Amended tax return letter sample

I received my refund, but I made a mistake on my return so the refund is more than I should have received. I haven't cashed the check. What should I do now?

Since the IRS didn't catch your mistake during processing, you should:

• File an amended return using Form 1040-X, Amended U.S. Individual Income Tax Return as soon as possible.
• Include any forms and/or schedules that you're changing and/or didn't include with the original return.
• Return the refund check with a letter of explanation. Write "Void" in the endorsement section of the check when you return it.
• Don't staple, bend, or paper clip the check.
• When your amended return has completed processing, the IRS will issue a new refund check.
• Allow 8 to 12 weeks for your amended return to be processed; however, in some cases, processing can take up to 16 weeks. For current processing status, check our processing status dashboard.