The taxes and fees on a used car typically include state and local sales tax (or use tax if you buy privately), a one-time title transfer fee, annual registration charges, and in roughly half the states an annual personal property tax. Depending on where you register the vehicle, you may also owe inspection costs, an electric vehicle surcharge, and a dealer documentation fee. On a $20,000 used car, the added costs commonly run from a few hundred dollars to well over $2,000 in the first year alone.
Sales Tax Is the Biggest Line Item
Sales tax is the single largest cost added to a used car purchase for most buyers. State rates on vehicles range from 0% to 7.5%, with most states between 4% and 7%. Counties and cities often stack their own percentages on top, pushing the combined rate above 10% in some areas. On a $20,000 car, that works out to anywhere from $800 to more than $2,000.
Five states charge no sales tax on vehicle purchases: Alaska, Delaware, Montana, New Hampshire, and Oregon. Everywhere else, the tax is calculated on the purchase price shown on the bill of sale and collected when you apply for the title.
Trade-Ins Can Lower the Taxable Amount
A majority of states let you subtract the value of a trade-in from the purchase price before calculating sales tax. Buy a $20,000 car, trade in a vehicle worth $7,000, and you pay tax on the $13,000 difference. At a 6% rate, that’s about $420 off your tax bill. A handful of states don’t allow this credit and tax the full purchase price regardless. Check with your state’s revenue or motor vehicle agency before selling your old car privately instead of trading it in.
Private Sales Still Owe Use Tax
Buying from a dealer means the dealer collects sales tax and remits it for you. Buying from a private seller means nobody collects it, but you still owe the same amount. That obligation is called use tax, and it’s due when you title and register the vehicle. The rate matches sales tax, so private buying doesn’t dodge the tax.
Reporting an artificially low price on the bill of sale is where people run into trouble. Revenue departments in many states flag purchases where the reported price sits well below fair market value. If the number looks suspicious and you can’t justify it, you’ll owe tax on market value plus penalties and interest.
Buying Across State Lines
You generally owe sales tax to the state where you register the vehicle, not where you buy it. Most states give you credit for tax already paid to the selling state, so you’re not taxed twice on the same purchase. If you paid 5% where you bought the car and your home state charges 6%, you’d owe the 1% difference at registration. Some states don’t offer full reciprocity, and a few require the selling dealer to collect their own state’s tax from out-of-state buyers. Confirm your home state’s rules before you commit to an out-of-state deal.
Title Transfer Fee
The title is the legal document proving you own the vehicle. When you buy a used car, the seller signs the title over to you and you pay the state a fee to issue a new one in your name. This one-time cost generally runs between roughly $15 and $100 for a standard passenger vehicle, though a few states charge more based on the vehicle’s value or type.
If the car has an outstanding loan, the lender is listed on the title as the lienholder. In many states, the lender holds the physical title until the loan is paid off. Even where you keep the title, the lien is printed on it, and you can’t resell without the lender’s release.
Registration Fees
Registration is the recurring charge that gives you the legal right to drive on public roads. It renews annually, or biennially in some states. The amount depends on the state and is calculated from the vehicle’s weight, original manufacturer price, age, or a flat rate. A heavy pickup often costs more to register than a compact sedan because several states tie fees to weight.
Most states give you 30 to 60 days after purchase to complete registration. Miss that window and late fees start accumulating: typically a flat penalty plus a percentage surcharge that grows the longer you wait, and some states double it after a year. Driving an unregistered vehicle can also lead to fines, license points, or having the car impounded.
Electric Vehicle Surcharges
If you’re buying a used electric vehicle, expect an extra annual registration fee in most states. At least 41 states charge a special fee on battery-powered vehicles, and many also impose a smaller fee on plug-in hybrids. These surcharges run from $50 to nearly $300 per year and are meant to offset the road-maintenance revenue gas vehicles generate through fuel taxes.1NCSL. Special Fees on Plug-In Hybrid and Electric Vehicles Factor this into your annual ownership costs when comparing an EV to a gas-powered alternative.
Dealer Documentation Fees
Buy from a dealership and you’ll see a line item labeled “doc fee” or “documentation fee” on the invoice. It covers the dealer’s cost of preparing title paperwork, filing tax forms, and submitting registration applications for you. This is a dealer charge, not a government tax, and it doesn’t apply on a private sale.
How much you pay depends on where the dealership is located. Some states cap what dealers can charge, keeping the fee under $100. In states with no cap, doc fees commonly land between $300 and $700 and can run higher. The fee is negotiable in theory, though most dealers treat it as non-negotiable. Either way, it must be clearly disclosed before you sign. Ask the dealer to break out every fee on the invoice so you know exactly what you’re paying for.
Inspections and Emissions Testing
Many states require a safety inspection, an emissions test, or both before a used car can be registered. Safety inspections verify brakes, tires, lights, steering, and other critical components. Emissions tests measure exhaust pollutants. Whether one or both applies can depend on the vehicle’s age, the county, and the type of fuel.
Inspection costs are usually modest, ranging from $20 to $90. The real expense hits if the car fails: you’ll pay for repairs and a retest before the state issues your registration. Some states offer a repair cost waiver. If you spend above a specified threshold on emissions-related repairs and the vehicle still can’t pass, you can qualify for a temporary waiver and register anyway. Thresholds vary from roughly $200 to over $1,000. Worth knowing before you sink unlimited money into a car that may never pass.
Annual Vehicle Property Tax
Sales tax is a one-time hit. In about 26 states, you’ll also face an annual personal property tax on the vehicle. This tax is based on the car’s assessed value, which depreciates over time, so the bill shrinks as the vehicle ages. Depending on where you live and what you drive, the annual amount can range from under $100 to several hundred dollars. Some states collect it alongside your registration renewal; others bill it separately through the county tax office.
If you’re moving from a state with no vehicle property tax to one that charges it, this recurring cost catches people off guard. The long-term cost of owning a vehicle can differ significantly from state to state well beyond the sticker price and sales tax.
Proof of Insurance
You won’t get past the registration counter without proof the vehicle is insured. Nearly every state requires a valid liability policy before issuing plates, and if the car is financed, your lender will almost certainly require collision and comprehensive coverage on top of the state minimums. This isn’t a government fee, but it’s a cost you must have in hand before the government will let you complete registration. Budget for the first insurance payment alongside your tax and title costs.
Gift and Family Transfers
Receiving a vehicle as a gift or buying one from a family member at a steep discount has its own tax implications. Many states reduce or waive sales tax on vehicles transferred as bona fide gifts between immediate family members, though who qualifies as “immediate family” differs. Some states require a signed affidavit confirming no money changed hands. Title and registration fees still apply.
On the federal side, a gifted vehicle counts toward the annual gift tax exclusion. For 2026, you can give up to $19,000 per recipient without triggering any gift tax reporting requirement. Married couples can combine their exclusions for $38,000 per recipient. Most used cars fall below that threshold, so the federal gift tax rarely applies. If the fair market value exceeds the exclusion, the person giving the car needs to file IRS Form 709.2Internal Revenue Service. Gifts and Inheritances
Don’t list an unrealistically low sale price on a family transaction. State revenue departments treat these the same way they treat any understated-value purchase, and you’ll owe tax on market value plus penalties if you can’t justify the number. If the car truly is a gift, use the proper gift transfer paperwork your state provides rather than a token $1 sale price.
What You’ll Need at the Counter
Before you can pay your taxes and fees, you’ll need the following documents:
- The signed title, with the odometer reading at time of sale recorded on it
- A bill of sale showing the purchase price, sale date, VIN, and both parties’ names
- Proof of insurance meeting your state’s minimum requirements
- The state’s application for title, available from your local DMV website
- A valid driver’s license or state-issued ID
Make sure the purchase price on your bill of sale matches what you report on the title application. A mismatch raises red flags and can delay processing or trigger an audit.