The one tax that is a real contentious obstacle to the UK EV rollout is the so-called “luxury car tax.” Officially known as the Expensive Car Supplement (ECS), this surcharge has sparked significant debate, especially as it now applies to EVs for the first time in 2025. In this article, we break down what the ECS is, how it works, and why it has become a flashpoint in the UK’s EV transition.

What Is the Expensive Car Supplement (ECS)?

The Expensive Car Supplement is an additional charge within the Vehicle Excise Duty (VED) system. It applies to cars with a list price (also known as the Manufacturer’s Recommended Retail Price) over £40,000. This charge was introduced in April 2017 as part of broader VED reforms designed to increase revenue and ensure higher-emission and higher-value vehicles contributed more to road upkeep and public finances.

For five years after the first registration (from year two to year six), the owner of a qualifying vehicle must pay an additional £425 annually on top of the standard VED rate.

How Does the ECS Work in 2025?

Previously, EVs were exempt from both standard VED and the ECS as part of government efforts to incentivise zero-emission transport. However, from 1 April 2025, the ECS now applies to all vehicles over £40,000, including fully electric cars.

This change means that:

In year one, all zero-emission vehicles still benefit from a zero VED rate.
From year two onward, EV owners must pay both the standard VED (currently £195 for EVs) plus the ECS of £425 if their vehicle exceeded the £40,000 threshold at the time of purchase.

This adds up to a total annual tax bill of £620 from year two to year six, or £3,100 over five years.

MORE> Road Tax on EVs 2025 Guide

Why Is This Tax Considered a Problem in 2025?

The controversy lies in the fact that the ECS was originally designed to target luxury petrol and diesel vehicles, but now affects a wide range of EVs due to their higher manufacturing costs. According to industry analysts, the average price of a new EV in the UK is now over £50,000, driven up by battery costs and limited supply.

This means that mainstream electric models like the BMW i4, Tesla Model Y, and Kia EV6 are all captured by the ECS. For example:

The BMW i4 starts at £51,280
The Volkswagen ID.7 Tourer is priced at £51,795
The Tesla Model Y Long Range costs around £51,000

These are not exotic supercars, but common family EVs.

What Counts Toward the £40,000 Threshold?

It’s important to understand that the ECS is applied based on the list price at the time of purchase – not the discounted price you may negotiate or the value of the vehicle years later.

What counts toward the £40,000?

Base price of the car (as listed by the manufacturer)
Optional extras (e.g. upgraded paint, interior packages, technology upgrades)
Delivery charges and VAT

Even minor add-ons can tip a car just over the threshold, triggering the full five-year ECS liability. And because the surcharge is tied to the original list price, it also applies to used cars that were over £40,000 when new.

The Impact on Electric Vehicle Adoption

The UK government has introduced a Zero Emission Vehicle (ZEV) mandate, requiring that 28% of all new car sales in 2025 must be fully electric, ramping up to 80% by 2030. However, April 2025 data showed EVs making up just 20.4% of new registrations, and only 10.7% of private car sales.

With most EVs priced over £40,000, the ECS is now seen as a barrier to adoption. Industry figures such as Stellantis UK boss Eurig Druce and Ford have criticised the surcharge for creating mixed signals – pushing manufacturers to sell more EVs, while simultaneously penalising buyers who try to make the switch.

Are There Any Tax Breaks Left for EV Drivers?

While the ECS now applies, EVs still benefit from several financial incentives, such as:

No VED in the first year (a saving of £90-£200 compared to ICE vehicles)
No fuel duty (currently around 52.95p per litre for petrol/diesel)
Lower running costs due to electricity being cheaper than petrol
Exemptions from the London Congestion Charge and ULEZ (subject to registration)
Low Benefit-in-Kind (BiK) tax rates for company car drivers (still at 3% for EVs)

https://electriccarguide.co.uk/october-budget-how-the-government-could-drive-electric-vehicle-uptake/But for private retail buyers, the ECS stands out as a significant new cost that could undermine the total cost of ownership advantage that EVs previously enjoyed.

MORE> Current EV BIK Rates

Will the ECS Be Reformed?

In May 2025, Labour’s Minister for the Future of Roads, Lilian Greenwood, revealed in a letter to a local MP that the government is considering raising the £40,000 ECS threshold for EVs only. The plan may be outlined at a future fiscal event, likely the Autumn Budget in October.

This has caused a dilemma for prospective buyers. Many are now delaying EV purchases in the hope that the ECS will be scrapped or reformed. In the meantime, EV sales have slowed, and dealers are struggling to hit their ZEV mandate targets.

There’s also growing concern that tax uncertainty is itself a problem. Without a clear policy on EV incentives, both buyers and manufacturers face risk, which can dampen confidence in the market.

Should the ECS Apply to EVs at All?

This is now a point of national debate. Proponents of the ECS argue that:

EV drivers benefit from many other incentives
Taxing more expensive cars is fair and helps fund public services
Removing ECS for EVs would reduce tax revenue by millions

However, critics argue that:

The ECS was designed to curb emissions – but now it punishes zero-emission cars
The policy is misaligned with current EV pricing realities
It slows private adoption at a crucial time in the net-zero transition

The Final Word on the Luxury Car Tax

The UK’s Expensive Car Supplement may have started as a fair way to tax high-end ICE vehicles, but in 2025 it is increasingly seen as a blunt instrument in the age of electric mobility. With most EVs priced above the £40,000 threshold, the ECS now affects a significant portion of the market, including average families trying to make greener choices.

Unless the government acts to update the policy, it risks undermining its own climate goals and slowing the country’s EV momentum. With the next Budget months away, the industry is calling for urgent clarity. In the meantime, drivers are left in the awkward position of wondering whether going electric will be rewarded or penalised in the years to come.

MORE> EV Salary Sacrifice Scheme Providers

Jump back in open

John Ellmore

John is the Editor and Spokesperson for Electric Car Guide.

With over 20 years of writing experience, he has written for titles such as City AM, FE News and NerdWallet.com, covering various automotive and personal finance topics.

John’s market commentary has been covered by the likes of The Express, The Independent, Yahoo Finance and The Evening Standard.