Yes, you can use a personal loan to pay off a car loan. No federal law restricts how you spend unsecured loan proceeds, and the mechanics are straightforward: you borrow enough to cover your auto payoff, send the funds to your auto lender, and the lien on the car is released. Whether the swap is a good idea is a different question. You’re trading a secured debt for an unsecured one, usually at a higher interest rate, and if your current loan qualifies for the new federal car loan interest deduction, refinancing into a personal loan wipes that deduction out.
What Changes When You Swap Secured for Unsecured Debt
Your current auto lender holds a lien on the vehicle. That lien is a legal claim letting the lender repossess the car if you stop paying. Once the loan is satisfied and the lien is released, no lender has a claim on the vehicle.
A personal loan relies on your creditworthiness, not any specific asset. If you default, the personal lender can’t take your car. It can still send the debt to collections, sue you for the balance, and seek wage garnishment. The obligation doesn’t disappear. It just changes form.
When the Swap Actually Saves Money
Unsecured personal loans almost always carry higher interest rates than secured auto loans because the lender takes on more risk without collateral. As of early 2026, the average personal loan rate is roughly 12% for a borrower with a 700 credit score. New-car loan rates for prime borrowers average around 6.5%, and used-car loans average near 9.7%. Switching only saves money when your personal loan rate comes in below your current auto loan rate, which is realistic mainly if your credit has improved significantly since you originally financed, or if you took out a high-rate dealer loan.
Origination fees also matter. Many personal lenders charge a one-time fee of 1% to 10% of the loan amount, though some charge nothing. On a $15,000 loan, a 3% origination fee adds $450 to your cost before you make a single payment.
Term length is the other variable people miss. Personal loan terms typically run two to seven years. If your remaining auto loan term is longer than what a personal lender offers, your monthly payment could rise even at a lower rate. Run the numbers on total interest paid over the full life of each loan, not just the monthly payment, to see whether refinancing actually saves money.
The clearest situations where this strategy helps:
- Your credit score has risen enough to qualify for a rate below your existing auto loan.
- You owe more than the car is worth and want to sell it, but the lien prevents a clean title transfer.
- You want to consolidate the auto loan with other debts into a single monthly payment.
- You financed through a buy-here-pay-here dealer at an exceptionally high rate that any reasonable personal loan would beat.
The Car Loan Interest Deduction You Could Lose
For tax years 2025 through 2028, a federal provision allows you to deduct up to $10,000 per year in interest paid on a qualifying car loan.1Office of the Law Revision Counsel. 26 U.S. Code 163 – Interest The deduction applies only if all of the following are true:
- You are the first owner of the vehicle (original use starts with you).
- The loan was taken out after December 31, 2024.
- The lender holds a first lien on the vehicle.
- Your modified adjusted gross income is below $150,000 (single) or $300,000 (joint). The deduction shrinks by $200 for every $1,000 your income exceeds $100,000 ($200,000 joint).
The first-lien requirement is the critical piece. An unsecured personal loan does not meet that test, so refinancing into one eliminates the deduction entirely.1Office of the Law Revision Counsel. 26 U.S. Code 163 – Interest If you instead refinance into another secured auto loan, the new loan preserves the deduction, but only up to the outstanding balance of the original loan at the time of refinancing.2Internal Revenue Service. Treasury, IRS Provide Guidance on the New Deduction for Car Loan Interest You also must include the vehicle identification number on your tax return to claim the deduction.
If your current car loan qualifies, losing this deduction could easily offset any interest-rate savings. Compare the after-tax cost of both options before deciding.
Check for Prepayment Penalties First
Some auto loan contracts include a prepayment penalty, a fee for paying off the balance ahead of schedule.3Consumer Financial Protection Bureau. Can I Prepay My Loan at Any Time Without Penalty? Federal truth-in-lending rules require your lender to clearly state whether a prepayment penalty applies before you sign, so the information should be in your original loan paperwork.4Consumer Financial Protection Bureau. 12 CFR 1026.18 – Content of Disclosures If you can’t find the documents, call your lender and ask directly. Some states prohibit prepayment penalties on auto loans entirely.
A prepayment penalty doesn’t automatically make refinancing a bad idea. It just changes the math. Add the penalty to the total cost of switching before comparing it against your projected savings on the personal loan.
Getting the Payoff Amount and Sending the Money
Contact your auto lender and request a payoff quote. This is the exact amount needed to close the loan by a specific date, including interest that accrues daily between the quote date and your expected payment date. Most lenders provide this through their online portal, by phone, or by written request.
The payoff amount runs slightly higher than your current balance because interest continues to accumulate until the payment arrives. On a $15,000 balance at 6% APR, roughly $2.47 in interest accrues each day. If your payment arrives ten days after the quote date, you would owe about $25 more than the quoted balance. Payoff quotes typically expire after 10 to 30 days, so plan your timing accordingly.
When you receive the quote, confirm:
- The exact payoff amount and the last day it remains valid.
- The payment address or wire instructions, which often differ from where you send monthly payments.
- The account number to include on any check or transfer.
Once your personal loan funds are available, send the full payoff amount to your auto lender before the quote expires. Common payment methods include the lender’s online one-time payment portal, an ACH bank transfer, or a certified check sent by trackable mail. If you mail a check, write your account number on the memo line and include a copy of the payoff quote.
Save confirmation numbers for electronic payments. Keep tracking receipts for mailed checks. Then watch your account for a zero balance, which typically appears within a few business days for electronic transfers and longer for checks. If any personal loan proceeds are left over after the payoff, that money is yours. If you slightly overpay, the auto lender will refund the difference, usually within about ten business days.
Lien Release, Title, and Insurance
Once your auto loan balance reaches zero, the lender is required to release its lien on the vehicle. Under the Uniform Commercial Code, a secured party must file a termination statement within 20 days of receiving a written demand from the borrower after the debt is satisfied.5Legal Information Institute. UCC 9-513 – Termination Statement Many lenders initiate the release automatically without waiting for a formal demand.
How fast you get a clear title depends on your state. Many states use electronic lien and title systems, where the lender releases the lien electronically to the motor vehicle agency, cutting processing time from weeks to days. In paper-title states, the lender mails you the physical title with the lien marked as released, or sends a separate release document that you then take to your motor vehicle agency to get a clean title issued in your name alone. Overall processing times range from a few days in electronic states to 30 days or more in paper-title states. State fees for a new clean title typically fall between $15 and $75. If your clear title hasn’t arrived within 30 days, contact the lender’s title department with your payoff confirmation details and the date the final payment posted.
Insurance changes once the lien is gone. While the car had a lienholder, your loan agreement almost certainly required comprehensive and collision coverage. When you own the car free and clear, that contractual requirement disappears. You can drop those coverages and lower your premium, but weigh the car’s current value against the annual cost first. If the vehicle is still worth substantially more than what you’d pay in premiums, keeping the coverage makes sense. Either way, contact your insurer to remove the lienholder from your policy once you have the clean title.
How Your Credit Score Reacts
Paying off an auto loan and opening a personal loan triggers several changes to your credit profile, none of them permanent:
- Applying for the personal loan adds a hard inquiry to your credit report, which may lower your score by about five points. The effect fades within a year.
- If the auto loan was your only installment loan, closing it reduces the variety of credit types on your report. The new personal loan is also an installment loan, which partially offsets this, but your mix still shifts.
- If the auto loan was one of your oldest accounts, closing it shortens your average account age. A brand-new personal loan with zero history pulls that average down further in the short term.
These score effects are temporary. Consistent on-time payments on the personal loan will rebuild any lost ground. The bigger risk is defaulting on the new loan. Because it’s unsecured, a default won’t cost you the car, but it will seriously damage your credit and can lead to collections or a lawsuit for the outstanding balance.