Ohio Department of Taxation Ohio Department of Taxation
CAT Registration Inquiry
Registered CAT Taxpayers
Welcome to the Ohio Department of Taxation's CAT Registration inquiry web form.

To search for a specific CAT Taxpayer, please type the Name of the Business, or any portion of the name, select the type of search (Legal Name or Trade Name), then press the Search button.

When searching for a sole proprietor, you may need to enter the last name first or the first name first, depending on how the taxpayer registered with us.

Enter Name of Business: