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Oklahoma Car Sales Tax Calculator

"Sales tax" in Oklahoma undersells what you actually owe. The state's real vehicle tax is two taxes stacked together: a 3.25% excise tax that's been on the books since statehood-era vehicle law, and a 1.25% sales tax the legislature bolted on in 2017. Combined, most buyers land at 4.5% - but the excise portion has its own used-vehicle formula that the sales tax doesn't share.

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Your numbers

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Official fees

Oklahoma car sales tax chart

Excise tax - new vehicle

3.25%

of actual sales price

Excise tax - used vehicle

$20 + 3.25%

flat on first $1,500, then 3.25% of the rest

Sales tax - new or used

1.25%

of full price, no threshold

Excise tax minimum (used vehicle ≤ $1,500)

$20 flat

Family gift (spouse, parent/child)

$0 excise, $0 sales tax

Form 794 required

Figures verified July 2026 against official sources (listed below). Always confirm the final amount with a Service Oklahoma office or a licensed operator (tag agent) - counties can add small local fees.

Excise tax
3.25%
Sales tax
1.25%, full price
Used-vehicle excise
$20 flat on first $1,500
New-vehicle combined
4.5% of price
Trade-in credit
None since July 1, 2026

Overview

For a used vehicle, the first $1,500 of value owes a flat $20 in excise tax instead of a percentage - only the amount above $1,500 gets the 3.25% rate. The 1.25% sales tax, by contrast, applies to every dollar of price with no threshold. This calculator runs both taxes correctly for new or used vehicles so you're not guessing which number the licensed operator will actually charge.

Same state, other costs

More Oklahoma vehicle costs

Common questions

Oklahoma car sales tax FAQ

How much tax will I pay on a $10,000 used car in Oklahoma?
$401.25 total: excise tax of $276.25 ($20 flat on the first $1,500 + 3.25% of the remaining $8,500) plus sales tax of $125 (1.25% of $10,000). A new $10,000 vehicle would owe $450 instead - the full 4.5% with no $1,500 break.
Why is my excise tax bill lower than 3.25% of the price?
Only on used vehicles, and only because the first $1,500 of value is taxed at a flat $20 rather than a percentage. On a $3,000 used car that's $20 plus 3.25% of $1,500 ($48.75) = $68.75 excise tax - well under a straight 3.25% of $3,000 ($97.50).
Does Oklahoma still give a trade-in tax credit?
Not as of July 1, 2026. House Bill 1183 rewrote the value definition used for excise tax to be simply "the actual sales price" on the bill of sale and removed the older statutory language permitting discounts or trade-in credits to reduce that price. This changed very recently - verify the current treatment with your licensed operator before assuming a trade-in will lower your bill.
Is the 1.25% sales tax based on the same value as the excise tax?
No - that's the trap. The $20-on-first-$1,500 formula is an excise-tax-only rule. The 1.25% sales tax is calculated on the entire purchase price with no threshold, whether the car is new or used.
Do gifted vehicles owe this tax?
A qualifying family gift - spouse to spouse, or parent/stepparent to child/stepchild, with no money changing hands - owes neither tax if you file the Family Affidavit (Form 794). A gift outside that narrow relationship list still owes excise tax on the vehicle's assessed value, though it escapes the 1.25% sales tax since no sale actually occurred.
Are any vehicles fully exempt from both taxes?
Yes: vehicles for qualifying disabled veterans, transfers by court order in a divorce, transfers into or out of certain trusts without consideration, and government/tribal purchases. Ordinary private-party and dealer sales don't qualify no matter how low the agreed price.

Receipts

Official sources

Every number on this page comes from these documents - check them yourself.

Disclaimer

DMVCosts provides fee estimates for general informational purposes only - it is not legal, tax, or financial advice, and no calculator can account for every county surcharge, exemption, or mid-year rate change. Figures are verified against official sources on the date shown, but fees change over time.

The final, binding amount is always the one quoted by a Service Oklahoma office or a licensed operator (tag agent). Confirm with them before making payment decisions. To the fullest extent permitted by law, DMVCosts disclaims all liability for decisions made based on these estimates.