Six key insights from the RBA Financial Stability Report

The Reserve Bank’s October Financial Stability Review provides a useful map of the risks sitting behind Australia’s financial system. Its central conclusion is reassuring: households, businesses and banks remain broadly resilient. But the sources of potential instability are changing. Private credit, the enormous superannuation system, AI investment and increasingly concentrated technology infrastructure feature prominently.

Here are six key insights.

1. Australian mortgage borrowers have much larger buffers than the headlines suggest

Higher rates are putting pressure on household cash flows, but the RBA finds little evidence of widespread mortgage distress. Less than 1% of borrowers are currently estimated to be in negative equity and slightly under 2% of variable-rate owner-occupier borrowers have insufficient income to cover mortgage repayments and essential expenses.

More strikingly, the RBA estimates that even a uniform 20% fall in house prices would leave only around 5% of mortgages in negative equity. Strong post-pandemic house-price growth, savings buffers and tighter lending standards provide substantial protection. Household financial stress and banking-system credit risk are therefore very different things.

2. Australian banks could absorb a severe housing downturn

The banking system appears even more resilient. The RBA models a severe downturn involving a 3% fall in GDP and 20% fall in house prices. Even then, the banking system’s Common Equity Tier 1 capital ratio falls only to around 11.6%, leaving banks capable of continuing to lend.

Australian banks have also reduced their reliance on potentially volatile offshore wholesale funding over the past two decades, replacing it with more stable domestic deposits. Just over half of remaining offshore debt funding has maturities exceeding 12 months. The traditional banking system is therefore not where the RBA sees the largest emerging vulnerabilities.

3. Private credit is an investor-protection issue before it is a systemic-risk issue

Australian private credit has expanded rapidly but remains relatively small. The RBA estimates that it accounts for roughly 10% of business debt but less than 2% of financial-system assets.

Australian funds are heavily exposed to property, including construction and development, but generally use relatively little leverage and banks have limited exposures to them. That means losses are more likely to be borne by fund investors than transmitted through the banking system. The RBA therefore distinguishes between financial stability and investor protection. ASIC’s concerns about opaque valuations, governance and risk management can be serious without implying another banking crisis.

4. Superannuation has become part of Australia’s financial infrastructure

Australia’s superannuation system now accounts for around one-third of financial-system assets and will continue growing relative to domestic financial markets. Approximately half the assets of APRA-regulated funds are already invested offshore.

Historically, super has strengthened financial stability: compulsory contributions provide steady inflows, leverage is limited and withdrawals are constrained. But the system is changing. More members will enter retirement and gain greater capacity to withdraw funds, while growing foreign investment creates larger foreign-exchange hedging requirements. APRA’s first system-wide stress test was reassuring, but the RBA wants funds to keep strengthening liquidity and operational risk management as their systemic importance grows.

5. The AI investment boom is becoming a financial-system risk

The RBA devotes unusual attention to the financing of artificial intelligence. AI companies are increasingly turning to bonds, private credit, bank lending and asset-backed finance to fund enormous investment programs. Debt could finance more than one-third of planned AI capital expenditure, while technology companies generated nearly 30% of US investment-grade corporate bond issuance in the first half of 2026.

The risk is not AI itself, but leverage, concentrated exposures and increasingly complex financing. The RBA highlights circular financing arrangements, possible overinvestment, long-dated debt funding rapidly depreciating technology and financial commitments that could become problematic if expected AI revenues fail to materialise.

6. The next financial crisis may be operational rather than financial

The RBA increasingly treats cyber attacks, technology outages and dependence on common service providers as potential systemic risks rather than simply problems for individual institutions.

APRA’s survey found 91% of regulated institutions rated cyber security a high or critical risk, followed by geopolitical risk at 70%. AI is simultaneously increasing cyber capabilities and financial institutions’ dependence on complex technology providers.

The RBA specifically identifies Austraclear as systemically important and says ASX has yet to establish adequate contingency arrangements for maintaining its critical services through a prolonged outage. A future financial shock could therefore begin not with bad loans, but with infrastructure that stops working.