How your car payment is calculated
Amount financed = Price + Sales tax + Fees − Down payment − Trade-in
Payment = P × r ÷ (1 − (1 + r)^−n), where r = APR ÷ 12 and n = months.
Example
A $32,000 car with $4,000 down, 6% sales tax, $700 in fees, 7% APR over 60 months finances about $30,620, for a payment near $606 and about $5,759 in interest.
Ways to lower your payment
- Shop your rate with a bank or credit union before visiting the dealer.
- Increase the down payment to reduce what you borrow.
- Be cautious with 72–84 month terms: interest rises and you may owe more than the car is worth.
The payment is only part of the story — use the true cost of ownership calculator to add fuel, insurance and depreciation.
Need more detail? Try the payment calculator with tax and fees, the payment calculator with trade-in and payoff, or the negative equity calculator.