The typical Australian family now spends $240 per week on groceries, a jump of roughly $22 from just a year ago. For a household budget already stretched thin, that extra $1,100 annually stings. Fruit prices have climbed 12 per cent, bread is up 3 per cent, and nearly four in ten Australians now rank grocery costs among their top three financial stressors.
The government's response is a price-gouging ban set to begin July 1, 2026. From that date, supermarkets with annual revenue exceeding $30 billion (currently only Coles and Woolworths) will face a new rule: prices must reflect supply costs plus a reasonable margin. Breach the rule and retailers face fines up to $10 million.
The logic appears straightforward. If prices are excessive relative to costs, ban them. Relief should follow. But the policy faces a problem economists have long understood: price regulation does not cure market structure.
The Australian Competition and Consumer Commission's own investigation found no evidence the two major retailers were price gouging in the traditional sense. Rather, the issue is structural. Two retailers control nearly two-thirds of the supermarket market. With limited competition, both can maintain healthy margins even during periods of inflation. That is not illegal. It is not price gouging. It is duopoly.
Economists warn the new rules carry unintended consequences. If retailers fear regulatory action whenever margins widen, they may adopt cautious, uniform pricing strategies to stay within safe bounds. That behaviour could actually weaken price competition, not strengthen it. Coles and Woolworths have already signalled as much, arguing the rules could reduce discounting and innovation in their sourcing and supply chain.
The definition of "reasonable margin" is deliberately vague in the legislation. What counts as reasonable will only become clear once the ACCC prosecutes a case and a court rules. Until then, supermarkets operate under uncertainty.
This does not mean regulation is pointless. Transparency requirements and regular reporting of supply-chain costs may reveal genuine instances of excessive pricing and place downward pressure on margins where they are clearly out of step with fundamentals. But regulation is a blunt tool when the deeper problem is market concentration.
The gap between what families pay and what the government hopes the law will achieve is where the real tension lies. Australians understandably want relief at the register. But price caps alone cannot guarantee it if the underlying market remains dominated by two major players facing limited competitive pressure. The new rules are worth implementing and monitoring closely. Just do not expect them to reverse years of accumulated cost inflation on their own.