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

If for any reason you need to amend a previously filed tax return, you must use Form 1040X. Use this form if you reported incorrect information on your original return that affects your tax liability.

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

The file is in Adobe portable document format (PDF), which requires the use of Adobe Acrobat Reader.

To get a free version of Adobe Acrobat Reader software, go to the Adobe web site.

For more information, see our discussion on paying your taxes.