35% of UK self-employed workers, the large majority of whom trade as sole traders rather than through a limited company, were not paid on time by a client in the last 12 months, according to IPSE’s 2024 late payment research. A sole trader carries every part of a business alone, including the part where a client sits on an invoice, so the numbers behind that 35% figure matter more here than almost anywhere else in the small business economy. This roundup pulls together the newest sourced data on how many sole traders there are, how often they get paid late, and what it actually costs them.
How Many Sole Traders Are There in 2026?
Tens of millions, across just three countries. In the United States, 31.0 million individual income tax returns reported nonfarm sole proprietorship activity for tax year 2022, according to the IRS Statistics of Income Bulletin published in Spring 2025, generating $2,080 billion in business receipts and $410.7 billion in profit. That profit margin, 19.7% of receipts, was the lowest it had been since 1990, a sign that costs are eating a growing share of what sole proprietors bring in even as their numbers keep climbing.
Figure 1: Sole trader population, United States vs Australia. Source: IRS Statistics of Income Bulletin, Spring 2025 (US, tax year 2022); Australian Small Business and Family Enterprise Ombudsman, January 2026 (Australia, 2021-22).
Australia’s sole trader population is smaller in absolute terms but growing fast: 1,696,521 sole traders in 2021-22, up from 1,405,735 in 2017-18, a gain of 290,786 in five years, according to a January 2026 ASBFEO analysis of ABS administrative data. The UK’s self-employed population, where most sole traders live, is moving the opposite direction. Self-employment fell by 201,000 workers, 4.7%, over the year to the quarter ending September 2025, according to the Office for National Statistics’ December 2025 Labour Market Overview. Fewer sole traders overall makes each one’s exposure to a single late-paying client proportionally larger, not smaller.
How Often Do Sole Traders Get Paid Late?
Often enough that it reads as routine rather than exceptional. 35% of UK self-employed workers report they were not paid on time by a client in the last 12 months, and 54% say they have experienced a payment delay at some point in their self-employed career, according to IPSE’s late payment tracking. For the group affected in the past year, the delay is frequently severe: 28% wait between one and three months past the agreed deadline, and 18% wait more than three months.
Figure 2: Share of UK self-employed not paid on time in the past 12 months. Source: IPSE, Late Payment within the Self-Employed Sector, 2024.
A three-month wait is not an abstract inconvenience for someone running a one-person business with no separate legal entity to absorb the gap. It is the difference between a normal month and one where the sole trader is personally short, because a sole trader’s business cash flow and personal cash flow are, by definition, the same account. That distinction, no legal wall between what the business owes and what its owner personally has to cover, is the thread running through most of the data in this roundup, and it is worth keeping in mind as the numbers shift from the UK to Australia below, since a sole trader structure carries the same exposure regardless of which country’s tax office defines it.
Who Are Australia’s Sole Traders, and Is That Changing?
Increasingly, they are women, and the shift has been rapid. Female sole traders in Australia grew 31% between 2017-18 and 2021-22, more than double the 15% growth rate recorded for men, according to ASBFEO’s analysis. Women accounted for 40% of Australia’s sole traders in 2021-22, up from 37% five years earlier, with the strongest gains among women aged 30 to 49 and further growth among both younger and older women.
Figure 3: Australian sole traders by sex, 2021-22. Source: Australian Small Business and Family Enterprise Ombudsman, January 2026.
Construction remains the single largest industry for Australian sole traders, at 12% of the total, but it is not where the growth is happening. Transport, postal, and warehousing and healthcare and social assistance are the two fastest-growing industries for sole traders, driven partly by gig-economy delivery work and partly by aged care and disability support demand. Culturally and linguistically diverse sole traders make up 37% of the total and grew fastest of all in transport, postal, and warehousing, up 35% over the same five years while the non-CALD group in that industry actually shrank 6%.
Geography tells a related story. Nearly two-thirds of Australian sole traders, 64%, now operate from a metro area, up from 58% five years earlier, while roughly a quarter run their business from outside a major city. Regional growth has been strongest among women and among sole traders providing unpaid care alongside their business, two groups the report flags as easy to overlook in policy conversations built around a generic, city-based idea of what a small business owner looks like. Put the industry shift and the geographic shift together and the picture is of a sole trader population that looks less and less like the tradesperson-in-a-ute stereotype with each passing year, even as construction keeps the largest single share.
Figure 4: Female sole traders grew more than double the male rate, 2017-18 to 2021-22. Source: Australian Small Business and Family Enterprise Ombudsman, January 2026.
Which Sole Traders Face the Worst Payment Disputes?
Transport, postal, and warehousing sole traders, and the gap with every other industry is widening rather than closing. Nearly half, 49%, of the disputes this group brought to ASBFEO in 2025 were payment-related, up from 46% in 2024. Across every other industry combined, payment-related disputes actually fell over the same period, from 39% in 2024 to 34% in 2025.
That divergence lines up with who is actually doing the work in this sector. Male sole traders account for over 90% of transport, postal, and warehousing operators, and CALD sole traders in the same industry grew 35% over five years, the fastest of any group in any industry the ASBFEO report tracked. A sole trader in this line of work is typically contracting to a single platform or logistics business rather than juggling several direct clients, which concentrates payment risk onto one relationship instead of spreading it across many, and likely explains why a dispute in this sector is now more than twice as likely to be about payment specifically as a dispute in most other industries.
Figure 5: Share of ASBFEO disputes that are payment-related, by sector. Source: Australian Small Business and Family Enterprise Ombudsman, January 2026.
ASBFEO’s own reading of this split is that transport, postal, and warehousing sole traders are facing mounting, sector-specific challenges getting paid what they are owed, a pattern the ombudsman flags as driving the sharpest rise in requests for its assistance of any industry it tracks. A sole trader delivering parcels or freight for a platform or contracting business typically has the least negotiating leverage of anyone in the payment chain, which likely explains why the dispute rate is both the highest of any sector and still climbing while the broader economy’s rate improves.
How Much Does Late Payment Cost a Sole Trader, and Do They Protect Themselves?
In hard cash terms, quite a lot. UK self-employed workers are currently owed an average of £5,230 in late payments, up from £5,140 in 2020, according to IPSE. The knock-on effects go beyond the balance sheet: 20% of those affected say a late payment has left them without money to cover basic living costs such as rent and bills, 23% have had to use a credit card or overdraft to bridge the gap, and 21% have drawn down most or all of their savings. Over a self-employed career, 31% say they have completed work for a client and never been paid for it at all.
Sole traders are not simply absorbing this passively, though. 76% say they make a point of invoicing clients promptly specifically to protect against late payment, and 74% say maintaining a good client relationship helps keep payment on schedule, per the same IPSE research. Prompt, professional invoicing will not fix a client who has decided not to pay, but it removes the most common excuse, that the invoice arrived late or was unclear, from the conversation entirely.
| Country | Sole traders / self-employed | Late-payment signal | Source |
|---|---|---|---|
| United States | 31.0 million sole proprietorships, tax year 2022 | $2,080 billion in business receipts | IRS SOI Bulletin, Spring 2025 |
| Australia | 1,696,521 sole traders, 2021-22 | 49% of transport, postal & warehousing disputes are payment-related (2025) | ASBFEO, January 2026 |
| United Kingdom | Self-employment fell 4.7% year-on-year to Q3 2025 | 35% not paid on time in the last 12 months | IPSE, 2024 / ONS, December 2025 |
Table 1: Sole trader population and payment-related data across three countries. The UK figure, 35% not paid on time, is the same measure cited throughout this roundup as the headline late-payment rate for sole traders.
The Bottom Line
A sole trader is the business, in a way an incorporated company’s owner is not, so a late-paying client does not just strain a business account, it strains a person’s actual finances. The data above says that risk is not shrinking: Australia’s sole trader population keeps growing while payment disputes in its highest-risk sector keep climbing, and UK self-employed workers are owed more in unpaid invoices today than they were five years ago. None of that is fixable with willpower alone, but the one lever sole traders consistently report using, sending a clear, prompt invoice with unambiguous payment terms, is also the one within a single person’s control before a client ever has the chance to let a due date slide.
Frequently Asked Questions
What percentage of sole traders are paid late? 35% of UK self-employed workers, most of whom trade as sole traders, were not paid on time by a client in the last 12 months, according to IPSE’s late payment tracking. 18% of those affected waited more than three months past the agreed deadline.
How many sole traders are there? 31.0 million Americans reported nonfarm sole proprietorship income on their tax returns for tax year 2022, according to the IRS Statistics of Income Bulletin. Australia counted 1,696,521 sole traders in 2021-22, up from 1,405,735 five years earlier, per the Australian Small Business and Family Enterprise Ombudsman.
Which sole traders face the worst payment disputes? Sole traders in transport, postal, and warehousing. In 2025, 49% of the disputes this group brought to Australia’s small business ombudsman were payment-related, up from 46% in 2024, compared with 34% across all other industries.
How much does late payment cost a sole trader? UK self-employed workers are currently owed an average of £5,230 in late payments, up from £5,140 in 2020, according to IPSE. 20% say a late payment has left them without money to cover basic living costs like rent and bills.
Sources and References
- IRS: SOI Tax Stats, SOI Bulletin: Spring 2025, nonfarm sole proprietorships, tax year 2022 (31.0 million returns, business receipts, and profit figures).
- Australian Small Business and Family Enterprise Ombudsman: Sole Traders, The Unsung Hero of Australia’s Economy (January 2026), ABS DataLab analysis of sole trader population, demographics, and payment dispute rates by industry.
- IPSE: Late Payment within the Self-Employed Sector (2024), survey data on late payment prevalence, amounts owed, and self-employed responses.
- Office for National Statistics: UK Labour Market Overview (December 2025), self-employment jobs trend to the quarter ending September 2025.
Note: All figures verified as of August 2026.