How to Refinance a Car Loan and Lower Your Payment
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, and you start making payments to them instead. You might refinance to get a lower interest rate, extend the loan term to reduce your monthly payment, or both.
Refinancing makes the most sense if your credit score has improved since you took out the original loan, interest rates have dropped, or you're struggling with your current payment. It does not make sense if you're deep underwater on the loan (owing far more than the car is worth), if you have only a few months left to pay, or if the fees and new interest charges would cost more than you'd save.
The process itself is straightforward: you find a new lender, they review your finances and the car's value, they send money to your old lender to pay off the balance, and you sign new loan documents. Most of it happens on paper or online. You keep driving the same car the whole time.
Key Takeaways
- Refinancing works best when your credit score has risen or market interest rates have fallen since you got your original loan.
- A lower interest rate saves money over time, but extending the loan term lowers your monthly payment at the cost of paying more interest overall.
- Lenders will check your credit, verify your income, and confirm the car's value before approving a refinance.
- The entire process usually takes one to two weeks from application to funding, and you continue making payments to your old lender until the new one pays them off.
- Refinancing costs little or nothing upfront, but some lenders charge origination fees or require a credit check fee.
How to find lenders and compare refinance offers
Start by checking with your current lender—many will refinance their own loans and may offer you a better rate as a loyal customer. Then contact banks, credit unions, and online lenders. Credit unions often have lower rates than banks, especially if you're a member, so joining one before refinancing can pay off.
When you contact a lender, you'll need your current loan balance, the car's year and mileage, and your Social Security number. Most lenders can give you a rate estimate in minutes without a hard credit pull. Collect at least three offers before deciding. Compare not just the interest rate but the total amount you'll pay over the life of the loan, any upfront fees, and whether the lender allows early payoff without penalty.
Online lenders and banks often have faster approval than dealerships, and you can complete most of the process from home. Credit unions may require you to visit in person or mail documents, but their rates are frequently lower. Do not let a lender pull your credit hard until you're ready to commit—multiple hard pulls in a short window (usually two weeks) count as one inquiry, but pulls spread over months will hurt your score.
What lenders look at when deciding whether to refinance your loan
Lenders care about three things: your credit score, your income, and the car's current value. Your credit score tells them whether you've paid past debts on time. Your income proves you can afford the new payment. The car's value determines how much they're willing to lend—they won't lend more than the car is worth, because if you stop paying, they need to be able to sell it and recover their money.
You'll need to provide recent pay stubs or tax returns to show income, and the lender will order a vehicle history report (like Carfax or AutoCheck) and may request photos or an inspection. If the car has high mileage, significant damage, or is very old, some lenders will decline or offer a higher rate. If you've had late payments on your current auto loan, refinancing becomes harder—some lenders won't touch you, and others will charge a much higher rate.
The lender will also verify that you own the car free and clear of other liens (except the current loan). If you owe money to multiple lenders against the same vehicle, you'll need to pay off all but one before refinancing, or find a lender willing to take a second position—which is rare and expensive.
The difference between lowering your rate and extending your term
These are two separate levers, and pulling both at once can trap you. If you refinance to a lower interest rate but keep the same loan term, your payment drops and you pay less total interest. That's the best outcome. If you refinance to a lower rate but extend the term (say, from 48 months to 60 months), your payment drops even more, but you're paying interest for longer and may end up paying nearly as much total interest as before.
If you refinance to extend the term without a rate drop, your payment falls but you're paying significantly more interest overall. For example, extending a $15,000 loan from 48 months to 72 months at the same 6% rate means paying roughly $2,700 in interest instead of $1,900—an extra $800 for the sake of a lower monthly payment. That trade-off only makes sense if you're in genuine financial hardship and need the breathing room.
Before refinancing, calculate what you'll actually pay. Most lenders show you an amortization schedule—a month-by-month breakdown of principal and interest. Compare that total to what you'd pay if you kept your current loan. If the new total is higher, ask yourself whether the lower monthly payment is worth the extra cost.
How the payoff and funding process works
Once you're approved, the new lender will contact your current lender to request a payoff quote—the exact amount needed to close your loan on a specific date. Your current lender will tell them the balance, any accrued interest, and any prepayment penalties (though most auto loans have none). The new lender then sends a check or electronic transfer to your old lender on or before that date.
During this window—usually three to seven business days—you keep making payments to your old lender as scheduled. Do not stop paying. Once the new lender's money arrives and your old loan is paid in full, the old lender will release the lien on the car's title. The new lender will file their lien and send you new loan documents and a payment coupon or online payment portal.
You'll receive a letter from your old lender confirming the loan is closed. Keep this letter. The title will eventually arrive in the mail with the new lender's name as the lienholder. This process is handled entirely between lenders—you don't need to visit a DMV or sign anything at the dealership. Your only job is to make sure you know when to start paying the new lender and where to send the payment.
Costs and fees to watch for
Most auto refinances have no upfront cost. However, some lenders charge an origination fee (typically 1% to 2% of the loan amount), a credit check fee ($25 to $75), or a document preparation fee. These are usually rolled into the new loan balance, so you don't pay them out of pocket, but you do pay interest on them over time. A $300 origination fee on a 60-month loan at 5% interest costs you roughly $40 in extra interest.
Your old lender may charge a prepayment penalty if you pay off the loan early. Federal law limits these penalties, and most auto loans have none, but check your original loan documents or call and ask. If there is a penalty, factor it into your savings calculation—sometimes the penalty eats up most or all of the benefit of refinancing.
You may also need to pay for a new title transfer or registration update in your state, though many states handle this automatically when the lien changes. Call your state's DMV or check their website to confirm. These costs are usually under $50 and are separate from the refinance itself.
When refinancing doesn't make financial sense
If you owe significantly more than the car is worth—say you owe $12,000 but the car is worth $8,000—most lenders will decline to refinance. You're underwater, and they have no collateral cushion. Some credit unions or specialized lenders will refinance underwater loans, but at a much higher interest rate, which defeats the purpose.
If you have fewer than 12 months left on your current loan, refinancing rarely saves enough to justify the paperwork and fees. The interest you'd save is small, and you're close to being done. If your credit score has not improved and interest rates have not dropped since you took out the original loan, a new lender will likely offer you a similar or higher rate, so refinancing costs you money.
If you're planning to sell or trade in the car within the next year or two, refinancing is usually not worth it. You'll spend time and effort for savings you won't see before the car is gone. The exception is if you're underwater and refinancing to a longer term would let you get out of the loan before selling—but that's a sign the original purchase was a mistake, not a reason to refinance.
Frequently Asked Questions
Will refinancing hurt my credit score?
Yes, but temporarily and mildly. The hard credit pull will drop your score by a few points for a few months. Opening a new loan account also lowers your average account age. However, as you make on-time payments to the new lender, your score will recover and eventually improve because you're paying down debt. The long-term benefit outweighs the short-term dip for most people.
Can I refinance a car I'm still paying off?
Yes. That's the whole point of refinancing—you're replacing one loan with another. The new lender pays off the old one, and you owe them instead. You must still owe money on the car (not own it outright) and the car must have a lien in the lender's name.
What if my car has a lot of miles or is very old?
Older cars and high-mileage cars are riskier for lenders because they're worth less and more likely to break down. Some lenders won't refinance cars over 10 years old or with over 150,000 miles. Others will, but at a higher interest rate. Credit unions are often more flexible than banks. Call ahead and ask about their age and mileage limits before applying.
How long does refinancing take from start to finish?
Most refinances close within one to two weeks. The application and approval can happen in a day or two, but the lender needs time to order a vehicle history report and verify your information. The payoff and funding process adds another three to seven business days. Plan for two weeks to be safe.
Can I refinance if I have a cosigner on my original loan?
Yes, but the new lender may or may not require the cosigner on the new loan. If your credit has improved significantly since the original loan, you may be able to refinance without them. Ask the new lender upfront whether a cosigner is required. If they are, both of you will need to sign the new documents.