APR, or annual percentage rate, is the yearly cost of borrowing money for a car, expressed as a percentage. It includes not just the interest rate but also certain fees and prepaid costs the lender rolls into the loan. Think of it as the fuller picture of what you’re actually paying to finance a vehicle. On a $23,000 car loan with a four-year term, the difference between a 5% APR and a 6% APR works out to roughly $503 more in total interest, so even small percentage differences add up over the life of the loan.
How APR Differs From the Interest Rate
The interest rate is the base cost a lender charges you for borrowing the money. APR takes that rate and folds in additional charges, such as origination fees or prepaid finance charges. Because it captures more of the true cost, APR is almost always slightly higher than the interest rate alone. Federal law requires lenders to disclose the APR on any loan offer, which makes it the most reliable number to use when comparing financing options from different sources.
When a dealership or bank hands you a loan estimate, look at the APR rather than just the interest rate. Two lenders might quote the same base interest rate, but if one charges higher fees, its APR will be higher, and that’s the loan that costs you more.
What Determines Your APR
Lenders don’t use a single rate for everyone. They calculate your APR individually based on several factors, with your credit score carrying the most weight. Based on Experian data from Q3 2025, here’s how average rates break down across credit tiers:
- Super prime (781 to 850): 4.66% for new cars, 7.70% for used
- Prime (661 to 780): 6.27% for new cars, 9.98% for used
- Near prime (601 to 660): 9.57% for new cars, 14.49% for used
- Subprime (501 to 600): 13.17% for new cars, 19.42% for used
- Deep subprime (300 to 500): 16.01% for new cars, 21.85% for used
The gap is dramatic. A buyer with excellent credit financing a new car at 4.66% pays a fraction of what a subprime borrower pays at 13.17%. On a $30,000 loan over five years, that difference translates to thousands of dollars in extra interest.
Beyond credit score, lenders also weigh the length of the loan and the age of the vehicle. Longer loan terms (six or seven years) generally come with higher APRs because the lender is taking on more risk over a longer period. Used cars carry higher rates than new ones for the same reason: an older vehicle is worth less as collateral, so the lender compensates by charging more. Your down payment size, income, and debt-to-income ratio can also nudge the rate up or down.
Dealership Financing vs. Bank or Credit Union
Where you get your loan matters as much as your credit score. Research from J.D. Power shows that roughly 78% of dealerships mark up the interest rate on car loans. Here’s how that works: the dealership submits your application to a lender, gets an approved rate, then adds a percentage on top as its own commission. You see only the higher number. The markup might be half a point or two full points, and it’s not always obvious unless you’ve already shopped around.
Banks and credit unions generally offer more competitive rates, particularly for borrowers with credit scores above 660. Getting preapproved before you visit a dealership gives you a baseline APR to compare against whatever the dealer offers. If the dealer can’t beat it, you already have financing in hand.
That said, dealerships sometimes run promotional deals that banks can’t match. A 0% APR offer, for example, eliminates interest entirely. These promotions are typically limited to new vehicles from specific manufacturers, and they usually require an excellent credit score to qualify. They may also come with trade-offs, like forfeiting a cash rebate. Read the terms carefully to make sure the 0% deal actually saves you more than the alternative.
How APR Affects Your Monthly Payment
Your monthly payment is determined by three things: the loan amount, the term length, and the APR. A lower APR means more of each payment goes toward the principal (the actual price of the car) rather than interest. On a $23,000 loan at 5% APR over four years, your monthly payment would be around $529. Bump that to 6% and the payment rises to about $540. That $11 monthly difference seems small, but it adds up to roughly $503 over the full term.
Stretching the loan to five or six years lowers the monthly payment but increases total interest paid, and often comes with a higher APR to begin with. A shorter term costs more each month but saves you significantly over the life of the loan.
How to Get a Lower APR
The most direct way to lower your APR is to improve your credit score before you apply. Paying down existing balances, correcting errors on your credit report, and avoiding new credit inquiries in the months leading up to a car purchase can all help. Moving from the near-prime tier to the prime tier alone could shave 3 to 4 percentage points off a used car loan.
Shopping multiple lenders is the next most effective step. Get quotes from at least two or three sources: your current bank, a credit union, and an online lender. Multiple auto loan inquiries within a 14-day window typically count as a single inquiry on your credit report, so rate shopping won’t hurt your score. Once you have a preapproval in hand, let the dealership try to beat it. Sometimes they can, especially if manufacturer incentives are in play.
Making a larger down payment reduces the loan amount relative to the car’s value, which lowers the lender’s risk and can result in a better rate. Choosing a shorter loan term helps for the same reason. And if you’re buying used, choosing a newer used vehicle rather than one that’s eight or ten years old can sometimes qualify you for a lower APR, since the car holds its value better as collateral.