Internal Revenue Service (IRS) · United States

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Form W-7, Application for IRS Individual Taxpayer Identification Number (ITIN)

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Quick answer

Form W-7, Application for IRS Individual Taxpayer Identification Number (ITIN), is the IRS form used to apply for or renew an ITIN — a nine-digit tax processing number for people who must file U.S. taxes but are not eligible for a Social Security number. It is completed by nonresident and resident aliens, their spouses, and dependents. JustFill lets you fill the official W-7 PDF online for free.

Form
Form W-7
Issued by
Internal Revenue Service (IRS)
Country
United States
Cost to fill
Free

What is Form W-7?

Form W-7 is the IRS application for an Individual Taxpayer Identification Number (ITIN), a nine-digit number issued to people who have a U.S. tax filing or reporting requirement but cannot get a Social Security number. This includes nonresident aliens claiming a tax treaty benefit, resident aliens filing a return based on days present in the U.S., and the spouses and dependents of U.S. citizens or resident aliens. The same form is used both to apply for a new ITIN and to renew an existing one. You generally must attach it to a federal tax return along with original or certified identity documents, unless you meet one of the listed exceptions. With JustFill you can fill the official W-7 PDF online for free — the AI detects each field so you can type or dictate your answers, it works on scanned copies, and you never need Adobe Acrobat.

Download the Form W-7 form PDF — free

The official Form W-7 (Rev. December 2024) and its separate instructions are free to download from irs.gov. JustFill opens that same PDF in your browser so you can complete it without Adobe Acrobat.

Get the official Form W-7 PDF from Internal Revenue Service (IRS)

Who fills out Form W-7?

  • Nonresident aliens who need an ITIN to claim a reduced withholding rate under a U.S. tax treaty.
  • Resident aliens filing a U.S. federal tax return based on the number of days present in the United States.
  • Spouses of U.S. citizens or resident aliens who need a taxpayer number to be claimed on a joint return.
  • Dependents of U.S. citizens or resident aliens being claimed for tax purposes.
  • Nonresident alien students, professors, or researchers filing a return or claiming an exception.

Field-by-field breakdown

What each section of Form W-7 asks for. JustFill’s AI will detect these fields automatically when you upload the PDF — review the breakdown below so you know what to enter.

Application type

Check whether you are applying for a new ITIN or renewing an existing ITIN.

Reason you are submitting Form W-7 (boxes a–h)

Check the one box that matches your situation, from nonresident alien claiming a treaty benefit (a) through dependent/spouse and 'other' (h).

Line 1a / 1b — Name

Your full legal name (1a) and, if different, your name at birth (1b).

Line 2 — Applicant's mailing address

Street, city or town, state or province, country, and ZIP or postal code where the IRS can reach you.

Line 3 — Foreign (non-U.S.) address

Your complete address in your home country; a P.O. box is not allowed here.

Line 4 / 5 — Birth information and gender

Date of birth, country of birth, optional city/state of birth, and male or female.

Line 6 — Other information (6a–6g)

Country(ies) of citizenship, foreign tax ID, U.S. visa details, identification documents submitted, any prior ITIN/IRSN, and school or employer details.

Sign Here

Signature of the applicant (or delegate), date, and phone number, signed under penalties of perjury.

Common mistakes to avoid

  • 1Checking more than one reason box (a–h) instead of the single box that applies, which delays processing.
  • 2Sending photocopies of identity documents rather than the required originals or certified copies, causing rejection.
  • 3Forgetting to attach the federal tax return the ITIN is needed for, when no exception applies.

How JustFill helps you complete Form W-7

AI field detection

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Frequently asked questions

Yes. Form W-7 is a free public-domain IRS form, and JustFill lets you fill it online for free with no subscription required to complete it.
Download the official PDF from irs.gov, or open it directly in JustFill, which loads the same IRS form in your browser so you can start typing right away.
Yes. JustFill's AI detects each field on the W-7 so you can type or dictate your answers online, then download the finished PDF — no Adobe needed.
It is used to apply for or renew an IRS Individual Taxpayer Identification Number (ITIN) for people who must file U.S. taxes but cannot get a Social Security number. JustFill helps you complete it accurately.
Yes. The same form handles both new applications and renewals — just check 'Renew an existing ITIN' at the top. JustFill makes that box and every field easy to complete.
The IRS generally requires original or certified identity documents with your W-7. JustFill helps you complete the form correctly so your document package is ready to mail or take to an acceptance agent.

Official source: Form W-7 on Internal Revenue Service (IRS)’s website

JustFill is an independent product and is not affiliated with, endorsed by, or sponsored by Internal Revenue Service (IRS) or any government agency. Always verify your completed form on the official version before signing or submitting.