UK Cars
The EV Mandate Gap: How Far the UK Electric Car Market Is From Its Own Target
The ZEV mandate asks for 33% of new cars to be electric by the end of 2026. The latest SMMT registrations show how close the market is to the line.
The government gave the car market a number to hit. By the end of 2026, battery electric cars should account for 33% of new registrations under the ZEV Mandate, rising to 38% in 2027. The mandate is the single clearest line on the map of where this country wants its roads going, and it gives everyone a shared yardstick. The question each month is simple: how far away from that line are we actually standing?
A record month, still short of the line
The June figure is worth pausing over. Battery electric cars reached a 30.0% share of new car registrations in June 2026, the highest monthly BEV share on record, and more than one in three new cars was fully electric. That is not a rounding error away from the mandate threshold; it is the market arriving at the conversation rather than being pushed into it.
Step back to the year to date and the picture is steadier but honest. The SMMT's own registration data shows 327,683 battery electric cars registered between January and July 2026, up 28.7% on the same period last year. That gives BEVs a 25.31% share of all new car registrations, against 21.54% in July 2025. Against the 33% mandate line for the year, the market is sitting roughly 7.7 percentage points short through July.
The monthly total tells the same story from another angle. In July alone, 156,571 cars were sold, up 11.7% on last year, with BEVs taking a 27.5% share of that month (43,106 units). The whole market is growing at a 9.5% clip year to date, so this is not a shrinking pie being sliced differently; it is a growing pie where electric is the fastest-rising slice.
What the industry itself expects
The SMMT's July 2026 New Car and Van Outlook is the body's own forecast, and it revised its full-year BEV share up to 27.4% from the 26.8% it guided in April, following a stronger-than-expected first half. On that number the market would finish 2026 roughly 5.6 percentage points short of the mandate target, with about 597,000 BEV registrations against a total market expected to reach 2,183,000 units.
The next step is where it gets interesting. The SMMT projects BEVs reaching a 32.1% share in 2027, against the mandate's 38% line for that year. In other words, the market is on track to close most of this year's gap and then open a fresh one next year. The mandate is not a wall the market will bump into; it is a moving target the industry keeps having to chase.
Why the gap exists, in plain terms
The shortfall is not a single cause. It is a set of them, and each one is visible in the data. Petrol cars still hold a 40.1% share of July registrations against BEVs' 27.5%, so the bulk of the market remains combustion. The used market tells a quieter story: used BEV transactions hit a record 110,761 units in Q2 2026, up 67% on a year earlier and a record 5.5% share of second-hand sales, up from 3.3%. The used market is where the mandate's effects are felt by ordinary buyers first, because it is where people actually transact.
The Electric Car Grant is doing real work in the background. It has taken £1,500 or £3,750 off the price of eligible new models since launching in July 2025, and the qualifying list keeps growing. That is part of why the forecast was revised up: the policy is being felt by buyers, not just announced at them.
The honest read
The mandate gap is a measure of ambition versus behaviour, and right now behaviour is winning on the pace but losing on the headline number. A 25.3% year-to-date share with a 27.4% full-year forecast means the market will finish the year well clear of the 33% line, and a 32.1% 2027 projection means the gap reopens next year even as it narrows this one. Nobody should be alarmed by that; the direction is unambiguous and the record June month proves the momentum is real. What the numbers do say is that the UK electric car market has stopped being a question of whether and started being a question of how fast, and the mandate gives everyone a shared number to watch it against.