Auto Loan Calculator
Work out the monthly payment on a car loan after your down payment and trade-in, with sales tax and fees included. Compare the same loan over different terms. It runs in your browser.
Also searched as: car loan calculator · car payment calculator · vehicle loan calculator · auto loan payment calculator
Updated November 9, 2026
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How to use it
- 1
Enter the car
Type the price, your down payment and any trade-in value.
- 2
Add tax, fees and rate
Enter the sales tax, fees and yearly interest rate, and pick a term.
- 3
Compare terms
See the payment and total interest for 24 to 84 months side by side.
Questions about auto loan calculator
Is sales tax included?
Yes. Enter your rate and choose whether it is charged on the price before or after the trade-in, because rules differ by place.
Why does a longer loan cost more?
The monthly payment falls, but you pay interest for more months, so total interest rises. The table shows the effect for 24 to 84 months.
Is my information private?
Yes. It is worked out on your device and never sent anywhere.
What you actually borrow
The loan is not the sticker price. The tool starts with the price, adds sales tax and fees, then takes off your down payment and trade-in. For a 35,000 car with 7% sales tax, 500 in fees and 5,000 down, the tax is 2,450.00 and the amount financed is 32,950.00. At 7.5% over 60 months that is 660.25 a month and 6,665.02 in interest, so the car costs 44,615.02 in total.
| Term | Monthly payment | Total interest | Total cost |
|---|---|---|---|
| 36 months | 1,024.95 | 3,948.20 | 41,898.20 |
| 48 months | 796.69 | 5,291.35 | 43,241.35 |
| 60 months | 660.25 | 6,665.02 | 44,615.02 |
| 72 months | 569.71 | 8,069.06 | 46,019.06 |
| 84 months | 505.40 | 9,503.28 | 47,453.28 |
Term and trade-in
A longer loan lowers the payment but raises the interest. Stretching the same loan from 48 to 84 months drops the payment from 796.69 to 505.40, yet the interest rises from 5,291.35 to 9,503.28. A long loan can also keep you owing more than the car is worth for longer.
A trade-in lowers the amount you borrow, and in many places it lowers the tax too. With an 8,000 trade-in the tax is 1,890.00 when it is charged after the trade-in, and 2,450.00 when it is charged on the full price. Tick or untick the box to match the rule where you live.