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.
Frequently Asked Questions
Does refinancing a car hurt your credit?
Refinancing triggers a hard credit inquiry, which may lower your score by 5 to 10 points temporarily. However, if you reduce your monthly payment and avoid missed payments, the long-term effect on your credit is often positive. Multiple auto loan inquiries within a 14-day window are typically counted as a single inquiry by FICO scoring models.
How soon can you refinance an auto loan?
Most lenders require you to wait 60 to 90 days after your original loan was funded before you can refinance. Some lenders have no waiting period. Check your current loan agreement for any prepayment penalties that might apply if you pay off the loan early through a refinance.
Is it worth refinancing for 1% lower rate?
On a $20,000 balance with 48 months remaining, a 1% rate reduction saves roughly $400 to $500 in total interest. Whether this is worthwhile depends on your refinance fees. Use this calculator to find your break-even month. If the break-even point is within the first third of your new loan term, refinancing is generally worth it.
Can you refinance with negative equity?
Yes, some lenders allow refinancing when you owe more than the car is worth (being "upside down" or "underwater"). However, your options are limited, rates may be higher, and you will carry the negative equity into the new loan. Consider making extra payments first to reduce the gap before refinancing.
What credit score is needed to refinance a car?
Most lenders require a minimum credit score of 600 to 620 for auto refinancing. However, to qualify for the best rates (under 6% APR), you typically need a score of 720 or higher. Credit unions may offer more flexible requirements than banks or online lenders.
Does refinancing restart the loan clock?
Yes, refinancing creates a new loan with its own term. If you had 24 months left on your current loan and refinance to a 48-month term, your total remaining payments extend. While your monthly payment drops, you may pay more total interest over the longer term. This calculator shows both scenarios so you can compare.
Are there fees to refinance an auto loan?
Common fees include title transfer fees ($5 to $75 depending on state), application or origination fees ($0 to $300), and re-registration charges. Many credit unions and online lenders charge zero application fees. Always factor these costs into your break-even calculation.
How do I calculate the break-even point on an auto loan refinance?
Break-even month = total refinance fees ÷ monthly payment savings. Example: $250 in title-transfer + application fees, $18 monthly savings from the lower APR → 250 ÷ 18 = 14 months to break even. If you plan to keep the car longer than the break-even month, refinancing pays. The calculator above computes this for you automatically the moment you enter your fee amount. Per the CFPB, refinances that break even inside 12-24 months are the safest — anything past 24 months and the fees typically eat the interest savings.
Should I refinance to a longer term to lower my payment?
Only if cash-flow relief today is worth more than higher total interest cost. A longer term always lowers the monthly payment but almost always increases total interest paid. Example: $22,000 balance at 6.5% over 36 months = $674/mo, $2,257 total interest. Same balance at 6.5% over 60 months = $431/mo, $3,860 total interest — that is $1,600 more in interest for $243 less per month. If your goal is minimising interest paid, refinance to a rate cut with the SAME or shorter remaining term. If your goal is monthly cash flow, extend but plan to prepay when income allows.
What auto refinance APR should I expect for a 700 credit score in 2026?
For a 700 FICO score in 2026, expect auto refinance rates of 6.5-8.5% for cars up to 3 years old, 8.5-11.5% for cars 4-7 years old, and limited options for older vehicles. Credit unions (PenFed, Navy Federal) may offer 1-2 percentage points below these rates for members. Rates depend heavily on loan-to-value ratio: if you owe more than 100% of Kelley Blue Book value, expect the top of the range or a decline. Pre-qualify with 3 lenders using soft credit pulls first.
Can I refinance a used car older than 8 years or with over 100,000 miles?
Very few lenders refinance vehicles older than 8-10 years or with over 100,000 miles. Age and mileage caps: Bank of America 10 years/125K miles, PenFed 10 years/125K, LightStream unusually flexible up to 15 years. If your vehicle is outside these caps, consider a personal loan instead (higher rate but no collateral requirement). Payoff time matters too — most lenders want at least 24 months remaining on the new loan to justify origination costs.