September Plate Change 2026: Rising Demand, 10.5% Discounts And A Fight For Every New Car Buyer

The September plate change has always given UK dealerships a reason to get busy. This year, buyers seem to be getting started early.

Auto Trader data for August shows visits to its new car platform are already 9% higher than July and 2% ahead of last year. At the same time, the number of new cars being advertised has risen 18% year on year.

There is clearly demand around. There is also plenty of stock competing for it.

That competition is showing up in the price. The average discount on a new car has reached 10.5% of RRP, compared with 9.8% at the same point last year.

For dealers, September 2026 could bring strong volumes. The harder job will be converting that demand while keeping enough value in each deal.

How Strong Is New Car Demand Ahead Of The September Plate Change?

The wider market gives dealers some reason for confidence.

July brought 156,571 new car registrations, an 11.7% increase year on year and the strongest July since 2019. Private registrations grew even faster, rising 12.6%.

Across the first seven months of 2026, the UK registered almost 1.3 million new cars, 9.5% more than during the same period in 2025.

August's online behaviour suggests customers are now turning their attention towards September and the new 76 plate.

Auto Trader reports three movements happening at once: website visits are up, advertised stock is up and discounts are getting larger.

That creates a fairly simple September equation. There are more active buyers, but there are also more cars and offers competing for them.

As we covered in our guide to what dealers need to plan for in 2026, having demand in the market only gets you so far. Dealers still need the right stock, price, response time and finance journey to turn interest into registrations.

New Car Discounts Have Reached 10.5%

The size of the discount is probably the figure dealership leaders should pay closest attention to.

Average new car discounts have risen to 10.5%, up from 9.8% a year earlier. EV discounts currently average 11.2%.

A 0.7 percentage point movement might look fairly small on paper. Apply it to thousands of cars and the commercial impact starts adding up quickly.

It also changes customer expectations.

Someone researching a new car before visiting the dealership can now see substantial offers across several manufacturers. The first price they see becomes the reference point for the next one.

Discounting can therefore create demand while making that demand harder to monetise.

Marsh has explored this issue before in our article on how new car discounting affects used values, part-exchange calculations and residuals. The pressure rarely stays within the new car department. It can work its way through the whole dealership.

September Could Be A Big Month For Dealers

September has a few things working in its favour.

There is the 76 plate itself, which still gives customers a clear reason to time a purchase. There is greater stock availability. Manufacturers are supporting cars with stronger offers, and the wider new car market entered August with eight consecutive months of growth.

SMMT has now raised its 2026 forecast to 2.183 million new car registrations, which would represent growth of around 8% on 2025.

The September plate change should be one of the biggest tests of that forecast.

The interesting part for dealers will be where the growth comes from.

Private demand increased 12.6% in July, although fleet still accounted for almost 60% of registrations. Stronger private demand during September would give retailers a useful indication of how much underlying consumer appetite sits behind this year's market growth.

Buyers Have More Brands Fighting For Their Attention

September's competition goes beyond price.

Chinese manufacturers are taking an increasingly visible share of new car enquiries.

Four of Auto Trader's ten most-enquired-about new cars during August came from Chinese manufacturers. The MG S9 led the entire market with 4.1% of new car leads, while the Jaecoo 7, Chery Tiggo 8 and Jaecoo 5 all appeared in the top ten.

MG also attracted 9.1% of all brand-level enquiries, putting it second only to BMW at 10.2%.

That matters for established dealer groups.

Customers have more brands to compare and some newer entrants are competing aggressively on specification, price and finance.

For a dealership salesperson, the customer walking through the door may now have a shortlist that looks very different from one they would have brought in three years ago.

The 10.5% Discount Creates A Margin Question

Selling more cars is useful. Selling more cars with shrinking front-end margin needs a wider commercial plan.

We've already looked at whether record new car discounting is turning the new car into a strategic loss leader. At 10.5%, the question becomes even more relevant.

Dealers need to know what the full customer relationship is worth.

That includes the initial vehicle margin, finance income where applicable, part exchange, servicing, MOTs, future retention and the used car that could eventually return to the group.

A customer acquired through a competitive September offer could stay with a dealership for years. That makes retention important. It also means cutting another few hundred pounds from a car purely to win today's registration can be a fairly expensive habit if there is no plan for what happens next.

"September volume needs to be looked at alongside the value of the whole customer relationship," says Andrew Marsh, CEO of Marsh Finance. "When discounts are already above 10%, dealers have less room to solve every objection by taking more money off the car. Finance, part exchange, service and retention all become more important."

Finance Can Help Dealers Compete Without Reaching For Another Discount

A customer can like the car and still hesitate at the monthly payment.

That becomes particularly important when people are comparing several heavily promoted models.

Dealers should therefore look at both numbers: the vehicle price and the monthly cost.

A well-structured finance offer can sometimes close the affordability gap without another reduction in the vehicle price.

PCP can work particularly well on suitable younger vehicles because the deferred final payment can reduce monthly repayments compared with financing the full vehicle cost through HP. HP may suit customers who want a simpler route towards ownership.

Near-prime customers deserve attention here too. A customer with a small credit issue in their history can still have a stable income and a perfectly reasonable budget. Losing that buyer after spending heavily to generate the enquiry makes little commercial sense if an appropriate lending route exists.

Marsh Finance works with dealer partners across HP and PCP, including customers outside the traditional prime lending profile.

Dealers Should Watch Part-Exchange Values Closely

There is another side to aggressive new car discounting.

Part exchanges.

Imagine a nearly-new vehicle sitting on your forecourt at £27,000. A manufacturer then adds enough support to bring the equivalent new model much closer to that price.

Your used car has a problem.

The customer looking to part-exchange a one or two-year-old vehicle can face the same issue. Its valuation has to reflect the retail market it will enter, regardless of what the customer originally paid.

This is where September discounts can create uncomfortable appraisal conversations.

Dealers should keep a particularly close eye on nearly-new stock where a heavily discounted new equivalent sits nearby. The gap between the two needs to make sense to the buyer.

Regular valuation reviews matter during periods of heavy manufacturer activity. A price that worked at the beginning of August may look very different by the middle of September.

EV Discounts Are Still Higher, But The Gap Is Narrowing

EVs remain the most heavily discounted fuel type, although the difference is now surprisingly small.

Average EV discounts currently sit at 11.2%, compared with 10.5% across the whole new car market.

The bigger story is demand.

Battery electric registrations jumped 44.5% year on year in July, reaching 43,106 cars and taking 27.5% of the month's market. Plug-in hybrid registrations rose 33.6%.

Heavy incentives and government support are helping. SMMT still expects BEVs to account for only 27.4% of 2026 registrations, below the 33% ZEV mandate target for the year.

Manufacturers therefore have plenty of reason to keep pushing.

Dealers carrying EV stock should expect pricing and incentives to remain fluid through the plate-change period.

What Should Dealers Do Before September?

There are a few practical areas worth reviewing now.

First, check every nearly-new vehicle against the current discounted price of its new equivalent. Manufacturer support can move quickly and customers can find these deals in seconds.

Second, make finance visible. A customer researching the 76 plate online should be able to understand the likely monthly commitment without having to work for it.

Third, prepare the sales team for wider brand comparisons. A customer asking about a Golf may also have looked at an MG, Jaecoo or Chery. Product knowledge now needs to extend beyond the brands sitting above your showroom door.

Finally, get serious about response times. Auto Trader traffic is already up 9% month-on-month. A busy September means more enquiries, and more enquiries mean very little if somebody else replies first.

September Is About More Than Registrations

The current numbers point towards a busy plate change.

New car demand is rising. July registrations were up 11.7%. August Auto Trader traffic is up 9% month-on-month. Stock advertised online is 18% higher than last year. Average discounts have reached 10.5%.

There should be plenty to work with.

The commercial challenge is converting that activity without letting discounting do all the work.

Dealers that understand their margin, react quickly to pricing changes, make finance easy to understand and retain the customers they win in September will get more value from the plate change than a registration number alone can show.

Partner With Marsh Finance

A competitive September needs finance options that can keep pace with the market.

Marsh Finance supports UK dealers with HP and PCP solutions, near-prime lending and fast lending decisions, helping partners convert more suitable customers while keeping affordability and customer outcomes in view.

If you're reviewing your lender panel ahead of a busy plate-change period, partner with Marsh Finance.