Do Businesses Legally Need EV Chargers?

There is a persistent myth doing the rounds in UK boardrooms: that every business will soon be legally forced to install EV chargers. The truth is more nuanced, and getting it wrong costs money in both directions - some firms panic-buy hardware they don’t need, while others miss a mandatory requirement buried in their building plans until Building Control flags it.

This guide explains exactly what the law says, where the line sits between “must” and “may as well”, and how the grants and allowances stack up in mid-2026.

The short version

If you already occupy a building and aren’t touching the structure, there is no general legal duty to install EV chargepoints for staff or visitors. The obligation bites at the point of construction: Building Regulations Approved Document S (“Part S”), in force in England since June 2022, sets minimum EV provision for new and materially altered buildings.

For everyone else, installation is voluntary - but the commercial and workforce pressures pushing businesses to fit chargers are real, and the funding to offset the cost is unusually generous right now.

Building Regulations Part S: the rule that actually mandates chargers

Part S applies to new buildings, buildings undergoing major renovation, and changes of use - not to your existing car park as it stands. The trigger for non-residential buildings is the number of parking spaces.

New non-residential buildings

Scenario	Requirement under Part S
New non-residential building with more than 10 parking spaces	At least 1 chargepoint, plus cable ducting to at least 1 in 5 of the remaining spaces
New non-residential building with 10 or fewer spaces	No chargepoint mandated
Major renovation (more than 10 spaces after works, where the car park or electrical infrastructure is affected)	Same one-chargepoint-plus-ducting standard applies

The “ducting to one in five” point matters. Even where you only have to energise a single bay today, Part S forces you to lay the underground infrastructure so future chargers can be added cheaply. Retrofitting ducting later - digging up a finished car park - is where costs spiral, so the regulation is essentially trying to save building owners from themselves.

There are sensible exemptions: where the cost of connecting to the grid would exceed 7% of the total renovation cost, the requirement can be relaxed. That threshold is exactly where dynamic load management earns its keep - by sharing the spare capacity in your existing supply, you can often meet Part S without triggering an expensive network upgrade.

What Part S does not do

Part S says nothing about your existing, untouched building. If you’re not building, extending, or materially renovating, it imposes no duty at all. Anyone telling you “the law now requires all workplaces to have chargers” is either confused or selling something.

The regulation that catches out public car parks

There is a second rulebook that trips businesses up: the Public Charge Point Regulations 2023. These apply where you offer public, paid-for charging - a hotel, retail park or leisure centre selling charging to visitors, for instance. They set standards on pricing transparency, 99% reliability for rapid chargers, contactless payment and a 24/7 helpline.

Crucially, they do not apply to chargers reserved for your own staff or fleet. If your bays are private and free to employees, you’re outside their scope. Know which side of that line your project sits on before you specify hardware, because public-facing compliance adds cost.

So should you install anyway? The pressures are mounting

Legal compulsion is only half the picture. Several forces are pushing voluntary installation:

• Company-car fleets are going electric fast, driven by benefit-in-kind tax. Electric company-car BiK is just 4% in 2026/27 - not the “2%” figure still quoted in stale blog posts, which lapsed in April 2025. It remains a fraction of the 25%+ levied on petrol equivalents, so your fleet drivers increasingly need somewhere to charge.
• Staff expect it. An employee charging their own EV at a workplace charger pays no benefit-in-kind at all - this is specifically exempt under s237A ITEPA 2003. It’s a genuinely tax-free perk you can offer.
• Depot economics are compelling. For van and HGV operators, charging on-site runs at roughly 7p per mile against about 22p for diesel. On a busy fleet that gap repays the infrastructure quickly.

We walk through the payback maths in detail in is workplace EV charging worth it.

The funding position in mid-2026 (and the myths to bin)

This is where most online advice is out of date. Here is the current picture, verified as at July 2026:

Scheme	What it gives	Deadline
Workplace Charging Scheme (WCS)	Up to £500 per socket (raised from £350 on 1 April 2026), covering 75% of purchase and install cost, up to 40 sockets	Voucher scheme running to 31 March 2027
Depot Charging Scheme	70% of costs up to £1m for van, HGV and coach depots	Ongoing
100% First-Year Allowance	Full first-year capital allowance on chargepoint plant against corporation tax	To 31 March 2027 (5 April 2027 for income tax)

Three myths worth correcting:

1. “The WCS is £350 a socket.” No - it rose to £500 on 1 April 2026. Old figures understate your grant by 43%.
2. “There’s a grant for staff and fleets.” The former EV Infrastructure Grant marketing around “staff and fleets” has closed; the live routes for businesses are the WCS and, for commercial vehicle depots, the Depot Charging Scheme.
3. “22kW charges cars twice as fast as 7kW/11kW.” For most workplace car parks this is false. The overwhelming majority of EVs cap their onboard AC charger at 7kW or 11kW, so a 22kW three-phase unit is frequently oversized and its extra output simply goes unused. Full breakdown in charger types.

See the complete, current list in grants and funding.

What this means for kit choice and cost

Because the vast majority of workplace charging is overnight or all-day dwell time, AC chargers are almost always the right answer - not expensive DC rapids. Indicative 2026 pricing:

Charger	Typical installed cost per bay	Best for
7kW AC	£800 - £1,500	Staff and visitor car parks, all-day dwell
22kW AC	£2,500 - £4,500	Only where vehicles genuinely accept 22kW - often oversized for cars
50kW DC rapid	£25,000 - £45,000	Fleet turnaround, public forecourts, short-dwell sites

Given that a 7kW unit costs a fraction of a rapid and suits nearly every employee use case, over-specifying is the most common and most expensive mistake we see. Full breakdown in our cost guide.

The one deadline you can’t shortcut: grid approval

Whatever the law requires, the grid connection process governs your timeline. For three-phase or higher-load installations you need G99 approval from your Distribution Network Operator (DNO) before works begin. DNO quotes currently take between 5 and 65 working days to come back.

The good news: since 1 April 2023 there is no reinforcement charge - you no longer pay for network upgrades your connection triggers. The bad news: the lead time still applies, and it hasn’t shortened. This is the single biggest reason to start early, and another argument for load management, which can let you add sockets within your existing capacity and avoid the DNO queue altogether.

Putting it together

• Existing building, no works planned? No legal duty to install - but the tax, staff-retention and fleet-cost case is strengthening every year.
• Building new, or renovating, with more than 10 spaces? Part S applies: at least one chargepoint plus ducting to one in five bays. Plan it in from day one; retrofitting ducting is where budgets break.
• Selling charging to the public? The Public Charge Point Regulations 2023 add reliability and payment obligations on top.

Compliance is the floor, not the ceiling. With the WCS at £500 a socket, a 100% first-year allowance and tax-free staff charging all live through 2027, there is rarely a better window to move from “do we have to?” to “we may as well”.

Want a clear answer for your specific site - whether Part S applies, what capacity you have, and what it will cost? Get a free quote and we’ll size it properly.