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Oklahoma Car Sales Tax Calculator

The Oklahoma car sales tax calculator applies the state's combined 4.5% motor vehicle excise and sales tax to the price after your trade-in allowance. Enter your numbers to see the estimate.

Calculate Your Oklahoma Car Sales Tax

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The selling price on your buyer’s order.

What the dealer credits you.

State
OklahomaChange state

Condition

Oklahoma's excise and sales tax applies to the purchase price the dealer charges, which includes dealer fees.

Advanced options

Enter your own amounts where you know them. They replace our estimates.

Replaces the state estimate.

Replaces the state estimate.

Plates, inspections, add-ons.

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Estimated out-the-door price

$0.00

Enter a vehicle price to see your estimate.

Vehicle price
$0.00
Trade-in
—
Taxable amount
$0.00
Excise and sales tax (4.5%)
$0.00
Title fee
$0.00
Registration fee
$0.00
Dealer / documentation fee
—
Estimated total
$0.00
How this estimate was calculated

    Estimates are for informational purposes only. Actual taxes and fees may vary based on your location, vehicle, transaction and current state rules.

    Estimated Oklahoma Car Sales Tax

    Excise and sales tax4.5%
    Local taxNone on vehicles
    Trade-inLowers taxable price
    Dealer feeTaxed with the price; limit not confirmed

    Oklahoma charges a 4.5% combined rate on a vehicle purchase, made up of a 3.25% motor vehicle excise tax and a 1.25% motor vehicle sales tax, which comes to $1,125.00 on a $25,000 purchase with no trade-in.

    Tax is charged on the price after your trade-in allowance is subtracted; Oklahoma added this trade-in credit through Senate Bill 984 in 2023.

    Many used vehicles are taxed differently: $20 on the first $1,500 of the price, plus 4.5% of the rest. This calculator applies the flat 4.5% rate to the whole price, which can overstate the tax on a lower-priced used car.

    Oklahoma Car Title and Registration Fees

    Oklahoma's title fee is $11. Registration is an annual fee that steps down as the vehicle ages, from $91 for the first four years down to $21 once a vehicle is 17 years or older, so we have not added a single flat figure; enter your own amount under Advanced options.

    FeeAmountNotes
    Title feeTitle$11.00The standard title fee.
    Registration feeRegistrationVariesAn annual fee that steps down with the vehicle's age, from $91 (years 1–4) to $21 (17+ years). Enter your amount under Advanced options.
    Dealer documentation feeSet by the dealerVariesWe have not confirmed a specific Oklahoma dollar limit on the dealer documentation fee.

    How Oklahoma Car Sales Tax Is Calculated

    1. Start with the purchase price.
    2. Subtract your trade-in allowance.
    3. Multiply the result by the combined excise and sales tax rate of 4.5%.
    4. Add the $11 title fee and your age-based registration fee to reach your out-the-door price.

    Many used vehicles are taxed under a different formula: $20 on the first $1,500 of the price, plus 4.5% of the amount above that, instead of a flat 4.5% of the whole price. This calculator does not switch to that formula, so a used-vehicle estimate here can run a little high.

    If you are buying a used vehicle, Oklahoma's real formula is $20 on the first $1,500 of the price plus 4.5% of the rest, which is usually lower than what this calculator's flat 4.5% shows; check the Tax Commission's excise tax calculator for the exact figure. Read how a trade-in affects sales tax to see how Oklahoma compares with other states.

    Example Oklahoma Car Sales Tax Calculation

    This example applies the flat 4.5% combined rate; Oklahoma's own used-vehicle formula ($20 on the first $1,500 plus 4.5% of the rest) can give a slightly lower figure.

    Vehicle price$25,000.00
    Trade-in−$5,000.00
    Taxable amount$20,000.00
    Excise and sales tax (4.5%)$900.00
    Title fee$11.00
    Registration feeNot included
    Estimated total$20,911.00

    This is an illustration, not a quote.

    Frequently Asked Questions About Oklahoma Car Sales Tax

    What is the car sales tax rate in Oklahoma?

    Oklahoma charges a combined 4.5% rate on a vehicle purchase: a 3.25% motor vehicle excise tax plus a 1.25% motor vehicle sales tax.

    Does a trade-in reduce Oklahoma sales tax?

    Yes. Since Senate Bill 984 took effect in 2023, the trade-in value is deducted from the taxable sales price.

    Is Oklahoma's used car tax calculated differently?

    For many used vehicles, yes: the formula is $20 on the first $1,500 of the price, plus 4.5% of the remainder, rather than a flat 4.5% of the whole price. This calculator uses the flat rate, so a used-vehicle result can run slightly high.

    How much is the title fee in Oklahoma?

    The title fee is $11. Registration is a separate annual fee that decreases as the vehicle ages.

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