Vehicle Sales Tax Calculator

State and local sales tax is applied to the taxable selling price of the vehicle. Many states reduce the taxable amount by the trade-in vehicle value before calculating tax, which lowers your total tax bill. Some states tax the full selling price regardless of trade-in. Dealer fees and documentary fees may also be taxable depending on the state. Always confirm the exact rate with your state DMV or dealer.

In most states, the trade-in allowance is subtracted from the vehicle purchase price before applying sales tax, resulting in meaningful savings. For example, if you buy a $35,000 car and trade in a vehicle worth $10,000, you pay tax on $25,000 rather than $35,000. However, a few states, including California, do not reduce taxable price by trade-in value. Verify your state's rules before purchase.

Yes. Common fees include dealer documentation fees, registration and title fees, inspection fees, and sometimes dealer-added accessories or prep charges. Some fees are taxable under state law and some are not. Electric vehicle buyers may also face additional state registration fees. Negotiate fees carefully since some are fixed by law but documentation fees in many states have no statutory cap.

You generally pay sales tax based on your state of registration, not where you purchase the vehicle. When buying in a different state, dealers typically collect the tax for your home state if the states have a reciprocity agreement. If not, you may pay the purchase-state tax and receive a credit toward your home-state tax when you register. Verify with your state motor vehicle agency before buying out of state.