Underwater on a Car Loan? What to Do About Negative Equity

By the Calculon Team · Updated October 7, 2026

You are "underwater," or have negative equity, when you owe more on your car loan than the car is worth. The FTC describes it simply: if you borrowed money to buy a car, "it's possible you owe more on your car loan than the car is worth." It is common, and on its own it is not an emergency. It becomes expensive when you need to get out of the loan before the balance catches up with the value.

Step 1: Measure it

1. Get your payoff amount from your lender. It can differ slightly from the balance on your statement because of interest since the last payment.
2. Find what the car is worth. Get real offers if you can: trade-in quotes from several dealers, as the CFPB suggests, and an instant offer or two from used-car buyers. Listings for the same model, year and mileage show what a private sale might bring.
3. Subtract. Value minus payoff is your equity. If it is negative, that is the amount you are underwater.

To see how it changes over the rest of your loan, or how a new loan would look, use the negative equity calculator.

Why rolling it into the next loan is the expensive option

When you trade in an underwater car, the shortfall does not go away. The FTC warns that a dealer may add it to your new car loan, take it from your down payment, or both. In its example of a $3,000 shortfall, "you'll have to pay interest on that $3,000 plus the cost of your new car." It adds that if a dealer told you they would pay off your car themselves but rolled the cost into your loan instead, that is illegal.

The CFPB studied this in vehicle loans made from 2018 to 2022. Of the loans in its data, 11.6% included negative equity from a prior loan, averaging $5,073 on new-car loans and $3,284 on used. Those borrowers financed more ($32,316 on average, against $26,767 with no trade-in), paid more each month ($626 against $493), took longer terms (73 months on average), and were more than twice as likely to have their account assigned to repossession within two years as borrowers with a positive-equity trade-in.

The pattern is a cycle: a new loan that starts deeper underwater takes longer to climb out of, which makes it more likely the next trade-in is underwater too.

Ways to get above water

• Keep the car and keep paying. Every payment lowers the balance, and later payments go more to principal. If the car is reliable, time alone usually closes the gap. The calculator shows roughly when.
• Pay extra toward principal. Even a modest extra amount each month shortens the underwater stretch. Check that your lender applies extra payments to principal and that there is no prepayment penalty.
• Refinance, carefully. A lower rate means more of each payment goes to principal. Refinancing into a longer term lowers the payment but usually slows how fast you build equity, so compare total cost, not just the payment.
• Sell privately. A private sale can bring more than a trade-in offer. If it still falls short, you pay the difference to the lender to release the title, from savings or a small personal loan. Compare that cost with paying interest on the shortfall for the whole term of a new car loan.
• If you must trade in, limit the damage. Pay down as much of the gap in cash as you can, choose a less expensive next car, and take the shortest term you can afford. Confirm the old loan was paid off: the CFPB suggests contacting your old lender about a week after the trade.

Protecting yourself while underwater

If the car is totaled or stolen, insurance pays based on the car's value, not your loan balance. GAP coverage pays the difference. It is optional (the FTC lists it among common add-ons and says it is ok to say no), but it can make sense during a long underwater stretch. Ask for the price and the exclusions, and compare the dealer's price with what your own insurer or lender charges.

Avoiding it next time

• Put more down. The CFPB notes a larger down payment lowers the amount you finance and may lower your rate.
• Choose a shorter term, so the balance falls faster than the car's value.
• Pay taxes, fees and add-ons upfront instead of financing them, or decline add-ons you do not need.
• Check the deal with the affordability calculator before you shop, and the out-the-door price calculator before you sign.

Sources

• FTC, Auto Trade-Ins and Negative Equity: When You Owe More than Your Car is Worth (accessed October 2026)
• FTC, Financing or Leasing a Car (accessed October 2026)
• CFPB, Negative Equity Findings from the Auto Finance Data Pilot (June 2024; data covers loans from 2018 to 2022)
• CFPB, Should I trade in my car if it's not paid off? (accessed October 2026)
• CFPB, How does a down payment affect my auto loan? (last reviewed September 2024)

This article is general information, not financial or legal advice.