How to fill out a W-9 online and sign it

Get the current form from the IRS

Download Form W-9 from the IRS website at irs.gov/pub/irs-pdf/fw9.pdf. The IRS page for the form lists the March 2024 revision as current. If a business sent you a W-9, check the revision date printed in the top left corner matches.

The IRS's W-9 comes with fillable boxes, so you can usually type straight into them. If a box doesn't respond, choose Text and type on the line instead.

Fill in the W-9 here

1. Open the W-9 with the button above. It opens in your browser; we never receive it.
2. Place the $1.99 hold when you're ready to type. Nothing is charged until you download.
3. Click line 1 and type your name as it appears on your tax return. If you have a business name that is different, put it on line 2.
4. Tick one box on line 3a for your federal tax classification. The instructions printed with the form explain each box.
5. Type your address on lines 5 and 6.
6. In Part I, type your taxpayer identification number: your Social Security number (or ITIN) in the first set of boxes, or your EIN in the second. Use one, not both.
7. In Part II, choose Sign and click on the signature line. Then choose Date and click next to “Date”.
8. Press Download. We charge the $1.99 and your browser saves the signed W-9.

Lines 3b, 4 and 7 apply only in some situations. The instructions printed after the form say when. If you're unsure about your tax classification or an exemption code, ask the business that sent the request or a tax professional.

Send it to whoever asked

Give the signed W-9 to the business or person who asked for it, not to the IRS. Keep a copy for your records. If you want your answers to stop being fillable boxes, tick “Lock the answers” when you download.