中文 Get my plan

Form W-7: how to file the Application for IRS Individual Taxpayer Identification Number (ITIN)

For people who need a US tax number but can't get a Social Security number. File Form W-7 with a US federal tax return unless an exception applies, and either mail it with original or certified identity documents, use a Certifying Acceptance Agent, or book an IRS Taxpayer Assistance Center.

Internal Revenue ServiceUS federalUpdated October 15, 2026

Agency
Internal Revenue Service
Where it applies
US federal
How it's filed
Paper form, mailed
Fee
Free
How long it takes
Allow 7 weeks for the IRS to send the application status.

The form, line by line

LineWhat goes there
Application typeApplication typeApply for a new ITIN / Renew an existing ITIN
ReasonReason you're submitting Form W-7a. Nonresident alien required to get an ITIN to claim tax treaty benefit / b. Nonresident alien filing a U.S. federal tax return / c. U.S. resident alien (based on days present in the United States) filing a U.S. federal tax return / d. Dependent of U.S. citizen/resident alien / e. Spouse of U.S. citizen/resident alien / f. Nonresident alien student, professor, or researcher filing a U.S. federal tax return or claiming an exception / g. Dependent/spouse of a nonresident alien holding a U.S. visa / h. OtherBox a also needs box h. With b, c, d, e, f or g, a U.S. federal tax return goes with the form unless an exception applies.
dIf d: relationship to the U.S. citizen/resident alien
d, eIf d or e: name of the U.S. citizen/resident alienTheir SSN or ITIN is written by hand on the form after the name; Placetta doesn't print it.
hIf h: the exception or other reason (see instructions)Also needed with box a, and with box f when claiming an exception: write the exception the instructions name.
a, fTreaty country
a, fTreaty article number
1aFirst nameAs on the passport.
1aMiddle name
1aLast name
1bName at birth, if different (first, middle, last)
2Mailing address: street, apartment or rural route number; then city, state or province, country and ZIP or postal codeFor a P.O. box, see the instructions.
3Foreign (non-U.S.) address: street; then city, state or province, country and postal codeNot a P.O. box. Put the street first, then a semicolon or new line.
4Date of birth (mm/dd/yyyy)
4Country of birth
4City and state or province of birth (optional)
5SexMale / Female
6aCountry(ies) of citizenship
6bForeign tax I.D. number (if any)
6cType of U.S. visa (if any), number, and expiration date
6dIdentification document submittedPassport / Driver's license/State I.D. / USCIS documentation / OtherFor Other, write "Other: " and the document.
6dIssued by
6dDocument number (written by hand)The applicant writes the number by hand on the form; Placetta doesn't print it.
6dDocument expiration date (mm/dd/yyyy)
6dDate of entry into the United States (mm/dd/yyyy)
6eHave you previously received an ITIN or an IRS Number (IRSN)?No/Don't know / Yes
6fITIN and/or IRSN (written by hand)The applicant writes the number by hand on the form; Placetta doesn't print it.
6fName under which it was issued (first, middle, last)
6gName of college/university or company
6gCity and state
6gLength of stay
Sign HereApplicant's phone number
Sign HereName of delegate, if applicable
Sign HereDelegate's relationship to applicantParent / Power of attorney / Court-appointed guardian

Official links

Checked against the agency's own page.

Questions people ask

Get the plan for your exact address

This guide covers the city. Your exact address decides the county, the health district and the zoning. Placetta maps every filing for it, fills the official forms from your details, adds the deadlines and puts them up for your approval.

  • The full list for your address, in filing order
  • The official forms, filled line by line
  • Renewal and inspection reminders

Free to start, no card needed. We only use your email to reach you.

Get my plan