Get a Social Security number or an ITIN
The SSN identifies you for work and taxes; if you can't get one, the IRS issues an ITIN for taxes.
Cost: SSN: free. ITIN: free at the IRS and VITA; acceptance agents charge a fee
Time: SSN card: 5–10 business days after approval
What you need
- SSN: documents proving age, identity and citizenship or immigration status
- ITIN: Form W-7 and a federal tax return (unless an exception applies)
- ITIN: original or certified documents proving foreign status and identity
Step by step
- SSN: start the application online, then bring your documents to a Social Security office
- SSN: receive your card by mail
- ITIN: complete Form W-7 and attach it to your tax return
- ITIN: mail the package to the IRS in Austin, or apply in person at a Taxpayer Assistance Center, VITA site or acceptance agent
Where to apply
SSA: request a number for the first time · ssa.gov
IRS: how to apply for an ITIN · irs.gov
The app helps with
Tips to get it right the first time
- Applying for an ITIN in person lets you get most documents authenticated and returned on the spot.
- Appointments at Taxpayer Assistance Centers can take several weeks.
- Some noncitizens can get an SSN only if they work, study or have a valid non-work reason.
Save the checklist in the app and tick items off as you gather them.
Reviewed on October 19, 2026 · source: irs.gov. Requirements and costs are for reference and may change without notice: confirm them with the official source before you go. We are not affiliated with any institution.