South Africa: a statutory anti-avoidance rule, a concentrated profit-shifting problem, and a split for small firms

South Africa is the country on this site where the small-business story splits cleanly in two. Against the special scale built for small companies, the self-employed professional pays far more, every time. Against the standard company rate, the same professional pays less at lower incomes and more only above about R866,000 of profit. Behind both sits a tax authority with a full statutory anti-avoidance rule and a profit-shifting problem that independent research has measured and found heavily concentrated among the very largest firms.

The tax landscape

South Africa runs a residence-based income tax administered by the revenue authority. For the 2026/27 tax year, which runs from 1 March 2026 to 28 February 2027, individuals are taxed on a sliding scale from 18% on the first R245,100 of taxable income up to 45% above R1,878,600, with a primary rebate of R17,820 that lifts the effective tax-free threshold to R99,000. The brackets were adjusted for inflation in the February 2026 budget, the first such adjustment since 2023/24. A self-employed person is taxed on business profit under this same personal scale, and there is no mandatory social-security contribution on a sole proprietor's own earnings: the unemployment-insurance fund is an employer-and-employee arrangement of 1% each that does not reach an independent contractor's own profit. The standard company rate is 27%, held unchanged in the February 2026 budget, and a dividends tax of 20% falls on the owner when company profit is drawn out.

How the multinational gap plays out there

The same asymmetry that runs through the rest of this site is present in South Africa, and it has been measured. Independent research using firm-level tax returns estimates that the largest multinationals operating in the country shift about 78% of their profits, on average, to offshore tax havens, and that profit shifting is highly concentrated: the top 10% of firms account for around 98% of the estimated volume, while the smallest half of multinationals with tax-haven affiliations do not shift profit at all. The resulting revenue loss is estimated at about 4% of annual corporate income tax receipts, roughly R7 billion a year. That is the same pattern documented everywhere else here: the tools that move profit across borders only work at a scale a single-country business never reaches. None of it requires breaking the law.

The small business corporation structure

South Africa offers a deliberately gentle company structure for genuinely small firms. A qualifying small business corporation is taxed not at the flat 27% rate but on a graduated scale: nil on the first R99,000 of taxable income, then 7%, then 21%, then 27% on higher bands. To qualify, every owner must be a natural person, annual turnover must not exceed R20 million, and the company must not be a personal-service provider. Where it qualifies, the effective rate on R600,000 of profit is about 11.8%, on R900,000 about 16.9%, and on R1,000,000 about 17.9%. That is a real, published, legally available rate, and it is far below what an unincorporated professional on the same profit pays. The self-employed person, taxed on the personal scale, cannot reach it without incorporating and meeting the conditions.

The profit-shifting context

The two measurements of South Africa's gap sit at opposite ends of the size scale. At the small end, the small business corporation scale hands a qualifying company a nil band and low entry rates the individual never gets. At the large end, the UNU-WIDER research shows the biggest multinationals achieving effective rates well below the 27% standard rate by shifting profit offshore, costing the country an estimated 4% of its corporate income tax receipts. South Africa is not separately pinned in the Tax Justice Network's State of Tax Justice 2024 edition used elsewhere on this site, so we use the UNU-WIDER figure as the country-specific loss estimate and label it as such rather than borrow a number from a different methodology. On the Corporate Tax Haven Index 2024, South Africa ranks 51st of 70 jurisdictions, with a haven score of 47 out of 100 and a global scale weight of 0.3%, which places it low as an enabler: it is more a place where the problem lands than a place that exports it.

What it means for South African small businesses

The honest summary is that South Africa rewards the very small and the very large, and taxes the middling self-employed professional hardest of the three. A sole proprietor on R600,000 pays an all-in 22.2%, which is below the 27% standard company rate but well above the 11.8% a qualifying small business corporation pays on the same profit. The lines against the standard rate only cross at about R866,000 of profit: above that the sole trader pays more than a large company, below it less. Against the small-company scale the gap never closes, the sole trader pays between 1.6 and 1.9 times the rate at every level. The structures that take the largest multinationals below even 27% are out of reach entirely. The legitimate route for a small South African firm is the ordinary domestic one: qualify for the small business corporation scale if the conditions fit, and claim the standard allowances on the annual return. None of that is the offshore profit shifting the research describes, and no amount of it closes the gap the largest firms enjoy.

Key facts

• South African individuals are taxed on a sliding scale from 18% to 45% for 2026/27, with a primary rebate of R17,820 and a tax-free threshold of R99,000.
• There is no mandatory social-security wedge on a sole proprietor's own profit, so the all-in rate and the income-tax-only rate are the same number.
• The standard company rate is 27%, held unchanged in the February 2026 budget; a qualifying small business corporation is taxed on a graduated scale of nil, 7%, 21% and 27%.
• A self-employed professional pays 22.2% all-in on R600,000, below the 27% company rate but above the small business corporation's 11.8%; the lines against the standard rate cross at about R866,000.
• The largest multinationals are estimated to shift about 78% of their profits offshore, costing about 4% of corporate income tax receipts, roughly R7 billion a year (UNU-WIDER).
• South Africa ranks 51st of 70 on the Corporate Tax Haven Index 2024, haven score 47 out of 100, global scale weight 0.3%.