The UK has assembled Europe’s most aggressive demand-side package for electric trucks, and it is deliberately front-loaded. Understanding the calendar is the whole game.

The grant stack. The Plug-in Truck Grant’s January 2026 top-up (£18 million, caps to £120,000 for the largest artics) expired on 31 March; from April 2026 the structure steps down to £15,000 (4.25–12t), £37,000 (12–18t), £52,000 (18–26t) and £81,000 (>26t), still covering up to 40% of the purchase price, with per-customer caps of 100 trucks per year from FY2026/27. Alongside it, the Depot Charging Scheme funds up to 70% of infrastructure costs to £1 million per site, within a £1 billion March 2026 package. Few European markets pay both sides of the equation — vehicle and infrastructure — at this scale.

The regulatory horizon. January also opened consultation on ending sales of new non-zero-emission HGVs: phase-out options for up-to-26t vehicles by 2035 and all new diesel HGV sales by 2040, with the framework expected to crystallise through 2026–27. The signal to residual-value planners is unambiguous: diesel trucks bought late this decade will age into a legislated sunset. Meanwhile the ZEHID demonstrator has put close to 300 zero-emission HGVs into named UK fleets (Amazon, M&S among them), building the evidence base and the future used-market supply.

Why the swap pioneers chose Britain. The CATL–Octopus Swaptopus venture targets its first UK super-hubs from 2027 — attracted by exactly this stack: purchase grants that de-risk vehicle volume, depot charging money that builds the energy layer, and high-utilisation trunk routes where swap’s minutes-not-hours advantage earns. Fleets on M1/M6-type corridors should model both charging and swap against 2027–2028 commissioning.

WattTonne’s read. UK operators: 2026/27 is the last full-generosity year — order vehicles and file depot charging applications together, and treat the £81,000 as the peak of a declining curve. Continental fleets: watch UK residual values from 2029 — the grant-built parc becomes Europe’s first real used e-truck supply.