The best place to refinance depends on what matters most to you
The best place to refinance your auto loan depends on what matters most to you: the lowest interest rate, the fastest approval, or keeping your loan with a lender you already know. Banks, credit unions, and online lenders all refinance auto loans, but they work differently. A traditional bank might offer stability and in-person service. A credit union often has lower rates if you're a member. An online lender might approve you in hours instead of days. The "best" choice is the one that matches your situation — your credit score, how much you owe, and what speed you need.
You don't have to refinance with the lender you currently use. In fact, shopping around almost always saves you money, because lenders compete for your business and each one prices their loans differently based on their own costs and risk appetite.
Key Takeaways
- Credit unions typically offer lower interest rates than banks, but you must be a member or become one to borrow from them.
- Online lenders can approve and fund a refinance in one to three business days, which matters if your current loan has a prepayment penalty.
- Traditional banks offer familiar service and may waive fees if you already bank there, but their rates are usually higher than credit unions.
- Your credit score, the age of your car, and how much you still owe all affect which lenders will work with you and what rate they'll offer.
- Getting quotes from at least three different types of lenders takes 15 to 30 minutes and costs nothing, because rate shopping doesn't hurt your credit score when done within 14 days.
Credit unions usually have the lowest rates
Credit unions are member-owned cooperatives, not profit-driven corporations, which is why they often charge less interest than banks. If you belong to a credit union already — through your employer, your school, or your neighborhood — you can refinance with them without extra steps. If you don't belong to one, you may be able to join. Some credit unions let you join by opening a savings account for $5 to $25, or by joining an organization they partner with (sometimes free, sometimes a small fee).
The catch is that credit unions have smaller networks than banks. You might not have a branch near you, and customer service hours may be limited. Many credit unions now offer online applications and funding, but not all. Before you start the process, call or visit their website to confirm they refinance auto loans and what their current rates are for your situation.
To find credit unions you might join, search the CO-OP Network or Alliant Credit Union's directory online. You can also ask your employer, school, or union whether they sponsor a credit union.
Online lenders move fastest and work with lower credit scores
Online lenders like LendingClub, Upgrade, and Lightstream approve and fund refinances in one to three business days. This speed matters if your current loan charges a prepayment penalty — the faster you refinance, the sooner that penalty stops accruing. Online lenders also tend to work with credit scores as low as 580 to 620, whereas many banks want 650 or higher.
The tradeoff is that online lenders' interest rates are usually higher than credit unions', though they're often competitive with banks. You'll also have no physical location to visit and no phone support at all hours — most online lenders use email and chat during business hours. Read reviews on Trustpilot or the Better Business Bureau before you move forward, because online lenders vary widely in how they treat customers.
Online lenders pull your credit report as part of the process, which does create a small, temporary dip in your score. That dip recovers within a few weeks and doesn't affect your ability to refinance elsewhere if you shop around within 14 days.
Traditional banks offer familiarity and fee waivers
If you already have a checking or savings account at a bank, refinancing your auto loan there can simplify your finances — one login, one statement, one customer service line. Some banks waive origination fees (typically $0 to $300) if you're an existing customer, which can save you money even if their interest rate isn't the lowest.
Banks like Chase, Bank of America, and Wells Fargo refinance auto loans, but their rates tend to be higher than credit unions and sometimes higher than online lenders. They usually require a credit score of 650 or above and may take five to seven business days to approve and fund. If you have a relationship manager or a branch you visit regularly, they can sometimes move your process faster.
Call your bank's auto loan department directly to ask about their current refinance rates. Don't rely on their website, because rates change daily and the site may not show your specific offer.
How to compare offers from different lenders
Get rate quotes from at least three lenders — one credit union, one online lender, and one bank. Most lenders let you get a quote online without a hard credit pull, which means no damage to your score. When you're ready to move forward with one lender, they'll do a hard pull, but that's normal and expected.
When you compare quotes, look at the interest rate, the loan term (36, 48, 60 months, etc.), and any fees. A lower rate over a longer term might cost you more in total interest than a slightly higher rate over a shorter term. Use an auto loan calculator to see the total amount you'll pay under each scenario.
Write down the offer details — rate, term, monthly payment, and any fees — from each lender. Lenders' quotes are usually good for 7 to 14 days, so you have time to decide without pressure.
Your credit score, car age, and loan balance affect your options
Lenders look at three main things: your credit score, how old your car is, and how much you still owe compared to what the car is worth. If your credit score is below 620, online lenders and some credit unions may be your only options. If your car is more than 10 years old or has very high mileage, some lenders won't refinance it at all, regardless of your credit. If you owe more than the car is worth (you're "underwater"), most lenders will still work with you, but your interest rate will be higher.
Before you reach out to lenders, check your credit score using a free tool like Credit Karma or AnnualCreditReport.com. This doesn't hurt your score and tells you what lenders will see. If your score is lower than you expected, you might wait a few months to refinance while you pay down other debts or dispute errors on your report.
Watch for prepayment penalties on your current loan
Before you refinance, call your current lender and ask whether your loan has a prepayment penalty. This is a fee they charge if you pay off the loan early. Some loans have no penalty. Others charge a flat fee (like $200) or a percentage of the remaining balance (like 1 percent). If the penalty is high, it might eat up the savings you'd get from a lower interest rate, so do the math first.
If your current lender charges a penalty, an online lender's speed becomes valuable — the sooner you refinance, the less interest accrues under the old loan. Ask the new lender whether they can pay off your old loan within a few days of approval, or whether there's a delay between when they fund you and when they send money to your current lender.
Frequently Asked Questions
Does shopping around for refinance rates hurt my credit score?
Rate shopping within 14 days counts as a single inquiry, so multiple lenders checking your credit has minimal impact — usually a 5-point dip that recovers within weeks. After 14 days, each new inquiry is counted separately and affects your score more. Get all your quotes within a two-week window.
Can I refinance if I'm behind on my current loan?
Most lenders won't refinance if you're currently behind on payments. Bring your account current first, then wait one or two months before reaching out. Some credit unions are more flexible, so it's worth calling to ask about their specific rules.
What if my car is worth less than what I owe?
You can still refinance, but lenders will charge you a higher interest rate because the loan is riskier for them. Compare the new rate to your current rate — sometimes the lower rate still saves you money even with the higher risk premium.
How long does the refinance process take from start to finish?
Online lenders typically take one to three business days. Credit unions and banks usually take five to seven business days. The timeline includes your process, the lender's review, the hard credit pull, and funding to your old lender's account.
Should I refinance with my current lender?
Your current lender may offer you a rate without a hard credit pull, which is convenient. But they have no reason to offer you their best rate — you're already a customer. Always get quotes from at least one other lender to see what the market is offering. You might be surprised.