Skip to content
Browse carsHow buying worksBuying guideGuidesSell your carList your carTrust & safetySign in or create accountFor dealersDealer sign in

Used car financing basics: APR, loan term and down payment explained

BuyCarCentral guides · October 21, 2026 · 2 min read

A car loan is three numbers: how much you borrow, the rate you pay and how long you take to repay it. Change any one and the monthly payment and the total cost change. Understanding them lets you compare offers on the numbers that matter.

The numbers that matter

TermWhat it means
Amount financedThe price of the car plus taxes and fees, minus your down payment and trade-in
APRThe yearly cost of the loan as a percentage, including interest and certain fees
TermHow many months you will take to repay the loan
Down paymentThe money you pay up front, which lowers the amount you borrow
Total costEverything you will pay over the life of the loan, including interest

How they work together

A longer term lowers the monthly payment and raises the total you pay in interest. A higher rate raises both. A larger down payment lowers both. For example, borrowing the same amount at the same rate for a longer term gives a smaller payment, but you pay interest for more months.

Get pre-approved first

Before you shop, ask your bank or credit union what they would lend you and at what rate. You then know what budget to shop within and what rate the dealer needs to beat. You are never required to use the dealer's financing.

Check your credit

Your credit history strongly affects the rate you are offered. You are entitled to free reports from the major credit bureaus, and fixing errors before you shop can save money.

Watch for these

  • Spot delivery or yo-yo financing. Taking the car home before the financing is final, and then being called back to sign a worse deal. Do not take the car until the financing is approved and the terms are in writing.
  • Extra products rolled into the loan, such as service contracts, which add to the amount you borrow and the interest you pay.
  • A longer term than you need. You can end up owing more than the car is worth.
  • Prepayment penalties. Ask whether you can pay the loan off early without a charge.

Read before you sign

Before you sign, read the contract. It should show the amount financed, the APR, the finance charge, the total of payments and the payment schedule. If any number differs from what you were told, ask why.

Common questions

What is a good APR for a used car loan?

It depends on your credit, the loan term and the market. Compare offers from a bank or credit union with the dealer's, and choose the lowest total cost.

How big should my down payment be?

As large as you comfortably can. A bigger down payment lowers the amount you borrow and the interest you pay, and can help you avoid owing more than the car is worth.

Can I pay off a car loan early?

Often yes, but check your contract for any penalty for early payment.

Keep reading

Price and financingBuy here pay here: how it works, when it makes sense and what to watch forBuy here pay here dealers finance cars themselves. Learn how it works, who it helps, what it can cost and…Price and financingDealer documentation fees explained: what they are and what to do about themA dealer documentation fee covers sale paperwork. Learn what it includes, how it varies by state and dealer…Price and financingHow to negotiate the price of a used car (without the games)Negotiating a used car price is easier with research, a clear budget and the out-the-door number.

General information, not legal, tax or financial advice. Rules and prices change and differ by state; check with the right professional or your state agency before you act.