When the Bank of England flags insurance gaps as a systemic economic concern, it signals that underinsurance is not just a personal financial risk but a threat to broader economic stability. Insurance gaps occur when individuals, businesses, or sectors carry insufficient cover relative to their actual exposure, leaving losses unabsorbed by the insurance system and cascading into the wider economy. For Australian policyholders, the warning carries direct relevance: our own regulator, the Australian Prudential Regulation Authority (APRA), monitors similar risks in home, contents, and catastrophic event cover, where persistent underinsurance can amplify the economic damage from floods, bushfires, and other disasters.

What Are Insurance Gaps?

Insurance gaps describe the difference between the level of cover a policyholder holds and the level needed to fully replace or compensate for a loss. These gaps take several forms. Underinsurance occurs when a sum insured falls short of replacement cost, common in home and contents policies where policyholders estimate values too low or fail to update cover as property values rise. Non-insurance, where eligible risks go entirely uncovered, appears in flood-prone areas where owners cannot afford premiums or believe the risk is remote. Exclusion gaps emerge when standard policies exclude specific perils, such as flood cover in older home policies or earthquake damage, leaving policyholders exposed without realising it.

According to ASIC MoneySmart, many Australian households underinsure their homes by 20 to 30 per cent, often because they base their sum insured on the property’s market value rather than the full rebuild cost (MoneySmart, 2024). The gap widens in regions where construction costs spike after a disaster, when demand for tradespeople and materials outstrips supply.

Why Insurance Gaps Become Systemic Concerns

Insurance gaps turn systemic when they concentrate in specific sectors or regions and coincide with a large-scale loss event. A single underinsured household faces a personal financial setback; tens of thousands of underinsured properties in a flood zone or bushfire corridor create an economic shock. When policyholders cannot rebuild or replace lost assets because their cover falls short, they draw on savings, reduce spending, delay business reinvestment, or default on mortgages. The collective effect ripples through the economy as construction activity stalls, local businesses lose customers, employment falls, and property values decline in affected areas.

As covered in Principles of Finance (OpenStax, 2022), insurance functions as a risk-transfer mechanism that stabilises economic systems by pooling and redistributing losses. When gaps erode that function, the broader economy absorbs the uninsured portion of the loss, amplifying volatility and recovery time. The Bank of England’s concern centres on how climate change is widening these gaps globally: rising frequency and severity of extreme weather events push premiums higher in high-risk areas, pricing some households out of cover entirely, while insurers withdraw from or restrict cover in regions deemed uninsurable. The result is a protection gap that grows precisely where cover is most needed.

The Bank of England’s Findings

The Bank of England’s analysis identified several channels through which insurance gaps threaten systemic stability. First, concentrated underinsurance in mortgage-backed property exposes lenders to higher default risk when disasters strike, as borrowers struggle to service loans on damaged or destroyed homes that insurance payouts cannot replace. Second, gaps in business interruption and liability cover can cascade through supply chains, where one underinsured supplier’s failure disrupts multiple downstream firms. Third, the protection gap in climate-related risks creates a feedback loop: as insurers exit high-risk markets, the remaining population’s average risk profile worsens, driving premiums higher and pushing more households out of cover, which further concentrates risk.

The Bank’s concern is not theoretical. Recent flood and wildfire events in multiple jurisdictions have demonstrated how underinsurance delays recovery, reduces post-disaster economic output, and shifts costs onto government disaster relief programs when private cover proves insufficient.

Insurance Gaps in the Australian Context

Australia faces its own version of these systemic risks. APRA monitors the insurance sector’s exposure to natural disasters and the adequacy of cover in high-risk regions. Chronic underinsurance in northern Australia, where cyclone and flood premiums have risen sharply, has prompted government intervention through reinsurance pools designed to lower premiums and maintain cover availability (APRA, 2024). Even with these measures, significant gaps remain.

The Insurance Council of Australia estimates that many households in flood and bushfire zones carry home and contents cover below replacement cost, particularly in regional areas where construction costs exceed metropolitan averages (Insurance Council of Australia, 2024). The gap becomes acute after a widespread event: following major floods or fires, rebuild costs escalate due to material shortages and contractor availability, exposing the shortfall between a policyholder’s sum insured and the actual rebuild price.

Non-insurance also persists. Some property owners in flood-declared areas cannot obtain affordable cover or choose to self-insure, gambling that the next event will not affect them. When disasters strike these areas, uninsured losses fall on households, local councils, and state governments, straining budgets and delaying recovery.

Read also: Understanding Claim Approval Rates and Insurance Advice in Australia

What This Means for Australian Insurance Holders

For Australian policyholders, the systemic risk framing underscores the importance of accurate, adequate cover. Underinsurance is not just a gap you cover from savings; it contributes to a broader economic fragility that affects recovery speed, property values, and community resilience in your region. The practical steps are direct:

Review your sum insured annually, particularly for home and contents policies. Use rebuild cost calculators provided by insurers or consult a quantity surveyor to confirm your sum insured reflects current construction costs, not market value. As construction costs rise, your cover must keep pace.

Read your Product Disclosure Statement (PDS) and the Target Market Determination (TMD) to identify exclusions and understand what perils are covered. If your area faces flood, bushfire, or cyclone risk, confirm your policy includes cover for those events and that limits are sufficient for total loss scenarios.

For business cover, assess whether your business interruption, public liability, and supply chain cover align with your actual exposure. Gaps in commercial cover amplify the systemic risk the Bank of England describes, as one business failure can cascade through interconnected suppliers and customers.

Consider the trade-off between excess and premium. A higher excess lowers your premium but increases the out-of-pocket cost after a claim. Ensure the excess remains affordable in a loss scenario; an unaffordable excess effectively creates a coverage gap for smaller claims.

Conclusion

The Bank of England’s warning on insurance gaps as a systemic concern highlights a dynamic that applies equally in Australia: when large numbers of households and businesses carry insufficient cover, the economic impact of disasters magnifies, recovery slows, and financial stability weakens. For Australian policyholders, the lesson is to treat insurance not as a cost to minimise but as a critical component of personal and economic resilience. Accurate sums insured, comprehensive cover for relevant perils, and regular policy reviews reduce the individual gap and, collectively, strengthen the system’s capacity to absorb and recover from shocks.

Before making any insurance decisions, read the relevant Product Disclosure Statement (PDS) and Target Market Determination (TMD) and consider obtaining personal advice from a licensed insurance adviser to ensure the cover suits your specific circumstances.

General Advice Warning: This article provides general information only and does not take into account your objectives, financial situation, or needs. Before acting on any information in this article, you should consider whether it is appropriate for you and read the relevant Product Disclosure Statement (PDS). You should also consider obtaining personal advice from a licensed insurance adviser. Insurance products, coverage terms, exclusions, and availability vary by insurer and by state or territory. Always verify current terms in the PDS and confirm details with a licensed adviser for your personal situation.