The estimated number of private sector businesses in the UK fell by 104,000 over the past year, reaching 5.6 million at the start of 2026. But the latest government figures reveal a more complicated picture: registered businesses increased, companies continued to grow, and much of the decline came from businesses operating without VAT or PAYE registration.
The Department for Business and Trade (DBT) published its Business Population Estimates on 5 November 2026. The figures show a 1.8% fall in the estimated business population compared with the start of 2025.
However, the department has attached an important warning. It cannot confidently confirm that the real number of UK businesses has fallen over the year. The estimate includes millions of unregistered businesses, whose numbers are calculated using survey data.
For business owners and policymakers, that distinction matters. The headline suggests a shrinking business population, but the underlying figures show different trends depending on the type of business.
Registered Businesses Increased Despite the Overall Fall
One of the most interesting findings is the difference between registered and unregistered businesses.
The estimated number of unregistered businesses fell by around 154,000 between the start of 2025 and the start of 2026. These are businesses that are not registered for VAT or PAYE. They include self-employed people working alone or in partnerships.
Over the same period, the number of registered businesses increased by approximately 51,000.
The change was also different across business structures. The number of sole proprietorships fell by around 137,000, while ordinary partnerships decreased by 25,000. The number of companies increased by approximately 58,000.
These figures suggest that the decline was not spread evenly across the business population. Company numbers continued to rise, while sole proprietorships and partnerships recorded falls.
The statistics do not explain why these changes happened. They also cannot show how many businesses closed or how many new ones started. They measure the net change after business openings, closures, mergers and other changes.
Businesses With Employees Are Growing
The number of businesses employing at least one person increased by approximately 54,000, or 3.8%, during the year.
There were around 1.47 million employing businesses at the start of 2026. By comparison, the number of businesses without employees fell by approximately 157,000.
The longer-term figures show a similar pattern. Since 2020, the total business population has fallen by 394,000, or 6.6%. But the number of employing businesses has increased by 59,000. Non-employing businesses have fallen by 453,000.
This is an important distinction when looking at the health of the UK business sector. The overall total has declined from its 2020 peak, but the number of businesses providing employment has moved in the opposite direction.
It does not mean the UK has lost its smaller businesses altogether. Many businesses operate without employees, and some companies have only their owners working in them.
Why the Government Says the Annual Fall Is Uncertain
The Department for Business and Trade has made clear that the latest decline is not statistically confirmed.
The estimated business population at the start of 2026 was 5,586,835. The 95% confidence interval is approximately 5.478 million to 5.695 million.
For the 2025 estimate, the equivalent range was approximately 5.567 million to 5.813 million. The two ranges overlap.
This means the department cannot confidently say that the real business population fell between the two years.
The uncertainty comes mainly from the way unregistered businesses are counted. Registered businesses are taken from the government’s administrative business register. Unregistered business numbers are estimated using Labour Force Survey data.
The survey-based figures are less certain than a direct count. Changes in the estimates can reflect real changes in business activity or sampling variation.
The publication also remains classified as official statistics in development. The department changed its status in 2024 because of concerns about the Labour Force Survey data used in the estimates.
This does not make the figures unusable. It means readers should pay attention to the confidence intervals and avoid treating a relatively small annual movement as a confirmed change.
Small Businesses Still Account for Almost the Entire Market
Despite the decline, small and medium-sized enterprises remain central to the UK economy.
The estimates put the total number of SMEs at around 5.58 million, representing approximately 99.85% of the private sector business population.
Around 5.54 million businesses have fewer than 50 employees. A further 39,220 are medium-sized businesses with between 50 and 249 employees. There are 8,355 large businesses with at least 250 employees.
SMEs employ approximately 17 million people, representing 60% of private sector employment. Their combined turnover is estimated at £2.78 trillion.
Small businesses alone account for around £1.81 trillion in turnover. Large businesses generate approximately £2.77 trillion, despite representing a much smaller share of the total business population.
The figures show why business numbers need to be considered alongside employment and turnover. A small change in the total number of businesses does not necessarily tell the whole story about economic activity.
London Remains a Major Business Centre, but Numbers Have Fallen Since 2020
London continues to have the highest business density of any UK region or country.
At the start of 2026, the capital had an estimated 1,362 private sector businesses for every 10,000 adults. The South East followed with 1,100, while the South West had 1,082.
However, London has also experienced a sizeable decline since 2020. The estimated number of businesses in the capital fell by 127,000, or 11%, over that period.
Across the UK, Yorkshire and the Humber was the only region or country where the business population increased between 2020 and 2026. Its total rose by around 9,000.
The latest annual figures also show differences between regions. The East Midlands recorded the largest numerical fall, with approximately 46,000 fewer businesses. The North West increased by 42,000, while Yorkshire and the Humber added 23,000.
These regional estimates also carry uncertainty, particularly where large numbers of unregistered businesses are involved. Businesses operating across several locations are counted in the region where they are registered, not necessarily where all their staff work.
What the Latest Figures Mean for UK Business
The latest estimates do not provide a simple picture of a business sector in decline.
The total population is below its 2020 peak, but registered businesses and companies have increased. Businesses employing staff have also grown, while the estimated number of unregistered and non-employing businesses has fallen.
For policymakers, the figures raise questions about self-employment, business formation and the conditions facing smaller operators. But the statistics alone cannot identify the reasons behind the changes.
The next annual release will help show whether the pattern continues. For now, the clearest finding is that the structure of the UK’s business population is changing, even as the overall annual decline remains uncertain.
Source: Department for Business and Trade, Business Population Estimates for the UK and Regions 2026, published 5 November 2026. The estimates are classified as official statistics in development. Figures for unregistered businesses are based on survey estimates and are subject to uncertainty.
