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.

What identification number do I use if I do not have a FEIN or a SSN?

You must have a FEIN or SSN to register for the CAT. If you do not have either, please contact the CAT division.