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Market Concentration in Australian Insurance Industry Under Scrutiny

Market Concentration in Australian Insurance Industry Under Scrutiny

Recent analyses have brought to light concerns regarding the concentration of Australia's general insurance market, where four major companies—Insurance Australia Group (IAG), Suncorp, QBE, and Allianz—control nearly 74% of the market share.
This dominance has sparked discussions about its implications for competition and consumer outcomes.

The Australian Competition and Consumer Commission's (ACCC) fourth annual insurance monitoring report highlights that, despite the introduction of the government's cyclone reinsurance pool aimed at moderating premium increases and encouraging new market entrants, no new insurers have entered high-risk markets. Existing insurers have also shown limited interest in expanding their exposure, suggesting that the intended competitive benefits of the reinsurance pool have not materialised.

In concentrated markets, the competitive pressure to offer the most favourable pricing diminishes. This environment can lead to practices such as price optimisation, where renewal premiums are set based on a customer's likelihood to shop around rather than purely on risk assessment. Research from the Actuaries Institute indicates that such practices are more prevalent in less competitive markets, potentially disadvantaging loyal customers.

The ACCC has advocated for reforms to enhance pricing transparency, expressing concerns that consumers may lack the necessary information to make informed choices. The multi-brand strategies employed by dominant insurers can further obscure genuine competition, as consumers may unknowingly compare quotes from different brands under the same parent company.

For real estate professionals, this market dynamic underscores the importance of diligent insurance selection. Comparing policies from a diverse range of providers, beyond the major players, can uncover more competitive options tailored to specific needs. Additionally, staying informed about regulatory developments and advocating for greater transparency in the insurance sector can contribute to a more equitable market environment.

Published:Tuesday, 21st Apr 2026
Source: Paige Estritori

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