Refinance rates depend on your credit score, the car's age, and what lenders are offering this week
The rate you see advertised online is not the rate you will get. Refinance rates move daily and are locked to your credit profile the moment a lender pulls your report. A person with a 750 credit score might see 5.2% while someone with a 650 score sees 7.8% from the same lender on the same day. The age of your car, how much you still owe, and how long you want to borrow for all shift the number too.
The fastest way to know what you would actually receive is to contact lenders directly and let them run a soft inquiry — this checks your rate without damaging your credit score. You can do this with three to five lenders in a single afternoon. Hard inquiries (the kind that dock your score) only happen when you formally request a loan, so shopping around costs you nothing upfront.
Rates also vary by lender type. Credit unions often beat banks for members. Online lenders move faster but may charge origination fees. Your current auto lender might offer you a better rate than a competitor just to keep your business. The only way to know is to ask.
Key Takeaways
- Your actual refinance rate depends on your credit score, the vehicle's age and value, and current market rates — not just what you see advertised.
- You can contact multiple lenders for rate quotes without hurting your credit, as long as you do it within a two-week window (soft inquiries do not count against you).
- Credit unions, banks, online lenders, and your current auto lender all price refinances differently, so comparing at least three sources tells you what the market actually offers.
- The savings from refinancing come from a lower rate, a shorter loan term, or both — but refinancing costs money upfront, so the math only works if you keep the car long enough to break even.
What lenders look at when they set your rate
Your credit score is the single biggest factor. Most auto refinance lenders want a score of 620 or higher, though some will go lower. The difference between a 700 and a 750 can be half a percentage point or more. If your score has risen since you took out the original loan, refinancing becomes worth considering.
The age and mileage of the vehicle matter because older cars are riskier collateral. A lender will refinance a 2022 car more readily than a 2015 one, and at a better rate. Most lenders will not refinance cars older than 10 years or with more than 150,000 miles, though some go higher. Check the lender's rules before you spend time explore.
How much you still owe versus what the car is worth — called loan-to-value ratio — affects your rate too. If you owe $15,000 on a car worth $20,000, you are in good shape. If you owe $18,000 on that same car, the lender sees more risk and charges more. Being underwater (owing more than the car is worth) disqualifies you at most lenders.
Finally, current market rates set the floor. When the Federal Reserve raises interest rates, auto refinance rates rise too, usually within weeks. When rates fall, refinance offers improve. You cannot control this, but you can watch it: the average rate for a 60-month refinance moves week to week, and knowing the trend helps you decide whether to lock in now or wait.
Where to get rate quotes without damaging your credit
Start with your current lender. Call the number on your loan statement and ask what rate they would offer to refinance your existing loan. They already know your payment history and have your car's details on file, so this takes five minutes. Many lenders will beat a competitor's offer by 0.25% just to keep you.
Next, contact your bank or credit union if you have one. Credit unions often undercut banks on auto rates because they are member-owned and do not need to maximize profit. If you have been a member for at least a few months, you may may have access to for a better rate than a new customer would. Ask whether they offer a rate discount for direct deposit or automatic payments.
Then check one or two online lenders. Companies like LendingClub, Upgrade, and others let you enter your details on their website and receive a rate estimate in minutes. These are soft inquiries and will not affect your score. Online lenders often move faster than banks — some fund refinances within 24 hours — but read the fine print for origination fees, which can run 1% to 3% of the loan amount.
Do all your rate shopping within a two-week window. Credit bureaus treat multiple auto loan inquiries in a short period as a single inquiry for scoring purposes, so your credit score takes only one small hit instead of five. After two weeks, each new inquiry counts separately and damages your score more.
Understanding the costs of refinancing
Refinancing is not free. Most lenders charge an origination fee (usually 0% to 3% of the loan amount), and some charge a title transfer fee or documentation fee (typically $50 to $300). Your current lender may charge a prepayment penalty if you pay off the loan early — check your original loan documents or call and ask directly.
The math works like this: if you refinance $20,000 at a 1% origination fee, you pay $200 upfront. If your new rate is 1% lower than your old rate and you have 48 months left to pay, you save roughly $400 in interest over the life of the loan. That is a $200 gain after fees. But if you plan to sell the car in 12 months, you only save about $100 in interest, so refinancing costs you money.
Use a refinance calculator to run the numbers with your actual loan amount, current rate, new rate, and remaining term. Most lenders provide one on their website. The calculator will show you the break-even point — the month when your interest savings exceed your upfront costs. If that month is before you plan to sell or pay off the car, refinancing makes sense.
How to lock in a rate once you have found one
When you find a rate you want to take, the lender will ask you to formally request the loan. This is when they run a hard inquiry, which does show up on your credit report and lowers your score by a few points. Do not be alarmed — this is normal and expected. The score recovers within a few months as long as you make your new payments on time.
The lender will order a title search and may order a vehicle inspection or appraisal, depending on the car's age and value. This usually takes three to five business days. During this time, your rate is locked — it will not change even if market rates move. Once the lender confirms the car's details, they will send you loan documents to sign electronically or by mail.
After you sign, the lender pays off your old loan directly and funds the new one. Your old lender sends you a payoff letter confirming the loan is closed. You will have a new monthly payment, a new loan term, and a new lender (unless you refinanced with your current lender). The whole process typically takes one to two weeks from process to funding.
When refinancing makes sense and when it does not
Refinancing makes sense if your credit score has risen significantly since you took out the original loan, or if market rates have dropped and you locked in a high rate years ago. It also makes sense if you want to shorten your loan term — paying off a 72-month loan in 48 months, for example — even if the rate stays the same, because you save years of interest.
Refinancing does not make sense if you are underwater on the loan, if your credit score has not improved, or if you plan to sell the car soon. It also does not make sense if the new rate is only slightly lower than your current rate and you have few months left to pay. Run the numbers first; do not assume it will save you money.
One more caution: if you are behind on payments or your loan is in default, most lenders will not refinance you. Focus on catching up first, then explore refinancing once your account is current.
Frequently Asked Questions
How much will refinancing lower my monthly payment?
That depends on your new rate, your new term, and how much you still owe. Lowering your rate by 1% on a $20,000 loan typically saves $15 to $25 per month. Extending your term from 48 to 60 months saves more per month but costs more in total interest. Use the lender's calculator with your actual numbers to see the exact payment.
Can I refinance if I have bad credit?
Most mainstream lenders want a credit score of 620 or higher. If your score is lower, some credit unions or specialized lenders may still work with you, but expect a higher rate. Your best move is to wait a few months, pay down other debts, and dispute any errors on your credit report — even a 30-point improvement can lower your refinance rate by 0.5%.
What if my car is worth less than I owe?
Most lenders will not refinance if you are underwater. Some credit unions make exceptions for members with strong payment history. Your other option is to pay down the principal until you owe less than the car is worth, then refinance. This takes time but puts you in a position to refinance later.
How long does the refinance process take?
From process to funding typically takes one to two weeks. Online lenders sometimes fund within 24 to 48 hours. The longest part is usually the title search and vehicle verification. Ask the lender for an estimated timeline when you explore.
Will 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 lowers it slightly more. Your score recovers within three to six months as long as you make your new payments on time. The long-term benefit of a lower rate usually outweighs the short-term score dip.