for filing late?

The late filing penalty is 5% of the amount due, calculated from the original due date of your tax return for the first two months. An additional 5% for each month or partial month that the amount remains unpaid, after accounting for any payments or credits made by the original due date. The maximum penalty is capped at 25% of the total amount due.

Note: a tax extension is an extension to file, not payments owed.

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