What refinancing an auto loan means and when it makes sense
Refinancing an auto loan means taking out a new loan to pay off your existing car loan. The new lender pays what you still owe, and you then make payments to the new lender instead of the original one. The main reason people refinance is to get a lower interest rate, which reduces your monthly payment or shortens how long you pay.
Refinancing makes the most sense if your credit score has improved since you took out the original loan, if interest rates have dropped in your market, or if you're carrying a high rate from a buy-here-pay-here dealer or a subprime lender. It also works if you have several years left on the loan — refinancing a car you're about to pay off usually costs more than it saves.
The trade-off is that refinancing resets your loan term. If you refinance a three-year-old five-year loan into a new five-year loan, you're extending how long you owe money, even if your monthly payment drops. Some people refinance into a shorter term to pay faster, but that raises the monthly payment unless the rate drop is steep.
Key Takeaways
- Refinancing works best when your credit score has risen or when market interest rates have fallen since you took out the original loan.
- Your new monthly payment depends on the interest rate you receive, the loan term you choose, and how much you still owe on the car.
- Banks, credit unions, and online lenders all offer auto refinancing, and rates vary significantly between them — shopping around takes a few hours and can save hundreds of dollars.
- The refinancing process typically takes one to two weeks from process to funding, and you keep driving your car throughout.
- Refinancing resets your loan term, so a lower payment might mean paying longer overall unless you shorten the term.
Who offers auto refinancing and how rates differ
Banks, credit unions, and online lenders all refinance auto loans. Credit unions often have lower rates than banks, especially if you're a member, but you have to join first — membership usually costs nothing and takes minutes online. Online lenders like LendingClub, Upgrade, and Lightstream can move quickly and don't require you to visit a branch, but their rates depend heavily on your credit score and the age of the car.
Your current lender — the bank or finance company holding your original loan — will also refinance you, but they rarely offer the best rate. They have no incentive to compete for your business since you're already paying them. Shopping at least three other lenders takes a few hours and often reveals rate differences of 1 to 3 percentage points, which translates to real money over the life of the loan.
When you request a rate quote, the lender will ask for your Social Security number and pull your credit report. This is a hard inquiry, which temporarily lowers your credit score by a few points. Multiple inquiries within 14 to 45 days (depending on the credit bureau) usually count as a single inquiry, so shopping around in a short window doesn't compound the damage.
What lenders look at when deciding your rate
Your credit score is the primary factor. Scores above 700 typically may have access to for rates in the 4 to 7 percent range, depending on the lender and market conditions. Scores between 600 and 700 might see rates of 7 to 12 percent. Below 600, refinancing becomes harder and rates climb, though some credit unions and subprime lenders still offer it.
The age and mileage of the car matter. Most lenders won't refinance a car older than 10 years or with more than 150,000 miles, though some credit unions are more flexible. A newer car with lower mileage gets a better rate because it holds value better and is easier to repossess if you stop paying.
How much you still owe compared to what the car is worth — called the loan-to-value ratio — also affects your rate. If you owe $15,000 on a car worth $18,000, that's a safer loan than owing $15,000 on a car worth $12,000. The worse your ratio, the higher your rate or the more likely a lender will decline you.
The step-by-step refinancing process
Start by getting your current loan payoff amount. Call your lender or log into your account online — the payoff is different from your remaining balance because it includes interest through the day you pay. Write down the exact amount and the account number.
Next, gather documents. You'll need proof of income (a recent pay stub or tax return), proof of residence (a utility bill or lease), and your driver's license. Have the vehicle identification number (VIN) and current mileage ready. Some lenders ask for proof of insurance as well.
Request quotes from at least three lenders. Most can give you a preliminary rate online or over the phone without a hard inquiry, though the final rate requires a credit pull. Compare the interest rate, the loan term, the monthly payment, and any fees — some lenders charge origination fees of $0 to $500.
Once you choose a lender and are approved, they'll contact your current lender to arrange payoff. The new lender sends the payoff amount directly to your old lender, and your loan transfers. You'll receive new loan documents and a new payment schedule. The whole process usually takes one to two weeks.
How to calculate whether refinancing saves you money
The math is straightforward: multiply your new monthly payment by the number of months in the new loan term, then subtract the payoff amount of your old loan. That's your total cost under refinancing. Do the same for your current loan — multiply your current payment by the remaining months. The difference is your savings or cost.
Example: You owe $12,000 on a loan at 9 percent with 48 months left. Your payment is roughly $290 per month, so your total cost is $13,920. A refinance offer gives you 48 months at 5.5 percent, which is about $265 per month, or $12,720 total. You save $1,200 before fees. If the new lender charges a $300 origination fee, your net savings is $900.
If you refinance into a shorter term to pay faster, the math changes. Refinancing into 36 months at 5.5 percent might be $355 per month, or $12,780 total — higher than the 48-month option, but you're done a year sooner and pay less interest overall. The choice depends on whether you prioritize a lower monthly payment or paying off the car faster.
Risks and situations where refinancing doesn't make sense
Refinancing costs money in the form of a hard credit inquiry, origination fees, and the time to process paperwork. If you're only a few months away from paying off the loan, refinancing rarely pays for itself. The same applies if you're underwater on the loan — owing more than the car is worth — because most lenders won't refinance you, and those who do charge much higher rates.
Extending your loan term to lower your payment means paying more interest overall. If you refinance a 36-month loan into a 60-month loan, your payment drops but you're paying interest for two extra years. This makes sense only if your financial situation genuinely requires the lower payment and you can't afford the original term.
If your credit score is still low or hasn't improved much since the original loan, refinancing may not get you a better rate. Some lenders charge fees that eat into any savings. Before explore, check your credit report at annualcreditreport.com to see what lenders will see and to catch errors that might be dragging your score down.
Alternatives if refinancing isn't available to you
If your credit is poor or your car is too old, traditional refinancing may not be an option. Some credit unions offer refinancing to members with lower credit scores, so joining a credit union and asking is worth the effort. A few online lenders specialize in subprime auto refinancing, though their rates are higher.
If refinancing isn't possible, you can still lower your payment by negotiating with your current lender. Some will modify the loan term or adjust the rate if you've been a reliable customer. It's worth a phone call, though they're under no obligation to help.
Another path is to pay down the principal faster by making extra payments toward the loan. This doesn't lower your monthly payment, but it reduces how much interest you pay and gets you out of debt sooner. Check your loan documents to confirm there's no prepayment penalty — most auto loans don't have one, but some older loans do.
Frequently Asked Questions
Will refinancing hurt my credit score?
Yes, but only temporarily. The hard inquiry lowers your score by a few points, and opening a new account initially reduces your average account age. Within a few months, as you make on-time payments on the new loan, your score usually recovers and often improves because you're paying down debt faster.
Can I refinance a car I'm still paying off?
Yes. You don't have to own the car outright. The new lender pays off your old loan, and the car remains collateral for the new loan. The title stays with the lender until you pay off the new loan completely.
What happens to my old loan if I refinance?
Your old lender is paid in full by the new lender, and that loan closes. You receive a final statement showing a zero balance. The new lender becomes your creditor, and you make payments to them instead.
How long does refinancing take?
From process to funding usually takes one to two weeks. Online lenders can move faster — sometimes within a few days — while banks may take longer. You keep driving your car throughout the process; the title transfer happens behind the scenes between lenders.
What if I have a loan from a buy-here-pay-here dealer?
These loans are harder to refinance because the dealer often holds the title and has strict terms. Some credit unions will refinance them, but you'll need to ask directly. The dealer may also charge a fee to release the title, which reduces your savings.