Statistics South Africa has completed a formal rebasing of the national accounts, moving the base year from 2015 to 2022 and producing a materially different picture of the economy than the one policymakers and investors have been working with. The exercise applied refined methodological tools, new data sources, and expanded coverage of activity that previously escaped official measurement.
The headline consequence is a significant upward revision. Under the updated calculations, nominal GDP for 2025 was revised upward by 5.3%, rising from an initial estimate of R7,642 billion to R8,044 billion. For the 2022 base year itself, the new estimate stands 4.9% higher than before, adding R324 billion to total national output.
For the institutions charged with economic management, the revision matters well beyond the headline number. Stats SA frames the exercise as part of a routine but essential obligation: national statistical agencies periodically update their benchmarks in line with international best practice so that official figures reflect structural shifts across industries. The recalibrated series now gives policymakers, investors, and financial analysts a clearer and more accurate foundation for assessing the country’s economic capacity, debt ratios, and growth trajectory.
The R324 billion expansion in the 2022 base year was driven primarily by the finance industry, which contributed R127 billion to the upward revision. Much of that increase reflects an improved methodological framework for measuring owner-occupied rent. The trade and mining sectors each added R61 billion to the refreshed baseline.
On the expenditure side, household consumption expenditure recorded the largest upward shift. That adjustment reflects newly integrated data from the Income and Expenditure Survey, along with better capture of informal trade and owner-occupied housing costs.
A central element of the overhaul concerns what statisticians call the non-observed economy: activity that is informal, illegal, or illicit and therefore difficult to capture through standard surveys. Stats SA has systematically tracked this segment since 1995, gradually broadening coverage with each benchmarking cycle. Over the years, the agency has brought into the measurement framework activities ranging from spaza shops and informal taxis to street hawkers, shebeens, and informal recycling.
For the 2022 base year, several previously uncounted activities were incorporated into official calculations, including illegal mining, e-hailing services, and unregulated gambling. In total, the non-observed economy accounted for 8.7% of total value added in 2022, equivalent to R551 billion.
The composition of that figure offers a detailed map of where unrecorded activity concentrates. For every R100 generated within the non-observed economy, trade generated R21.00, followed by transport and communication at R17.30 and manufacturing at R14.90. Prevalence varies sharply by sector. Construction exhibited the highest concentration, with non-observed activities accounting for just over a quarter of total sector output. The finance industry recorded the lowest prevalence, at 2.1%.
Meanwhile, the publication of these revised figures places a new set of reference points in the hands of the institutions that depend on them. Debt-to-GDP ratios, fiscal projections, and growth targets are all calculated against the size of the economy, so a revision of this scale changes the denominators on which budget and policy decisions rest. The updated baseline also alters how the relative weight of industries is understood, with the finance sector’s contribution to measured output now larger than earlier estimates suggested.
Stats SA’s decision to fold illegal mining, e-hailing, and unregulated gambling into the official accounts is presented as a continuation of a measurement practice the agency has maintained for three decades, rather than a change in policy direction. Each benchmarking cycle, the agency says, broadens the scope of what is counted, in keeping with the methodological standards that govern national accounting internationally.
The revised series now stands as the official record against which future economic performance will be judged, and the accountability for maintaining its accuracy rests with the national statistical office that produced it. Whether the next benchmarking cycle, due under the same international standards, will capture still more of the unrecorded economy remains an open question for the institutions that rely on these figures.