COVID-19 Updates: uc.edu/publichealth
Request for Taxpayer Identification Number and Certification
IRS Form W-9 is often used by individuals and business entities to certify their US Taxpayer Identification Number (TIN), and their status as a "US person" including US-based business entities.
For outside parties requesting a Form W-9 certifying UC's TIN and US status, click here.
For UC payees completing Form W-9 to certify their own TIN and US status, often upon request from UC, click here.