How to buy a used electric car in the UK in 2026

The 2026 market in one paragraph

Used EV prices fell 30–45% between mid-2023 and end-2024, then stabilised. That correction is over. A three-year-old EV that listed at £40,000 new is now £18,000–£22,000 — genuinely affordable for the first time. The catch is uneven battery condition: a 2021 EV with 40,000 charge-cycles can be excellent or borderline depending on how it was charged. The battery report is the most important number on the page.

Battery state of health — the only number that matters

Manufacturers warrant batteries to 70% capacity for 7–8 years. In reality most batteries hold 88–93% at year three and 80–85% at year six. Anything below 85% on a five-year-old car is a flag — it usually means rapid DC charging was the primary method, which accelerates degradation. WheelsAI's battery health report (free on every EV listing where the dealer has uploaded it) pulls SoH live from the car's CAN data. If a dealer can't supply one, walk away or pay for an independent check at £35–£60.

Models that hold up — and models that have collapsed

Two lists.

• Hold up: Kia Niro EV, Hyundai Kona Electric (2019+), Tesla Model 3 (2019+), MG4, BMW i3 (last-of-line 120Ah), VW ID.3 post-2022. These keep 50–60% of new price at three years.
• Have depreciated hard: Nissan Leaf 40kWh (post-2018), Renault Zoe ZE40/ZE50, Peugeot e-208, Vauxhall Corsa-e, Citroën ë-C4. Some bargains here for the right buyer — but only if your usage is genuinely short-range urban.

Charging — the question that decides whether EV makes sense

If you have off-street parking and can fit a home charger (£800–£1,200 installed), EV running costs are 4–5x cheaper per mile than petrol. If you can't, public rapid charging at 70–80p/kWh undoes most of that — a Kona Electric on rapid-only costs about the same per mile as a 50mpg diesel. Be honest with yourself before you buy: where will the car charge 95% of the time?

Range and the 80% rule

Manufacturer WLTP range is laboratory. Real-world is 70–80% of WLTP at moderate speed, 55–65% on motorway at 70 mph, and 50–60% in cold winter. Plan around the realistic figure. A 250-mile WLTP car comfortably does 175 motorway miles in summer, 140 in February. If your weekly route doesn't fit that, the EV-vs-hybrid maths leans hybrid.

Tax, grants and what is left of the incentives

BIK on EVs ran at 2% through 2024 and rises 1 percentage point per year through 2028. For a salary-sacrifice buyer, that's still excellent. The Plug-in Car Grant is long gone for private buyers but home-charger grants (Workplace Charging Scheme, EVHS) still exist for landlords and businesses. VED on EVs becomes payable from 2026 (£10 first year, £180 standard rate) — built into the running-cost calculation now.