IRS Form W‑7 – Application for an Individual Taxpayer Identification Number (ITIN)

Form W‑7 is the official Application for an Individual Taxpayer Identification Number (ITIN) issued by the United States Internal Revenue Service (IRS). Taxpayers who are not eligible for a Social Security Number but need a federal tax identification number use this form.

What Is IRS Form W‑7?

The W‑7 form allows foreign individuals, residents, and certain dependents to obtain an ITIN so they can file U.S. tax returns, claim treaty benefits, or be listed on a tax return. The PDF is fully fillable, but editing it locally can be cumbersome.

Why Use Formize’s Fillable PDF?

• Instant online filling – No need to download, install a PDF editor, or print the form.
• Secure cloud processing – Your data stays encrypted while the Formize PDF Filler loads.
• Auto‑save and review – Make changes, preview the completed document, and download a final PDF ready for mailing.

Step‑by‑Step Guide to Complete the Form Online

Follow the simple steps below to fill out Form W‑7 directly on this page.

Common Mistakes & Tips for a Successful Submission

Avoid these pitfalls to prevent delays:

• Do not leave any required field blank – the online filler will highlight missing items.
• Ensure the name on the form matches the identification document exactly.
• Attach a clear, legible copy of the supporting document (passport, national ID, etc.).
• Sign the form electronically if your PDF viewer allows it; otherwise, print, sign, and scan.

Where to Send Your Completed Form

After you download the finished PDF, mail it with the required documentation to:

Or submit through an IRS-authorized Acceptance Agent.