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Amended Returns & Form 1040X

Question: I received a refund that is more than I should have received because I made a mistake on my return. I have not yet cashed this check. What should I do now?

Answer:

Many mistakes are corrected in processing and a letter of explanation is mailed at the time the refund is issued.

If the mistake was not corrected in processing, you need to:

  • File an amended or corrected return using Form 1040X (PDF), Amended U.S. Individual Income Tax Return, as soon as possible.
  • Include copies of any schedules that have been changed or any Form(s) W-2 (PDF) you did not include.
  • If you return the refund check with a letter of explanation, a refund in the correct amount will be issued when the IRS processes the amended return.
  • Write "Void" in the endorsement section of the check, and return the check with a letter of explanation to the Service Center where you file your amended return as soon as possible to minimize the interest charges.
  • Allow the IRS 8-12 weeks to process the amended return.

Additional Information:


Category: IRS Procedures
Subcategory: Amended Returns & Form 1040X

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The OMB number for this study is 1545-1432.
If you have any comments regarding this study, please write to:
IRS, Tax Products Coordinating Committee
SE:W:CAR:MP:T:T:SP
1111 Constitution Avenue NW
Washington, DC 20224