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 …

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 …

Generally, if you are amending a return for the current year, you can e-file Form 1040-X. If you need to file an amended return for a supported prior year, you will need to paper-file. When mailing a Form …

Feb 7, 2022 · Here’s a look at what tax Form 1040x is, when you might need it, and how to file an amended tax return in the US.

Oct 24, 2025 · All of these errors and more can be corrected simply by filing an amended tax return using Form 1040-X. [1] Don't use this form to correct typos or mathematical errors — the IRS will fix …