Explainer: Australia's cyclone insurance pool — cheaper premiums, but who bears the risk?

Australia's cyclone reinsurance pool now protects approximately 3.2 million buildings, with cumulative claims reaching $1.65 billion. It is helping to reduce insurance premiums in cyclone-prone regions. But the scheme raises an important economic question: is Australia reducing cyclone risk, or simply changing who pays for it?

What is reinsurance?

Reinsurance is insurance for insurance companies. An insurer collects premiums from households and businesses, then purchases reinsurance to protect against unusually large claims.

Cyclones are particularly expensive to insure because one event can damage thousands of properties simultaneously.

How does the government pool work?

Established in July 2022, the pool is administered by the Australian Reinsurance Pool Corporation (ARPC).

Insurers transfer eligible cyclone risks to ARPC and pay reinsurance premiums. The pool operates without a profit objective and is supported by an annually reinstated $10 billion Commonwealth guarantee.

This enables cheaper reinsurance for higher-risk properties, with some costs effectively shared across the insured pool.

Is it working?

On affordability, the evidence is encouraging.

The ACCC found that average premiums per $100,000 insured fell by 11% for homes, 8% for strata properties and 24% for small businesses in higher cyclone-risk areas during insurers' first year in the pool.

The pool currently receives approximately $675 million in annual reinsurance premiums. It has incurred $1.65 billion in claims since commencement, with $1.37 billion paid by 31 July 2026.

Importantly, ARPC's latest pricing consultation estimates annual cyclone claims and expenses at $786 million on its proposed pricing basis. This is not directly comparable with current premiums, but reinforces the importance of long-term financial sustainability.

Is Australia reducing the actual risk?

Here lies the policy challenge.

Risk financing changes how disaster losses are funded. Risk mitigation reduces physical damage through stronger roofs, protected windows and other improvements.

The pool offers discounts for these improvements, with $9.7 million applied to home premiums.

But discounts do not establish how much new mitigation investment has occurred.

The ultimate test is whether the scheme reduces future cyclone losses, rather than simply making existing risks cheaper to insure.