Linked below is a letter explaining UW-Madison’s tax exempt status, including relevant ID numbers. This includes the tax exempt certificate and may be used to respond to vendor inquiries.
Download Sales Tax Exempt Status Letter/ Substitute W-9 – NetID login required
Related resources
- Universities of Wisconsin (UW System) Sales Tax Exempt Certificate – standalone document of the University tax-exempt certificate.
- UW–Madison Credit Letter – the University’s response to a request for a credit application. It also includes UW–Madison’s tax-exempt information and ID numbers (including DUNS and UEI numbers) and may be used to respond to vendor inquiries.