Quick Answer
Quick Answer: Refinancing your car loan means replacing your current loan with a new one--typically at a lower interest rate, a different term, or both. It generally makes sense when your credit score has improved by 50 or more points, market rates have dropped 1-2%, or you accepted above-market dealer financing. A common example: reducing a $25,000 auto loan from 8% to 5% APR with 48 months remaining saves approximately $2,100 in total interest.
Important: Extending your loan term lowers monthly payments but can increase total interest paid. Always compare total cost, not just the monthly payment.
Compare Your Current Loan to a Refinance Scenario5 Signs You Should Refinance Your Car Loan
Sign 1: Your Credit Score Has Improved
If your credit score has increased by 50 or more points since you took out the original loan, you likely qualify for a significantly lower rate. Even a one-tier improvement--for example, moving from near-prime (601-660) to prime (661-780)--can reduce your APR by 3-5 percentage points.
Here is how average auto loan rates generally break down by credit tier (estimated ranges for 2026):
| Credit Score | New Car Avg Rate | Used Car Avg Rate |
|---|---|---|
| 781-850 (Super Prime) | 5.0-5.5% | 6.0-7.0% |
| 661-780 (Prime) | 6.0-7.5% | 7.5-9.5% |
| 601-660 (Near Prime) | 8.5-11.0% | 11.0-14.0% |
| 501-600 (Subprime) | 11.5-14.5% | 15.0-19.0% |
| Below 500 (Deep Subprime) | 14.5%+ | 20.0%+ |
Example: Improving from a 620 score (approximately 10.5% APR) to a 720 score (approximately 6.5% APR) on a $20,000 balance with 48 months remaining saves roughly $1,800 in total interest. See our Auto Loan Rates by Credit Score guide for detailed rate data by FICO band.
Credit score tip: Improving your credit utilization ratio is one of the fastest ways to boost your score before applying for a refinance.
Sign 2: Market Interest Rates Have Dropped
Auto loan rates fluctuate with the federal funds rate and broader credit market conditions. If rates have dropped 1-2 percentage points since your original loan--regardless of whether your credit score changed--refinancing may be worthwhile.
Check current rates from credit unions, online lenders, and banks before applying. Seasonal note: some lenders offer promotional rates during Q4 and Q1 to hit origination targets.
Sign 3: You Accepted Dealer Financing
Dealer-arranged financing through the F&I (finance and insurance) department often includes a rate markup of 1-3 percentage points above what you would get directly from a bank or credit union. If you financed through the dealer without shopping for rates first, you are likely paying more than necessary.
Many buyers accept dealer financing for convenience and then refinance within 60-90 days at a better rate. Most auto loans do not have prepayment penalties, but verify this with your current lender before proceeding.
Sign 4: You Need Lower Monthly Payments
Refinancing can lower your monthly payment in several ways:
- Lower interest rate -- Reduces both your payment and total cost (the best scenario)
- Extended loan term -- Reduces your payment but may increase total cost
- Both -- Lower rate plus longer term provides the maximum payment reduction
Watch out: Extending your term significantly (for example, from 36 remaining months to 60 new months) can leave you "upside down"--owing more than the car is worth. Before extending, compare the total cost of both scenarios using our Auto Loan Calculator.
If your monthly payment is stretching your budget, consider how a lower auto payment could improve your overall debt-to-income ratio and free up cash for other goals like building your savings.
Sign 5: You Want to Remove a Co-Signer
If a parent or partner co-signed your original auto loan, refinancing in your name only removes their financial obligation. You will need to qualify for the new loan on your own, which means demonstrating sufficient income and a strong enough credit score. This is a common reason to refinance even if the interest rate does not change significantly.
When NOT to Refinance Your Car Loan
Refinancing is not always the right move. Avoid it in these situations:
- You are upside down on the loan -- If you owe more than the car is worth (negative equity), lenders may decline the refinance or you may need to roll negative equity into the new loan. Check your car's current market value using resources like Kelley Blue Book or our Trade-In Value Guide
- Less than 12 months remaining -- Refinancing fees and the short remaining term mean you are unlikely to recoup costs before the loan ends
- Your car has high mileage (100,000+ miles) -- Many lenders will not refinance vehicles with 100,000+ miles or that are older than 7-10 years
- Your current loan has a prepayment penalty -- Some subprime lenders charge early payoff penalties. Check your original loan agreement before moving forward
- You plan to sell the car soon -- If you intend to sell or trade in within 6-12 months, the savings from refinancing will not offset the effort and potential fees
- You cannot get a meaningfully lower rate -- If the rate improvement is less than 0.5 percentage points, the savings generally do not justify the time and credit inquiry
How to Calculate Your Refinancing Savings
The Breakeven Calculation
Before refinancing, calculate how long it takes for your savings to exceed the costs. Here is the formula:
Breakeven Point = Total Refinancing Fees / Monthly Savings
Typical auto refinancing costs include:
- Application fee: $0-$50
- Title transfer / lien fee: $10-$75
- State re-registration: $0-$100
- Total typical range: $100-$500
Example: $200 in fees divided by $50 in monthly savings = a 4-month breakeven. If you have 36+ months remaining on your loan, refinancing clearly saves money. After the breakeven point, every remaining month is pure savings.
Total Interest Savings Comparison
This table compares the total remaining cost of a current loan versus a refinanced loan on a $20,000 balance:
| Scenario | Rate | Term | Monthly Payment | Total Remaining Cost |
|---|---|---|---|---|
| Current Loan | 8.0% | 48 months | $488 | $23,424 |
| Refinance (same term) | 5.5% | 48 months | $461 | $22,128 |
| Savings | -2.5% | -- | $27/month | $1,296 total |
Note: your savings will vary based on your specific balance, rate improvement, and remaining term. Use our calculator to see exact numbers for your situation.
Enter Your Loan Details to See Exact SavingsRate Reduction vs. Term Extension
Understanding the tradeoffs between rate changes and term changes helps you choose the best refinancing approach:
- Lower rate, same term: Saves total interest AND lowers your monthly payment (best overall outcome)
- Lower rate, shorter term: Saves the most total interest but may slightly increase your monthly payment
- Same rate, longer term: Lowers your monthly payment but increases total interest paid (use only for cash flow relief)
- Lower rate, longer term: Lowers your monthly payment; the total interest impact depends on how much the rate dropped versus how much the term extended
How to Refinance: Step-by-Step Process
Step 1: Check Your Current Loan Details
Contact your lender or check your online account to gather your current loan balance, interest rate, monthly payment, remaining term, and payoff amount. The payoff amount may differ from the remaining balance because it can include accrued interest or fees. Also check your original loan agreement for prepayment penalties.
Step 2: Check Your Credit Score
Get your free credit score from your bank, credit card issuer, or annualcreditreport.com. Knowing your score before you shop determines the rate you can expect to qualify for. See our Auto Loan Rates by Credit Score guide for rate expectations by FICO band.
Step 3: Shop Multiple Lenders (Rate Shopping Window)
Get quotes from at least 3 lenders: your current bank, a credit union, and an online lender. Multiple auto loan applications submitted within a 14-day window count as a single credit inquiry on your FICO score. This rate-shopping provision applies to FICO scoring models; VantageScore uses a similar 14-day window. Compare APR (not just the rate), fees, term options, and total cost across all offers.
Step 4: Apply and Complete the Transfer
Submit your application with the best lender. The new lender pays off your current loan directly. Your new loan starts with the refinanced terms. Remember to update your auto insurance with the new lienholder. The total timeline from application to funding is typically 7-14 days.
Pro tip: Credit unions often offer auto refinance rates 1-3 percentage points lower than dealer financing. If you are not already a credit union member, many have easy eligibility requirements.
Refinancing vs. Making Extra Payments
An alternative to refinancing is simply making extra payments on your current loan. Extra payments reduce your principal faster, saving interest without the need to apply for a new loan.
| Situation | Better Strategy | Why |
|---|---|---|
| Rate improvement of 2%+ available | Refinance | Larger rate drop saves more than extra payments |
| Large balance ($10,000+), 24+ months remaining | Refinance | More principal means more interest saved |
| Small balance (<$5,000) | Extra payments | Savings from refinancing too small to justify effort |
| Less than 18 months left | Extra payments | Not enough time to recoup refinancing fees |
| Rate is already competitive | Extra payments | Minimal rate improvement available |
You can also combine both strategies: refinance to a lower rate AND make extra payments for maximum savings. If you have multiple debts, consider whether to prioritize your auto loan or other obligations using the debt snowball vs. avalanche method.
Use the Extra Payment Feature to Compare StrategiesFrequently Asked Questions
When should I refinance my car loan?
Refinance when your credit score has improved by 50 or more points, market rates have dropped 1-2%, or you accepted dealer financing at an above-market rate. Ensure you have at least 12-24 months remaining on your loan for the savings to be meaningful.
How much can I save by refinancing my car loan?
Savings depend on your rate reduction and remaining balance. Reducing a $20,000 loan from 8% to 5.5% APR with 48 months remaining saves approximately $1,300 in total interest. Use our Auto Loan Calculator to see your exact savings.
Will refinancing my car loan hurt my credit score?
Refinancing causes a hard inquiry on your credit report, which typically results in a 5-10 point temporary drop. However, if you shop multiple lenders within 14 days, FICO counts all auto loan inquiries as a single inquiry. The temporary dip typically recovers within 2-3 months.
Can I refinance my car loan with bad credit?
Yes, but the rate improvement may be limited. If your credit has improved from deep subprime to subprime, even a 2-3% rate reduction can save meaningful interest on a large balance. Credit unions are often more flexible than banks for lower-credit-score borrowers.
How long after buying a car can I refinance?
Most lenders require 60-90 days after the original loan before refinancing. Some allow immediate refinancing. There is generally no advantage to waiting longer than 90 days unless your credit score is actively improving.
Is it worth refinancing for 1% lower interest?
On a $20,000 balance with 48 months remaining, a 1% rate reduction saves approximately $400-$500 in total interest. If refinancing fees are under $200, the breakeven point is 2-3 months. For larger balances or longer terms, the savings are proportionally greater.
Does refinancing extend my loan term?
Not automatically. You choose the new term when you refinance. You can refinance to a shorter term (higher payment, more savings) or a longer term (lower payment, potentially more total interest). The best outcome is a lower rate with the same or shorter term.
What fees does refinancing a car loan involve?
Typical fees include a title transfer or lien fee ($10-$75), state re-registration ($0-$100), and occasionally an application fee ($0-$50). Most auto loan refinances cost $100-$500 total. Unlike mortgages, auto refinancing has minimal closing costs.
The Bottom Line
Refinancing your car loan can save hundreds or even thousands of dollars in interest--but only when the conditions are right. The ideal scenario is a meaningful rate reduction (1-2 percentage points or more) on a loan with a large remaining balance and at least 24 months of payments left.
Before you refinance, calculate your breakeven point, verify that your car qualifies (under 100,000 miles, not upside down), and shop at least three lenders within a 14-day window to protect your credit score. If refinancing does not make sense for your situation, consider making extra payments on your current loan instead.
Lowering your auto payment can also improve your debt-to-income ratio, which may help you qualify for a larger mortgage when you are ready to buy a home. Or you can redirect the monthly savings toward building your savings.
Ready to See Your Refinancing Savings?
Enter your current loan balance, rate, and term alongside the new refinance terms to see the exact monthly and total interest difference.
Calculate Your Auto Loan Savings