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 tax return. Form …

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.

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 that changed. …

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 correct …

Caution: In general, you can’t change your filing status from married filing jointly to married filing separately after the return due date. If you checked the MFS box, enter the name of your spouse …

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.

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 in which …

Dec 19, 2024 · What Is IRS Form 1040X? 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 …

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.