Buying a used electric car: what to check in the UK

What's different about buying a used EV

Buying a used electric car starts with the same checks as any used car: write-off history, outstanding finance, the recorded mileage, the paperwork. Four more sit on top of those: battery health, remaining warranty, charging, and road tax. Get all of them right and a used EV can be a cheap car to own.

It's part of our guide to buying a used car, and it runs in the order we'd work through at a viewing: battery first, because that's the expensive thing to get wrong, then warranty, charging, tax and the ordinary history checks.

More people are doing this for the first time. The SMMT reported that used battery-electric (BEV) transactions grew 32.0% year-on-year in the first quarter of 2026, to 86,943 cars and 4.3% of the market, while the used market overall was flat at -0.2%. That's still only about one buyer in 23 — so most first-time used EV buyers have nobody to ask.

Start with the battery: State of Health

The battery is the most valuable part of an electric car, so check it first. The number you want is its State of Health (SoH), and it comes as a single percentage. At 100% the battery still holds all the usable capacity it had when new; at 80%, a fifth of that capacity has gone. What you lose as that figure drops is range — not reliability. A faded battery doesn't leave you with a car that suddenly stops working.

The reassuring part is that batteries fade gradually rather than failing off a cliff.

That's fleet telematics data across 21 models, so treat it as the shape of the curve rather than a promise about the car in front of you. The more useful finding for a used buyer is what moves the rate. Geotab grouped the cars three ways by how they had been rapid-charged:

• Rapid-charged often, and mostly at high power — 3.0% degradation a year.
• Rapid-charged just as often, but at lower power — 2.2% a year.
• Rarely rapid-charged at all — 1.5% a year.

So "how has it been charged?" is a fair question at a viewing, and a car that's lived on motorway rapid chargers deserves more scrutiny than one trickled up overnight on a driveway.

Three ways to check State of Health before you buy:

• Read it off the car. Many EVs show a battery health or SoH figure in the dashboard menus or the manufacturer's app. Quickest first look.
• Do a range check. Charge to 100% and compare the range the car shows against its original official range — the WLTP figure quoted when it was new. A big shortfall is worth asking about, bearing in mind cold weather and driving style move that estimate around.
• Get a proper reading. An OBD2 reader (a plug-in diagnostic dongle) with the right app for the model, or an independent EV specialist, can pull a detailed SoH report. On a car costing thousands, that's money well spent.

Check the battery warranty, and whether it transfers

Most manufacturers cover the battery with a longer warranty than the rest of the car. Eight years or 100,000 miles, whichever comes first, with a guaranteed minimum capacity of around 70%, is the common shape. Volkswagen, for example, warrants its EV batteries "up to 8 years or 100,000 miles from point of first registration (whichever comes first)" to "ensure your battery retains 70% of its original capacity". That's one maker's published terms, not a universal rule — some use shorter periods, and the capacity floor varies — so check the specific brand rather than assuming.

Two things matter when you're buying used:

• How much cover is left. An eight-year warranty on a four-year-old car has four years to run, but only if the mileage cap hasn't been passed first. Work out both, and remember a high-mileage three-year-old car can be out of battery cover before an older, gentler-used one.
• Whether it transfers to you. Battery cover is normally attached to the car rather than the first owner, so it passes on when the car is sold. Volkswagen states plainly that its cover "can be passed on to future owners". Not every manufacturer treats it the same way, though, so confirm the remaining term, the mileage cap and transferability with the manufacturer using the car's VIN before you rely on it.

Replacing a battery outside warranty is expensive, and we're not going to put a figure on it: the ranges quoted around the internet are unattributed and vary hugely by model. What's fair to say is that it can run to thousands of pounds — which is exactly why the health check and the warranty status are worth getting right before you buy rather than after.

Work out how, and how much, you'll charge it

Running cost is where a used EV either makes sense or doesn't, and it comes down to where you plug in.

Charging at home is much cheaper. Domestic electricity carries the reduced 5% rate of VAT, per gov.uk. HMRC's position is that public charge points are standard-rated at 20%, and it restated that in Revenue and Customs Brief 4 (2026) in May 2026 — after a tribunal decision partly went the other way and HMRC applied for permission to appeal. So the tax treatment of public charging may change; 20% is what applies today. Add the higher headline prices on rapid chargers, and public rapid charging is the priciest way to fuel an EV.

Check the plug matches, too. In the UK, EVs use a Type 2 connector for home and slower AC charging and CCS for DC rapid charging. Nearly all modern EVs take both, but it's a five-second look worth doing.

If you rent, or own and live in a flat, and you have your own private off-street parking space, the government's chargepoint grant covers "75% off the cost of buying and installing a socket, up to a maximum of £500". A homeowner with an ordinary private driveway isn't eligible for that one. There's a separate grant for households that only have on-street parking and are installing a cross-pavement solution such as a charging gully — see gov.uk's chargepoint grants list for which scheme, if any, fits your situation.

Yes, you still pay road tax on an electric car

Electric cars were once exempt from road tax (Vehicle Excise Duty), but that exemption ended on 1 April 2025. Any guide telling you EVs are free to tax is out of date.

What a used EV costs to tax depends on when it was first registered. Per gov.uk, for the tax year to March 2027:

• Registered between 1 March 2001 and 31 March 2017: the standard rate of £20 a year.
• Registered 1 April 2017 to 31 March 2025: the standard rate of £200 a year.
• Registered on or after 1 April 2025: £10 for the first year, then the £200 standard rate.

There's one extra catch on pricier EVs. The Expensive Car Supplement adds £440 a year for five years, starting from the second time the car is taxed, on electric cars registered on or after 1 April 2025 with a list price over £50,000. That threshold rose from £40,000 to £50,000 on 1 April 2026 for zero-emission cars specifically; it stays at £40,000 for everything else.

Our free car check shows a car's current and past road tax status from the registration, so you can see what the car is actually taxed at rather than working it out from the bands.

Don't skip the checks you'd do on any used car

An electric car can hide exactly the same history as a petrol one, and this is the part the battery-obsessed checklists forget. Before you hand over money, confirm:

• It hasn't been written off. An EV can be a repaired insurance write-off (Cat S or Cat N) like anything else. Our guide to car history checks explains what the categories mean and why the marker stays on the record permanently.
• There's no outstanding finance. If the seller still owes money on the car, you can end up arguing with a finance company about who owns it. A private buyer who buys in good faith, with no notice of a hire-purchase or conditional sale agreement, is generally protected by Part III of the Hire-Purchase Act 1964 and can gain good title — but that protection doesn't stretch to every kind of secured lending, and having to rely on it is a fight worth avoiding. Our guide to outstanding finance explains where you stand.
• The mileage is genuine. Clocking happens on EVs too. Cross-check the recorded mileage against the MOT and service history.
• It isn't recorded as stolen. A stolen-car check is the same job on an EV as on anything else.

Our free car check shows the MOT history, recorded mileage and tax status from just the number plate. The write-off category, outstanding finance and stolen markers sit behind our Comprehensive check — you can see a sample Comprehensive check report before you buy one. Any check shows the car as it stands at the moment you run it, so if weeks pass between checking and buying, run a fresh check before you hand over money.

A few physical checks still matter, and two of them behave differently on an EV:

• Tyres. An electric car is usually heavier than the petrol equivalent, which tends to push tyre wear up. Check tread and condition — a fresh set isn't cheap, and EVs often wear wide, expensive sizes.
• Brakes. Here EVs tend to win: regenerative braking does much of the slowing, so pads and discs often wear less than on a comparable petrol car. Worth checking they haven't corroded from light use, though.
• Service history and MOT record. An EV has less to go wrong mechanically, but it still needs servicing. Look for a consistent record and a clean recent MOT.

There's no grant for a used electric car

One myth to clear up: government EV grants don't apply to used cars. The Electric Car Grant, which opened to manufacturers on 16 July 2025, takes up to £3,750 off eligible new electric cars priced at or under £37,000 (£1,500 for cars in the lower sustainability band). The older Plug-in Car Grant closed for cars in June 2022, and is now available only for wheelchair accessible vehicles.

A used EV's saving isn't a grant. It's the lower purchase price — the first owner has already paid the difference between new and used — plus cheaper running costs, provided you can charge at home.

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