Form W-9W-9
Gives a US business your taxpayer ID so they can report what they pay you.
Edition 03/2024
Version last read from the agency on September 28, 2026
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About Form W-9
Who fills it in
The person or business that is being paid fills in Form W-9 when a client, bank or other payer asks for it. It gives the payer your correct taxpayer identification number — a Social Security number or an employer identification number.
Where it goes
Give the completed form back to the person who asked for it. It is not sent to the IRS: the payer keeps it and uses your number on the information return they file, such as Form 1099-NEC.
When
Payers usually ask before the first payment, so the name and number they report are right from the start.
Watch out for
- Use the 03/2024 revision, the current one on the IRS page.
- Check the name and number against your own tax documents before you sign.
- The form carries your Social Security or employer number, so send it the way you would send any document with that number on it. You can add a password before emailing it.
Read from the agency’s pages on October 8, 2026: IRS — About Form W-9
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Related documents
All forms- Form W-4W-4Tells your US employer how much tax to withhold from each paycheck.
- Form 10401040The main US individual income tax return, filed once a year.
- Form 1099-NEC1099-NECReports what a business paid a contractor during the year.
- Form W-2W-2The wage and tax statement an employer sends each employee.
- Form 4506-T4506-TRequests a transcript of a past US tax return, often for a loan.
- Form 88218821Authorizes someone to see your US tax information.