About Form 1040-X, Amended U.S. Individual Income Tax Return

 

File Form 1040-X to do the following.

  • Correct Forms 1040, 1040-A, 1040-EZ, 1040-NR, or 1040-NR EZ.
  • Make certain elections after the prescribed deadline.
  • Change amounts previously adjusted by the IRS.
  • Make a claim for a carryback due to a loss or unused credit.

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