July Data: What to Watch When the SMMT Numbers Land

The SMMT's July registration figures land this morning, and they arrive with more baggage than usual. June delivered a record 30.0% battery electric share, the first half of the year closed at a record 25.0%, and the industry is mid-conversation about whether the mandate itself is about to be rewritten. Whatever the July numbers say, they will be read politically as well as commercially.

Before the release drops, here is a viewer's guide: the numbers that matter, the numbers that will be spun, and the one figure that actually tells you how the transition is going.

First, the health warning about July

July is a strange month to judge the car market by. It sits between the June quarter-end and the September plate change, so volumes are naturally low, and single-month percentage swings look dramatic off a small base.

This year the distortion is worse than usual, in both directions. July 2025 was unusually weak for electric cars, as some buyers held off switching while they waited for confirmation of which models would qualify for the new Electric Car Grant. New AutoMotive's independent count put July 2025 BEV registrations at 29,226 units, well below the underlying trend at the time. Any year-on-year BEV growth figure published this morning is measured against that depressed base, so treat a big percentage jump with the respect it deserves and no more.

What the early numbers say

The SMMT is the official voice, but it is not the first. New AutoMotive, the independent transport research organisation, published its preliminary July count earlier this week, and it points to another strong month.

Its figures show 43,547 new BEVs registered in July, a 27.4% share of the market, with registrations up almost 50% on July 2025 and BEVs the fastest-growing segment of an expanding market. If the SMMT's final numbers land anywhere near that, July would be the second consecutive month in which electric sales outpaced the ZEV mandate's underlying trajectory.

That last phrase needs unpacking, since it is the single most useful concept for reading today's release. The mandate's headline target is 33% for 2026, but the scheme's flexibilities, the credit trading, borrowing and CO2 conversion we explain in how ZEV mandate credit trading works, lower the effective bar. New AutoMotive puts the effective market-wide target at 24.6% once flexibilities are accounted for, against a year-to-date BEV share of 25.3%. On that reading, the market is not behind the mandate at all; it is slightly ahead of the version of the mandate that manufacturers actually have to hit.

Expect both framings to appear within an hour of the release. Both are arithmetically honest. The 33% figure is the statutory target; the effective figure is what the compliance machinery demands. Which one you privilege depends on whether you think the flexibilities are a sensible glide path or a quiet watering-down, and that is a judgement rather than a fact.

Four things to watch in the release

First, the BEV share against June's 30.0%. June was flattered by the quarter-end push, when manufacturers work hardest to move metal, so some fallback in July is expected and would not be alarming. The question is whether July lands in the high twenties, which would confirm that June was a step change rather than a spike, or drops back towards the mid-twenties, which would suggest the record month was mostly calendar effects. The half-year context matters here: 284,579 BEVs out of 1,137,929 registrations in the first six months, a 25.0% share, is the base the second half has to build on.

Second, private versus fleet. June's growth was led by private buyers for a second month running, up 12.5% against fleet's 10.5%, and that was the most encouraging signal in the data. Retail demand is the hard kind to manufacture; salary-sacrifice schemes and fleet cycles can be timed and incentivised, but private buyers only turn up when the cars and the deals genuinely appeal. A third month of private-led growth would say something real about the market's foundations.

Third, the plug-in hybrid share. PHEVs have been the quiet overachiever of 2026, growing roughly a third year on year and taking close to 15% of recent months. Watch whether that continues, since every PHEV sold is a buyer hedging their bets, and the mandate's treatment of hybrids is a live question in the reform debate.

Fourth, any revision to the outlook. The SMMT's April forecast put the 2026 market at 2.093 million registrations with a 26.8% BEV share, a figure that was itself trimmed from the previous forecast after a softer first quarter. The July outlook that accompanies today's release will be pored over for the direction of travel, and you should expect the full-year BEV share forecast to edge up if the first seven months have continued to beat expectations. The gap between whatever that forecast says and the 33% mandate line is the number that keeps manufacturer finance directors awake.

The backdrop nobody should forget

Today's numbers land in the middle of a live policy fight. The mandate is under a fast-tracked government review, with reports suggesting the year-by-year targets could be softened while the 2030 and 2035 end dates stay. The SMMT argues reform is essential to protect investment and jobs; charging companies and clean-transport groups argue the mandate is precisely what underpins their investment, and that the market over-complied in its first year. We tracked the size of that gap in The EV Mandate Gap, and the July figures will be weaponised by both sides within minutes of publication.

That is exactly why it is worth knowing what the numbers can and cannot tell you. A strong July does not prove the mandate is unnecessary, and a sub-30% share does not prove the market is failing. One month of registration data is a single frame of a long film.

What it means if you are buying

For buyers, the practical stakes are concrete. As long as manufacturers sit below the targets they care about, the discounting continues, and the last weeks of a quarter, along with the run-up to the September plate change, remain the best windows to negotiate on an electric car. The deals on slow-moving BEV models have been running well into double digits off list, on top of the Electric Car Grant's up-to-£3,750 saving on eligible models.

The next big milestone after today is the plate change itself, which we will preview properly later this month. Historically September is the year's biggest BEV month, and it is the point at which the gap to the 33% annual target either narrows convincingly or forces deeper discounting through the final quarter. We will read today's numbers properly once the full release is digested, and the September preview will build on whatever July turns out to say.