
If you file your taxes early – like in February or March – you’ll have up to three years after the usual April filing deadline to submit Form 1040X. Taxpayers have up to three years to file an amended tax return (or up to two years after paying any taxes they owe). Once you file it, Form 1040X becomes your new tax return.Įstimate your federal income tax return with our free tax return calculator.

Within Form 1040X, you’ll only have to update the numbers and details that need to be changed. If you need to make adjustments to your tax return, you don’t have to completely start over. Specifically, you can use it to make corrections to IRS Forms 1040, 1040A, 1040NR and 1040NR-EZ. It’s what taxpayers use when they need to make changes to a personal income tax return they’ve already filed.
