What to know

The used-EV market is too varied for a single depreciation headline to make your buying decision. A change in average asking prices can identify a trend worth investigating. It cannot tell you what a particular electric vehicle will be worth when you are ready to sell it.

Cox Automotive’s October 16 EV report illustrates the split. September’s average used-EV listing price fell 1.8% from August to $36,767, although it remained 6.4% higher than a year earlier. Tesla’s average listing price rose 1.4% during the month, while several high-volume non-Tesla models declined. Used-EV supply tightened to 35 days. On the new side, average EV incentives fell from $6,509 in August to about $6,117 in September. The findings describe changing market averages, not a guaranteed price for your next car.

Depreciation needs a different question: how much of your purchase cost might you recover from the same vehicle later? An average of listings can change because the mix of ages, trims or models changes. It is not a controlled measurement of one vehicle losing value over a month. Treating a 1.8% decline in an asking-price average as your car’s monthly depreciation rate would create a forecast the report does not establish.

Begin with the exact used vehicle. Match model year, battery configuration, drivetrain, trim and mileage when searching for comparisons. Record whether the price includes conditions or required dealer charges. Then obtain a written offer for a reasonably equivalent new vehicle, with only verified incentives included. A used car’s discount from its original sticker price is less useful if a new alternative is currently offered for much less than that old sticker.

Battery coverage deserves its own document check. The Department of Energy explains that EV batteries are designed for extended use but wear over time, and that many manufacturers offer eight-year or 100,000-mile warranties. That general statement does not establish coverage on a particular used vehicle. Ask the manufacturer or dealer to confirm the warranty start date, remaining time and mileage, transfer conditions and applicable capacity provisions for the VIN. Request an available battery-health assessment and have an appropriately qualified inspector explain its limits.

Charging also belongs in the purchase decision. Write down where you expect to charge on an ordinary week and what you would use if that option became unavailable. For home charging, obtain any necessary installation quote and check permission requirements before assuming the setup is straightforward. For public charging, examine the stations and prices you would actually use. The relevant question is whether the arrangement fits your routine and budget.

A resale scenario can make the financial uncertainty easier to see. Suppose you purchase an EV for $28,000 before taxes and fees and sell it three years later. Resale values of $20,000, $17,000 and $14,000 would mean purchase-price losses of $8,000, $11,000 and $14,000 respectively. These are deliberately hypothetical outcomes, not forecasts. They exclude financing, insurance, energy, maintenance and transaction costs. Their purpose is to show how sensitive your plan is to a weaker resale result.

If you finance the purchase, add the projected loan balance at that three-year point. A vehicle can be useful and affordable to operate while still leaving an owner short of the money needed to clear the loan at sale. If the weaker scenario would force you to borrow again, consider a lower purchase price, a different financing structure or a longer intended holding period. Do not treat an optimistic resale estimate as money already available.

Lower routine maintenance can be part of an EV’s appeal. DOE notes that all-electric vehicles have fewer moving parts and fluids to maintain than conventional vehicles. That does not make every used EV inexpensive to own. Tires, insurance, condition and out-of-warranty repairs still belong in your comparison. Have each estimate tied to the vehicle and your expected use rather than to a general promise about EV savings.

The opportunity in this market is to buy selectively. Look for a documented vehicle at a competitive complete price, with a charging plan you can use and a resale risk you can carry. A Deal Review should make those assumptions explicit. The aim is a purchase that remains workable even if the future market is less generous than the best-case headline.

Original analysis and practical guidance based on the linked sources. Lead source published October 16, 2026; checked October 21, 2026.