Tips and Peak Schedules
We're here to help! The Ohio Department of Taxation is located at 4485 Northland Ridge Blvd., Columbus, OH 43229. Our hours of operation are 8:00 a.m. to 5:00 p.m. Monday through Friday.
- Our agents are available through email at Email Us
- Low call volume from 8:00 a.m. - 10:00 a.m.
- The Department’s visitor center is open, by appointment only, during normal business hours (8:00 a.m. to 5:00 p.m., Monday through Friday). To make an appointment, please call 800-304-3211 during normal business hours or email us.
- Backpack Policy
Please be aware that volume can be high during peak tax filing season.
| Tax Type | Peak Calling Periods |
| Individual Income Tax | February 1 through April 30 |
| Sales Tax | 23rd of every month (highest call volumes on January 23rd & July 23rd) |
| Employer Withholding | 15th of every month |
| CAT | February 10, May 10, August 10, November 10 |
