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Form W-9 is how a U.S. person gives their correct taxpayer identification number (TIN) — a Social Security Number or an Employer Identification Number — to someone who has to report payments made to them to the IRS. Businesses usually ask for it before paying a freelancer, contractor or vendor.
You fill it in when a payer asks for it, and you give it back to that payer. It is not sent to the IRS. People who are not U.S. persons generally use a Form W-8 (such as W-8BEN) instead.
Click each box and type: your name (Line 1), business name if different (Line 2), federal tax classification (Line 3), address (Lines 5–6) and your TIN in Part I. Then download the filled PDF and sign Part II.
No. You give it to the business or person who requested it. They keep it and use it to report payments to you.
No. The form is filled entirely inside your browser; the number you type never leaves your device.
Download the filled form, then add your signature with the Sign PDF tool — it also works entirely in your browser.
Doctor PDF is not affiliated with the IRS or USCIS. This page offers the official blank form, unchanged, and a private way to fill it in your browser. It is not legal or tax advice — always follow the official instructions.