What is the tax rate on a car purchase in Oklahoma?

Oklahoma charges a 3.25% motor-vehicle excise tax plus a 1.25% state sales tax on vehicles, for a combined 4.50% of the purchase price. Both apply to new and used vehicles bought from a dealer or private party.

Does a trade-in reduce my Oklahoma vehicle tax?

Generally no. Oklahoma's vehicle excise tax applies to the full value or purchase price and is not reduced by a trade-in allowance, unlike the general sales tax in many other states. This calculator taxes the full price.

Is the 1.25% sales tax separate from the excise tax?

Yes. Since the 2017 reform, Oklahoma adds a 1.25% state sales tax on vehicle purchases on top of the long-standing 3.25% excise tax. Together they make a combined 4.50% state tax on the price.

Do local cities and counties add sales tax on cars?

No. Oklahoma's vehicle tax is a flat statewide combination of excise and the 1.25% sales tax. Local city and county sales tax rates that apply to general purchases do not stack on top of a vehicle purchase.

What other costs do I pay at the tag agency?

Beyond the 4.50% tax, you pay the age-based annual registration (tag) fee and a one-time title fee. Use our Oklahoma vehicle registration fee calculator to estimate those separate charges.

Oklahoma Car Sales Tax Calculator

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Buying a car in Oklahoma means paying two state taxes on the purchase price: the long-standing motor-vehicle excise tax and, since 2017, a state sales tax on vehicles. This calculator combines both so you know exactly what you will owe at the tag agency.

How it works

Oklahoma applies a flat combined rate to the full purchase price:

Excise tax       = 3.25% × purchase price
State sales tax  = 1.25% × purchase price
Combined         = 4.50% × purchase price

Both taxes apply to new and used vehicles, and Oklahoma does not reduce the excise tax for a trade-in, so the tax is computed on the full agreed price. Local city and county sales taxes do not stack on a vehicle purchase.

Example

On a 30,000 dollar vehicle, the excise tax is 975 dollars (3.25%) and the state sales tax is 375 dollars (1.25%), for 1,350 dollars of total tax — the full 4.50 percent combined rate. With the price that is 31,350 dollars before the separate title and registration fees.

Notes

This estimate covers the purchase tax only. You will also pay the age-based annual registration (tag) fee and a one-time title fee at the tag agency. Verify current rates at the Oklahoma Tax Commission, oklahoma.gov/tax.