UK Business Population and SME Structure Statistics 2026
Almost every UK private sector business is an SME, and most of them have no employees at all. This page sets out the official business population figures by size, employment, turnover and nation, and explains why the shape of the population matters when judging who can use invoice finance and how large the market could be.
Key statistics
Private sector businesses in the UK at the start of 2025. Source: Department for Business and Trade (GOV.UK)
Exact count of UK private sector businesses at the start of 2025. Source: Department for Business and Trade (GOV.UK)
UK SMEs (0 to 249 employees) at the start of 2025. Source: Department for Business and Trade (GOV.UK)
SMEs as a share of the UK private sector business population, start of 2025. Source: Department for Business and Trade (GOV.UK)
UK private sector businesses with employees, start of 2025. Source: Department for Business and Trade (GOV.UK)
UK private sector businesses with no employees, start of 2025. Source: Department for Business and Trade (GOV.UK)
Small businesses (0 to 49 employees), start of 2025. Source: Department for Business and Trade (GOV.UK)
Medium-sized businesses (50 to 249 employees), start of 2025. Source: Department for Business and Trade (GOV.UK)
Large businesses (250 or more employees), start of 2025. Source: Department for Business and Trade (GOV.UK)
Increase in the private sector business population between 2024 and 2025. Source: Department for Business and Trade (GOV.UK)
Annual turnover of micro businesses, start of 2025. Source: Department for Business and Trade (GOV.UK)
Annual turnover of small businesses (10 to 49 employees), start of 2025. Source: Department for Business and Trade (GOV.UK)
Annual turnover of medium-sized businesses, start of 2025. Source: Department for Business and Trade (GOV.UK)
People employed by small businesses (10 to 49 employees), start of 2025. Source: Department for Business and Trade (GOV.UK)
People employed by medium-sized businesses, start of 2025. Source: Department for Business and Trade (GOV.UK)
People employed by large businesses, start of 2025. Source: Department for Business and Trade (GOV.UK)
Private sector businesses in Scotland, start of 2025. Source: Department for Business and Trade (GOV.UK)
| Metric | Value | Source |
|---|---|---|
| Private sector businesses in the UK at the start of 2025 | 5.7 million | Department for Business and Trade (GOV.UK) |
| Exact count of UK private sector businesses at the start of 2025 | 5,690,265 | Department for Business and Trade (GOV.UK) |
| UK SMEs (0 to 249 employees) at the start of 2025 | 5,681,930 | Department for Business and Trade (GOV.UK) |
| SMEs as a share of the UK private sector business population, start of 2025 | 99.85% | Department for Business and Trade (GOV.UK) |
| UK private sector businesses with employees, start of 2025 | 1.4 million (25%) | Department for Business and Trade (GOV.UK) |
| UK private sector businesses with no employees, start of 2025 | 4.3 million (75%) | Department for Business and Trade (GOV.UK) |
| Small businesses (0 to 49 employees), start of 2025 | 5.64 million | Department for Business and Trade (GOV.UK) |
| Medium-sized businesses (50 to 249 employees), start of 2025 | 38,435 | Department for Business and Trade (GOV.UK) |
| Large businesses (250 or more employees), start of 2025 | 8,335 | Department for Business and Trade (GOV.UK) |
| Increase in the private sector business population between 2024 and 2025 | 3.5% (191,000 businesses) | Department for Business and Trade (GOV.UK) |
| Annual turnover of micro businesses, start of 2025 | £701.248 billion | Department for Business and Trade (GOV.UK) |
| Annual turnover of small businesses (10 to 49 employees), start of 2025 | £776.163 billion | Department for Business and Trade (GOV.UK) |
| Annual turnover of medium-sized businesses, start of 2025 | £948.639 billion | Department for Business and Trade (GOV.UK) |
| People employed by small businesses (10 to 49 employees), start of 2025 | 4.324 million | Department for Business and Trade (GOV.UK) |
| People employed by medium-sized businesses, start of 2025 | 3.738 million | Department for Business and Trade (GOV.UK) |
| People employed by large businesses, start of 2025 | 11.246 million | Department for Business and Trade (GOV.UK) |
| Private sector businesses in Scotland, start of 2025 | 361,000 | Department for Business and Trade (GOV.UK) |
Source: Department for Business and Trade (GOV.UK)
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### UK Business Population and SME Structure Statistics 2026: key figures | Metric | Value | Source | | --- | --- | --- | | Private sector businesses in the UK at the start of 2025 | 5.7 million | Department for Business and Trade (GOV.UK) | | Exact count of UK private sector businesses at the start of 2025 | 5,690,265 | Department for Business and Trade (GOV.UK) | | UK SMEs (0 to 249 employees) at the start of 2025 | 5,681,930 | Department for Business and Trade (GOV.UK) | | SMEs as a share of the UK private sector business population, start of 2025 | 99.85% | Department for Business and Trade (GOV.UK) | | UK private sector businesses with employees, start of 2025 | 1.4 million (25%) | Department for Business and Trade (GOV.UK) | | UK private sector businesses with no employees, start of 2025 | 4.3 million (75%) | Department for Business and Trade (GOV.UK) | | Small businesses (0 to 49 employees), start of 2025 | 5.64 million | Department for Business and Trade (GOV.UK) | | Medium-sized businesses (50 to 249 employees), start of 2025 | 38,435 | Department for Business and Trade (GOV.UK) | | Large businesses (250 or more employees), start of 2025 | 8,335 | Department for Business and Trade (GOV.UK) | | Increase in the private sector business population between 2024 and 2025 | 3.5% (191,000 businesses) | Department for Business and Trade (GOV.UK) | | Annual turnover of micro businesses, start of 2025 | £701.248 billion | Department for Business and Trade (GOV.UK) | | Annual turnover of small businesses (10 to 49 employees), start of 2025 | £776.163 billion | Department for Business and Trade (GOV.UK) | | Annual turnover of medium-sized businesses, start of 2025 | £948.639 billion | Department for Business and Trade (GOV.UK) | | People employed by small businesses (10 to 49 employees), start of 2025 | 4.324 million | Department for Business and Trade (GOV.UK) | | People employed by medium-sized businesses, start of 2025 | 3.738 million | Department for Business and Trade (GOV.UK) | | People employed by large businesses, start of 2025 | 11.246 million | Department for Business and Trade (GOV.UK) | | Private sector businesses in Scotland, start of 2025 | 361,000 | Department for Business and Trade (GOV.UK) | Source: Department for Business and Trade (GOV.UK)
“These figures count registered and tax-active businesses by employee size, not by whether they sell on credit terms to other businesses, so they say nothing directly about how many firms could actually use invoice finance. Turnover and employment bands are also estimates drawn from administrative and survey sources, and the no-employee group includes many owner-run businesses that will never need a receivables facility.”
What the numbers mean
The Department for Business and Trade business population estimates show a market dominated by very small firms: 75% of private sector businesses had no employees at the start of 2025. Many of these are sole traders or single-director companies. Few sell on credit terms to other businesses in volumes that suit a facility, so the group that can realistically use invoice finance is much smaller than the headline business count suggests.
The part of the population that matters most for invoice finance is the one that employs people and invoices other businesses on credit. According to the same release, 1.4 million businesses had employees. Within that group, small and medium-sized firms account for most of the jobs outside the largest employers, and they are the businesses most likely to carry a large share of working capital in unpaid sales invoices.
Turnover tells a similar story. The official turnover figures put medium-sized businesses at £948.639 billion, which is more than the small and micro bands individually. A relatively small number of medium-sized firms therefore generate a very large volume of invoices, which is why lenders often focus on them first.
For an owner or finance director, the practical point is to identify which size band you sit in. A business with a handful of customers and steady monthly invoicing has different options from one with seasonal, one-off or consumer sales. Provider minimum turnover and minimum invoice volume requirements, which you should check on each provider's own website, tend to follow these size divisions closely.
FAQs
How many UK businesses are SMEs?
Almost all of them. Official business population estimates from the Department for Business and Trade show that SMEs make up virtually the whole of the UK private sector, with large businesses a very small fraction of the total.
Why does the number of businesses with no employees matter for invoice finance?
Most UK businesses have no employees, and many of them are sole traders or single-director companies with modest or irregular invoicing. That means the realistic market for invoice finance is a much smaller subset of the headline business count.
Which size of business is most likely to use invoice finance?
Typically small and medium-sized firms that employ staff, invoice other businesses on credit terms and have steady invoice volumes. Each provider sets its own minimum turnover and invoice volume, so check their websites for current requirements.
Do these statistics show how many firms use invoice finance?
No. The business population estimates measure how many businesses exist by size and region, not what finance they use. Usage data comes from other sources such as UK Finance and the Asset Based Finance Association.
How often are the UK business population figures updated?
The Department for Business and Trade publishes them annually, with each release describing the position at the start of the year. Check the GOV.UK statistics page for the latest edition before relying on a figure.
Founder & Managing Director, Muswell Rose, founder and PSC of Best Business Loans Ltd
Adam is the founder and managing director of Muswell Rose and a founder of Best Business Loans Ltd, the company behind Market Invoice. He spent over three years as managing director of Penny, a UK invoice finance business, and his career runs through insurance, mortgages, commercial finance and fintech lending. He writes the Market Invoice library.
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