Home Accounting Forms, Policies, Publications Resources related to accounting at Denison University. Blanket Certificate of ExemptionThis document provides evidence that Denison University is a non-profit organization and is not required to pay state sales tax in the state of Ohio. W-9 FormNew vendors must submit a W9 form to the Accounting Office to verify their federal tax identification number. More in Forms, Policies, Publications Global Denison Career Exploration Campus Academics Arts News & Events Events Campus Map Virtual Tour Forms, Policies, Publications