There is a version of car buying where the trade-in is the easy part. You hand over the keys, they knock some money off, everybody shakes hands. That version is getting rarer.
Edmunds put hard numbers on it for the second quarter of 2026, and they are not comfortable reading.
- Trades underwater
- 29.6%Of trade-ins toward a new vehicle, Q2 2026
- Average shortfall
- $6,884Highest for any second quarter on record
- Monthly payment
- $944Vs. $777 for the average new-vehicle buyer
What “underwater” actually means
You are underwater when your loan payoff is higher than what the vehicle is worth. Owe $24,000, car appraises at $18,000, you are $6,000 in the hole.
That $6,000 does not disappear when you trade. It gets added to the financing on the next car.
The share of new-vehicle trade-ins in that position hit 29.6% in Q2.
That is down a touch from 30.9% in Q1, but up from 26.6% a year earlier, and it is the highest second-quarter mark since 2020.
The part that costs you
Rolling negative equity does two things at once. It raises the balance, and it usually pushes you into a longer term to keep the payment tolerable. Both add interest.
Buyers who rolled negative equity into a new loan in Q2 averaged $944 a month. The average new-vehicle buyer paid $777.
That is $167 a month, every month, for carrying someone else’s problem — which is to say, your own from three years ago.
Over the life of the loan it gets worse. Edmunds projects those buyers will pay an average of $16,270 in interest, against $9,811 for the average new-vehicle buyer.
Both figures are all-time highs.
Run it yourself on round numbers. Take a $35,000 loan at 6.39% — the average new-car rate in Experian’s Q1 2026 data — over 72 months. That is $586.52 a month.
Add $6,884 of negative equity to the same loan at the same rate and term and the payment goes to $701.88. You will pay about $8,306 more across those six years to clear $6,884 of old debt.
You are not paying off the old car. You are refinancing it at a worse rate, over a longer term, secured by a vehicle that is already losing value.
Why this keeps happening
Three things compounding.
Long terms. A 72- or 84-month loan builds equity slowly. Depreciation does not wait.
For the first several years you are behind, and if you trade during that stretch, you are trading underwater by definition.
Trading too early. The average age of a negative-equity trade-in in Q2 was 4.0 years, a Q2 record, up from 3.8 the year before.
Four years into a seven-year loan is the worst possible moment to move.
High starting prices. The average new-vehicle transaction price in June was $49,758. Finance most of that with little down and the gap opens immediately.
What to do instead
- Get your exact payoff before you shop. Call the lender. Not the app estimate, the ten-day payoff figure.
- Get the car appraised somewhere you are not buying. Two or three independent offers. The number a dealer gives you on a trade is negotiable and it is tangled up in the price of the car you are buying — separate the two.
- If you are underwater, seriously consider waiting. Six more months of payments on a car you already own is almost always cheaper than $167 a month for six years.
- If you must move, pay the difference in cash. Writing a check for $6,884 hurts once. Financing it hurts 72 times and costs more.
- Do not let anyone solve this with term length. If the fix for your payment is 84 months, the deal is telling you something.
The short version
Negative equity is the most expensive habit in car buying, and right now nearly a third of buyers have it.
Know your payoff, know your car’s real value, and if the two do not line up, the best move is usually to keep driving what you have.
Sources
- Q2 New-Vehicle Purchases with Negative Equity Trade-Ins Hit Record Monthly Payments and Interest Costs — Edmunds, July 17, 2026
- Auto Loan Rates and Financing for 2026 (Experian State of the Automotive Finance Market, Q1 2026) — Experian
- Kelley Blue Book Report: Industry-Wide Vehicle Prices Hold Steady in June — Cox Automotive, July 13, 2026
- Underwater car trade-ins are on the rise — and drivers owe a record amount — CNBC
DougCupples content is educational market commentary, not individualized financial or purchasing advice. Figures reflect the reporting dates shown and move quickly — confirm current numbers before you act on them.
Before you use this information
Auto market guidance works best when it is tied to a real vehicle, a real quote, and a real deadline.
If this article changes how you are thinking about a purchase, save the listing, the VIN, the mileage, the asking price, and the city where the vehicle is advertised.
For a trade-in question, write down your payoff amount, the vehicle condition, and any independent appraisal you already have.
For a financing question, compare the APR, the term, the down payment, the total amount financed, and the full out-the-door number.
Those details make it much easier to separate a fair Central Iowa deal from a monthly payment that only looks comfortable because the loan got longer.
When a price looks appealing, check whether the discount is attached to a required add-on, a longer term, a higher rate, or a trade allowance that moved money from one line to another.
When a vehicle looks expensive, check local supply before you walk away; a scarce trim can hold its number while a similar model across town has room to move.
The practical move is to slow the deal down long enough to compare the total cost, not just the headline price or the payment printed in large type.
Doug can help turn those details into better questions for the salesperson, the sales manager, or the finance office before you sign.
That is especially useful when the decision is close, because small changes in rate, term, fees, trade allowance, or timing can move the real cost by hundreds or thousands of dollars.
If you are shopping around Newton, Des Moines, or the surrounding Central Iowa market, local inventory and dealer supply matter more than a national headline.
- Ask for the out-the-door price in writing before you discuss payment.
- Compare similar vehicles within driving distance, not national averages alone.
- Check how long the specific VIN has been in stock.
- Confirm whether each fee is required by the state, the lender, or the dealership.