How to Refinance a Car Loan: Rates, Requirements, and When It Makes Sense (2026)

# How to Refinance a Car Loan: Rates, Requirements, and When It Makes Sense (2026)

By Daniel Rozin | A Versus B | August 20, 2026

Refinancing a car loan can lower your monthly payment, reduce your total interest cost, or both — if the new rate is lower than your current one. In 2026, the average auto refinance rate for borrowers with good credit (700–749 FICO) is 6.2% for a 60-month term, down from the peak of 7.4% in mid-2024. If you took out your auto loan during a high-rate period or your credit score has improved significantly since purchase, refinancing can save you $500–$3,000 over the remaining loan term. Here is exactly how to do it.

2026 Auto Refinance Rates by Credit Score#

Rates vary by lender, loan amount, vehicle age, and state. Credit unions typically offer 0.5–1.0 percentage points lower than banks for the same credit profile.

Best Auto Refinance Lenders in 2026#

PenFed Credit Union consistently offers the lowest rates for members with good credit. Anyone can join with a one-time $5 donation to the National Military Family Association. OpenRoad Lending is a marketplace — they shop your application to multiple lenders, which works well if you are unsure of your best rate.

When Refinancing Makes Financial Sense#

Refinancing is worth it when:

1. Your credit score has improved significantly — a 50-point improvement in FICO score can reduce your rate by 1–2 percentage points.
2. Market interest rates have dropped — if you financed during a rate peak and current rates are 1%+ lower, refinancing typically saves money.
3. You need lower monthly payments — extending the term from 48 to 72 months reduces payments, though you pay more total interest.
4. You want to pay off faster — if your income increased, refinancing to a shorter term at the same rate reduces total interest paid.
5. Your current lender charges fees you want to avoid — some loans have prepayment penalties that make staying put costly.

Example savings calculation:

• Current loan: $18,000 remaining, 8.9% APR, 48 months remaining = $449/month, $3,552 total interest
• Refinanced: $18,000, 6.2% APR, 48 months = $425/month, $2,400 total interest
• Savings: $1,152 in interest + $24/month lower payments

When NOT to Refinance#

Refinancing is not the right move when:

• Your current loan has a prepayment penalty that exceeds your interest savings (check your loan documents — early payoff penalties are more common on loans from buy-here-pay-here dealers).
• You are underwater on the loan (owe more than the car is worth) — most lenders cap the loan-to-value ratio at 125%.
• The car is too old or has too many miles — most lenders will not refinance vehicles over 10 years old or with more than 120,000–150,000 miles.
• You are close to payoff — if you have less than 12 months left, the transaction costs and credit inquiry rarely save more than they cost.
• Your credit score has dropped — refinancing into a higher rate defeats the purpose.

How to Refinance: Step-by-Step#

Step 1: Get your current loan details

• Outstanding balance
• Current APR and monthly payment
• Remaining term (months)
• Prepayment penalty (if any)
• Account number and lender contact info

Step 2: Check your credit score

Pull your free score through your bank or via AnnualCreditReport.com. FICO Scores are used by most auto lenders; VantageScore results from Credit Karma can read 20–40 points higher than the FICO score a lender will actually see.

Step 3: Get rate quotes (pre-qualify, not formal apply)

Pre-qualification uses a soft credit pull and does not affect your score. Get quotes from at least 3 lenders. If you submit multiple formal applications within a 14-day window, credit bureaus typically count them as a single inquiry for scoring purposes under the FICO deduplication rule.

Step 4: Compare total cost, not just monthly payment

Calculate total interest paid for each offer: (monthly payment × remaining months) − remaining principal = total interest cost. A lower monthly payment with a longer term can cost more total.

Step 5: Submit the best application

Provide: current loan information, vehicle details (VIN, year, make, model, mileage), proof of income, proof of insurance, and a government ID.

Step 6: Pay off the old loan

Your new lender sends a check directly to your old lender. Verify the payoff within 30 days. Do not miss a payment on your old loan while the refinance is processing.

Documents You Need#

• Driver's license or government ID
• Vehicle registration and title (or lienholder info if not yet in your possession)
• Proof of insurance showing the vehicle
• Two recent pay stubs or proof of income (tax returns if self-employed)
• Proof of residence (utility bill or lease within 60 days)
• Current loan account number and payoff amount

Related Comparisons#

Weighing your auto financing options? See Lease vs. Buy a Car to understand the full cost difference. For rate comparisons in other loan types, see Fixed vs. Variable Interest Rate.