1. Match the registration location
Use the state and local rate tied to where the vehicle will be titled, not merely the dealer's address.
STATE-BY-STATE CAR TAX
Estimate the tax before the dealer writes the deal.
Choose a state, add the local rate shown on your quote, and see how tax and an eligible trade-in can change the out-the-door price.
ESTIMATED OUT-THE-DOOR
$0- Combined rate
- 0%
- Estimated taxable amount
- $0
- Estimated sales tax
- $0
- Trade-in tax savings
- $0
Detailed state guides
How to use this estimate
2. Check the trade rule
An eligible dealer trade-in may reduce the taxable amount. A separate private sale is generally different.
3. Reconcile the buyer's order
Ask the dealer to identify every taxable charge and compare the written tax line with this estimate.
Frequently asked questions
Is car sales tax based on where I buy or register the car?
The applicable rules commonly depend on where the vehicle will be titled or registered, but interstate purchases and credits can change the result. Confirm the final rate with the state agency or dealer paperwork.
Does a trade-in reduce car sales tax?
Many states allow an eligible dealer trade-in to reduce the taxable vehicle price, while some do not. A private sale usually does not receive the same treatment.
Are dealer fees taxable?
Tax treatment varies by state and by fee. Enter only charges that the dealer treats as taxable, then check the buyer's order.
Rates and rules are educational estimates reviewed September 3, 2026. Local tax, vehicle type, residency, exemptions, rebates, leases, and private-party purchases can change the result. Verify with the linked state authority or a qualified professional.