You can refinance a car loan as soon as you own the car outright or have positive equity, but the best time depends on your credit score, interest rates, and how much you still owe

Refinancing means replacing your current loan with a new one, usually from a different lender. The new loan pays off the old one, and you start making payments to the new lender instead. People refinance to lower their monthly payment, reduce the total interest they pay, or shorten the loan term.

The earliest you can refinance is typically a few months after you buy the car — some lenders wait 6 to 12 months, though others will do it sooner. The real constraint is not time but your situation: you need either positive equity (the car is worth more than you owe) or you need to own it outright. If you owe more than the car is worth, most lenders will not refinance because they have no security if you stop paying.

Key Takeaways

  • You can refinance as soon as a few months after purchase, but lenders vary on how long they require you to wait.
  • Your credit score at the time of refinancing matters more than your original score — a higher score now can get you a lower rate.
  • Refinancing makes sense when current interest rates are lower than your original rate, or when your credit has improved enough to may have access to for better terms.
  • You need positive equity in the car (it is worth more than you owe) or you need to own it outright; owing more than it is worth blocks most refinancing.
  • The refinancing process takes one to two weeks, and you keep driving the car the whole time.

How your credit score affects when refinancing becomes worth it

Your credit score at the moment you refinance is what matters, not the score you had when you took out the original loan. If your credit has improved since you bought the car, you may now may have access to for a lower interest rate. Even a 1 or 2 percent drop in your rate can save hundreds of dollars over the life of the loan.

If your credit score has not changed or has dropped, refinancing probably will not help you. A new lender will see the same risk that your original lender saw, and may offer you a similar rate or worse. Before you contact a lender, check your credit report for free at annualcreditreport.com (the only official site) and pull your score from your bank, credit card company, or a free service like Credit Karma. Knowing your score before you shop prevents wasted applications.

When interest rates drop enough to make refinancing worth the cost

Refinancing has costs: a new process fee (often $50 to $200), a title transfer fee (varies by state, usually $10 to $50), and sometimes an appraisal fee if the lender requires one. These costs come out of your savings, so refinancing only makes sense if the lower rate will save you more than you pay in fees.

A rough rule: if the new rate is at least 1 percent lower than your current rate, the savings usually outweigh the fees. If rates have dropped only 0.5 percent, the math is tighter and depends on how much you still owe and how long you plan to keep the car. Use an online calculator (search "car loan refinance calculator") and enter your current loan balance, remaining term, current rate, and the new rate you have been offered. The calculator will show you the total interest you would pay under each scenario.

The difference between refinancing with your current lender and switching

You can refinance with the same bank or credit union that gave you the original loan, or you can shop around. Your current lender already has your information and may waive some fees to keep your business. Call them first and ask what rate they would offer you now.

Then shop at least two other lenders — banks, credit unions, or online lenders. Each inquiry into your credit counts as a "hard pull," but multiple inquiries within 14 days (or 45 days for auto loans at some credit bureaus) count as a single inquiry, so your credit score does not take a hit for shopping around. Compare the interest rate, fees, and loan term each lender offers. The lowest rate is not always the best deal if one lender charges higher fees or requires a longer term.

What happens to your car title and loan documents during refinancing

When you refinance, the new lender pays off your old loan in full. The old lender releases the title (or the lien on the title, depending on your state). Your new lender then holds the title or the lien until you pay off the new loan. You do not have to do anything with the physical title — the lenders handle the paperwork between them.

You will sign new loan documents with the new lender. These documents spell out the new interest rate, the new monthly payment, and the new payoff date. Keep copies for your records. Your car registration does not change, and you keep driving the car the entire time. The only thing that changes is who you send your monthly payment to.

Refinancing when you are underwater on your loan

If you owe more than the car is worth — called being "underwater" or "upside down" — most traditional lenders will not refinance you. They need the car as collateral, and if you stopped paying, they could not recover their money by selling it.

A few options exist if you are underwater. Some credit unions offer "negative equity" refinancing, though the terms are usually not as good as a standard refinance. You could also wait until you have paid down the loan enough to have positive equity, then refinance. Or you could roll the negative equity into a new car loan if you are buying a different vehicle, though this puts you further behind on the new car. Check with your current lender or a local credit union about their policies on negative equity before you assume it is impossible.

How long the refinancing process takes and what to expect

From the moment you submit an process to the moment the new loan funds and pays off the old one usually takes 7 to 14 days. Some lenders are faster, some slower. During this time, you keep making payments to your old lender as usual — do not stop paying because you are waiting for the refinance to go through.

The new lender will order a title search and may order an appraisal of the car. They will verify your income and employment, pull your credit report, and confirm the car's value. Once they approve the loan, they send the funds directly to your old lender to pay off the balance. You then owe the new lender instead. Your first payment to the new lender is usually due 30 days after the loan closes.

Frequently Asked Questions

Can I refinance a car I am still paying off?

Yes, as long as you have positive equity — the car is worth more than you owe. If you owe $15,000 and the car is worth $18,000, you have $3,000 in equity and can refinance. If you owe more than the car is worth, most lenders will decline.

Will refinancing hurt my credit score?

Refinancing causes a small, temporary dip in your credit score because the new lender pulls your credit report. The dip usually recovers within a few months. The benefit of a lower interest rate typically outweighs this temporary effect.

What if I want to refinance but my lender says I have to wait?

Some lenders require you to wait 6 to 12 months before refinancing. If yours does, you can either wait or refinance with a different lender. Not all lenders have this restriction, so shop around before accepting the wait.

Can I refinance if I have missed payments on my current loan?

Missed payments make refinancing much harder. Most lenders want to see at least 12 months of on-time payments before they will consider you. If you have recently missed a payment, focus on catching up and rebuilding your payment history before you refinance.

Does refinancing change my monthly payment?

It can. Your new payment depends on the new interest rate, the new loan term, and how much you still owe. You might lower your payment by extending the term, or keep the same term and lower your payment through a better rate. You can choose which matters more to you when you shop for the new loan.