Key Points ・You usually have up to 3 years to amend your tax return to fix errors. ・Use Form 1040-X to report the changes to the IRS. ・You must include any forms that changed (W-2, 1099, 1098-T). You ...

Editorial Note: We earn a commission from partner links on Forbes Advisor. Commissions do not affect our editors' opinions or evaluations. Each year, the IRS processes more than 150 million individual ...