Negative equity means you owe more on your car loan than the car is currently worth. It is more common than most people realize, especially in the first two years of a loan when depreciation is fastest and your balance is still high.
The short version of what this means for refinancing: it does not automatically disqualify you, but it does make things harder and more expensive. Most lenders have LTV limits, meaning they will only refinance up to a certain percentage of the vehicle’s value. If you are significantly underwater, some lenders will decline outright. Others will approve but at a higher rate.
This article explains how to calculate exactly where you stand, what your options are, and how to decide which path makes the most sense for your situation.
Why negative equity happens so fast
A new car loses roughly 20 to 30 percent of its value in the first 12 months. A used car depreciates more slowly but still drops in value every month. Your loan balance, on the other hand, falls slowly at first because early payments are mostly interest with very little going toward the principal.
That timing mismatch is what creates negative equity. The vehicle loses value faster than your loan balance shrinks, and for the first year or two you are almost always underwater to some degree on a new car loan.
Here is a concrete example. You buy a car for $30,000 and finance the full amount at 6 percent for 60 months. After 12 months your loan balance is approximately $24,700. But the car, which lost 30 percent of its value in year one, is now worth around $21,000. You owe $24,700 on a car worth $21,000. That is $3,700 in negative equity, and you have been making payments for a full year.
This is not an unusual situation. It is actually the default situation for most new car buyers in the first year or two of ownership.
How lenders measure the problem
Lenders use a calculation called loan-to-value, or LTV, to measure how underwater you are. The formula is your loan balance divided by the current vehicle value, multiplied by 100.
So using the numbers above, $24,700 divided by $21,000 multiplied by 100 gives you an LTV of about 117 percent.
Most prime lenders cap their refinance programs somewhere around 100 to 110 percent LTV. Some stretch to 120 percent for well-qualified borrowers. Above 120 percent, your options at standard lenders essentially disappear. You are not completely out of options, but the lenders willing to work with you at that LTV level will charge significantly higher rates.
The practical implication: your LTV number is often more important than your credit score when it comes to whether a refinance is possible and at what rate.
Three ways to deal with negative equity before refinancing
You have three realistic paths when you are underwater and want to refinance.
The first is making a lump sum payment to reduce the balance. This is the most direct approach. If your LTV is 117 percent and a lender requires 110 percent or below, you can calculate exactly how much you need to pay to hit that threshold. In the example above, you need to get your balance from $24,700 down to $23,100 to hit 110 percent LTV on a $21,000 vehicle. That is a $1,600 payment.
The question to ask is whether that $1,600 is worth it. If the refinance saves you $60 a month and the lump sum payment plus any refinance fees takes 30 months to recover, but you plan to keep the car for 48 more months, the math works. Run it through the refinance calculator with the exact numbers before you commit.
The second path is waiting. If you cannot afford a lump sum payment, time will eventually solve the problem. As you keep making payments, your balance drops and the vehicle’s depreciation slows. Most vehicles hit their steepest depreciation in the first two years and then level off considerably. By year three on most loans, the balance and value curves start converging.
The downside of waiting is that you keep paying your current rate in the meantime. If your current rate is 12 percent and a refinance would get you to 7 percent, every month you wait costs you real money. Calculate how much you are losing per month by staying at the current rate and weigh that against the timeline for your LTV to come down naturally.
The third path is finding a lender that accepts higher LTV ratios. Some online lenders and specialty finance companies will go above 120 percent LTV, though not at competitive rates. This option is worth exploring if your current rate is extremely high, say above 15 percent, because even a high-LTV refinance at 11 percent is meaningfully better. But if your current rate is already reasonable, stretching into a high-LTV product at an elevated rate rarely makes financial sense.
What about rolling negative equity into a new loan
Some lenders will allow you to roll negative equity into a new loan, meaning they finance not just the car’s value but also the amount you are underwater. This is sometimes called a cash-in reverse or an upside down refinance.
Be careful with this. Rolling negative equity into a new loan does not make it disappear. It just moves the problem forward. You now start the new loan already underwater, which means you will be underwater for even longer and paying interest on debt that has no asset backing it.
The only situation where this makes clear sense is if the rate difference is large enough that you save more in interest than the rolled-in equity costs you. That is a narrow window and requires careful math to confirm. Run both scenarios in the calculator before agreeing to anything.
GAP insurance and negative equity
If you are underwater on your loan, GAP insurance becomes particularly important. GAP covers the difference between what your insurance company pays out after a total loss and what you still owe on the loan. Without it, if your car gets totaled while you are underwater, you could owe thousands of dollars on a vehicle you no longer have.
If you currently have GAP on your loan and you refinance, check whether your GAP coverage transfers to the new loan or whether you need to buy a new policy. Many GAP policies cancel automatically when the original loan closes. Replacing it is an additional cost that needs to go into your break-even calculation.
How to calculate your position right now
Four numbers to pull together before you do anything else.
Your current loan balance, from a formal payoff quote, not your app balance. Your vehicle’s wholesale value, from Kelley Blue Book or NADA using the trade-in or dealer wholesale estimate, not the private sale price. Your current LTV, which is the balance divided by the value multiplied by 100. And your target LTV, which is whatever your preferred lender requires.
Once you have those four numbers, the math on whether a lump sum payment makes sense is straightforward. Subtract the target balance from the current balance and that is the payment you need to make.
Then run both loan scenarios, current rate vs refinance rate, through the calculator to see whether the savings justify the lump sum plus the refinance fees. If they do and your break-even is under 12 months, it is almost certainly worth doing.
The bottom line
Negative equity is not a permanent block on refinancing. It is a math problem with a few different solutions depending on how underwater you are, how much cash you have available, and how long you plan to keep the vehicle.
The most important thing is to know your exact numbers before you approach any lender. Walk in knowing your LTV, your payoff figure, and your break-even calculation. Lenders respond better to borrowers who understand their own file, and you will be in a much better position to evaluate whether the deal they offer you is actually worth taking.
Last reviewed: March 2026. Vehicle depreciation estimates and LTV thresholds sourced from NADA Guidelines and Experian Automotive Finance Market reports.