California use tax on a vehicle is due by the end of the month after purchase, charged on the full price at the sales tax rate for your registration address (California Department of Tax and Fee Administration, October 2026). On a private or out-of-state purchase, a trade-in does not reduce the price.
At a glance
Key Facts
Rate
Sales tax rate at your registration address
Tax base
Total purchase price
Trade-in (private or out-of-state purchase)
Does not reduce the price
Payment due
End of the month after purchase
Introduction
Most California vehicle buyers meet the tax at one of two points: the dealer adds sales tax to the contract, or, for a private sale or an out-of-state purchase, the DMV collects use tax when the vehicle is registered. The rate does not come from a single statewide figure: it is the combined state and local rate where the vehicle is registered.
This guide follows the California Department of Tax and Fee Administration (CDTFA) guide for purchasers of vehicles, vessels and aircraft. It covers when use tax applies, what counts as the price, the credit for tax paid to another state, and the gift, family, inheritance and military cases the CDTFA describes. Because the local part of the rate is reset by district, the guide does not print a statewide total; use the CDTFA rate lookup for your address.
Section 01
When Use Tax Applies and What the Rate Is
The CDTFA says use tax applies to purchases of vehicles for use in California when an amount for sales tax is not paid to a California dealer. That includes purchases from out-of-state sellers, private parties, or California dealers when delivery of the vehicle is taken out of state. You generally pay it when you register the vehicle with the Department of Motor Vehicles (DMV).
On the rate, the CDTFA states: "The use tax rate is the same as the sales tax rate and is based on the address where you register your vehicle." The state and local portions together change by city and district, so two buyers of the same car can owe different amounts; look up the rate for your registration address with the CDTFA.
Situation
Which tax
Dealer in California, delivery in California
Sales tax, charged by the dealer
Private party purchase
Use tax, normally paid to the DMV at registration
Bought from an out-of-state seller
Use tax, with credit for tax paid to the other state
Registered without paying at the DMV
Use tax paid directly to the CDTFA
Section 02
What Counts as the Price
The CDTFA says the total purchase price of your vehicle is subject to tax. It includes any type of payment, such as cash, checks, the payment or assumption of a loan or debt, and the fair market value of any property or services traded, bartered or exchanged for the vehicle. So a trade-in does not shrink the base on a private or out-of-state purchase. The CDTFA's own example: you buy a vehicle for $5,000 and give the seller your current vehicle valued at $3,000 plus $2,000 in cash. You owe use tax on the entire $5,000 purchase price.
Our illustration (assumed 8.5% combined rate)
Amount
Purchase price paid as $30,000 cash
$30,000
Tax at an assumed 8.5% rate
$2,550
Same vehicle bought for $20,000 cash plus a $10,000 trade-in
Taxable price still $30,000
The 8.5% rate is only an assumption to show the arithmetic; it is not a California rate. Use the rate for your own address.
Section 03
Paying: Deadline and Credit for Tax Paid Elsewhere
Deadline: your tax payment is due on or before the last day of the month following the month of purchase, and penalty and interest begin to accrue once the due date has passed.
Where to pay: use tax is generally paid at the DMV when you register. If you registered without paying, you must pay the CDTFA directly.
Credit for another state's tax: if you paid tax to another state when purchasing your vehicle, you may be entitled to claim a credit for the tax previously paid. The CDTFA's example: you paid $1,500 to another state and the California use tax is $2,000, so the balance due to California is $500.
Lease buyouts: buying a vehicle you were leasing is subject to tax.
Section 04
Exemptions and Special Cases
Gifts: if you receive a vehicle as a gift you are not required to pay use tax. It is not a gift if you pay cash, trade property, provide services or assume a liability for it, or if an employer gives it to you as pay.
Family transactions: buying from a qualifying family member who is not in the business of selling vehicles is exempt. Qualifying family means a parent, grandparent, child, grandchild, or spouse or registered domestic partner, plus a sibling only if the sale happens while both are minors. The exemption does not extend to stepparents or stepchildren unless a natural parent or child is involved or there is a legal adoption.
Involuntary transfers: a vehicle acquired through a court order, a divorce property settlement, an inheritance or a repossession of a vehicle you sold carries no use tax.
Military: an active-duty service member whose vehicle is brought in because of an official transfer may owe no use tax, but only if the vehicle was bought and delivered outside California before the orders arrived.
Bought for use outside California: a vehicle first used outside the state and brought in within 12 months of purchase is presumed to be bought for use in California, which makes it taxable unless you can rebut the presumption with documents.
Paperwork: the DMV may ask for a use tax clearance certificate from the CDTFA before it registers a vehicle you claim is exempt, and it may not collect the tax on a stated gift or family transfer but the CDTFA can ask for proof later.
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Do I pay sales tax or use tax on a car in California?
If a California dealer sells and delivers the car in California it charges sales tax. If a private party or an out-of-state seller sells it, you owe use tax, normally paid to the DMV when you register.
Q
What is the California vehicle sales tax rate?
The CDTFA says the use tax rate equals the sales tax rate for the address where you register the vehicle. The combined state and local rate differs by city and district, so look it up for your address.
Q
Does a trade-in reduce California use tax?
Not on the CDTFA's description of a private or out-of-state purchase: the total purchase price includes the fair market value of property traded, so a $3,000 trade-in plus $2,000 cash is taxed on $5,000.
Q
When is vehicle use tax due in California?
On or before the last day of the month following the month of purchase. Penalty and interest start after the due date.
Q
Is a gifted car taxed in California?
A true gift is not taxed, but it is not a gift if you give anything in exchange or if the vehicle comes from your employer as compensation.
Q
Can I get a credit for sales tax paid in another state?
Yes, you may claim a credit for tax you already paid to another state; if you paid $1,500 and the California tax is $2,000, you owe $500.
Q
Do I pay tax on a vehicle I inherit or buy from a parent?
An inheritance is an involuntary transfer with no use tax. A purchase from a parent, grandparent, child, grandchild or spouse who is not a vehicle dealer is exempt as a family transaction, with documents.
Disclaimer:This guide gives general tax information for educational purposes and is not tax, legal or financial advice. Rules, forms and deadlines are set by the authorities named here and can change; check the official sources linked in this guide and talk to a qualified tax professional about your own situation.