Key terms

The words that control the deal.

Know these before comparing offers. Small wording differences can change the cost of the car.

Car loan
Financing arranged with a lender, such as a credit union, bank, online lender, finance company, or dealership-connected lender.
Interest rate
The percentage rate charged for borrowing money before certain fees are included. It is useful, but APR is usually better for comparing offers.
APR
Annual Percentage Rate. This reflects the yearly cost of credit, including interest and certain loan costs. When shopping, compare APRs for the same term and amount financed.
Loan term
The number of months you agree to repay the loan. Auto loans are often offered in 12-month increments, commonly from 36 to 84 months.
Principal
The amount borrowed and owed before interest. Payments are typically applied to fees first, then interest, then principal, depending on the contract.
Monthly payment
The amount due each month. It matters for cash flow, but it should not be the only number you compare.
Down payment
Money paid up front to reduce the amount financed. A larger down payment can reduce monthly payment, total interest, and negative-equity risk.
Amount financed
The loan balance after the down payment, trade-in credit, taxes, fees, add-ons, and any rolled-in debt are counted.
Out-the-door price
The total price before financing: vehicle price plus taxes, title, registration, dealer fees, and required charges.