“This is all about getting a fairer go for families in their weekly shop,” they said in a statement released late Saturday.
Penalties would be steep: as much as A$10 million (US$6.7 million or $8.7 million) per violation, or three times the value of any benefit gained, or 10% of annual turnover if that figure can’t be determined.
The ban forms part of a broader effort to strengthen competition and transparency in the supermarket industry, which has faced sustained criticism amid persistent cost-of-living pressures.
The reforms follow a long-running investigation by the Australian Competition and Consumer Commission, which found the grocery sector is among the most concentrated in the world, dominated by Coles Group Ltd and Woolworths Group Ltd in an effective oligopoly.
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Profit leaders
The watchdog reported in March that the major chains, along with ALDI Inc, increased their average product margins over the previous five years, particularly on branded packaged food and household goods. It also said that Australia’s largest supermarket groups rank among the most profitable globally.
The inquiry highlighted structural advantages enjoyed by the two dominant chains, including preferential access to new store sites and significant bargaining power over suppliers — factors it said limit competition and contribute to higher prices for consumers.
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The government also flagged other reforms, including increasing the competition regulator’s funding by more than A$30 million to target harmful or misleading conduct in retail, and consulting on options to strengthen unit pricing rules and tackle “shrinkflation.”
Coles said in an email that it’s committed to easing pressure on shoppers, noting that multiple inquiries, including the competition regulator’s own, “found no evidence of price gouging.”
Input costs
Higher prices are being driven by rising input costs such as energy, fuel and freight, the company said, adding that Coles makes about A$2.43 in profit for every A$100 spent and warning that increased regulation “is likely to put upward, not downward, pressure on prices.”
Woolworths acknowledged the new rules but is focused on delivering value, with average prices in its food retail business declining for seven consecutive quarters, it said in an email.
The law is “unprecedented” in targeting only two Australian-owned companies, while “much larger, foreign-owned retailers” wouldn’t face equivalent restrictions, the company said.
The Australian Retailers Association also opposed the changes. There is no evidence of excessive pricing and the laws risk pushing grocery prices higher by increasing compliance costs and uncertainty, chief executive officer Chris Rodwell said in an email.
The Business Council of Australia criticised the ban as misdirected, pointing to data from the nation’s statistics bureau showing food prices rising more slowly than headline inflation. Supermarket profit margins remain “modest” — about 2%–2.4% in the 2025 financial year, chief executive Bran Black said, adding that additional regulation risks adding costs at a time of weak productivity growth.
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