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Individual Taxpayer Identification Number (ITIN)
The IRS issues ITINs to individuals who need a U.S. tax identification number but aren't eligible for a Social Security number — allowing both resident and nonresident aliens to comply with U.S. tax law.
Who needs an ITIN
Anyone with a federal filing obligation but no SSN.
Nonresident Aliens
Filing a U.S. tax return without SSN eligibility.
Resident Aliens
Based on days present in the U.S. under the substantial presence test.
Dependents & Spouses
Of U.S. citizens or resident aliens.
Visa Holders
Nonresident visa holders with a U.S. filing requirement.
Treaty Benefit Claimants
Those claiming benefits under a U.S. tax treaty.
Good to know
What an ITIN does — and doesn't — do.
Renewal
ITINs expire after three consecutive years without use on a federal return — renew early to avoid delays.
No Work Authorization
An ITIN doesn't authorize employment, provide Social Security eligibility, or qualify dependents for the earned income credit.
Filing Threshold
A return is required once net self-employment earnings reach $400 or more.
Need an ITIN application or renewal?
Book a free 15-minute discovery call and we'll walk you through the process.