What refinancing a car loan means and when it makes sense
Refinancing a car loan means replacing your current loan with a new one from a different lender. You pay off the old loan in full with money from the new loan, then make payments to the new lender instead. The goal is usually to get a lower interest rate, which reduces your monthly payment or the total amount you pay over the life of the loan.
Refinancing makes the most sense if your credit score has improved since you took out the original loan, if interest rates have dropped, or if you're struggling with your current payment. It's less useful if you're deep into the loan (most of your payment goes toward interest early on, so refinancing late saves little), or if you owe more than the car is worth.
The process takes one to three weeks from process to funding. During that time, your old lender still owns the car, so you keep making payments to them until the new lender pays them off. You'll need the car's title, your current loan documents, proof of insurance, and proof of income.
Key Takeaways
- Refinancing replaces your current car loan with a new one, usually at a lower interest rate, which reduces what you owe each month.
- Banks, credit unions, and online lenders all offer car refinancing, and rates vary significantly between them—shopping around can save hundreds of dollars.
- You'll need your current loan details, the car's title, proof of insurance, and proof of income to start the process.
- A higher credit score, lower interest rates in the market, or a shorter loan term can all make refinancing worthwhile, but refinancing late in a loan or when you owe more than the car is worth usually saves little.
Where to refinance and what rates you might find
You can refinance through banks, credit unions, or online lenders. Banks are familiar to most people but often have stricter credit requirements. Credit unions typically offer lower rates to members and are more flexible with credit scores, but you have to be a member first. Online lenders move quickly and may work with lower credit scores, but rates vary widely.
Interest rates depend on your credit score, the age and mileage of the car, how much you still owe, and current market conditions. Someone with a credit score above 700 might find rates between 4% and 7%, while someone with a score below 650 might see rates between 8% and 12%. These are not fixed ranges—they change with the market and differ by lender.
Before you commit to any lender, get quotes from at least three. Most lenders let you check your rate without a hard credit inquiry, which means it won't affect your credit score. Once you choose a lender and they do a hard inquiry, that will show on your credit report, but multiple inquiries for the same type of loan (car refinancing) within 14 to 45 days usually count as one inquiry for credit scoring purposes.
Documents you'll need to gather
Start by collecting your current loan paperwork—your lender should have sent you a loan agreement when you first borrowed. You'll also need the car's title (the document proving ownership), your vehicle identification number (VIN), and the current mileage. Most lenders ask for this information online or over the phone before you formally explore.
Next, gather proof of income. A recent pay stub works for salaried employees. If you're self-employed, you may need tax returns from the past two years. You'll also need proof of insurance—your insurance company can email or mail this to you, and it usually takes a day or two. Finally, have your Social Security number and driver's license ready.
Some lenders ask for proof of residency (a utility bill or lease agreement) and bank statements showing you have money to cover the first payment. The exact list varies by lender, so ask what they need before you start gathering documents.
How the refinancing process works, step by step
The process begins with a rate quote. You provide basic information—your credit score range, the car's year and mileage, how much you owe, and your desired loan term—and the lender tells you an estimated rate. This is not a commitment. If you like the rate, you move to a formal process.
During the formal process, the lender does a hard credit inquiry and asks for the documents listed above. They verify your income, check the car's value using its VIN and mileage, and confirm you have insurance. This step usually takes two to five business days. The lender then sends you a loan offer with the final rate, monthly payment, and loan term.
Once you accept the offer, the lender orders the payoff amount from your current lender. Your new lender then pays off the old loan in full—this is called "paying off the lien." Your old lender releases the title, and your new lender becomes the lienholder (the legal owner until you pay off the new loan). You start making payments to the new lender on the date they specify, usually within a week or two of funding.
When refinancing saves you money and when it doesn't
Refinancing saves the most money early in your loan. If you're in the first two years of a five-year loan, refinancing to a lower rate can cut hundreds of dollars from your total cost. The math changes if you're already three or four years in—by then, most of your payment has gone toward interest, so a lower rate on the remaining balance saves less.
Refinancing also costs money upfront. Some lenders charge process fees (typically $50 to $200), and some charge prepayment penalties if your current lender charges you for paying off early. Check your current loan documents for prepayment penalties. If your current lender charges one, subtract that cost from your expected savings to see if refinancing still makes sense.
A general rule: if you can lower your rate by at least 1% and you have at least two years left on the loan, refinancing usually pays for itself. If you're planning to sell or trade in the car within a year, refinancing rarely makes sense because you won't keep the loan long enough to recoup the costs.
What happens if you owe more than the car is worth
If you owe $15,000 on a car worth $12,000, you're "underwater" or "upside down" on the loan. Most lenders won't refinance an underwater loan because if you stop paying, they can't recover their money by selling the car. Some credit unions and specialized lenders will refinance underwater loans, but they charge higher rates to offset the risk.
If you're underwater, you have a few options. You can wait until the car's value rises or you pay down the loan enough to be right-side up. You can make a large down payment from savings to cover the gap. Or you can look for a lender that specializes in underwater refinancing, though expect a higher rate than you'd get on a standard refinance.
Before you assume you're underwater, check the car's value on Kelley Blue Book or NADA Guides using your car's year, make, model, mileage, and condition. These sites give a range, and your car's actual value depends on its specific condition and local market.
How refinancing affects your credit score
When a lender does a hard credit inquiry for refinancing, your score drops slightly—usually 5 to 10 points. This is temporary. As long as you make on-time payments on the new loan, your score recovers within a few months. Opening a new loan account also lowers your average account age, which can dip your score a few more points, but this effect fades over time.
The bigger impact on your credit comes from your payment history. Missing a payment on the new loan will hurt your score far more than the initial inquiry did. Making all payments on time actually helps your score because it shows you can manage credit responsibly.
If you're planning to explore for a mortgage or another major loan within the next few months, refinancing your car might not be ideal timing. But if you're not borrowing soon, the temporary score dip is worth the savings from a lower rate.
Frequently Asked Questions
Can I refinance if I have bad credit?
Yes, but you'll pay a higher interest rate. Credit unions and some online lenders work with credit scores below 600, though rates may be 10% or higher. If your score is very low, waiting a few months to pay down debt or dispute errors on your credit report might get you a better rate than refinancing when ready.
What if my current lender charges a prepayment penalty?
Check your loan documents for the penalty amount—it's usually a percentage of the remaining balance or a set number of months' interest. Subtract this from your expected savings to see if refinancing still makes sense. Some lenders will pay the penalty for you as part of the refinance deal, so ask.
How long does refinancing take?
From process to funding usually takes one to three weeks. The lender needs time to verify your information, order the payoff from your current lender, and process the paperwork. During this time, keep making payments to your current lender—don't stop until the new lender confirms they've paid off the old loan.
Can I refinance if the car has a lot of miles?
Yes, but lenders may charge a higher rate or require a shorter loan term. Most lenders will refinance cars with 100,000 to 150,000 miles, though some have limits. Ask the lender about their mileage policy before you explore. A car with very high mileage (over 200,000 miles) may be harder to refinance.
What if I want to shorten my loan term instead of lowering my payment?
You can refinance into a shorter loan—for example, from a five-year loan to a three-year loan. Your monthly payment will be higher, but you'll pay off the car faster and pay less interest overall. This works best if you have a stable income and can afford the higher payment.