Information about Form 1040-X, Amended U.S. Individual Income Tax Return, including recent updates, related forms and instructions on how to file. Use Form 1040-X to file an amended …

Nov 1, 2025 · Form 1040-X lets you fix certain errors, claim missed deductions or credits, and report forgotten income. You don’t need to redo your entire return—just update the numbers …

Learn what an amended tax return is, how to file Form 1040X step-by-step to correct information on your original tax return, and see how H&R Block can help.

Mar 16, 2025 · What Is Form 1040-X, Amended U.S. Individual Income Tax Return? The 1040-X, Amended U.S. Individual U.S. Income Tax Return is a form used by taxpayers who need to …

Aug 7, 2025 · If you have made a mistake on your tax return though, fear not: you can usually file an amended return, known specifically as Form 1040x to correct any mistakes.

Use Form 1040-X to correct a previously filed Form 1040, 1040-SR, or 1040-NR, or to change amounts previously adjusted by the IRS. You can also use Form 1040-X to make a claim for a …

4 days ago · IRS Form 1040X is the Amended U.S. Individual Income Tax Return form. It’s what taxpayers use when they need to make changes to a personal income tax return they’ve …

When mailing a Form 1040-X, attach all supporting documentation (e.g., corrected W-2s, 1099s). Contact the IRS at (800) 829-1040 with any questions. Payments, Refunds, and Penalties.

May 20, 2024 · With this form you can correct errors, include previously omitted information or adjust a return based on changes in income, deductions or credits. Here are some situations …

Nov 1, 2025 · If you made a mistake or missed something on your latest tax return, learn how to amend a tax return and how to file a 1040-X.