How to calculate a car payment
The financed amount equals: Vehicle Price + Sales Tax + Fees − Down Payment − Trade-in. Then the standard amortization formula applies to that financed amount over the loan term.
Tips for cheaper auto financing
- Get pre-approved from your bank or credit union before visiting the dealer — dealer financing usually marks up the rate.
- A 60-month term is a sweet spot; longer terms (72-84 months) put you underwater on the car.
- A larger down payment lowers both your payment and your total interest.
- Trade-in equity directly reduces the amount you finance.