Sales Tax Calculator · Practical guide
How Much Is Sales Tax on a Car?
Car sales tax runs from zero in no-tax states to over 10% in some cities — on a $30,000 car, that is anywhere from $0 to $3,000+.
At a glance
The Short Answer
Car sales tax equals the purchase price times your combined state and local rate. At 6%, a $30,000 car adds $1,800 in tax for a $31,800 total. At 8%, the same car adds $2,400. Rates range from 0% in states like Oregon and Montana to over 10% in some cities, so the same car can differ by thousands in tax depending on where you register it.
Interactive tool
Sales Tax Calculator
Enter your own values, then compare the result with the examples below.
Sales Tax Result
Tax Amounts at Common Prices and Rates
| Vehicle Price | Tax at 5% | Tax at 6% | Tax at 8% |
|---|---|---|---|
| $15,000 | $750 | $900 | $1,200 |
| $25,000 | $1,250 | $1,500 | $2,000 |
| $30,000 | $1,500 | $1,800 | $2,400 |
| $40,000 | $2,000 | $2,400 | $3,200 |
| $50,000 | $2,500 | $3,000 | $4,000 |
Trade-Ins Often Reduce the Taxable Price
In most states you pay tax only on the price after your trade-in credit. Buy a $30,000 car with a $10,000 trade-in and the taxable amount drops to $20,000 — at 6%, that saves you $600 in tax compared with selling the old car separately. A few states tax the full price regardless, so check your state's rule before structuring the deal.
What Else Gets Taxed
Documentation fees and dealer add-ons are usually taxable, while government charges like title and registration are not. Rebates work differently by state: many tax the price before a manufacturer rebate, so a $2,000 rebate does not always shrink your tax bill. Enter your negotiated price — after trade-in credit, before title fees — into the calculator above with your local combined rate to see the exact out-the-door tax.
Frequently Asked Questions
Do I pay sales tax where I buy the car or where I live?
Where you register it. Dealers collect tax for your home state and county, and buying across state lines does not avoid your local rate.
Is sales tax due on a private-party used car sale?
In most states, yes. You typically pay the tax when you title and register the vehicle at the DMV, based on the purchase price or the car's assessed value.
Are leased cars taxed the same way?
Usually not. Most states tax each monthly lease payment rather than the full vehicle price, though a few states tax the entire capitalized cost up front.
Can I deduct car sales tax on my federal return?
Possibly. If you itemize, you can elect to deduct state and local sales taxes instead of income taxes, subject to the SALT cap — worth checking for a large vehicle purchase.