FAQs - Commercial Activity Tax (CAT)

How can I contact the Department of Taxation with questions about the CAT?

By Internet: tax.ohio.gov, then under the Contact menu, click on Email Contacts to e-mail your question

By telephone: 1-888-722-8829

By fax: 1-206-666-4462

By mail: P.O. Box 16158 Columbus, Ohio 43216-6158