Used car loan rates depend on your credit score, the car's age and mileage, the loan term you choose, and the lender you work with
The rate you receive on a used car loan is not set by the dealer or the manufacturer — it comes from the lender, whether that's a bank, credit union, or the dealer's finance partner. Your credit score is the single largest factor. A borrower with a score above 750 might see rates around 4% to 6%, while someone with a score below 620 could face 10% to 15% or higher. The age and condition of the car matter too: a five-year-old vehicle with 60,000 miles will draw a lower rate than a ten-year-old car with 120,000 miles, because older cars are riskier to lend against. The length of your loan also affects the rate — a 36-month loan typically carries a lower rate than a 72-month loan for the same borrower and vehicle.
Rates also vary by lender. Credit unions often offer lower rates than banks for their members, and banks often beat dealer financing. Shopping across at least three lenders before you buy gives you real numbers to compare, not estimates. Your rate is locked in only when you sign the loan documents, so getting pre-approved at your bank or credit union before you visit the dealership puts you in a stronger position to negotiate.
Key Takeaways
- Your credit score is the primary driver of your rate; scores above 750 typically receive rates 5 to 10 percentage points lower than scores below 620.
- Used cars older than seven years or with more than 100,000 miles usually carry higher rates because lenders view them as higher risk.
- Credit unions and banks typically offer lower rates than dealer financing, so getting pre-approved before shopping gives you leverage.
- A 36-month loan term usually carries a lower rate than a 60-month or 72-month term, but the monthly payment will be higher.
- Your rate is not final until you sign the loan contract; dealer financing offers may change after you leave the lot.
How credit score directly affects your rate
Lenders use your credit score to estimate the risk that you will default on the loan. A higher score signals a history of on-time payments and lower debt relative to your income. The relationship is not linear — the difference between a 650 and a 700 score is often larger than the difference between a 750 and an 800 score, because lenders have more confidence in borrowers above 700.
Credit scores range from 300 to 850. Most lenders have a minimum score to lend at all — many banks require 620 or higher, while credit unions may go lower. If your score is below 620, you may need a co-signer or a larger down payment to be considered. Checking your own credit report before you shop for a car lets you spot errors and understand what lenders will see. You can obtain a free credit report once per year from AnnualCreditReport.com, which is the only federally authorized source.
Vehicle age, mileage, and loan term as rate factors
Lenders set rates partly on the value and reliability of the collateral — the car itself. A used car loses value as it ages and accumulates miles. A car that is five years old with 50,000 miles is worth significantly more than a ten-year-old car with 120,000 miles, so the lender's risk is lower. Most lenders begin to charge noticeably higher rates for cars older than seven years or with more than 100,000 miles, because repair costs become less predictable and resale value drops sharply.
The length of your loan also affects your rate. A 36-month loan means the car is paid off while it still has reasonable value; a 72-month loan extends into years when the car's value may fall below what you owe. Lenders charge higher rates for longer terms to offset this risk. The difference between a 48-month and a 72-month rate can be 1 to 2 percentage points, so comparing the total interest you'll pay — not just the monthly payment — matters more than the rate alone.
Where you borrow from shapes your rate
Three main sources offer used car loans: credit unions, banks, and dealer financing. Credit unions are member-owned and often price loans to keep money within the membership, so their rates are frequently the lowest. Banks compete on rate but may require higher credit scores or larger down payments. Dealer financing is convenient — you complete the paperwork at the lot — but the rate is usually higher because the dealer is marking up the loan or working with a lender that charges more.
Getting pre-approved at your bank or credit union before you shop gives you a firm rate offer and a maximum loan amount. When you arrive at the dealership with a pre-approval letter, you can compare the dealer's offer against your bank's rate. If the dealer's rate is higher, you can decline and use your bank's loan. If the dealer matches or beats your rate, you have confirmation that you're getting a competitive offer. Many dealers will work harder to match a pre-approval rate than to offer their best rate to an unshopped buyer.
Down payment and its effect on rate and terms
A larger down payment reduces the amount you need to borrow, which lowers the lender's risk. A 20% down payment is often the threshold where lenders begin to offer their best rates; below 10%, many lenders charge a premium. Putting down 20% on a $15,000 car means borrowing $12,000 instead of $13,500, and that difference can lower your rate by 0.5 to 1 percentage point.
Down payment also affects loan approval if your credit is weak. If your score is below 650, a lender may require 15% to 20% down to approve you at all, or may approve you only at a much higher rate. Saving for a larger down payment before you shop can mean the difference between being declined and being approved, or between a 12% rate and an 8% rate.
How to compare rates across lenders
Start by checking your credit score and obtaining your credit report. Then contact at least three lenders — your bank, a credit union you belong to or are near, and one online lender. Tell each one the same information: your credit score, the price of the car you're considering, the down payment you plan to make, and the loan term you want. Ask for a rate quote in writing, not a range. A written quote is usually good for 30 to 45 days and does not affect your credit score (a "soft pull" rather than a "hard pull").
Compare the annual percentage rate (APR), not just the interest rate. The APR includes fees and is the true cost of borrowing. A loan with a 5.5% APR is cheaper than one with a 5% interest rate plus $500 in origination fees. Once you have chosen a lender and found a car, the lender will do a hard credit pull and may adjust the rate slightly based on the final details, but the written quote gives you a floor to expect.
Rate changes after you sign the contract
Dealer financing sometimes includes a clause allowing the dealer to adjust your rate after you drive the car home, usually within 10 days. This happens when the dealer's finance partner (the bank or lender) declines the loan or offers a different rate than the dealer quoted. If your rate increases after you sign, you have the right to refuse and return the car, though some states limit this window. Reading the fine print of your contract before you sign protects you from surprises.
Bank and credit union loans do not change after you sign. Once you receive a loan approval and sign the promissory note, your rate is locked in. This is one reason pre-approval from a bank or credit union is valuable — you know your rate will not move. If you finance through the dealer and the rate changes, contact the dealer's finance manager when ready and ask whether you can use your pre-approval from your bank instead.
Frequently Asked Questions
What credit score do I need to get a used car loan?
Most banks require a score of 620 or higher, though some will go lower with a co-signer or larger down payment. Credit unions often have more flexible minimums. Scores below 600 may face rates of 12% or higher or may be declined entirely. Checking your score before you shop tells you what to expect.
Will my rate be lower if I pay cash instead of financing?
No. The dealer's price is separate from how you pay it. Paying cash does not lower the purchase price. However, financing a used car at a high rate (10% or more) costs you significantly more over time, so if you have the cash and the rate is high, paying cash may make financial sense depending on your other financial goals.
Can I refinance my used car loan later if rates drop?
Yes. If interest rates fall or your credit score improves, you can refinance the loan at a new lender. The new lender pays off your old loan, and you begin a new loan at the new rate. Refinancing makes sense if the new rate is at least 1 to 2 percentage points lower and you have at least two years left on the original loan, because refinancing has closing costs.
Why is the dealer's financing rate higher than my bank's rate?
Dealers often work with captive finance companies (owned by the car manufacturer) or third-party lenders that charge the dealer a wholesale rate, then the dealer marks it up for profit. Banks and credit unions price loans directly to consumers without a middleman markup. Shopping your rate before you visit the dealer shows you the true market rate.
Does a longer loan term always mean a higher rate?
Usually, yes. A 72-month loan typically carries a rate 0.5 to 2 percentage points higher than a 36-month loan for the same borrower and car. However, the monthly payment is lower on the longer term. The trade-off is that you pay more total interest and carry the loan longer, but your monthly budget is easier to manage.