EV Insurance Groups Explained (2026): Why Electric Cars Sit Where They Do

If you are shopping for an electric car in the UK, “insurance group” is the number that quietly decides a big part of your running costs. Every car sold here is rated from 1 to 50 — group 1 being the cheapest to insure, group 50 the most expensive — and EVs sit across almost the whole range.

Here is what the groups actually mean, why electric cars often land higher than their petrol equivalents, and how to use the number sensibly when you buy.

What insurance groups are

Group ratings are set by the Thatcham Research Group Rating Panel, working with the Association of British Insurers. They assess each new model — and each trim of that model separately — against a handful of factors:

• Repair cost and time — how expensive and slow it is to put right after a crash.
• Parts prices — the cost of common replacement panels and components.
• Performance — acceleration and top speed, which correlate with claim frequency.
• Safety — active safety features that help avoid crashes pull the rating down.
• Security — how hard the car is to steal, and whether it has an approved alarm or immobiliser.

Insurers are not obliged to use the group, and none price on it alone — but almost all use it as a starting point. Move up a few groups and you will usually feel it.

Why EVs often sit higher

Electric cars tend to score badly on the factors that push a group up, and well on the ones that pull it down:

Factor	Effect on an EV’s group
List price	Higher than an equivalent petrol car — pushes up
Battery pack	Very expensive to replace — pushes up
Repair network	Specialist, high-voltage-trained shops — pushes up
Acceleration	Instant torque, quick 0–60 — pushes up
Safety tech	Strong Euro NCAP scores, good driver assistance — pulls down

That combination is the whole story behind why EV insurance is so expensive. It is also why the gap is narrowing: as more repairers get certified and battery prices fall, some EVs have been re-rated downwards.

Roughly where popular EVs land

These are approximate bands — the exact group depends on trim, battery size and model year, so always check the specific car you are quoting.

EV	Typical group band (approx)
Renault Zoe	Mid-teens to low 20s
Fiat 500e	High teens to mid-20s
Nissan Leaf	Low to mid 20s
Peugeot e-208	Low to mid 20s
MG4	Mid to high 20s
Skoda Enyaq	High 20s to low 30s
Hyundai Ioniq 5	Around 30 to mid 30s
Polestar 2	Mid 30s to around 40
BMW i4	High 30s to mid 40s
Tesla Model 3	Around 40 to high 40s

Bands are indicative for recent model years and vary by trim and specification. Check the group for your exact configuration before you buy.

The pattern is consistent: small, modest-power hatchbacks sit lowest; premium and performance saloons sit highest. That mirrors what we found in which EV brands are cheapest to insure.

The trim trap

This is where most buyers lose money. Two versions of the same car can sit several groups apart — a single-motor Polestar 2 and a Performance-pack version are rated differently, as are a standard-range and long-range Tesla Model 3.

If you are choosing between trims, get a quote on both before you decide. The cheaper trim sometimes saves you more per year in insurance than the price difference suggests, particularly for younger drivers.

How much does the group actually matter?

Less than people assume. The group is one input; your own risk profile is often bigger. In practice:

• Moving down 5–10 groups usually produces a noticeable saving.
• Moving down 1–2 groups may produce almost nothing.
• Your postcode, age, mileage and no-claims bonus can each swing the price more than a modest group difference.

So treat the group as a filter when shortlisting cars, then let real quotes decide. A group-25 EV is not automatically cheaper for you than a group-30 one.

Using groups when you buy

1. Shortlist by group — narrow to two or three cars in a sensible band.
2. Check the exact trim, not the model in general.
3. Quote all of them on identical details before committing — see how to compare EV insurance quotes.
4. Consider a used example. The same car a few years old often sits in the same group but has a much lower value, which usually lowers the premium — more in new vs used EV insurance cost.
5. Then work the premium down with the tactics in how to lower your EV insurance premium.

Bottom line

Insurance groups run 1–50 and reflect repair cost, parts, performance, safety and security. EVs skew higher because of value, battery cost and specialist repairs — but they span the whole range, and small electric hatchbacks sit comfortably in the affordable bands. Use the group to shortlist, check the trim, then let actual quotes make the decision.