Part of our guide to Car Payment Calculator
Car finance is negotiated in monthly payments because the monthly payment is the number easiest to move without lowering the cost.
Amount financed, APR, term, and total of payments. Together they tell you what the loan costs. The monthly payment on its own tells you almost nothing, because it can be lowered indefinitely by extending the term.
What each number means
Amount financed is what you are actually borrowing — the price plus sales tax and fees, minus your deposit and trade-in, plus any negative equity carried over. It is frequently larger than the car's price, and the gap surprises people.
APR is the annual cost of borrowing including certain fees. It is the number to compare between offers.
Term is how many months. Longer terms lower the payment and raise the total.
Total of payments is what you will hand over across the whole loan. It is the most honest figure on the page and the one least often discussed.
The trick the payment hides
Two offers with the same monthly payment can differ by thousands. Extending from sixty to eighty-four months lowers the payment and increases the interest — and extends the period during which you owe more than the car is worth.
Work the comparison in the car payment calculator: fix the amount and rate, and watch total interest rise as the term stretches.
If you owe more on a trade-in than it is worth, the shortfall can be added to the new loan. The payment stays manageable and you begin the new loan already underwater — which makes the next trade worse. The calculator shows this explicitly, and it is worth seeing before signing.
Before the finance office
Get pre-approved by a bank or credit union. It gives you a rate to beat and reveals whether the dealer's offer is competitive.
Negotiate the car price first, separately from finance and trade-in. Bundling them makes the arithmetic hard to follow, which is the point.
Read the add-ons. Service contracts, gap cover and protection packages are frequently financed into the loan, which means paying interest on them for years.
Related reading
- Car payment calculator
- Car affordability calculator
- Gap insurance — when it is worth it
- What negative equity on a car loan really costs
This is general information, not financial advice — see our disclaimer.
Frequently asked questions
What is the most important number?
The APR and the term together, because they determine total interest. The monthly payment can be made to look attractive by extending the term.
Why does a longer term cost more?
You borrow the same amount for longer, so you pay interest for longer. The payment falls and the total rises.
What is the amount financed?
The total you are actually borrowing, including tax, fees and any negative equity rolled in — often noticeably more than the car price.
Should I get financing before shopping?
A pre-approval from a bank or credit union gives you a rate to beat and separates the price negotiation from the finance negotiation.
Sources
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