Auto Loan Calculator - Car Payment
Free auto loan calculator with trade-in, sales tax and fees. See your monthly car payment, total interest, amortization schedule and charts. Print or export.
Work out your monthly car payment with the down payment, trade-in, sales tax and fees all included. See the total interest, the full amortization schedule and charts, then print or export. Everything runs in your browser.
How to Use Auto Loan Calculator - Car Payment
- Enter the vehicle price. Type the agreed price of the car.
- Add your down payment and trade-in. Both reduce the amount you need to finance. A trade-in also lowers the taxable amount in most states.
- Set the sales tax and fees. Enter your local sales tax percent and any title, registration or dealer fees.
- Add the term and interest rate. Car loans are usually quoted in months, such as 60 or 72, with an annual interest rate.
- Read the results. See the monthly payment, the amount financed, total interest and total cost, plus the schedule and charts. Print, export a CSV, or copy a share link.
Frequently Asked Questions
What is included in the amount financed?
The amount financed is the vehicle price plus sales tax and fees, minus your down payment and trade-in. That figure is then spread over the loan term to give the monthly payment.
How does a trade-in affect sales tax?
In most states sales tax is charged on the price after the trade-in is subtracted, so a trade-in lowers both the loan and the tax. This calculator applies tax to the price minus the trade-in.
How is the monthly payment calculated?
It uses the standard amortization formula on the amount financed: M = P times r divided by 1 minus (1 plus r) to the power of minus n, where r is the monthly rate and n is the number of months.
Is my information sent anywhere?
No. Everything runs in your browser. Your numbers never leave your computer and the tool works offline once loaded.
Should I choose a longer term to lower the payment?
A longer term lowers the monthly payment but raises the total interest, so the car costs more overall. The total interest and total cost shown here make that trade-off clear.
Can I use it outside the United States?
Yes. Set the sales tax to your local rate, or to zero if tax is handled separately. The payment and totals are correct in any currency.