How the UK ZEV mandate is reshaping the new-car market

The UK Zero-Emission Vehicle (ZEV) mandate asks for 33% of new passenger-car sales to be zero-emission in 2026, after 22% in 2024 and 28% in 2025, on a path to 80% by 2030. Manufacturers that miss the target and run out of flexibilities pay £12,000 per car short, cut from £15,000 in the government's April 2025 revision (UK Government response). From January to September 2026 the market reached 26.2% battery-electric, on 454,945 BEVs out of 1,739,253 cars, on SMMT's preliminary figures (SMMT, 2 October 2026). The gap is about seven points, and so far it is being closed mainly with manufacturer-funded discounting and flexibilities rather than with buyers alone.

UK ZEV trajectory and market response

Year	ZEV target	Actual BEV share	Outcome
2024	22.0%	19.6%	Below target, credits and flexibilities used
2025	28.0%	23.43%	Below target, 473,348 BEVs of 2,020,520 cars
2026 YTD (Jan to Sep, preliminary)	33.0%	26.2%	454,945 BEVs of 1,739,253 cars
2026 full year	33.0%	27.4% outlook	Industry outlook published with July data, on a 2.18m market
2027	38.0%	not yet	Step-up continues
2030	80.0%	not yet	Final step of the current schedule

Three market effects of the mandate

1. Manufacturer-funded discounting. Brands short of the target cut BEV prices rather than pay the fine. SMMT's April 2026 release refers to billions in manufacturer discounts supporting BEV registrations, alongside the government's Electric Car Grant. In effect, part of the cost of each BEV sale is carried by the rest of the manufacturer's range.

2. Pressure on combustion volumes. Because every car sold above a manufacturer's allowance counts against it, the mandate gives brands a reason to manage how many petrol and diesel cars they supply to the UK, not only how many BEVs they sell.

3. Compliance trading. The flexibilities let manufacturers borrow against future years, transfer credits between each other and convert CO2 over-achievement into ZEV credits. Brands with a strong BEV mix can sell credits to those with a weak one, which has created a UK-specific market for compliance between carmakers.

Where 2026 actually stands

September 2026, the second plate-change month, set a record BEV volume of 99,199 units, a 28.3% share, up 36.3% year on year in a market that grew 12.1% to 350,518 cars, on SMMT's preliminary figures. Year to date the BEV share is 26.2%, which SMMT notes is below both the 33% required for 2026 and last year's 28%. On SMMT's numbers, reaching 33% on a 2.183 million market would need about 265,000 more BEV registrations in the final quarter alone. July's full release has the earlier detail: 43,106 BEVs and a 27.5% share in a market of 156,571 (SMMT, 5 August 2026). Our July 2026 UK registrations breakdown has the full powertrain table.

Source & methodology

Sales data from SMMT monthly car registration releases, including the preliminary September 2026 release of 2 October 2026 (final figures due 5 October). The 2025 outturn of 473,348 BEVs and 23.43% share matches SMMT's full-year 2025 release. ZEV mandate parameters (22% in 2024, 28% in 2025, 33% in 2026, 38% in 2027, 80% in 2030) and the fine level are the UK Department for Transport schedule. The full BEV trend chart and brand-level BEV mix sit on the UK dashboard.