What credit score is needed to refinance an auto loan?

There is no single minimum credit score required, but generally lenders prefer a score of 660 or higher to qualify for competitive APRs. Borrowers with scores below 600 may still refinance, though rates and fees will likely be higher. This is only general guidance, and each lender sets its own criteria.

Can I refinance an auto loan if my car is worth less than I owe?

Yes, it is possible to refinance with negative equity, but options will be limited. Some lenders allow it up to a certain loan-to-value ratio, often 110-125%. You may need to bring cash to cover the difference or accept a higher APR. This is a general observation; terms vary by lender.

Does refinancing an auto loan hurt your credit score?

A hard credit inquiry from the application can temporarily lower your score by a few points. However, multiple auto loan inquiries made within a short period (typically 14–45 days) are usually treated as one inquiry. Once you close the new loan, your credit mix may improve over time. This is general information, not credit-specific advice.

How to Refinance Your Auto Loan and Save Money

Reviewed by the LoanPolicies Editorial Team · Updated 2026-09-05

Refinance your auto loan to reduce interest costs. Learn how to refinance, check your credit, compare lenders, and avoid fees in this step-by-step guide.

Refinancing an auto loan means replacing your current car loan with a new one, ideally at a lower interest rate or with better terms. The goal is to reduce your monthly payment, shorten the loan term, or both. This general guide explains how to refinance an auto loan so you can make an informed decision — but remember, every borrower’s situation is unique, and this is not financial advice.

When Does Refinancing an Auto Loan Make Sense?

Refinancing can be a smart move if your credit score has improved since you originally financed the vehicle, or if current market interest rates are lower than the rate on your existing loan. It may also help if you need to lower your monthly payment to free up cash for other expenses. However, refinancing may not be worthwhile if your loan has a prepayment penalty, if your car is older with high mileage, or if you are near the end of your current loan term. Generally, the savings from a lower APR need to outweigh any origination fees or other costs.

Step-by-Step: How to Refinance Your Auto Loan

Follow these general steps to refinance:

Review your current loan details: Find your current interest rate, remaining balance, loan term, and any prepayment penalties. This gives you a baseline for comparison.
Check your credit score and report: A higher credit score often qualifies you for better APR offers. Obtain a free copy of your credit report and correct any errors before applying.
Shop around with multiple lenders: Compare offers from different lenders, including credit unions, online lenders, and banks. Focus on the APR, loan term, monthly payment, and any fees such as an origination fee or documentation fee.
Submit a formal application: Once you choose the best offer, complete the lender’s application. You’ll need personal information, vehicle details, and proof of income.
Review and sign the new loan agreement: Carefully read the terms before signing. Verify that the interest rate, monthly payment, and loan term match what you were quoted.
Allow the new lender to pay off your old loan: The new lender sends funds to your old lender. Confirm that the old loan is closed and that you receive any overpayment refund.

Key Factors That Affect Your Refinance Rate

Lenders evaluate several factors when setting your APR. The table below summarizes the most important ones:

Factor	How It Affects Your Rate
Credit score	Higher scores generally lead to lower APRs; lower scores may limit options or result in higher rates.
Loan-to-value ratio (LTV)	If your car is worth significantly more than the loan balance, you may qualify for better terms. Negative equity can reduce approval chances.
Loan term	Shorter terms usually have lower APRs but higher monthly payments. Longer terms lower the monthly payment but cost more in total interest.
Vehicle age and mileage	Lenders prefer newer cars with lower mileage. Older or high-mileage vehicles may be subject to higher rates or stricter LTV limits.

Common Mistakes to Avoid When Refinancing

Refinancing can backfire if you aren’t careful. Avoid these pitfalls:

Ignoring fees: Origination fees, application fees, and prepayment penalties can eat into your savings. Always ask for a full fee disclosure before signing.
Extending the loan term too much: Lowering your monthly payment by stretching the term can cost thousands more in interest over time. Only extend if you absolutely need the cash flow.
Applying with multiple lenders without timing your credit pulls: Most credit scoring models treat multiple auto loan inquiries within a 14–45 day window as a single inquiry, so shop quickly to protect your score.
Refinancing too soon after buying the car: Some lenders require you to wait a certain period or make a few payments before allowing a refinance. Check your original loan terms.

How to Get the Best Auto Loan Refinance Offer

To maximize your chances of approval and a low APR, take these general steps before applying: pay down existing debt to lower your debt-to-income ratio, avoid opening new credit accounts in the months leading up to refinancing, and consider a co-signer if your credit is weak. Also, gather all required documents — proof of income, vehicle registration, insurance, and current loan statement — to speed up the process. Remember, the best offer is not always the one with the lowest monthly payment; look at the total cost of the loan, including interest and fees over the full term.

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