How do I amend my tax return?

TaxWarren TeamPublished April 25, 2026

Quick answer

File Form 1040-X to amend a previous year's return. You can do this online via tax software for recent years, or by paper. The IRS gives you 3 years from the original filing date (or 2 years from when you paid tax) to claim a refund.

How to amend a tax return: Form 1040-X process.

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