Question 1

Do I send Form W-9 to the IRS?

Accepted Answer

No. The form itself says to give it to the requester and not to send it to the IRS. The requester keeps it on file and uses it to prepare information returns such as Form 1099-NEC.

Question 2

Is my SSN or EIN uploaded when I fill out the W-9 here?

Accepted Answer

No. The PDF is filled and signed inside your browser. Your entries are kept only in this tab’s session storage so a refresh does not lose them, and they are cleared when the tab closes.

Question 3

Should I enter an SSN or an EIN?

Accepted Answer

Enter one, not both. Individuals generally use their social security number; other entities use their employer identification number. Sole proprietors and disregarded entities should read the Part I instructions on the form.

Question 4

Which revision of Form W-9 is this?

Accepted Answer

This is the March 2024 revision published at irs.gov/FormW9. The remaining pages of the PDF contain the official IRS instructions.

Form W-9: Request for Taxpayer Identification Number and Certification

Frequently asked questions