Every business weighing up an electric fleet asks the same question first: what’s this going to cost us? It’s the right question, but it’s usually the wrong starting point. The businesses pulling ahead on fleet electrification right now aren’t the ones with the biggest budgets. They’re the ones who’ve worked out how to time their investment against a funding landscape that’s shifting fast, and shrinking.
Why the timing matters more than the total spend
2026 is not a normal year for EV fleet funding. Several major schemes are either winding down or about to change shape entirely. The SME infrastructure grant closes at the end of March 2026. The Workplace Charging Scheme, which covers up to £500 per charging socket from April, is being called its final year by OZEV. Meanwhile, new money is coming in behind it: a £1 billion government package for fleet electrification and depot charging, plus the Zero Emission Truck and Van Grant offering up to £81,000 off heavy-duty electric trucks and £5,000 off large electric vans.
The upshot is that the cost of going electric right now depends heavily on which side of these deadlines a business lands on. Apply for the workplace charging voucher before April and redeem it by September, and a ten-socket installation keeps the old, higher rate, a saving of around £5,000 compared with waiting a few months. That’s not a rounding error for a mid-sized fleet operator; it’s the difference between a project that pencils out this year and one that gets pushed to next.
Where the money actually goes
Fleet electrification costs split into three buckets, and businesses tend to underestimate the second one.
Vehicles. This is the obvious cost, and it’s the one most businesses have already modelled. Electric vans and trucks still carry a purchase premium over diesel, though it’s narrowing, and grants are chipping away at it further, cutting up to 40% off the purchase price of heavy-duty electric trucks under current schemes.
Depot charging infrastructure. This is where fleet electrification is genuinely won or lost, and where the real planning needs to happen. Public charging works for occasional top-ups, but a fleet that depends on it will bleed money in downtime and unpredictable costs. Depot charging, where vehicles plug in overnight or during scheduled downtime, is what gives an operator cost predictability and the ability to scale. According to ElectrAssure, this costs £1,000–£1,500 +VAT per charge point on average, though the full range stretches from £2,000 into six figures depending on charger speed, site complexity, and any grid reinforcement needed. The Depot Charging Scheme currently covers up to 75% of installation costs, up to £1 million per organisation, which materially changes the maths for businesses who’d otherwise have shelved this as too capital-intensive.
Tax position. Benefit-in-Kind rates on electric company cars sit at 3% for 2025/26, rising only gradually, to around 4% in 2026/27 and capping at 9% by the end of the decade. Compare that with 20-37% on petrol and diesel equivalents, and the tax differential alone often justifies switching company cars ahead of the heavier commercial vehicles.
The case for moving now rather than waiting
There’s a reasonable instinct to wait for EV costs to keep falling before committing. But two things are working against that logic. First, several of the most generous grants are explicitly time-limited or drop in value on a fixed date, so waiting doesn’t get you a better deal, it gets you a worse one. Second, the UK’s electric fleet is forecast to grow substantially by the end of the decade, and the businesses building depot charging capacity now are the ones who’ll have infrastructure that scales with them, rather than a bottleneck they have to solve twice.
There’s also a competitive angle that’s easy to miss in a straight cost comparison. Businesses that electrify ahead of the Zero Emission Vehicle Mandate deadlines, which require an increasing share of new sales to be zero-emission through to 2035, aren’t just avoiding future compliance costs. They’re positioning themselves with clients and partners who increasingly factor emissions credentials into who they work with.
What this means practically
For a business sizing up EV fleet investment, the sensible approach isn’t to wait for a single “right moment.” It’s to separate the decision into pieces that move on different timelines: vehicle procurement, which can flex around grant deadlines and lead times; depot infrastructure, which needs early planning because installation windows and funding pots close fast; and the tax and compliance side, which rewards early movers disproportionately because the gap between EV and combustion rates is at its widest right now and will narrow over time.
The businesses getting ahead aren’t necessarily spending more. They’re spending at the right moment, against the right scheme, for the right part of the fleet, treating the current funding environment as a limited window rather than a permanent backdrop.
