Accounting | Controller's Office This 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. View / Download PDF PDF Preview: (Viewing PDFs requires browser plugin support and/or Adobe Acrobat Reader) <p>It appears your Web browser is not configured to display PDF files. No worries, just <a href="/sites/default/files/forms/accounting-blanket_certificate_of_exemption.pdf">download the file.</a></p>