How to Prepare, File A Michigan Tax Amendment

Instructions, Resources on how to prepare and e-File Michigan Tax Returns or how to prepare an Extension and/or previous Year Tax Returns

Prepare, eFile a 2019 MI + IRS Tax Return: Detailed eFile.com Service Overview

Prepare only a MI State Return without an IRS return. Details

Step by Step instructions on how to only Prepare and Download - not eFile - State Returns on eFile.com.

File a 2019 Michigan Tax Amendment

You cannot eFile a MI Tax Amendment anywhere, except mail it in. However, you can prepare it here on eFile.com.
Option 1: Sign into your eFile.com account, modify your Return and download/print the MI Form MI-1040 under My Account. Check the "Amended Return" box, sign the form, and mail it to one of the addresses listed below. Complete Schedule AMD and attach it to your Form MI-1040.
Option 2: If you don't have an eFile.com account follow the step by step instruction on how to prepare a tax return/amendment.
Option 3: If you want to do the math on your own paper return then complete, sign MI Form MI-1040 (to be added) and Schedule AMD - Print, Mail the Form to MI Tax Department to:
No Payment Attached or Receiving Refund Amendment Return:
Michigan Department of Treasury
Lansing, MI 48956
Payment Attached Amendment Return:
Michigan Department of Treasury
Lansing, MI 48929

MI Tax Amendment Form MI-1040
This Form can be used to file a: Tax Return, Tax Amendment, Change of Address. Check the "Amended Return" box on the Form.

Step 1: Download, Complete Form MI-1040 for the appropriate Tax Year below.
Step 2: Download, Complete Schedule AMD and attach it to your Form MI-1040. 
Step 3: Sign, Mail Your Amended Return to one of the addresses listed above

Tax Year 2019 only: Prepare online on eFile.com until Oct. 15, 2020. When done Print, Sign and Mail in - not eFile - Your Tax Amendment, Address Change, etc.

After Oct. 15 Prepare, Print, Sign and Mail-In - see address above - your Tax Year 2019 - Form MI-1040 (to be added) and Schedule AMD

How to correct a rejected Tax Return

If your MI Tax Return was rejected by the MI Tax Agency - not eFile.com - instructions on how to correct a rejected Michigan Tax Return.

For all Tax Years prior to 2019 Prepare, Print, Sign and Mail-In - see addresses above - your Tax Amendment as soon as possible. For Tax Year 2017, select the 2017 Tax Year Form MI-1040 and attach Schedule AMD to your MI-1040. For Tax Years 2012-2016, complete Form MI-1040X-12. If you need to file an amendment for Tax Years 2011 and prior, use Form MI-1040X. You will also file an IRS Tax Amendment Form 1040X.

Tax Year 2019 - Form MI-1040 (to be added)
Tax Year 2018 - Form MI-1040
Tax Year 2017 - Form MI-1040
Schedule AMD
Form MI-1040X-12
Form MI-1040X

Check Your MI Tax Amendment Status

1. Call the MI Department of Revenue at 800-649-3777.
2. Contact the MI Department of Revenue

Michigan Refund Deadlines

A. Four years from the due date of the original tax year return, including valid filing extensions.
B. One year from the final determination of the amended federal return or federal change, whichever is later, provided that the allowable refund is not more than the decrease in Michigan tax attributable to the federal change or correction.
C. Two years from the payment of an assessment, provided the amended return raises issues relating only to the prior assessment and the refund does not exceed the amount of tax paid on the prior assessment.
D. Two years from the filing of an amended Michigan return resulting in the payment of additional tax, provided that the current amended return raises issues relating solely to the prior amended return and that the refund does not exceed the amount of the tax payment made as a result of the prior amended return.
Additional Michigan Tax Income Taxes Deadlines

Michigan Income Tax Penalties

Find out how Michigan Late Filing and Late Payment Penalties are calculated.
For IRS Tax and Late Filing Penalties we have an easy to use tool: The PENALTYucator.

File an IRS Tax Amendment by Tax Year

Instructions on how to prepare an IRS Tax Amendment on eFile.com, however the IRS does not accept Tax Amendments electronically.