South Africa's sugar levy punishes shoppers without proof it works

South Africa's sugar tax debate has two loud lobbies and one silent victim: the shopper. The sugar industry, through the South African Sugar Association, is urging the National Treasury to extend the freeze on Health Promotion Levy increases to 2030, warning of the collapse of a sector supporting 300,000 jobs. Health campaigners want the levy raised. Nobody is asking what the tax does to the poorest households at the till, or whether it has earned its keep as health policy. That is the consumer question, and it is being ignored.

Start with what is verifiable. South Africa introduced the Health Promotion Levy in 2018, the first African country to tax sweetened beverages, at 2.21 cents per gram of sugar above 4g per 100ml. Finance Minister Enoch Godongwana froze increases in February 2023, and the 2026 Budget kept the levy unchanged. The industry's distress is genuine: Tongaat Hulett, the country's only standalone white sugar refinery, faces provisional liquidation that could leave 18,000 of South Africa's 28,000 sugarcane growers without functioning mills, while sugar imports surged to nearly 200,000 tons in 2025 from 7,113 tons in 2021.

But a struggling industry does not make a defensible tax. By SA Canegrowers' own account, the levy destroyed 16,000 jobs and R2 billion in revenue in its first year, with, in their words, no credible evidence of any impact on obesity or non-communicable diseases. Consider what that means: a tax that wipes out livelihoods and punishes low-income shoppers, the people who buy the most sweetened drinks, without demonstrable health gains. That is the worst of all worlds, a regressive levy that fails on its own terms.

This is the paternalist pattern: the state taxes the lifestyle choices of the poor, calls it health, and never has to show its work. If the National Treasury wants this levy to be more than a revenue line dressed as virtue, the burden of proof is on the government. Publish the household impact data. Publish the consumption evidence. Show that the design changes behaviour rather than just raising prices.

The Nigeria comparison is instructive. South Africa's levy at least differentiates by sugar content through its 4g per 100ml threshold, giving manufacturers a reason to reformulate. Nigeria's proposed levy would tax retail value regardless of sugar content, the structure the World Health Organization warns against. Whatever Pretoria decides on the freeze, FCFA's position is simple: no tax on choice without proof, and the proof must be published, not asserted.