If you have recently received an insurance quote for an electric car and done a double-take, you are not imagining it. Electric vehicles cost more to insure than comparable petrol cars — typically 15–35% more, and sometimes considerably more for premium models.

The reasons are specific and mostly logical once you understand them. And importantly, there are genuine steps you can take to reduce the cost. This guide covers both: why EV insurance premiums run high, and what you can actually do about it.

Why electric car insurance costs more

Battery replacement risk

The battery is the most expensive component in any electric car — often worth 40–60% of the car's total value. A Tesla Model Y's 75kWh battery pack costs in the region of £10,000–20,000 to replace. Even a partial replacement following a minor accident can run to several thousand pounds.

Insurers price for worst-case scenarios. If a collision damages the battery — even superficially — many manufacturers require a full inspection and potential replacement. That risk is baked into every premium.

Specialist repair costs

Electric vehicles require technicians with specific high-voltage training. Not every bodyshop or repair centre can legally work on an EV's electrical systems. This reduces the pool of repairers, increases labour costs, and often extends repair times — which in turn increases the cost of a courtesy car.

As EV repair infrastructure improves, this premium should narrow. For now it is a real cost that insurers pass on.

Higher purchase values

Even with depreciation, most EVs carry higher market values than comparable petrol cars. Higher value means a higher pay-out in a total loss — which means a higher premium.

Parts availability

Some EV-specific parts — particularly for newer Chinese brands and lower-volume models — have longer lead times than established petrol car parts. Extended repair times increase costs across the board.

Which electric cars are cheapest to insure?

Insurance groups run from 1 (cheapest) to 50 (most expensive). Electric cars span the full range, though they tend to cluster in higher groups than equivalent petrol cars of the same size.

Lower insurance group EVs (relatively affordable to insure):

• MG ZS EV — insurance group 20–25
• Nissan Leaf — insurance group 18–23
• Vauxhall Corsa Electric — insurance group 20–24
• Renault Zoe — insurance group 16–22

Higher insurance group EVs (more expensive to insure):

• Tesla Model Y — insurance group 40–47
• Hyundai IONIQ 5 — insurance group 35–42
• Kia EV6 — insurance group 34–41
• BMW iX — insurance group 44–50

If keeping insurance costs low is a priority, the MG ZS EV and Nissan Leaf represent the most accessible options in the used market. Both are available for under £15,000 and carry meaningfully lower insurance groups than Korean or American rivals.

Five ways to cut your electric car insurance premium

1. Shop the specialist EV insurers

Mainstream comparison sites often return uncompetitive EV quotes because standard pricing models are not well-calibrated for electric vehicles. Insurers who specifically underwrite EVs — and have better claims data for them — often offer lower premiums. Search beyond the first comparison results.

2. Use a telematics policy

Black box or app-based telematics policies measure how you actually drive — speed, braking, cornering, time of day. If you are a careful, low-mileage driver, a telematics policy can reduce your premium substantially. EV drivers often score well on telematics because smooth, regenerative driving is precisely the behaviour these systems reward.

3. Declare accurate annual mileage

Many EV owners cover significantly fewer miles than they think — particularly if the car is used mainly for local and commuting journeys. Accurately declaring lower annual mileage reduces your premium. Do not understate it dishonestly, but equally do not guess high if you actually drive low.

4. Increase your voluntary excess

Offering to pay a higher voluntary excess reduces your premium. For an EV where you are confident about not making small claims, this can be a sensible trade. Keep the total excess (voluntary plus compulsory) at a level you could genuinely afford to pay if needed.

5. Consider overnight charging location

Insurers factor in where the car is parked overnight. A car on a private driveway or in a garage is lower risk than one parked on a public street. If you have the option to secure your EV overnight, declare it — it can make a measurable difference to your premium.

How insurance fits into the total running cost picture

Insurance is the one running cost category where the electric car loses ground to petrol. For a typical mid-range EV like the Hyundai IONIQ 5, expect to pay £200–£500 more per year in insurance than for a comparable petrol SUV.

Over three years, that is £600–£1,500 more in premiums. Against a home-charging fuel saving of roughly £700–£1,000 per year, the insurance premium erodes but does not eliminate the overall financial advantage of going electric.

For most home-charging EV owners, the net position after fuel savings, servicing savings, and insurance premiums is still in the EV's favour — but by a smaller margin than the headline fuel cost comparison suggests.

For the complete picture, see our breakdown of whether it is cheaper to run an electric car.