| Typical new-car loan term | 60 to 72 months (Federal Reserve Consumer Credit data) |
| Average auto loan balance (new vehicle) | Approximately $40,000 (Experian State of the Automotive Finance Market, 2024) |
| Interest paid on a $35,000 loan at 7% over 60 months | Roughly $6,600 (Standard amortization calculation) |
| Share of new cars financed | About 80% (Experian State of the Automotive Finance Market, 2024) |
| Average first-year depreciation on a new car | 15% to 25% (Automotive industry general estimates) |
| Documentation fee range | $100 to $900 depending on state (State-level dealer fee surveys) |
What you are actually agreeing to when you sign a car loan
A car loan is a contract with several distinct cost components. The purchase price is just the starting point. By the time you sign, the loan document reflects the financed amount, the interest rate, the loan term, and a collection of fees that vary by lender and state. Understanding each piece before you sign reduces the chance of surprises.
The principal is the amount you borrow. If you put $5,000 down on a $35,000 car, your principal is $30,000. Every other cost stacks on top of that number. The interest rate is what the lender charges for the use of that money, expressed as an annual percentage. The rate you receive depends on your credit score, loan term, and the lender's own pricing. A higher rate on a long term can cost thousands more than a lower rate on a shorter one.
The loan term affects both your monthly payment and your total cost. A 72-month loan lowers the monthly payment but extends the period over which interest accrues. For a closer look at how financing fits into overall car costs, see what car ownership actually costs.
| Typical new-car loan term | 60 to 72 months (Federal Reserve Consumer Credit data) |
| Average auto loan balance (new vehicle) | Approximately $40,000 (Experian State of the Automotive Finance Market, 2024) |
| Interest paid on a $35,000 loan at 7% over 60 months | Roughly $6,600 (Standard amortization calculation) |
| Share of new cars financed | About 80% (Experian State of the Automotive Finance Market, 2024) |
| Average first-year depreciation on a new car | 15% to 25% (Automotive industry general estimates) |
| Documentation fee range | $100 to $900 depending on state (State-level dealer fee surveys) |
How interest really accumulates on an auto loan
Auto loans in the US are almost always simple interest loans. Interest accrues daily on the outstanding balance. Each payment covers the interest that has built up since the last payment, then reduces the principal by the remainder.
This is why amortization matters. In the first months of a 60-month loan, a larger share of each payment goes toward interest than principal. As the balance falls, more of each payment shifts to principal. If you make extra payments early in the loan, you reduce the balance faster and pay less total interest.
The APR is more useful than the interest rate alone when comparing offers because it folds in most required fees. Two loans with the same nominal rate but different fees will have different APRs. Always compare APRs, not just the monthly payment.
This article is for general informational purposes and does not constitute personalized financial advice. Consult a licensed financial professional for guidance specific to your situation.
This article is general information, not personalized advice
The figures and explanations here are for educational purposes. Loan terms, fees, and rates vary by lender, credit profile, and state. Consult a licensed financial professional before making borrowing decisions specific to your situation.
Fees that appear on the loan document
Several fees commonly appear in auto financing paperwork. Each one adds to the total amount financed or is paid at signing.
- A documentation fee (often called a doc fee) covers the dealer's cost of processing paperwork. State law caps this fee in many states, but it can reach several hundred dollars in others.
- A loan origination fee is charged by the lender to set up the loan. Not every lender charges one, and the amount varies.
- A title and registration fee is a government charge passed through the dealer. This is non-negotiable because it goes to the state, not the dealer.
- An extended warranty or service contract is sometimes rolled into the loan at signing. This is optional. Financing it adds cost because you pay interest on the warranty price for the life of the loan.
- GAP coverage is worth considering if you financed most of the purchase price, since a new car can depreciate faster than you pay down the loan. However, pricing varies widely, so compare what the dealer charges against what your insurer or a standalone provider charges.
For a full picture of costs that often catch new owners off guard, see overlooked vehicle expenses.
Where depreciation connects to your loan balance
Depreciation is not a line on your loan document, but it interacts directly with what you owe. A new car typically loses 15% to 25% of its value in the first year. If you financed a large share of the purchase price, the car's market value can drop below your outstanding loan balance, a situation called being underwater or having negative equity.
Negative equity becomes a financial problem if the car is totaled, stolen, or if you want to trade in early. Your insurer pays the market value, not what you owe the lender. That gap falls to you unless you have GAP coverage.
Putting more money down at purchase, choosing a shorter loan term, or selecting a vehicle with a slower depreciation rate all reduce the risk of going underwater. The leasing vs. buying comparison covers how depreciation is handled differently depending on how you structure the deal.