Fleet EV Transition: The Charging Infrastructure Guide (2026)

Moving a business fleet to electric is a charging-infrastructure project first and a vehicle order second. Most UK fleets settle on a three-way charging mix — depot chargers for return-to-base vehicles, reimbursed home charging for take-home drivers, and public charging as the backstop — and the right blend falls out of your telematics data, not a charger brochure. One 2026 change to plan around: the dedicated infrastructure grant for staff and fleets closed to applications on 31 March 2026, so the Workplace Charging Scheme — up to £500 per socket, up to 40 sockets — is now the main grant route for depot and workplace charging (last checked July 2026; see GOV.UK). Our business grants guide covers what else is still claimable.

Depot, home or public: when each wins

Depot charging suits vans and pool cars that return to base with predictable overnight dwell. You control the tariff, and a VAT-registered business can generally recover VAT in full on electricity used to charge vehicles at its own premises, accounting for output tax on any private use.

Driver-home charging is usually the cheapest per mile. Domestic electricity carries the reduced 5% VAT rate, and drivers on off-peak EV tariffs can cut the unit cost further. The trade-offs: it only works for drivers with somewhere to charge, the business cannot reclaim VAT on electricity an employee buys at home, and you need a clean reimbursement mechanism (next section).

Public charging is the flexible but expensive leg. HMRC’s position, held since 2021, is that electricity supplied at public chargepoints is standard-rated at 20% VAT. The Public Charge Point Regulations 2023 at least give fleet drivers clear pence-per-kWh pricing, contactless payment on new chargepoints of 8kW and above, and a 99% average annual reliability requirement across operators’ rapid (50kW+) networks.

Reimbursing home charging: the Advisory Electric Rate

For company cars, HMRC’s Advisory Electric Rate (AER) is the simplest mechanism. From 1 June 2026 it is 7p per mile for home charging and 15p per mile for public charging, reviewed quarterly on 1 March, 1 June, 1 September and 1 December (last checked July 2026; see GOV.UK). Reimburse business mileage at or below these rates and HMRC treats it as creating no taxable profit and no Class 1A National Insurance. Drivers who use both can have their mileage apportioned between the two rates based on how much charging happens at each location — telematics or charging-app records are the natural evidence.

Be honest with drivers about the 7p figure: without an off-peak EV tariff it may not fully cover their actual home unit cost. An alternative is reimbursing the actual electricity used by the company vehicle, which HMRC accepts creates no benefit-in-kind — but it demands accurate metering, so take advice from your accountant before choosing that route. Note also that HMRC does not treat electricity as a fuel, so no fuel benefit charge arises; and for employees driving their own EVs (grey fleet), the AER doesn’t apply — mileage payments fall under AMAP instead, at 55p per mile for the first 10,000 business miles (raised from 45p in April 2026).

Depot capacity: plan the energy budget, not the charger count

The most common depot mistake is specifying chargers by headline speed. What matters is the overnight energy budget: how many kWh the fleet needs back, spread across the dwell window. With load management, total site demand can sit well below the sum of individual charger ratings — a bank of 7kW or 22kW units, charging in scheduled rotation, often turns a whole fleet around without a rapid charger on site. Every charger sold for domestic or workplace use in Great Britain since 30 June 2022 must have smart functionality by law, including configurable default off-peak charging hours, so scheduled overnight charging is the baseline, not an upgrade.

The installer you choose will assess your incoming supply and distribution board as part of the quote, and larger depots may need a conversation with the local DNO about a connection upgrade — that can take time, so start it early. You can find an installer with commercial experience through our directory or request a free quote, and our commercial charging hub covers the wider site questions.

Grants in 2026: what’s still open

Grant figures last checked July 2026 against GOV.UK.

The WCS is voucher-based: the business applies online, then an OZEV-authorised installer redeems the voucher. The per-socket amount rose from £350 to £500 for installations completed on or after 1 April 2026. Fleets running HGVs or coaches should also look up the separate Depot Charging Scheme on GOV.UK, launched in 2025 for those vehicle types. Our grants hub tracks the current schemes.

Phase the transition with telematics data

Before ordering a single vehicle, pull three things from your telematics: daily mileage distributions per vehicle (the busiest days, not the averages), dwell times at base and at drivers’ homes, and how often vehicles genuinely return to base. Vehicles whose hardest days fit comfortably within range on overnight charging make the first phase; tougher duty cycles follow once the infrastructure is proven. The ZEV mandate — 33% of new car and 24% of new van sales zero-emission in 2026 — binds manufacturers rather than fleets, but it shapes what’s available and how keen dealers are to deal. Once duty cycles are clear, compare hardware on our charger comparison pages.

Grant amounts, AER rates and tax treatments all move: the AER is reviewed quarterly, and VAT treatments can change. Check GOV.UK before committing budgets, and treat the tax points above as an explanation of the mechanism, not advice — your accountant should confirm how they apply to your business.