Amended Return
File Form 1040-X to change a return you already filed. Generally, to timely claim a refund on your amended return, Form 1040-X must be filed within 3 years after the date the original return was filed or within 2 years after the date the tax was paid, whichever is later. But you may have more time to file Form 1040-X if you live in a federally declared disaster area or you are physically or mentally unable to manage your financial affairs. See Pub. 556 for details.
You can file Form 1040-X electronically with tax filing software to amend Forms 1040 and 1040-SR. See IRS.gov/Filing/Amended-Return-Frequently-Asked-Questions for more information.
Use the Where’s My Amended Return application on IRS.gov to track the status of your amended return. It can take up to 3 weeks from the date you mailed it to show up in our system.