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Form 1040X
Amended Individual Income Tax Return
If you made a mistake on your federal income tax return, 1040X is the form you'll need. This form is for those that need to amend, or fix, their returns. There is only one version of 1040X, unlike the 1040 series of which there are 3 versions (1040, 1040A, and 1040EZ) or the 1040NR series of which there are 2 versions (1040NR and 1040NR-EZ). For more information on how to file 1040X see our Line-by-Line Guide.
Download Form 1040X
| Download Form 1040X |
Instructions:
| Download Instructions PDF |
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IRS Instructions, Guides and Publications
A one-stop shop of important IRS information to help you fill out your return.
