You must file an amended Minnesota return on Form M1X if any of these apply:
- An error is discovered on your client’s Minnesota return
- The IRS made changes to your client’s federal return
- You amend your client’s federal return
What should I know about amending Minnesota returns?
- Each tax year has its own amended tax return form.
- Generally, your clients must file amended returns within 3½ years of the due date of the original return.
- If your client filed as Married Filing Jointly, you cannot change the filing status to Married Filing Separately after the return’s due date.
- If changes require an additional schedule or form, or if a schedule or form changes, attach it to the amended return.
- If both the original and amended returns result in a refund, wait until your client gets their original refund before filing the amended return.
- Review our Amending a Return in Special Circumstances page if your client is divorced or filing a protective claim.
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NEW! You cannot choose to receive advance payments of the Child Tax Credit on an amended return.
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NEW! To add the Renter’s Credit, file Form M1X and include Schedule M1RENT and a copy of the CRP. Do not mail a loose M1RENT or CRP without Form M1X.
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NEW! Use Form M1PRX to file amended property tax refund returns for homeowners.
Can I file a Minnesota amended return electronically?
No. After careful consideration, we decided not to offer electronic filing of the M1X for tax year 2024.
For more details, see our Amending an Income Tax Return page.
Questions?
Contact us.
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