Assistance for Tax Professionals
- Hotline 1-855-728-1055 (toll-free)
- Problem Resolution Office
- Contact Us
- Publications, Statistics and Research Information
- Municipal Income Tax Links
- County Auditor's Association
- County Commissioner's Association
- State of Ohio
- Register Your Business by Telephone
- E-Registration - Register online through the Ohio Business Gateway (OBG) and obtain your license/registration immediately. NOTE: You must first register to use OBG
