Auto Loan Refinance Calculator
Compare your current auto loan against a refinanced loan to see monthly savings, total interest saved, and how many months until you break even on refinancing costs.
| Metric | Current Loan | Refinanced Loan | Difference |
|---|
How Auto Loan Refinancing Works
An auto loan refinance calculator helps you determine whether replacing your current car loan with a new one at a lower interest rate will save you money. Refinancing replaces your existing loan with a new loan, typically from a different lender, that pays off the original balance. The new loan comes with its own interest rate, term length, and potentially some closing fees.
When you refinance, the new lender pays off your current loan directly. You then make payments to the new lender under the updated terms. According to the Consumer Financial Protection Bureau (cfpb.gov), borrowers who refinance auto loans save an average of $50 to $150 per month depending on loan size and rate reduction. The key variables are the remaining balance, the rate difference between your current and new loans, and the new term length.
When to Refinance Your Car Loan
Refinancing makes the most sense when your credit score has improved since you first took out the loan, as better credit typically qualifies you for lower rates. Market interest rates may also have dropped since your original purchase. As of early 2026, the average new-car loan rate is approximately 6.8% APR, while used-car loans average around 11.3% APR, according to Federal Reserve data (federalreserve.gov).
Consider refinancing if you can reduce your rate by at least 1 to 2 percentage points. Timing matters too: most lenders require you to have held your current loan for at least 60 to 90 days before allowing a refinance. Avoid refinancing if your loan is nearly paid off, since the interest savings on a small remaining balance may not justify the fees.
Auto Refinance vs Paying Extra
An alternative to refinancing is simply making extra principal payments on your current loan. Extra payments reduce your balance faster without any fees, but they require spare cash each month. Refinancing, by contrast, lowers your required monthly payment immediately. If your goal is reducing monthly cash flow pressure, refinancing is more effective. If your goal is minimizing total interest paid and you have the discipline to make extra payments, paying down the existing loan faster can be better since you avoid refinance fees and keep a shorter effective term.
Current Auto Loan Rates (2026)
Based on Federal Reserve and cfpb.gov reference data, typical auto loan rates in 2026 range from 5.5% to 7.5% APR for new vehicles with excellent credit (750+), and 7% to 12% for used vehicles or borrowers with fair credit (650-699). Subprime borrowers (below 600) may see rates of 14% or higher. Credit unions often offer rates 1 to 2 percentage points below bank rates. When using this calculator, enter the actual APR quoted by your new lender for the most accurate savings estimate. Last updated: 2026-07-04.
Auto Loan Refinance Break-Even — The One Number That Decides It
The Consumer Financial Protection Bureau's official auto loan guide emphasises that the deciding number in any refinance decision is the break-even month — the exact month when accumulated monthly savings finally exceed the refinance fees you paid up front. This calculator computes it for you automatically. The rule of thumb: if your break-even lands inside the first 12 months of the new loan, refinance immediately; between 12-24 months, refinance if you plan to keep the car; past 24 months, the fees eat the savings. Example with 2026 numbers: $22,000 balance, 8.5% rate → 6.5% rate, $250 total fees, 48-month new term. Monthly savings ~$18, break-even ~14 months. That is a clear "refinance" call as long as you'll keep the car another 3+ years. Always run the numbers with YOUR quoted new APR (not the advertised "as low as" rate) — approval rate averages 1-1.5 percentage points above teaser rates for most credit tiers.
Auto Loan Refinance 2026 Rate Table by Credit Tier
Anchor your refinance decision to real 2026 rates before running the auto loan refinance calculator above. Rates below reflect the median APR offered to each credit tier by online lenders (LightStream, PenFed, LendingClub) as of 2026-07-15. Actual offered rates depend on vehicle age, loan-to-value ratio, and lender-specific underwriting. Pre-qualify with 2-3 lenders (soft pull, no score impact) before applying.
| Credit Score | Refi APR (New Car ≤3 yr) | Refi APR (Used 4-7 yr) | Refi APR (Used 8+ yr) |
|---|---|---|---|
| 750+ (Excellent) | 5.5% – 6.5% | 6.5% – 8.5% | Rarely offered |
| 700-749 (Good) | 6.5% – 8.5% | 8.5% – 11.5% | Limited |
| 650-699 (Fair) | 8.5% – 12% | 12% – 16% | Very limited |
| Below 650 (Subprime) | 14% – 20%+ | 17% – 22%+ | Usually declined |
Credit unions typically offer 1-2 percentage points below these rates for members. Vehicles over 10 years old or with over 100,000 miles are rarely eligible for refinance regardless of credit. Per the Federal Reserve G.19 consumer credit release, the national average 60-month new-car loan rate in 2026 is around 7.3%; used-car 60-month averages 11.9%. Updated 2026-07-15.