South Africa’s fiscal tightrope: who is really paying the bill?
Every year, South Africa’s national budget arrives with fanfare and political theatre. But once the speeches fade, what the numbers actually reveal is a story that deserves far more sustained public attention than it typically receives.
The Centre for Risk Analysis (CRA) has just published the 2026 edition of the Public Finance chapter, contained in the annually updated Socio-Economic Survey of South Africa. It contains the latest data drawn from the National Treasury and tax statistics from the South African Revenue Service. The picture that emerges is one of a fiscus under sustained structural pressure, and a taxpayer base that is both indispensable and dangerously narrow.
In 2025/26, national revenue – as a proportion of GDP – is estimated at 28.8%, against expenditure of 33.2%, leaving a budget deficit of 4.5%. Government debt stands at 78.9% of GDP; a figure that, not long ago, would have been considered alarming. Today, it is simply the baseline. Debt-service costs now consume 16.3% of the entire national budget. That is more than we spend on health (11.1%), and not far off what South Africa spends on education (19.7%). Every rand spent servicing the debt is a rand not building a school, equipping a clinic, or maintaining a road.
The revenue side of the equation carries its own vulnerabilities. South Africa leans heavily on personal income tax, which accounts for 39.2% of national tax revenue and is projected to reach 10.1% of GDP in 2025/26. That dependence would be less concerning if the taxpayer base were broad. It isn’t.
The figures reveal striking concentration. Taxpayers with taxable income above R350 001 – just 34.6% of all assessed individual taxpayers – contribute 90.4% of all personal income tax assessed. Those earning below R350,000, comprising 65.4% of taxpayers, contribute a mere 9.6%. At the apex, 13 878 individuals with taxable income above R5 million paid assessed tax totaling R58.3 billion in 2024. The entire personal income tax system rests on a remarkably thin foundation.
Burden
This matters enormously when you consider what is happening at the corporate level. Corporate income tax grew by just 2.0% between 2023/24 and 2024/25, compared to personal income tax growth of 12.6%. The economy’s productive sectors are under pressure, and the burden of sustaining the state is shifting ever more firmly onto the shoulders of employed individuals.
The municipal finance data add another dimension of concern. As of 30 June 2025, total municipal debt across all municipalities stood at R427.7 billion, with 87.9% of that amount more than 90 days overdue. Households account for 71.9% of debtor balances. This is not merely a cash flow problem for municipalities: it reflects a deeper breakdown in the social compact around payment for services, with cascading effects on infrastructure maintenance and service delivery capacity. Johannesburg alone accounts for R66.9 billion of the total metro debtor book, with 90.5% of that overdue by more than 90 days.
On the provincial side, nearly 96.5% of provincial revenue originates from national government transfers; provinces generate just 3.5% of their own revenue. This level of fiscal dependency means that any deterioration in the national revenue base flows directly and rapidly into provincial service delivery. With personnel expenditure consuming 61.7% of total provincial expenditure nationally, provinces have limited room to absorb fiscal shocks without cutting capital investment or services.
International comparisons are sobering. South Africa’s budget deficit for 2026 is projected at 4.2% of GDP by The Economist, against a euro-area average of -3.4%, and with gross government debt already at 78.9% of GDP. South Africa is running deficits at emerging market levels without the growth rates that typically accompany them. GDP growth of between 1% and 2% is insufficient to meaningfully reduce debt as a share of the economy.
Extraction target
None of this is inevitable. But the data make it clear that fiscal consolidation cannot be achieved by squeezing the same narrow tax base tighter. Real, private sector-led, job-creating growth is the only sustainable route to a broader revenue base and a manageable debt trajectory. That requires policy choices attracting investment, reducing the cost of doing business, and treating the productive private sector as a partner rather than a fiscal extraction target.
The numbers in our Public Finance chapter do not lie; the question is whether policymakers are prepared to act on what they reveal.
*The 2026 Public Finance chapter is available at cra-sa.com
