What a car refinance rate is and why it matters

A refinance rate is the interest rate a lender charges when you replace your existing car loan with a new one. You keep the same car and owe the same amount of money, but you borrow from a different lender at a different rate. If the new rate is lower than your current one, you pay less interest over the life of the loan. If it's higher, you pay more.

The rate you receive depends on several factors about you and the loan itself — not on a single national number. Two people refinancing the same car model on the same day can receive different rates from the same lender.

Refinancing makes sense when rates have dropped since you took out your original loan, or when your credit score has improved enough that lenders now see you as lower risk. It can also make sense if you need to lower your monthly payment by extending the loan term, though that means paying interest for longer.

Key Takeaways

  • Your credit score is the single biggest factor lenders use to set your refinance rate — a higher score typically means a lower rate.
  • Refinance rates vary by lender, loan term, and how much you still owe on the car, so comparing offers from multiple lenders is necessary to find the best rate for your situation.
  • The interest rate you see advertised is not the rate you will receive; lenders show their best rates to attract customers, but your actual rate depends on your credit profile.
  • Refinancing costs money upfront (title transfer, process fees, sometimes appraisal fees), so you should calculate whether the monthly savings will cover those costs before you refinance.

The factors that determine your personal refinance rate

Credit score is the dominant factor. Lenders use your credit score to estimate how likely you are to repay the loan on time. A score of 750 or above typically qualifies for the lowest rates; a score below 650 typically qualifies for much higher rates. Your score reflects your payment history, how much credit you are currently using, how long you have had credit accounts open, and whether you have missed payments or defaulted on past loans.

Loan-to-value ratio (how much you owe compared to what the car is worth) also affects your rate. If you owe $15,000 on a car worth $20,000, your loan-to-value is 75 percent. If you owe $18,000 on the same car, it is 90 percent. The higher the ratio, the higher your rate, because the lender has less cushion if the car is repossessed and sold. You can improve this ratio by making a down payment toward the new loan, though that requires cash upfront.

Loan term (how many months you have to repay) affects your rate. A 36-month loan typically carries a lower rate than a 72-month loan, because the lender's money is at risk for a shorter time. A longer term lowers your monthly payment but increases the total interest you pay.

The lender you choose matters significantly. Banks, credit unions, online lenders, and captive finance companies (owned by car manufacturers) all set their own rates. Credit unions often offer lower rates to members than banks do. Online lenders may have faster approval but higher rates. Captive finance companies sometimes offer promotional rates to move inventory, but only on new cars, not refinances.

Current market conditions affect all rates. When the Federal Reserve raises its benchmark interest rate, lenders raise theirs too. When the Fed lowers rates, lenders typically lower theirs within weeks, though not always by the same amount.

How advertised rates differ from the rate you will actually receive

When you see "rates as low as 3.99%" in an advertisement, that rate goes to people with excellent credit, a low loan-to-value ratio, and a short loan term. It is a real rate that real people receive, but it is not the rate most people receive.

Lenders show their lowest rate to attract customers to their website or branch. Once you explore, they pull your credit report, verify your income, and assess the specific car and loan you are refinancing. Based on that information, they assign you a rate that reflects your actual risk profile. That rate is almost always higher than the advertised rate.

This is why getting quotes from multiple lenders is essential. Each lender uses slightly different criteria to set rates, so one lender may offer you 5.2 percent while another offers 5.8 percent for the same loan. Over a 60-month loan, that difference of 0.6 percentage points can mean hundreds of dollars in extra interest.

Where to get refinance rate quotes

You can receive quotes from several types of lenders. Banks include both national institutions (Chase, Bank of America, Wells Fargo) and local or regional banks. Most require you to have an existing account or meet minimum credit score requirements. Credit unions require membership but often offer lower rates than banks; if you are not already a member, you may be able to join through your employer, school, or community. Online lenders (LendingClub, Upstart, others) typically have faster approval and may work with lower credit scores, though rates are often higher. Captive finance companies (Ford Credit, GM Financial, Toyota Financial Services) primarily refinance their own brands but sometimes offer competitive rates.

When you request a quote, lenders perform a hard inquiry on your credit report, which temporarily lowers your score by a few points. Multiple hard inquiries within a short window (typically 14 to 45 days, depending on the credit bureau) count as a single inquiry for scoring purposes, so you can shop around without compounding damage to your score. After you receive quotes, you have time to decide before the inquiries age off your report.

Before you contact lenders, gather your current loan documents (the promissory note or loan agreement showing your current rate and remaining balance), your car's title or registration, and recent pay stubs or tax returns. Lenders will ask for this information during the quote process.

Costs and fees that reduce your savings

Refinancing is not free. You will typically pay an process fee ($0 to $300, depending on the lender), a title transfer fee (set by your state, usually $50 to $200), and sometimes a loan origination fee (a percentage of the loan amount, typically 1 to 2 percent). Some lenders charge an appraisal fee ($100 to $300) if they want an independent assessment of the car's value. A few lenders waive some or all of these fees to compete for business.

Before you commit to refinancing, calculate whether your monthly savings will cover these upfront costs. If your new rate saves you $50 per month and refinancing costs $400, you will break even after eight months. If you plan to keep the car for at least that long, refinancing makes financial sense. If you are planning to sell or trade in the car within a few months, refinancing will likely cost you money overall.

Some lenders roll these fees into the loan amount, so you do not pay them upfront but instead pay interest on them over the life of the loan. This lowers your when ready out-of-pocket cost but increases your total interest paid.

How refinancing affects your credit and your current loan

When you refinance, your original lender is paid off in full by the new lender. You then owe the new lender instead. Your original loan account closes, which can temporarily lower your credit score because it reduces the total amount of credit available to you. This effect is usually small and fades within a few months as you make on-time payments to the new lender.

The hard inquiries from shopping for rates will also lower your score slightly, but again, this effect is temporary. Within six months to a year of on-time payments to your new lender, your score typically recovers and often improves beyond where it was before refinancing.

You do not need permission from your current lender to refinance. Once the new lender pays off your loan, the old lender has no claim on the car. However, you should continue making payments to your current lender until you receive written confirmation that the loan has been paid off and the account is closed. Do not assume the new lender's first payment date means your old loan is already paid.

When refinancing makes sense and when it does not

Refinancing makes sense if your credit score has improved significantly since you took out your original loan, or if market rates have dropped more than 1 percentage point below your current rate. It also makes sense if you need to lower your monthly payment and are willing to extend the loan term to do so, though you should understand that you will pay more interest overall.

Refinancing does not make sense if you are planning to sell or trade in the car within a year, because the upfront costs will outweigh any savings. It also does not make sense if your credit score has not improved and rates have not dropped, because you will not receive a lower rate. If you are behind on your current loan or have missed recent payments, most lenders will not refinance you until you have made on-time payments for several months.

If you are struggling with your current car payment, refinancing to a longer term can lower your monthly payment, but it means paying interest for longer and potentially owing more than the car is worth. Before refinancing for payment relief, explore whether selling the car and buying a cheaper one, or using public transportation temporarily, might be a better long-term choice.

Frequently Asked Questions

What credit score do I need to refinance a car?

Most lenders will work with credit scores as low as 580 to 620, but rates for lower scores are significantly higher. Scores of 700 and above typically may have access to for competitive rates. If your score is below 620, you may have better luck with credit unions or online lenders, though you should compare rates carefully because they may be substantially higher than what borrowers with good credit receive.

How long does it take to refinance a car?

The process typically takes one to two weeks from process to funding. You submit your process and documents online or in person, the lender verifies your information and pulls your credit report, and then they send you a loan agreement to sign. Once you sign and return it, they contact your current lender to pay off the loan and send you new loan documents. Some online lenders can complete the process in three to five business days.

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

Yes, but it is more difficult and you will receive a higher rate. When you owe more than the car is worth, you are "underwater" on the loan. Most lenders will still refinance you, but they treat it as higher risk. You can improve your chances by making a down payment from your own funds to lower the loan-to-value ratio, or by waiting until you have paid down the loan enough that you owe less than the car is worth.

Will refinancing hurt my credit score?

Refinancing will lower your score temporarily by a few points due to the hard inquiries and the closing of your old loan account. This effect typically fades within three to six months as you make on-time payments to your new lender. Your score often ends up higher than it was before refinancing because you are demonstrating that you can manage multiple loans responsibly.

What happens to my old car loan when I refinance?

Your old loan is paid off in full by your new lender. The original lender releases their claim on the car, and you receive a new title reflecting the new lender as the lienholder (the party with a legal interest in the car). You should receive written confirmation that your old loan is closed; keep this document for your records.