Does an ITIN expire? What to know before you file.

Yes, it can. If you or someone on your return files with an ITIN, check it before tax season, not during it.

When an ITIN expires

An ITIN that has not been used on a federal tax return for three years in a row expires. It must be renewed before you file with it again.

Who this catches out

• People who skipped a few years of filing.
• Spouses and dependents whose ITIN was issued once and not used since.
• Anyone who received a letter from the IRS about their ITIN and set it aside.

How to renew

Renewal uses the same form as a new application, IRS Form W-7, with identity documents. We can complete it with you and prepare the return that goes with it.

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