Refinance rates depend on your credit score, the car's age, and which lender you ask
The rate you get when you refinance a car loan is not set by any central authority — it comes from the individual lender you choose, based on how risky they think lending to you is. A lender looks at your credit score first: someone with a score above 750 will see rates around 4% to 6%, while someone with a score between 600 and 650 might see 8% to 12%. The age and mileage of the car matter too — lenders are more cautious about cars older than 10 years or with more than 120,000 miles, and they may charge more or decline to refinance altogether.
The second piece is where you look. Banks, credit unions, and online lenders all set their own rates. A credit union member might find a rate 1% to 2% lower than a bank customer with the same credit score, because credit unions operate as nonprofits and have lower overhead. Online lenders compete on speed and convenience but do not always offer the lowest rates. The only way to know what you will actually be offered is to get quotes from multiple places — and those quotes are free to request.
Your current loan balance and how much time is left on it also shape what refinance rates you will see. If you owe $8,000 on a car worth $10,000 with two years left on the loan, refinancing is straightforward. If you owe $15,000 on a car worth $10,000 (called being "underwater"), most lenders will not refinance you at all, because they have no collateral to recover if you stop paying.
Key Takeaways
- Your credit score is the single biggest factor in the rate you are offered — a 100-point improvement in your score can lower your rate by 2% to 3%.
- Credit unions typically offer lower rates than banks and online lenders, but you must be a member to borrow from them.
- The car's age, mileage, and how much you still owe compared to what it is worth all affect whether a lender will refinance you and at what rate.
- Getting quotes from at least three different lenders takes 15 to 30 minutes and costs nothing — the quotes do not affect your credit score.
- Refinancing makes sense only if the new rate is at least 1% lower than your current rate and you have more than 12 months left on the loan.
Why your credit score is the main lever you can control
Before you call a single lender, understand that your credit score is the number that moves most. If your score has improved since you took out the original loan — because you paid down debt, fixed errors on your report, or straightforward let time pass — you will see noticeably lower rates. A person who refinances with a score of 720 instead of 650 might drop from 9% to 6%, saving $1,500 or more over the life of the loan.
You can check your own credit score free through AnnualCreditReport.com, which is the official government site for the three credit bureaus (Equifax, Experian, and TransUnion). If your score is lower than you expected, look at your report for errors — missed payments you actually made, accounts that are not yours, or duplicate entries. You can dispute errors directly with the bureau at no cost, and fixing them can take 30 to 60 days.
If your score is accurate but low, refinancing now will not help much. Lenders will offer you a rate only slightly better than what you have. In that case, wait 6 to 12 months while you pay down other debts or let older negative marks age off your report, then refinance later when your score has climbed.
Where to get quotes and what to compare
Start with your current lender — the bank or credit union that holds your car loan now. They already know your payment history and may offer you a better rate without a hard credit inquiry. Then get quotes from at least two other places: a local credit union (if you are a member of one), a national bank, and one online lender. Each quote should show you the interest rate, the loan term (how many months), and the total amount you will pay back.
When you request a quote, lenders will ask for your name, address, the vehicle identification number (VIN) of your car, and how much you still owe. They use the VIN to confirm the car's age and mileage from title records. Requesting a quote triggers a "soft inquiry" on your credit, which does not lower your score. A hard inquiry (which does lower your score slightly) only happens if you formally explore for the loan.
Compare the quotes side by side using a straightforward table: lender name, interest rate, loan term in months, and the total interest you would pay. The lowest rate is not always the best deal if the term is much longer — a 7% rate over 72 months costs more in total interest than a 6.5% rate over 60 months, even though the monthly payment is lower. Use an online car loan calculator to see the total cost under each scenario.
Credit unions often beat banks and online lenders
Credit unions are member-owned financial institutions that operate as nonprofits, which means they pass savings to members instead of paying shareholders. In practice, this shows up as lower rates. A credit union member with a 700 credit score might see a refinance rate of 5.5%, while a bank customer with the same score sees 6.5%. Over a five-year loan, that 1% difference saves roughly $1,200.
The catch is that you must be a member to borrow from a credit union. Membership rules vary — some credit unions are open to anyone who lives or works in a certain county, others require you to work for a specific employer or belong to a specific organization, and some have no restrictions at all. You can search for credit unions near you at CO-OP.org or CUServiceCenters.org, which show you which ones you might join.
If you are not a credit union member and want to join one, the process takes a few days. You will need to provide proof of address and proof of may be able to access (like a pay stub or a utility bill). Once you are a member, you can when ready request a refinance quote. If you are already a member, call your credit union's auto lending department first — they often have special rates for existing members refinancing.
When refinancing actually saves you money
Refinancing only makes financial sense if two conditions are met: the new rate is at least 1% lower than your current rate, and you have at least 12 months left on your loan. If your current rate is 8% and you can get 7%, that is only a 1% drop, which is the minimum threshold. If you can get 6%, that is a 2% drop and clearly worth doing.
The reason the 12-month rule matters is that refinancing has costs. Your new lender will charge a loan origination fee (usually $0 to $300), and you may have to pay your old lender an early payoff fee (some do, some do not — check your loan documents). These costs add up to $200 to $500 in most cases. If you only have 6 months left on the loan, the interest you save will not cover those costs.
Use this rough math: multiply the difference in rates by your remaining loan balance, then divide by 12 to get your monthly savings. If you owe $12,000, your current rate is 8%, and you can refinance at 6%, your monthly savings is roughly $20. At that rate, you will break even on refinancing costs in 10 to 15 months. If you have 24 months left, you will save $240 to $360 after costs.
What happens after you choose a lender
Once you decide to refinance with a specific lender, you will formally explore. This triggers a hard inquiry on your credit, which lowers your score by a few points — usually 5 to 10 points, and the impact fades after three to six months. The lender will order a title search to confirm you own the car free and clear (or that their lien will be first in line if you still owe money to another lender).
The new lender pays off your old loan in full, and you begin making payments to the new lender. The whole process takes 5 to 10 business days. During this time, your car title is in transit between lenders, so you cannot sell the car or take out another loan against it. Your old lender will send you a final statement showing the payoff date and any remaining balance.
After refinancing, your monthly payment will change — usually it goes down, but the exact amount depends on the new rate and the new term you chose. If you keep your payment the same as before and use the extra money to pay down the principal faster, you will pay off the loan sooner and save even more in interest.
Reasons a lender might decline to refinance you
The most common reason is being underwater on the loan — owing more than the car is worth. If you owe $14,000 on a car worth $12,000, lenders see no collateral and will decline. Some lenders will refinance you anyway if your credit score is very high (750+) or if you agree to a longer loan term, but most will not.
The second reason is the car's age or mileage. Most lenders will not refinance cars older than 10 years or with more than 120,000 miles, because the car is likely to break down before the loan is paid off. Some lenders have higher limits — up to 15 years old or 150,000 miles — but they charge higher rates to compensate for the risk.
The third reason is a recent missed payment or default on your current loan. If you have been late on payments in the last 12 months, most lenders will decline. If you have been late but it was more than 12 months ago, some lenders will still work with you, though at a higher rate.
Frequently Asked Questions
Does refinancing hurt my credit score?
Requesting quotes does not hurt your score (soft inquiries do not count). Formally explore for refinancing does lower your score by 5 to 10 points because it triggers a hard inquiry. The impact is temporary — your score recovers within three to six months. If you explore with multiple lenders within two weeks, the inquiries typically count as one inquiry for scoring purposes.
Can I refinance if I have bad credit?
Yes, but you will see higher rates — often 10% to 15% or more. Some online lenders and credit unions specialize in bad-credit refinancing. The math still applies: only refinance if the new rate is at least 1% lower than your current rate and you have 12+ months left on the loan. Sometimes waiting six months while you improve your score is smarter than refinancing now.
What if I want to change the loan term when I refinance?
You can refinance into a shorter term (paying off faster) or a longer term (lowering the monthly payment). A shorter term means higher monthly payments but less total interest paid. A longer term lowers your payment but costs more in total interest. The lender will show you both options when you get your quote.
Do I need to tell my current lender I am refinancing?
No. Your new lender handles paying off the old loan automatically. You do not need permission from your current lender. However, it is a good idea to keep making your regular payment until you see the payoff on your account, just to avoid any late-payment marks while the refinance is processing.
What if rates drop after I refinance?
You can refinance again. There is no limit to how many times you can refinance a car loan. However, each refinance triggers a hard inquiry and costs $0 to $300 in fees, so it only makes sense if rates drop by at least 1% and you have 12+ months left on the new loan.