What determines your car loan interest rate
Your interest rate is the percentage of the loan amount you pay back to the lender as the cost of borrowing. A lender sets your rate based on how risky they think you are as a borrower. The main factors are your credit score, the loan term (how many months you take to repay), the vehicle age, and current market conditions.
Someone with a credit score above 750 might receive a rate around 4 to 6 percent, while someone with a score below 620 might see rates of 10 to 18 percent or higher. The difference between these two borrowers on a $25,000 loan over 60 months can mean thousands of dollars in extra payments. Your credit score is the single largest factor lenders use because it shows your history of paying debts on time.
The loan term also moves your rate. A 36-month loan typically carries a lower rate than a 72-month loan for the same borrower, because the lender gets their money back faster and takes on less risk. However, the monthly payment on the shorter loan will be higher.
Key Takeaways
- Your credit score is the primary factor determining your rate; scores above 750 generally receive better rates than scores below 620.
- Shorter loan terms (36 to 48 months) usually come with lower interest rates than longer terms (60 to 84 months).
- New vehicles typically receive lower rates than used vehicles because they hold value more predictably and have fewer mechanical unknowns.
- You can shop rates from multiple lenders—banks, credit unions, and dealerships—before committing, and your rate may improve if you pay down your credit card balances first.
How your credit score affects the rate you receive
Lenders pull your credit report to see how you have handled past borrowing. They look at whether you paid bills on time, how much debt you currently carry, and how long you have had credit accounts open. This information becomes a three-digit score, usually between 300 and 850. Most lenders use the FICO score, though some use VantageScore or other models.
The relationship between score and rate is not linear. A jump from 650 to 700 might lower your rate by 1 to 2 percentage points, while a jump from 750 to 800 might lower it by only 0.25 percentage points. If your score is below 620, many mainstream lenders will not offer you a loan at all, and you may need to look at credit unions or subprime lenders that specialize in higher-risk borrowers.
If you are shopping for a car loan and your score is lower than you would like, paying down existing credit card balances before you explore can raise your score by 20 to 50 points within a few weeks. This small effort can save you hundreds of dollars over the life of the loan.
Why vehicle age and type change your rate
A new car depreciates the moment you drive it off the lot, but lenders know exactly how much it will be worth in two years or five years because millions of similar cars have been sold. A used car is harder to value, and if the transmission fails or the engine develops problems, the lender's collateral (the car itself) becomes worth much less. This uncertainty pushes rates higher for used vehicles.
A 2024 model might carry a rate of 5 percent, while a 2019 model of the same make and model might carry a rate of 6.5 percent, all else equal. The older the vehicle, the higher the rate climbs. Vehicles with high mileage or known reliability problems may be declined entirely by some lenders.
The type of vehicle also matters. Trucks and SUVs typically hold their value better than sedans, so they may receive slightly lower rates. Luxury vehicles sometimes receive higher rates because they are more expensive to repair and depreciate unpredictably.
Where you borrow from changes what rate you are offered
Banks, credit unions, and car dealerships all lend money for vehicle purchases, and they do not all offer the same rates. Credit unions often have lower rates than banks because they are member-owned and do not need to generate as much profit. Banks vary widely depending on their size and lending strategy. Dealerships sometimes offer competitive rates through their finance departments, but they also earn money by marking up the rate they receive from their lender, so shopping elsewhere first gives you a baseline to compare against.
You should get rate quotes from at least two or three lenders before you go to the dealership. When you request a quote, the lender will perform a hard inquiry on your credit, which temporarily lowers your score by a few points. However, multiple inquiries for the same type of loan (car loans) within 14 to 45 days count as a single inquiry for scoring purposes, so shopping around does not penalize you as much as it once did.
Some lenders offer rate discounts if you set up automatic payments from a bank account, or if you have other accounts with them. A credit union might offer 0.25 to 0.5 percent off if you are a member in good standing. These small discounts add up over time.
How loan length affects both your rate and total cost
A longer loan term means a lower monthly payment but a higher interest rate and more total interest paid. A shorter term means a higher monthly payment but a lower rate and less total interest. This trade-off is where many borrowers make a costly mistake.
On a $25,000 loan, a 48-month term at 5 percent costs about $579 per month and $2,784 in total interest. The same loan over 72 months at 6 percent costs about $389 per month but $5,008 in total interest. The monthly savings of $190 costs you an extra $2,224 in interest. If you can afford the 48-month payment, you should take it.
However, if stretching the loan to 72 months is the only way you can afford the car without missing other bills, then the longer term is the right choice. The worst outcome is taking a 72-month loan at a high rate because you did not shop around or did not improve your credit score first.
What happens after you lock in your rate
Once you sign the loan agreement, your rate is fixed for the entire loan term. You cannot refinance to a lower rate through the same lender, but you can refinance through a different lender if your credit score improves or if market rates drop significantly. Refinancing means taking out a new loan to pay off the old one, and it involves another hard inquiry and new fees, so it only makes sense if you will save enough to cover those costs.
Your monthly payment stays the same throughout the loan. Each payment covers some principal (the amount you borrowed) and some interest. Early in the loan, most of your payment goes to interest. By the end, most goes to principal. If you make extra payments toward principal, you reduce the total interest you pay and shorten the loan term.
If you pay off the loan early, you will not owe the remaining interest. Some lenders charge a prepayment penalty, but federal law limits these penalties on car loans, and many lenders do not charge them at all. Check your loan agreement to see whether a penalty applies.
Frequently Asked Questions
Can I get a lower rate if I put down a larger down payment?
A larger down payment reduces the amount you borrow, which lowers your monthly payment and total interest cost. However, it does not change the interest rate itself—the lender will offer you the same percentage rate whether you put down 10 percent or 30 percent. The benefit of a larger down payment is that you owe less money overall, not that you receive a better rate.
What is the difference between APR and interest rate?
The interest rate is the percentage cost of the loan itself. The APR (annual percentage rate) includes the interest rate plus other costs like origination fees, documentation fees, and dealer fees, expressed as an annual rate. The APR is always equal to or higher than the interest rate. Lenders must disclose both numbers, and you should compare APRs when shopping between lenders because it gives you the true cost of borrowing.
Should I get preapproved before I go to the dealership?
Yes. Getting preapproved from a bank or credit union shows you what rate you can receive and gives you a firm offer to bring to the dealership. The dealership can then try to match or beat that rate, but you have a baseline and are not negotiating blind. Preapproval also strengthens your negotiating position on the vehicle price itself.
What if my rate seems too high compared to what others are getting?
Your credit score, income, debt-to-income ratio, and the vehicle you are buying all affect the rate you receive. If your score is lower than you expected, request a free copy of your credit report from annualcreditreport.com and look for errors. If you find mistakes, dispute them with the credit bureau. If your score is accurate but low, waiting a few months while you pay down debt and make on-time payments will raise it before you explore again.
Can I negotiate the interest rate at the dealership?
The interest rate itself is set by the lender, not the dealership, so you cannot negotiate it the way you negotiate the vehicle price. However, the dealership may mark up the rate by 1 to 3 percentage points and keep the difference. If you have a preapproval offer, the dealership knows you have another option and may not mark up as much. Always compare the dealership's final offer to your preapproval before signing.