How Auto Loans Work: Rates, Terms and Getting the Best Deal
How auto loans work: what affects auto loan rates, dealer vs. bank financing, choosing a loan term, down payments, negative equity and add-ons to watch for.
Updated
Auto Loans
Finance a car without overpaying for the loan.
How auto loans work
An auto loan is a secured installment loan: the vehicle serves as collateral, which is why rates are usually lower than on unsecured personal loans. You repay the amount financed — the price plus taxes and fees, minus your down payment and trade-in — in fixed monthly payments.
What affects your auto loan rate
- Your credit score and debt-to-income ratio.
- New vs. used — used-car loans often carry higher rates.
- Loan term — longer terms typically cost more.
- Down payment — more down can mean better terms and less risk of negative equity.
- Lender — banks, credit unions, online lenders and manufacturer-affiliated lenders all price differently.
Smart steps when financing a car
- Get preapproved before you shop.
- Negotiate the vehicle price first, separately from financing and trade-in.
- Compare the APR and total cost, not just the monthly payment.
- Read the contract for add-ons like extended warranties, GAP coverage and service plans, which you can often decline or buy elsewhere.
- Keep the term as short as your budget allows.
Estimate your payment — including sales tax, fees and trade-in — with the auto loan calculator, and read how auto loans work. The CFPB’s auto loan resources explain dealer financing in more detail.
Frequently asked questions
Is it better to finance through a dealer or a bank?
Get preapproved by a bank or credit union first, then let the dealer try to beat that rate. Having an outside offer helps you compare and negotiate.
What is negative equity on a car loan?
Negative equity means you owe more than the car is worth. It is common with small down payments and long terms, and it can be costly if the car is totaled or you want to trade it in.
How long should a car loan be?
Shorter is cheaper. Many buyers aim for 60 months or less; longer terms lower the payment but increase total interest and the risk of negative equity.
Part of our Loans hub and our complete personal finance guide. Read our editorial standards.
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