Car refinance rates depend on your credit score, the age of your car, and which lender you approach — not on a single "lowest" rate that applies to everyone

There is no universal lowest car refinance rate. Instead, rates vary by lender, by the terms you choose, and most heavily by your credit profile. A borrower with a 750 credit score will see rates 2 to 3 percentage points lower than someone with a 650 score, even when both explore to the same lender on the same day. The age and mileage of your car also matter: lenders charge more to refinance a nine-year-old vehicle than a three-year-old one, because older cars are worth less and harder to repossess if you stop paying.

What you can control is where you look and what terms you accept. Banks, credit unions, online lenders, and your current car loan servicer all set their own rates. Shopping across at least three to five of them takes an hour and can save you hundreds of dollars over the life of the loan. The rate you see advertised is usually the best-case rate — the one offered to borrowers with excellent credit and a newer vehicle. Your actual rate will likely be higher, but knowing the range helps you spot a genuinely competitive offer.

Key Takeaways

  • Your credit score is the single largest factor in the rate you receive; scores above 740 typically unlock the lowest rates available, while scores below 650 face rates 3 to 5 percentage points higher.
  • Credit unions often offer lower rates than banks and online lenders, but membership is required and approval standards vary by institution.
  • The age and mileage of your car affect the rate you are offered; cars older than seven years or with more than 100,000 miles face higher rates or may not be refinanceable at all.
  • Shopping with multiple lenders takes one to two hours but typically saves $500 to $2,000 over the loan term compared to refinancing with your current servicer.
  • Your current loan balance, the remaining term, and how much equity you have in the car all determine whether refinancing makes financial sense for your situation.

How lenders set refinance rates

Lenders base refinance rates on four concrete factors: your credit score, the loan-to-value ratio (how much you owe versus what the car is worth), the age and mileage of the vehicle, and current market rates. Credit score is weighted most heavily. A score of 750 or higher typically qualifies for the advertised "best" rate. Scores between 700 and 749 usually see rates 0.5 to 1 percentage point higher. Scores between 650 and 699 face rates 1.5 to 3 percentage points higher. Below 650, rates jump sharply, and some lenders will not refinance at all.

The loan-to-value ratio matters because it determines the lender's risk if you default. If you owe $15,000 on a car worth $18,000, you have positive equity and the lender can recover their money by selling the car. If you owe $18,000 on a car worth $15,000, you are underwater, and the lender absorbs the loss. Underwater loans are harder to refinance and carry higher rates when available. Vehicle age and mileage work similarly: a 2022 car with 30,000 miles is easier to refinance than a 2017 car with 120,000 miles, because the newer car retains more value and is less likely to need expensive repairs.

Where to shop for refinance rates

The four main sources of car refinance loans are banks, credit unions, online lenders, and your current loan servicer. Banks offer rates that vary by your credit profile and the vehicle, but they typically require you to have an existing relationship with the bank or meet a minimum credit score (often 660 or higher). Credit unions usually offer the lowest rates available, but membership is required and approval standards differ by union. Some credit unions serve only employees of a specific company or members of a specific profession; others are open to anyone in a geographic area or with a connection to a particular organization.

Online lenders like LendingClub, Upgrade, and Lightstream can move quickly and sometimes work with lower credit scores, but their rates are often higher than banks or credit unions. Your current loan servicer — the company you send payments to — will refinance your loan, and the process is straightforward because they already have your information. However, they have little incentive to offer you their best rate, since you are already a customer. Shopping elsewhere first gives you a benchmark to compare against their offer.

To shop effectively, gather your vehicle's current market value (use Kelley Blue Book or NADA Guides with your car's exact year, make, model, mileage, and condition), your current loan balance, and your credit score. Then contact at least three to five lenders and ask for a rate quote. Most will give you a preliminary rate without a hard credit pull; a few may require one. Hard pulls lower your score slightly, but multiple pulls for the same type of loan (car refinance) within 14 to 45 days typically count as a single inquiry, depending on the credit bureau.

How your credit score shapes the rate you receive

Your credit score is a three-digit number that summarizes your history of borrowing and repaying money. It ranges from 300 to 850, and lenders use it to predict whether you will repay a new loan. The higher your score, the lower the rate you receive. A 50-point difference in credit score can mean 0.5 to 1 percentage point difference in your refinance rate, which translates to hundreds of dollars over a five-year loan.

Your score is built from five components: payment history (35 percent of the score), amounts owed (30 percent), length of credit history (15 percent), credit mix (10 percent), and recent inquiries (10 percent). If you have missed payments on your current car loan, credit cards, or other debts, your score will be lower and refinance rates will be higher. If you have paid on time for years, your score will be higher. Paying down credit card balances before you explore for refinance can raise your score by 10 to 50 points, because it lowers your credit utilization ratio.

If your credit score is below 650, refinancing may not be worth pursuing, because rates will be high enough that the monthly savings may not offset the cost of the refinance itself. In that case, focus on paying down your current loan balance and building your credit score for six to twelve months, then refinance later. If your score is between 650 and 700, refinancing can still save money, but shop carefully and calculate the break-even point — the month when your savings exceed the cost of refinancing.

When refinancing makes financial sense

Refinancing saves money only when the new rate is low enough to offset the cost of refinancing and the remaining term of your loan is long enough for the savings to add up. Most refinances cost $0 to $300 in fees, though some lenders charge process, appraisal, or title fees. If you are refinancing a $15,000 loan and the new rate saves you $50 per month, you break even after six months and save money every month after that. If the new rate saves you only $20 per month, you break even after 15 months.

The math changes if you are near the end of your loan. If you have only 12 months left to pay, refinancing rarely makes sense, because you will not have enough time to recoup the refinancing costs. If you have 36 months or more remaining, refinancing is usually worth exploring. Use an online refinance calculator to estimate your monthly savings, then subtract the refinancing costs to find your true break-even point.

Refinancing also makes sense if your financial situation has improved since you took out the original loan. If you had a lower credit score when you bought the car, your score may have risen enough to may have access to for a significantly lower rate. If you have paid down the loan balance substantially, your loan-to-value ratio has improved and lenders will offer better rates. If interest rates in the broader economy have fallen, refinancing captures that benefit.

Vehicle age and mileage limits

Most lenders will not refinance cars older than 10 years or with more than 150,000 miles, because the vehicle's value is too low and the risk of mechanical failure is too high. Some lenders are stricter: they will not refinance cars older than 7 years or with more than 100,000 miles. A few lenders, particularly credit unions and some online lenders, will work with older vehicles, but rates will be higher.

If your car is close to these limits, contact lenders before you formally explore. Most will tell you over the phone whether they will consider your vehicle. If your car is too old or has too many miles for traditional lenders, your current loan servicer may be your only option, or you may need to wait until your car is paid off and then refinance the remaining balance with a personal loan instead.

Comparing offers and making a decision

Once you have collected rate quotes from multiple lenders, compare them on three dimensions: the interest rate, the loan term, and the total cost. A lower rate is not always the best choice if it comes with a longer term. A 4.5 percent rate over 72 months may cost more in total interest than a 5.0 percent rate over 60 months, even though the rate is lower. Use the lender's loan estimate or a refinance calculator to compare the total amount you will pay under each option.

Read the loan estimate carefully for fees, prepayment penalties, and other terms. Some lenders charge a penalty if you pay off the loan early; others do not. Some charge an process fee; others do not. These details affect the true cost of refinancing. Once you have chosen a lender, you will provide proof of insurance, sign loan documents, and the lender will pay off your current loan directly. The process typically takes 5 to 10 business days from approval to funding.

Frequently Asked Questions

What credit score do I need to refinance my car?

Most lenders require a credit score of 660 or higher, though some credit unions and online lenders work with scores as low as 600. Scores below 650 face significantly higher rates. If your score is below 660, contact credit unions in your area first, as they often have more flexible standards than banks.

Can I refinance if I still owe more than the car is worth?

Yes, but it is harder and rates will be higher. You are underwater, meaning the car's value is less than your loan balance. Some lenders will not refinance underwater loans at all. Others will, but only at rates 1 to 3 percentage points higher than they would offer for a car with positive equity. Paying down the balance before refinancing can move you into positive equity.

How long does a car refinance take?

From initial process to funding typically takes 5 to 10 business days. The lender will request documents (proof of insurance, vehicle registration, proof of income), verify your information, order a title search, and then fund the loan and pay off your current lender. Some online lenders move faster; others take longer.

Will refinancing hurt my credit score?

Refinancing causes a small, temporary drop in your credit score when the lender pulls your credit report. The drop is usually 5 to 10 points and recovers within a few months. The long-term impact is positive if you make on-time payments on the new loan, because it adds to your credit mix and payment history.

What happens to my current loan when I refinance?

The new lender pays off your current loan in full, and your old lender closes the account. You then make payments to the new lender instead. The car's title remains in your name; only the lender listed on the title changes. This process is handled by the lenders and the title company, not by you.