Out-the-door price in Oklahoma
How Oklahoma works
- Oklahoma has no sales tax on a car in the usual sense. It charges a 3.25% motor vehicle excise tax and a 1.25% motor vehicle sales tax, 4.5% together, and you pay both at the tag agency when you register, not to the dealer. No city or county adds a vehicle tax, so the rate is the same in every ZIP.
- Your trade-in lowers the 1.25% sales tax, which is figured on the price less the trade. It does not lower the 3.25% excise tax, which is figured on the full price. The calculator shows each tax on its own line, with the trade-in taken off only the 1.25% tax.
- On a used car the excise tax is $20 on the first $1,500 of the price plus 3.25% of the rest, which is $28.75 less than 3.25% of the whole price. This calculator does not apply that yet, so a used-car tax can read $28.75 too high.
- The doc fee is not part of the excise tax. The state's rule leaves out fees for a service the seller provides, naming the documentary fee, plus financing, insurance and maintenance-agreement charges. Equipment and accessories fixed to the car are part of it. We found no rule that subtracts a manufacturer rebate, so none is applied.
- Registering the car: the dealer cannot do it for you. Oklahoma bars a dealer from procuring your registration or acting as your agent. The dealer puts a temporary plate on the car and sends your information to the state within two business days. You get your metal plate and pre-registration decals by mail within 10 days, then you have two months to title and register at a tag agency (a licensed operator), where you pay the taxes and fees in this total. Starting January 1, 2027 the dealer issues a 60-day temporary plate instead.
- Pay the excise tax within 30 days, even though the registration deadline is two months. The tax is late after day 30.
- Oklahoma does not cap the doc fee. For a new car the state requires it to be in the advertised price. For a used car the state's rule lets a dealer leave a processing fee out, and the FTC expects it in.
- Registration is $96 for a car in its first four years and falls to $26 after 16. The $96 here is for a new car, or a used car 3 model years old or newer. Commercial trucks register under a weight schedule this calculator does not cover.
Rules last verified Oct 11, 2026. Our methodology.
Try it for your ZIP
What an Oklahoma advertised price has to include
Oklahoma's rule for new-car dealers already requires the advertised price to be the full selling price, with only taxes, title and license fees left out, so the doc fee belongs in it. The rule for used-car dealers also lets a dealer leave out a processing fee. The FTC expects every fee the dealer charges, the doc fee included, to be in the advertised price, so only government charges like the excise tax, sales tax, title and registration can be added on top. That still isn't your out-the-door number; the calculator above adds the rest for your ZIP.
Federal law comes first
The FTC requires a dealer's advertised price to include every fee the dealer charges. Only charges the government requires you to pay, like tax, title and registration, can be left out. Where a state's rules let a dealer leave a fee out, the dealer still has to follow the federal rule, so the fee goes in. The FTC says a state's doc-fee rules can add disclosures, but they don't change the price that has to be advertised. Read the FTC's guidance.
Oklahoma's used-car rule and the FTC conflict on the processing fee
For used cars, Oklahoma's rule lets a dealer leave a processing fee out of the advertised price. The FTC expects every fee a dealer requires, the doc fee included, to be in the advertised price. Until regulators or the courts settle it, you may see used-car ads that leave it out. Ask whether the price includes it, and get the out-the-door price in writing.
What the FTC expects in the advertised price
- The doc fee, which Oklahoma does not cap, whatever the dealer calls it: processing, documentary, service and handling, administrative or closing fee
- Freight (destination) and dealer preparation charges
- Dealer-installed accessories and add-ons
- Any other fee the dealer charges that the government does not require you to pay
Can still be added on top
- The 3.25% excise tax and the 1.25% sales tax you pay at the tag agency
- The $11 title fee, the registration fee ($96 for a car in its first four years) and the transfer fee
- The insurance verification fee, the tire recycling fee on a new car, and the lien fee if you finance
- Optional products you choose to buy, such as a service contract or GAP coverage
- New cars: the most conspicuous price must be the full selling price any retail buyer can get. Only taxes, title and license fees can be left out (OAC 465:15-3-7(a)). The state's term "dealer-added fee" covers processing, documentary, service and handling, administrative, closing and ADP fees, and the dealer may not say or imply that one is required by law.
- Used cars: the most conspicuous price must be the full and total selling price. Only state and local taxes, license, title and processing fees can be left out (OAC 765:16-3-6(a)). A price cannot be qualified with "with trade" or "with dealer-arranged financing."
- Rebates: a new-car price that includes a rebate must say so. A rebate only some buyers qualify for has to be shown as separate savings or a separate price, not in the headline price (OAC 465:15-3-7(c)-(d)). A used-car ad that shows a rebate must also give the full cash price.
- No trade-in amounts or ranges can appear in an ad, and a dealer may not advertise "we pay tag, tax and license" (OAC 465:15-3-14; 765:16-3-11).
- Registration: a dealer may not procure your registration or act as your agent (47 O.S. 1137.3(B) for new cars, 1137.1(F) for used). A used-car dealer may build the cost of tag, title and tax into the price but may not say it pays them (Used Motor Vehicle Commission FAQ no. 7).
More in our guide: Do dealers have to put fees in the advertised price? What actually changed for 2026
See every state: Which states let dealers leave the doc fee out of the advertised price?
Oklahoma in detail
Oklahoma OTD questions, answered
Does a trade-in reduce sales tax in Oklahoma?
Yes — Oklahoma taxes the difference: your trade-in's value is subtracted before tax is computed.
Are manufacturer rebates taxed in Oklahoma?
Effectively yes — tax is computed before the rebate is applied, so you pay tax on the pre-rebate price.
Is the doc fee capped in Oklahoma?
No — doc fees are uncapped in Oklahoma; buyers report a typical $549.00. It's negotiable as part of your total OTD.
What does an Oklahoma dealer's advertised price have to include?
Every fee the dealer charges, including the doc fee. For a new car, Oklahoma's rule says only taxes, title and license fees can be left out. For a used car the state's rule lets a dealer leave out a processing fee, but the FTC expects it in, so the two conflict. Only government charges like the excise tax, sales tax, title and registration can be added on top.
Do I pay sales tax at the dealership in Oklahoma?
No. You pay the 3.25% excise tax and the 1.25% sales tax at a tag agency when you register, within 30 days of buying. The rate is 4.5% in every city and county.
Does Oklahoma cap the doc fee?
No. Oklahoma sets no dollar limit. The state's advertising rules govern how it is shown, and the FTC expects a required doc fee to be in the advertised price.
Does my trade-in lower the tax in Oklahoma?
Partly. It lowers the 1.25% sales tax, which is figured on the price less the trade. It does not lower the 3.25% excise tax, which is figured on the full price.