Where to refinance your car depends on your credit score and how much time you want to spend shopping

You can refinance a car through banks, credit unions, online lenders, and sometimes your current lender. Banks typically offer the lowest rates if you have good credit, but credit unions often beat them for people with fair credit or existing membership. Online lenders move faster and have looser credit requirements, though their rates are usually higher. Your current lender may refinance you without a hard credit pull, which saves time but rarely offers the best rate.

The real difference between these places is not just the interest rate — it is how long approval takes, what credit score they require, and whether they let you shop around without damaging your credit. A bank might take two weeks and require a 700+ score. A credit union might take three days and work with a 650 score. An online lender might approve you in hours but charge 2% more in interest over the life of the loan.

Key Takeaways

  • Banks offer the lowest rates for borrowers with good credit (typically 700+), but credit unions often have better rates for people with fair credit or existing members.
  • Credit unions typically approve refinancing faster than banks and may offer better terms even with a lower credit score.
  • Online lenders approve in hours or days with minimal documentation, but charge higher interest rates than traditional lenders.
  • You can shop multiple lenders within 14 days without each inquiry hurting your credit score, because the credit bureaus treat multiple auto inquiries as one.
  • Your current lender can often refinance you without a hard credit pull, saving time but usually not offering a competitive rate.

Banks: lowest rates, but strict credit requirements

Banks refinance car loans through their auto lending departments, and they compete aggressively on rate if you have a credit score of 700 or higher. Wells Fargo, Chase, Bank of America, and regional banks all offer auto refinancing. The process is straightforward — you provide your current loan details, vehicle information, and proof of insurance — and they pull your credit report.

The catch is timing and flexibility. Banks typically take 7 to 14 days to close a refinance, and they may require a vehicle inspection or appraisal if your car is older or has high mileage. If your credit score is below 700, most banks will decline you or offer a rate that is not meaningfully better than what you have now. Banks also usually require that you have owned the car for at least six months and that the loan balance is above a certain threshold (often $5,000 to $10,000).

The advantage is that banks are familiar to most people, their rates are transparent, and you can often refinance with your existing bank without starting from scratch. If you already bank somewhere, call their auto lending department first — they may offer you a small rate discount for being a customer.

Credit unions: faster approval and better rates for fair credit

Credit unions refinance car loans at rates that often beat banks, especially if your credit score is between 650 and 720. They also tend to approve faster — many credit unions can close a refinance in 2 to 5 business days. If you are not already a member, you may be able to join through your employer, a professional association, or by living in a certain area.

To find a credit union you can join, search the CO-OP Network or Alliant Credit Union's directory. Some credit unions let you open membership online in minutes; others require a visit to a branch. Once you are a member, the refinancing process is similar to a bank — you submit your loan details and vehicle information, they pull your credit, and they make an offer.

Credit unions often have lower overhead than banks, which means they can offer better rates to members. They also tend to be more flexible with credit scores and loan-to-value ratios. If you have a 15-year-old car with 180,000 miles, a credit union is more likely to refinance it than a bank. The downside is that credit union rates vary widely depending on which union you join, so you need to shop around.

Online lenders: fastest approval, highest rates

Online lenders like LendingClub, Upgrade, and SoFi refinance car loans and can approve you in hours. The process is entirely online, and many lenders will give you a rate quote without a hard credit pull, so you can see what you would pay before committing. If you proceed, they pull your credit and verify your vehicle information, usually through the DMV or your insurance company.

Online lenders work with credit scores as low as 600, and they do not require a minimum loan balance or a waiting period after purchase. Funding typically happens within 1 to 3 business days, and some lenders can deposit money directly to your current lender to pay off the old loan when ready. This speed is valuable if you need to refinance quickly or if you have been turned down by banks and credit unions.

The trade-off is rate. Online lenders charge 1% to 3% more in interest than banks or credit unions, on average. Over a five-year loan, that difference adds up. Online lenders also tend to have higher origination fees (the upfront cost to process the loan), which can be 1% to 5% of the loan amount. Before you commit, calculate the total cost of the loan, not just the monthly payment.

Your current lender: convenience without competition

Your current lender — the bank or credit union that issued your original auto loan — can often refinance you without a hard credit pull. This is called a streamline refinance, and it is the fastest option if you may have access to. Some lenders can approve and fund it in 24 to 48 hours.

The downside is that your current lender has no incentive to offer you a competitive rate. They know you are already their customer and that switching lenders takes effort. In most cases, your current lender's rate will be 0.5% to 1% higher than what you could get elsewhere. Use your current lender only if you are in a time crunch or if they offer a rate that is genuinely competitive with what you have found elsewhere.

How to shop without damaging your credit score

When you explore for a car refinance, the lender pulls your credit report, which creates a hard inquiry. Each hard inquiry can lower your credit score by a few points. However, the credit bureaus treat multiple auto loan inquiries as a single inquiry if they happen within 14 days. This means you can shop five different lenders in two weeks and see only one small dip in your score.

Start by getting rate quotes from online lenders (which often do not require a hard pull). Then explore to a bank and a credit union on the same day or within a day or two. This way, all your inquiries cluster together and count as one. Avoid explore to more than four or five lenders, because lenders see multiple applications as a sign that you are desperate or risky.

Keep track of the rates and terms each lender offers. Write down the interest rate, the loan term (36 months, 60 months, etc.), any origination fees, and the total amount you would pay over the life of the loan. The lowest monthly payment is not always the best deal — a longer loan term lowers the payment but costs you more in interest.

What documents you will need

Most lenders ask for the same basic information: your current loan account number, the vehicle identification number (VIN), your driver's license, and proof of insurance. Some lenders also ask for recent pay stubs or tax returns to verify your income, though many online lenders skip this step.

Have your current loan documents handy so you can answer questions about the loan balance, the interest rate, and the remaining term. If your car is financed through a dealership's captive lender (like Ford Credit or GM Financial), you will need the loan account number from your paperwork or online account.

Proof of insurance is required because lenders want to know the car is covered. Your current insurance card or a declaration page from your insurer works. If you are switching insurance companies as part of the refinance, you may need to provide proof of the new policy before the lender funds the loan.

Frequently Asked Questions

Does refinancing hurt my credit score?

Yes, but only temporarily. The hard inquiry lowers your score by a few points, and opening a new loan account temporarily lowers it further. However, if you make on-time payments on the new loan, your score usually recovers within a few months. The long-term benefit of a lower interest rate usually outweighs the short-term score dip.

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

Yes, but it is harder. If you owe $15,000 on a car worth $12,000, you are "underwater" on the loan. Most lenders will still refinance you, but they may charge a higher rate or require a larger down payment. Credit unions are more flexible with underwater loans than banks. Online lenders vary — some accept them, others do not.

What if I have bad credit?

Online lenders are your best option. They work with credit scores as low as 600 and approve quickly. Credit unions are your second choice — many have programs for people with fair or poor credit. Banks will likely decline you. Expect to pay a higher interest rate than someone with good credit, but refinancing may still save you money if your current rate is very high.

How long does refinancing take from start to finish?

Online lenders can fund in 1 to 3 days. Credit unions typically take 2 to 5 business days. Banks usually take 7 to 14 days. Your current lender can sometimes close in 24 to 48 hours. The timeline depends on how quickly you submit documents and whether the lender needs to verify anything with your state's DMV or your insurance company.

Will refinancing change my monthly payment?

Usually yes. If you refinance to a lower interest rate and keep the same loan term, your payment goes down. If you extend the loan term to lower the payment further, you pay more in total interest. If you shorten the term to pay off the loan faster, your payment goes up. You control this — the lender shows you the payment for each term length before you commit.