How the UK ZEV mandate is reshaping the new-car market
The UK Zero-Emission Vehicle (ZEV) mandate required 22% of all new passenger-car sales to be zero-emission in 2025, rising to 28% in 2026 and 80% by 2030. The mechanism: manufacturers that miss the target pay £15,000 per non-compliant ICE car sold above the cap. The result has been roughly £3,000-£5,000 of per-BEV manufacturer discounting throughout 2025 — effectively a manufacturer-funded subsidy that has kept UK BEV share growing without taxpayer money.
UK ZEV trajectory and market response
| Year | ZEV target | Actual BEV share | Outcome |
|---|---|---|---|
| 2024 | 22.0% | 19.6% | Below target — credits used + minor fines |
| 2025 | 22.0% (revised down) | 22.0% | On target — heavy discounting Q3-Q4 |
| 2026 | 28.0% | TBD | Forecast 25-26% — gap closing slowly |
| 2030 | 80.0% | — | Requires 12-pp/yr step-up from 2027 onward |
Three market effects of the mandate
1. Manufacturer-funded discounting. Brands missing the target absorb the £15,000 fine via per-BEV price reductions. The 2025 H2 saw Vauxhall, Citroen, Peugeot, MG, BYD and Hyundai all running £3,000-£5,000 BEV discounts that did not apply to ICE versions of the same model. Effectively the ICE buyer cross-subsidises the BEV buyer.
2. ICE volume cap. Manufacturers limit how many ICE cars they will allocate to UK dealers because each one sold above the cap costs £15,000 (later £15,000-£18,000) in fines. UK ICE buyers in 2025 reported 4-6 month wait times for popular ICE trim levels — not because of supply, but because the manufacturer is rationing UK allocation.
3. Brand strategy bifurcation. Brands without competitive BEVs (Toyota, Honda, Suzuki) have been forced to either buy compliance credits from BEV-heavy brands or accept fines. Brands with strong BEV mix (BYD, Tesla, Polestar, Hyundai) sell credits at a profit. The mandate has created a UK-specific OEM-to-OEM trading market for compliance.
What 2026 looks like
The 28% 2026 target requires either an additional 2-3 pp of BEV-share growth or another year of credit trading. Manufacturers are pushing for a target softening; the government has so far held the line. Expect continued aggressive BEV pricing through 2026 as manufacturers compete for the marginal buyer.
Source & methodology
Sales data from SMMT monthly car registration releases. ZEV mandate parameters from the UK Department for Transport ZEV mandate consultation responses (2023-2025). The full BEV trend chart and brand-level BEV mix sit on the UK dashboard.