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. The new lender pays off what you still owe on the old loan, and you start making payments to them instead. You keep the same car — nothing changes about ownership or the vehicle itself.
People refinance for three main reasons: to lower the interest rate (which reduces your monthly payment or the total amount you pay), to change the loan term (making payments smaller by spreading them over more months, or larger by paying it off faster), or to get out of a loan with unfavorable terms you accepted when your credit was worse. Refinancing makes the most sense when interest rates have dropped since you took out your original loan, or when your credit score has improved enough that lenders will offer you better terms now.
The catch is that refinancing costs money upfront — process fees, title transfer fees, and sometimes prepayment penalties on your original loan — so you need to calculate whether the savings over time outweigh those costs. A rough rule: if you plan to keep the car for at least another year or two after refinancing, the math usually works in your favor.
Key Takeaways
- Refinancing replaces your current car loan with a new one, typically from a bank, credit union, or online lender, and you keep the same vehicle.
- The main benefit is a lower interest rate or better terms, which reduces your monthly payment or total interest paid over the life of the loan.
- Refinancing costs money upfront (fees typically range from $0 to $500 depending on your lender and state), so compare the savings against those costs before proceeding.
- Your credit score, the age of your car, and how much you still owe all affect whether lenders will refinance you and what rate they will offer.
- The refinancing process takes one to two weeks from process to funding, and your original lender must be paid off before the new loan begins.
Check your current loan terms and calculate potential savings
Before you contact any lender, pull your loan documents and write down three numbers: your current interest rate, your remaining loan balance, and how many months you have left to pay. You can also log into your lender's website or call them to confirm these figures.
Next, use an online car loan calculator (available free from most banks and financial websites) to estimate what your new payment would be at a lower interest rate. For example, if you owe $15,000 at 7% with 36 months left, and you could refinance at 5%, the calculator will show you the new monthly payment and total interest you would pay. Subtract that total interest from what you would pay under your current loan — that is your potential savings.
Then subtract the refinancing costs. Most lenders charge between $0 and $500 in fees, though some credit unions charge nothing. Your state may also charge a title transfer fee (typically $25 to $75). If your original lender charges a prepayment penalty (some do, some do not), add that too. If your total savings exceed your total costs, refinancing is worth exploring further.
Check your credit score and shop for rates
Your credit score determines which lenders will work with you and what rate they will offer. You can check your score free once per year at annualcreditreport.com, or use free tools offered by many banks and credit card companies. A score of 660 or higher opens up most refinancing options; below that, your choices narrow and rates climb.
Once you know your score, contact at least three lenders to get rate quotes. Start with your current lender (they may offer you a better rate to keep your business), then check your bank, a local credit union, and one or two online lenders. When you request a quote, the lender will ask for your loan details and run a soft credit check — this does not hurt your score. They will give you an estimated rate and monthly payment within minutes.
Compare the quotes side by side, paying attention to the interest rate, the loan term (how many months), the monthly payment, and any fees. The lowest rate is not always the best deal if the fees are high or the term is longer than you want. Write down which lender offers the best combination for your situation.
Gather documents and submit your process
Once you have chosen a lender, you will need to submit a formal process. Have these documents ready: your driver's license or state ID, proof of income (recent pay stubs or tax returns), proof of residence (a utility bill or lease), and your vehicle identification number (VIN), which is on your registration or dashboard. Some lenders also ask for proof of insurance.
The process itself is usually online or over the phone and takes 10 to 15 minutes. The lender will ask about your employment, income, and the vehicle you are refinancing. They will run a hard credit check at this stage, which temporarily lowers your score by a few points — this is normal and recovers within a few months. The lender will then review your process and contact you within one to three business days with a decision.
If you are approved, the lender will send you a loan agreement to sign. Read it carefully and confirm that the interest rate, monthly payment, loan term, and fees match what you were quoted. Do not sign until everything matches.
Coordinate payoff of your old loan and funding of the new one
Once you have signed the loan agreement, your new lender will contact your current lender to request a payoff quote — the exact amount needed to close your old loan on a specific date. This quote is good for a limited time (usually 10 days), so timing matters.
Your new lender will then send the payoff amount directly to your old lender on the agreed date. At the same time, they will fund your new loan. You will receive confirmation from both lenders when this is complete. From this point forward, you make payments to your new lender, not your old one.
During this transition, your old lender may still send you a final bill or statement showing a $0 balance — this is normal and means the loan has been closed. Keep this paperwork for your records. Your new lender will send you payment instructions and your first payment due date, which is typically 30 to 60 days after funding.
What happens if your car is worth less than you owe
If you owe more on your car than it is worth (called being "upside down" on the loan), refinancing is still possible, but your options are more limited. Most lenders will refinance you, but they may charge a higher interest rate or require a larger down payment to offset the risk. Some lenders will not refinance you at all in this situation.
If you are significantly upside down, focus on lenders that specialize in this scenario — some credit unions and online lenders are more flexible. You can also ask your current lender whether they will refinance you, since they already know your payment history with them. Being upside down does not disqualify you, but it does narrow your choices and may limit your savings.
Refinancing with a co-signer or if you have poor credit
If your credit score is below 620, most mainstream lenders will decline you. In this case, you have two options: wait three to six months while you work to improve your score (paying bills on time, reducing credit card balances), or ask someone with better credit to co-sign the new loan. A co-signer is legally responsible for the loan if you do not pay, so choose someone you trust and who understands the commitment.
Some credit unions are more willing to work with lower credit scores than banks are, so contact your local credit union even if you have been turned down elsewhere. Online lenders also sometimes work with lower scores, though their rates will be higher. The goal is to get the refinancing done now if you need it, or to improve your score first if you can wait and want a better rate.
Frequently Asked Questions
Can I refinance a car I still owe money on?
Yes, that is the whole point of refinancing. The new lender pays off your old loan in full, and you owe the new lender instead. You must still owe money for refinancing to make sense — if you own the car outright, there is nothing to refinance.
How long does refinancing take from start to finish?
The process typically takes one to two weeks. process and approval take one to three business days, signing the loan agreement takes one to two days, and the actual payoff and funding takes another three to five business days. Some lenders are faster; others slower.
Will refinancing hurt my credit score?
Yes, temporarily. The hard credit check lowers your score by a few points, and opening a new loan account also has a small impact. However, this effect fades within a few months, and your score usually recovers faster than that if you make your new payments on time.
What if my original lender charges a prepayment penalty?
Some lenders charge a fee if you pay off your loan early. Check your original loan agreement or call your lender to ask. If the penalty exists, add it to your refinancing costs when calculating whether refinancing saves you money overall.
Can I refinance if I am behind on payments?
Most lenders will not refinance you if you are currently behind. However, if you have caught up and have no late payments in the last 30 to 60 days, you may be able to refinance. Contact lenders directly to ask — some are more flexible than others.