AF-INQUIRY: Filling Out a W-9

What is a W-9?

W-9 is a tax form called Request for Taxpayer Identification Number and Certification.

It is used for:

  • Certifying that the vendor has provided the correct taxpayer identification number
  • Certifying that the vendor is not subject to backup withholding
  • Certifying that the vendor is a US citizen or a US resident alien, partnership, corporation, company, association, estate, or domestic trust permitted to operate in the United States

Where do vendors submit their W-9?

Completed W-9 forms can be mailed to:

Department of Administration & Finance

Attn: Accounts Payable

227 W Jefferson Blvd, 12th Floor

South Bend, IN 46601


Who has to fill out a W-9?

All vendors paid by the City of South Bend must complete a W-9. The City of South Bend is required by the Internal Revenue Service to obtain these forms.

When does a W-9 need to be filled out?

A W-9 must be filled out and turned into the City of South Bend before payment can be issued.

How do I fill out a W-9?

A PDF version of the W-9 form can be found on the Internal Revenue Service website, along with instructions on filling out the form.

For 311:

Please direct vendors to Shannon Fredline, Accounts Payable Supervisor, ext 9621.