Last checked Nov 10, 2026
Buying a car in California
The tax you will pay, whether your trade-in lowers it, what the dealer may charge for paperwork, and where to title and register. Taken from official California sources.
- State tax on vehicles
- 7.25%
- Trade-in lowers tax
- No
- Doc fee limit
- $85
- Deadline to title or register
- 10 days
details below
Sales tax on a car in California
California charges a state sales tax of 7.25% on vehicle purchases.
District taxes of 0.10% to 2.00% each apply in most areas, and the DMV lists total rates from 7.25% to 10.25% depending on the city and county.
A buyer who purchases from a private party pays use tax to the DMV at registration, at the rate for the address where the vehicle is registered. Purchases from certain close family members are exempt.
Does a trade-in lower the tax?
A trade-in allowance cannot be deducted; tax is charged on the full selling price.
Example, state tax only. On a $30,000 car with a $10,000 trade-in, the taxable amount is $30,000, so the state tax is about $2,175. Local taxes and fees are extra.
Dealer doc fees in California
California Vehicle Code 4456.5 limits the document processing charge to $85 for a dealer that is a DMV private industry partner and $70 for any other dealer. The amounts are fixed in the statute and do not adjust annually.
The documentation fee is taxed along with the vehicle.
Whatever the rule, the fee is part of your out-the-door price. Ask for it in the written quote and negotiate the total, not the line. See dealer fees explained.
Title and registration
Titles and registrations are handled by the California Department of Motor Vehicles. A buyer in a private sale has 10 days to transfer ownership. Many dealers are authorized to transfer the title and issue temporary registration; if the dealer does not, the buyer must register the vehicle.
Also worth knowing
- A gasoline vehicle more than four years old needs a smog certification, which the seller must obtain before the sale.
- A gasoline vehicle less than four years old does not need a smog certification, but a smog abatement fee applies.
- A dealer may also charge an electronic filing charge, limited to the actual amount the dealer pays its registration service provider.
- A dealer may not represent the document processing charge as a governmental fee.
Sources
- CDTFA: Tax Guide for Motor Vehicle Dealers (cdtfa.ca.gov)
- CDTFA: California City and County Sales and Use Tax Rates (cdtfa.ca.gov)
- CDTFA: Tax Guide for Purchasers of Vehicles (cdtfa.ca.gov)
- California Vehicle Code section 4456.5 (leginfo.legislature.ca.gov)
- California DMV: Registration for a Vehicle Purchased from a Dealer (dmv.ca.gov)
- California DMV: How to Register Vehicles Purchased in Private Sales (dmv.ca.gov)
Last checked Nov 10, 2026; next review by Feb 10, 2027. This page explains how the rules generally work and is not tax or legal advice. Rules change, so confirm with the state. Report an error.
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