The Right Time to Refinance Depends on Your Interest Rate and Loan Age
You can refinance a car loan at almost any point after you take it out, but waiting until you have built some equity in the vehicle and your credit has stabilized usually works in your favor. Most lenders want to see that you have made at least a few months of on-time payments before they will consider refinancing you. The real question is not whether you can refinance, but whether refinancing will actually save you money or improve your situation.
The math works like this: if your current interest rate is significantly higher than what lenders are offering now, and you have enough time left on your loan to recoup the costs of refinancing, it makes sense to move forward. If you are only a year or two away from paying off the car, the savings may not justify the fees involved. Refinancing typically costs between $0 and $500 in process, title transfer, and documentation fees, depending on your lender and state.
Key Takeaways
- Most lenders require you to have made at least three to six months of consecutive on-time payments before they will refinance your loan.
- Refinancing makes financial sense only if your new interest rate is at least one to two percentage points lower than your current rate.
- You need at least two to three years remaining on your loan for the interest savings to outweigh refinancing fees.
- Your credit score at the time you refinance directly affects the interest rate you receive, so improving your score before you explore can lower your costs.
How Many Months of Payments You Need Before Refinancing
Most traditional lenders and credit unions will not refinance a car loan until you have made at least three to six months of on-time payments. This waiting period protects the lender by showing them that you are a reliable borrower. Some lenders are more flexible and may refinance after two months of payments, but this is less common.
The reason for this requirement is straightforward: lenders want proof that you can handle the loan you already have. If you refinance when ready after buying the car, you have no payment history for the new lender to review. They are taking on more risk, and they price that risk into your interest rate or decline you outright.
If you bought your car with a very high interest rate and want to refinance as soon as possible, focus on making every payment on time and in full during those first months. A single late payment resets the clock and makes lenders hesitant to work with you.
When Your Interest Rate Savings Justify the Refinancing Costs
Refinancing only makes financial sense if the interest rate you receive is meaningfully lower than what you are currently paying. A drop of one percentage point is the bare minimum to consider; two percentage points or more is where you will see real savings. For example, if you are paying 8% on a $20,000 loan with four years remaining, dropping to 6% could save you over $1,500 in interest over the life of the loan.
To calculate whether refinancing is worth it, you need to know three things: your current interest rate, the interest rate a new lender is offering you, the remaining balance on your loan, and how many months you have left to pay. You can use an online car loan calculator to compare the total interest you will pay under each scenario. Subtract the refinancing fees from your projected savings. If the number is positive and substantial, refinancing is probably worth your time.
If your current rate is already competitive—say, 4% or lower—refinancing may not be possible. Interest rates have fallen significantly in recent years, but they fluctuate. If rates have risen since you took out your loan, refinancing will not help you.
How Much Time You Need Left on Your Loan
The longer your remaining loan term, the more interest you will pay overall, and the more you stand to save by refinancing. If you have only one year left on your loan, refinancing fees will eat up most or all of your savings. If you have four or more years remaining, refinancing becomes much more attractive.
A useful rule of thumb: if you have fewer than two years left on your loan, the math usually does not work in your favor. If you have two to three years remaining, refinancing can make sense if your interest rate drops by at least one percentage point. If you have more than three years left, refinancing becomes increasingly worthwhile, especially if you can lower your rate by two percentage points or more.
Keep in mind that refinancing resets your loan term. If you refinance a three-year-old five-year loan into a new five-year loan, you are extending your total payoff date by two years. Some people refinance into a shorter term to pay off the car faster, even if the monthly payment stays roughly the same.
How Your Credit Score Affects Your Refinancing Options
Your credit score at the time you refinance determines the interest rate you receive. If your score has improved since you took out the original loan, you may may have access to for a much better rate. If your score has dropped, refinancing may not help you—or may actually cost you more.
Credit scores typically improve over time as you make on-time payments and pay down debt. If you are in the early months of your car loan and your credit was poor when you bought the car, waiting six to twelve months while you build a stronger payment history can meaningfully improve your score. A 50-point improvement in your credit score can translate to a 0.5% to 1% lower interest rate, which adds up quickly on a car loan.
Before you contact a lender about refinancing, you can check your credit score for free through AnnualCreditReport.com or through your bank or credit card issuer. If your score is still low, you may want to wait a few more months and focus on on-time payments before you refinance.
Refinancing When You Are Underwater on Your Loan
If you owe more on your car than it is worth—a situation called being "underwater"—refinancing becomes more complicated. Lenders are reluctant to refinance underwater loans because they have less collateral to recover if you default. Some lenders will still refinance you, but they may charge a higher interest rate to offset the risk.
If you are underwater and want to refinance, focus first on paying down the principal as much as possible. Every extra payment you make reduces the gap between what you owe and what the car is worth. Once you have positive equity—meaning you owe less than the car is worth—you will have much better refinancing options and lower interest rates.
You can check your car's current value using Kelley Blue Book or NADA Guides. Compare that number to your current loan balance to see where you stand.
Where to Refinance and What to Compare
You can refinance through your current lender, a different bank, a credit union, or an online lender. Each has different requirements and interest rates. Credit unions often offer lower rates than banks, especially if you are a member, but you have to meet their membership requirements first.
When you shop for refinancing, contact at least three lenders and ask for a rate quote. Most lenders can give you a preliminary rate without a hard credit inquiry, which means checking rates will not damage your credit score. Once you have quotes from multiple lenders, compare not just the interest rate but also the fees, the loan term, and any prepayment penalties. Some lenders charge a fee if you pay off the loan early, which can offset your refinancing savings.
The refinancing process typically takes one to two weeks from process to funding. During that time, you continue making payments on your original loan as usual.
Frequently Asked Questions
Can I refinance my car if I still owe money on it?
Yes. Most car refinancing happens on loans that still have a balance. The new lender pays off your old loan and issues you a new one. You do not need to own the car outright to refinance it.
Will refinancing hurt my credit score?
A hard credit inquiry for refinancing will lower your score by a few points temporarily, usually for three to six months. However, if refinancing lowers your overall debt and you make on-time payments on the new loan, your score will recover and likely improve over time. Checking rates from multiple lenders within a short window (usually 14 to 45 days) typically counts as a single inquiry, so shop around without worrying about multiple hits.
What if my car is worth less than I owe on it?
You can still refinance, but lenders will be more cautious. Focus on making extra payments to build equity first. Once you owe less than the car is worth, you will have better refinancing options and lower interest rates available to you.
Can I refinance if I have a bad credit history or missed payments?
It depends on how recent the missed payments are and how many you have had. Most lenders want to see at least six to twelve months of on-time payments after a missed payment before they will refinance you. Some lenders specialize in working with borrowers who have imperfect credit, but they typically charge higher interest rates.
How often can I refinance my car?
There is no legal limit to how many times you can refinance, but lenders may be reluctant to work with you if you refinance very frequently. Refinancing multiple times in a short period can signal financial instability. Most people refinance once or twice over the life of a car loan.