How Ohio taxes a car deal
- State tax rate
- 5.75%
- Local add-ons
- ≈ +1.5 pts by city/county
- Trade-in credit
- Yes — taxed on the difference
- Doc fee
- Capped at $398
Ohio's 5.75% state rate picks up a county 'permissive' tax of 0.25% to 2.25% depending on where you live, putting most buyers between 6.5% and 8% combined. The county of your residence sets the rate — dealers collect it based on where the car will be titled, so shopping across county lines doesn't change your tax.
Ohio is friendlier than most on trade-ins: the full trade value is deducted from the taxable price on dealer purchases, with no dollar cap, and — unlike several neighboring states — the credit applies to used-vehicle purchases at dealers, not just new ones. It does not apply to private-party sales, which is the standard catch. Doc fees are capped at the lesser of about $398 or 10% of the vehicle price, so the fee line stays proportionate even on cheaper cars.
One habit worth forming for Ohio deals: because the county spread is wide, confirm the exact permissive rate for your county rather than accepting a ballpark — the difference between 6.5% and 8% on a $35,000 car is over $500, which is real negotiating room being decided by a lookup table.
Every figure above was last verified against official Ohio sources in August 2026. Tax rules do change — the final word is always your paperwork and the DMV.