Last Updated on July 10, 2026
There are 4.57 million self-employed people in the UK. Almost none of them appear on Companies House. Most marketing advice ignores them entirely.
This report pulls together the official numbers on Britain’s sole trader economy: who they are, where they work, and the two tax changes that hit them in 2026.
The headline numbers
- 4.57 million self-employed workers in the UK as of Q1 2026 (ONS Labour Force Survey)
- That is down from a peak of over 5 million at the end of 2019. Self-employment fell sharply after the pandemic and has never fully recovered
- Roughly 2.8 million men and 1.5 million women work for themselves
- Of the UK’s 5.7 million private sector businesses, 4.3 million (75%) employ nobody but the owner (Business Population Estimates 2025)
- Around 3.0 million businesses (54%) trade without VAT or PAYE registration, meaning they are invisible on every official register
Where the self-employed actually work
Construction is the sole trader capital of Britain, with around 748,000 self-employed workers as of Q4 2025, the most of any industry. Professional, scientific and technical work comes second at roughly 551,000.
This matches what we keep finding in our trades research: when we checked 173 AI-recommended roofers against Companies House, 36% had no register match at all. That is not because they are fake. It is because sole traders do not register companies. The trades run on self-employment, and self-employment runs off the record.
The side hustle layer on top
Official self-employment counts miss a growing second layer. Industry surveys in 2025 and 2026 consistently put the share of UK adults with some form of side income at around 4 in 10, with typical reported earnings of roughly £200 a week. Treat the precise figures with caution, as they come from commercial surveys rather than the ONS. The direction of travel is not in doubt.
HMRC clearly believes it. Since 2024, and tightened again in April 2026, every digital platform operating in the UK must report what sellers earn directly to the taxman. If you earn more than £1,000 from side income, you may need to register for Self Assessment. The days of the invisible side hustle are ending.
Making Tax Digital: the 2026 change most sole traders have not planned for
From 6 April 2026, Making Tax Digital for Income Tax applies to sole traders and landlords with qualifying income over £50,000. That means digital records, MTD-compatible software and quarterly updates to HMRC instead of one annual return.
The threshold drops to £30,000 in April 2027 and £20,000 in April 2028. Within two years, the majority of full-time sole traders will be filing quarterly.
If you are a sole trader above the threshold and still keeping records in a notebook or a spreadsheet, this is the year that stops being an option.
What this means for your business
First, if you sell to sole traders, they are a bigger market than most firms realise: three quarters of all UK businesses. They buy differently, they have no procurement process, and they Google everything.
Second, if you are a sole trader, your invisibility is now a commercial problem, not just an administrative fact. AI recommendation engines reward businesses that can be verified: a consistent name, a real address, live profiles on the platforms the AI reads. The register-shaped hole where your business should be is visible to every AI that looks.
Third, the MTD deadline is a forcing moment. Sole traders will be choosing software in the next year. If that is your market, be there before April.
Sources and method
Self-employment counts: ONS Labour Force Survey, Q1 2026, via ONS time series and Statista. Industry breakdown: ONS EMP14, Q4 2025. Business population: Business Population Estimates 2025. MTD dates and thresholds: HMRC guidance. Side hustle figures: commercial surveys including UK Tax Calculators and StandOut CV, 2025 to 2026, flagged as indicative. Figures are the latest published as of 10 July 2026.
Related: UK Business Statistics 2026 and UK Marketing Budget Benchmarks 2026.
