Tax & ID
ITIN Application (IRS W-7)
Get a taxpayer ID without a Social Security number
Typical timeline
7-11 weeks
Category
Tax & ID
Who qualifies
People who must file U.S. taxes or are dependents/spouses but cannot get an SSN.
The step-by-step roadmap
- 1
Confirm you need an ITIN
You must file taxes or be listed on a return and be ineligible for an SSN.
Watch out: Do not apply if eligible for an SSN.Common rejection reason: Eligible for SSN. - 2
Prepare tax return
Most W-7s must be attached to a federal tax return.
Watch out: Mail them together.Common rejection reason: No tax return attached. - 3
Get identity documents certified
Original passport or certified copies, or use a Certifying Acceptance Agent.
Watch out: Do not mail originals unless needed.Common rejection reason: Uncertified copies. - 4
Mail W-7 packet to IRS
Send to the IRS ITIN Operation address.
Watch out: Keep copies.Common rejection reason: Incomplete W-7.
Documents you'll need
Form W-7
Application for ITIN.
Federal tax return
Attached unless an exception applies.
Passport (original or certified)
Proves identity and foreign status.
Supporting documents
Birth certificate for dependents, U.S. residency proof.
Ready to start?
Run the free eligibility check first, then get your personalized roadmap and document checklist.
Check my eligibilityFees and timelines are as published by the relevant agency and may change — verify before filing. This guide is general information, not legal advice.