Supplier Certification (Substitute W-9) form (Adobe Acrobat format)
The Supplier Certification (Substitute W-9) form is a method of collecting tax information for the IRS and other information that the university is required to report. It can cost the university tax penalties or cause contract violations if we are unable to report this information in a timely fashion. University units can assist with supplier certification by requesting the supplier complete the form. Payments to the supplier will be held until completed form has been returned to the U-M Vendor Maintenance Team located at the Shared Services Center. Form can be found on the Shared Services website.