Frequently Asked Questions

The Ohio Department of Taxation has compiled a list of frequently asked questions covering many different categories.

To view the questions, click on the "Select Category" bar and then click on the category you are interested in.  A list of questions will appear pertaining to that category. Then click on the question you are inquiring about and the answer will appear.

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

By Internet:, 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