Refinancing a car means replacing your current loan with a new one, usually at a different interest rate or term length

When you refinance, you pay off your existing car loan with money from a new loan. The new lender becomes your creditor, and you make payments to them instead. The main reason people refinance is to lower their monthly payment or reduce the total interest they pay over the life of the loan. Sometimes people refinance to change the loan term — stretching payments over more years to lower the monthly amount, or shortening the term to pay off the car faster.

Whether refinancing makes sense depends entirely on your current loan terms, your credit score now versus when you first borrowed, and how much time is left on your loan. A refinance that saves you money in one situation can cost you money in another. This guide walks through when refinancing typically works in your favor and when it does not.

Key Takeaways

  • Refinancing saves money only if your new interest rate is meaningfully lower than your current rate — usually at least 1 to 2 percentage points lower to offset the cost of the new loan.
  • Your credit score is the biggest factor in whether you will may have access to for a better rate; if your score has improved since you took out the original loan, refinancing becomes more likely to help.
  • The longer you have left on your loan, the more interest you can save by refinancing, but refinancing in the final year or two usually does not make financial sense.
  • Refinancing resets your loan term, so stretching payments over more years lowers your monthly bill but increases total interest paid — the opposite is true if you shorten the term.
  • Lenders charge fees to process a new loan, and these costs must be weighed against the interest savings you will actually receive.

How your credit score affects refinancing rates

The interest rate a lender offers you depends primarily on your credit score. If your score has risen since you took out your original car loan — because you have paid bills on time, paid down debt, or corrected errors on your credit report — you may now may have access to for a lower rate. Even a modest improvement in your score can translate to a noticeably lower rate.

Conversely, if your credit score has dropped, refinancing will likely result in a higher rate, which means you should not refinance. Before you contact any lender, check your credit score yourself. You can obtain a free credit report once per year from AnnualCreditReport.com, which is the official source run by the three major credit bureaus. Many banks and credit card companies also provide free credit scores to their customers.

When you shop for refinancing, each lender will pull your credit report, which creates a small, temporary dip in your score. Multiple inquiries within a short window — typically 14 to 45 days, depending on the scoring model — usually count as a single inquiry, so it is fine to contact several lenders in a few days to compare offers.

Calculating whether the savings justify the cost

Refinancing is not free. Lenders charge origination fees, processing fees, or title transfer fees. These typically range from $0 to $500, though some lenders charge nothing upfront. You need to know the total cost of refinancing before you can determine whether the interest savings are worth it.

Here is the basic math: subtract your new monthly payment from your old monthly payment, then multiply by the number of months remaining on the new loan. That gives you the total savings before fees. Then subtract the refinancing fees from that number. If the result is positive, refinancing saves you money. If it is negative, refinancing costs you money overall.

Example: Your current loan has 36 months left at $350 per month. A new loan would be $320 per month for 36 months, with $200 in fees. Monthly savings: $30. Total savings over 36 months: $1,080. Minus fees: $880. In this case, refinancing makes sense. But if the new loan stretched payments to 48 months at $300 per month, your total payments would be $14,400 instead of $12,600, even though the monthly payment is lower. The longer term means you pay more interest overall.

When refinancing usually makes financial sense

Refinancing typically works in your favor when you have at least 24 months left on your current loan, your credit score has improved by 50 points or more, and you can find a rate at least 1 to 2 percentage points lower than your current rate. The longer the remaining term, the more interest you can save, so refinancing is most beneficial if you have 36 months or more left to pay.

Refinancing also makes sense if you took out your original loan when interest rates were high — for example, if you financed a car during a period when rates were 7 percent or higher, and current rates have dropped to 4 or 5 percent. Even a modest improvement in your personal credit situation combined with lower market rates can create substantial savings.

Some people refinance to change their monthly budget. If you are struggling with a high payment, refinancing to extend the loan term will lower your monthly bill. However, you will pay more interest overall, so this approach should be a last resort if you cannot afford the current payment and have no other options.

When refinancing usually does not make sense

Do not refinance if you have fewer than 24 months left on your loan. The fees and the shorter time frame mean the interest savings will be minimal or nonexistent. Similarly, if your credit score has not improved significantly since you took out the original loan, you will not may have access to for a meaningfully better rate, and refinancing will likely cost you money.

If you are underwater on your loan — meaning you owe more than the car is worth — some lenders will still refinance you, but the terms are usually worse. In this situation, refinancing rarely makes financial sense unless your credit has improved dramatically and rates have dropped substantially.

Avoid refinancing if you are planning to sell or trade in the car within the next year or two. The fees you pay upfront will not be recovered by the interest savings, and you may still owe money on the new loan after you sell the vehicle.

Where to shop for refinancing offers

Banks, credit unions, and online lenders all offer car refinancing. Credit unions often have lower rates than banks, especially if you are a member, so start there if you belong to one. Online lenders like LendingClub, Lightstream, and Upstart allow you to check rates without a hard credit inquiry first — they use a soft inquiry that does not affect your score. This lets you see what you might may have access to for before committing to anything.

When you are ready to move forward, contact at least three lenders to compare rates and fees. Ask each lender for the interest rate, the monthly payment, any upfront fees, and the total cost of the loan. Request a loan estimate in writing so you can compare apples to apples. The Truth in Lending Act requires lenders to disclose the Annual Percentage Rate (APR), which includes both the interest rate and certain fees, so comparing APRs across lenders is a straightforward way to see which offer is cheapest.

What happens after you refinance

Once you accept a refinancing offer, the new lender pays off your old loan in full. You then make payments to the new lender. The payoff process typically takes 7 to 10 business days, during which you may receive bills from both lenders — this is normal and does not mean you owe both. Keep making payments to your original lender until you receive written confirmation that the loan has been paid off.

Your car title may need to be transferred to the new lender, depending on your state and the lender's requirements. The new lender will handle this paperwork, though you may need to sign documents. Some lenders hold the title until the loan is paid off; others return it to you when ready. Ask your new lender what to expect.

After refinancing, your monthly budget changes, so update any automatic payments or reminders you have set. If you refinanced to a longer term, remember that you are paying more interest overall, even though your monthly payment is lower. If you refinanced to a shorter term, your payment is higher, but you will own the car sooner and pay less interest.

Frequently Asked Questions

Will refinancing hurt my credit score?

Refinancing causes a small, temporary dip in your credit score when the lender pulls your credit report. This dip typically recovers within a few months. The bigger impact comes from closing your old loan and opening a new one, which slightly lowers the average age of your credit accounts. Over time, making on-time payments on the new loan will rebuild your score.

Can I refinance a car I still owe money on?

Yes. In fact, most people refinance while they still owe money on the original loan. The new lender pays off the old loan, and you start making payments on the new one. You cannot refinance if you owe significantly more than the car is worth, though some lenders will still work with you in this situation at a higher rate.

What if my car has high mileage — can I still refinance?

Most lenders do not care about mileage when refinancing because they are not assessing the car's condition the way they would for a new loan. They are straightforward replacing an existing loan. However, some lenders have mileage limits, so ask before you explore.

How long does refinancing take?

The approval process usually takes 1 to 3 business days. Once approved, the new lender pays off your old loan within 7 to 10 business days. You may see a gap of a few days where you are not sure which lender to pay — contact your original lender and ask what to do during the transition.

Can I refinance multiple times?

Yes, but each refinance costs money and temporarily affects your credit score. Refinancing more than once every two years is rarely worth it financially unless your circumstances change dramatically — for example, if your credit score improves by 100 points or interest rates drop significantly.