United States · IRS
Form 1040-X — Amended U.S. Individual Income Tax Return
Form 1040-X corrects a previously filed Form 1040 — for missed income, overlooked deductions or a changed filing status.
Fill 1040-X now — free to try
Filled entirely on your computer. Your SSN and personal details are never uploaded.
Who needs 1040-X?
Taxpayers who discovered an error or omission on a return they already filed and need to amend it.
How to fill it with DocsArc
- Open 1040-X in the DocsArc workspace with one click above.
- Click any field and type — form fields are detected automatically, and you can add text anywhere.
- Sign it if needed: draw, type or upload your signature, with an automatic date line.
- Save or print. The finished PDF never left your computer.
Frequently asked questions
How long do I have to amend?
Generally within 3 years of filing the original return or 2 years of paying the tax, whichever is later.
Can 1040-X be e-filed?
Recent years can be amended electronically through software; paper filing remains available for all years.
Always verify you have the current version: official IRS page
This U.S. federal form is in the public domain. DocsArc is an independent tool and is not affiliated with IRS.