RBA Stress Test Reveals Mortgage Risks Under Extreme Economic Conditions

The Reserve Bank of Australia (RBA) recently conducted a severe stress test to assess the resilience of mortgage holders under extreme economic conditions. The test simulated a scenario where unemployment rose to 6.3%, inflation spiked to 7%, and the cash rate reached 5.6%. The results indicated that around 5% of mortgagors would face a higher risk of default, which is slightly above the peak levels seen in 2023.

Despite this increased risk, the RBA noted that approximately two-thirds of these higher-risk borrowers would still have financial buffers to cover their mortgage payments for at least six months. This suggests that the system has some resilience even under severe stress. The test also highlighted that the share of variable-rate owner-occupier borrowers in cash-flow shortfall remains relatively low at around 2%, and the median borrower could cover over a year of scheduled mortgage payments from offset and redraw buffers.

RBA Governor Michele Bullock emphasized that the stress test is not a prediction but a tool to understand how the system would cope if multiple adverse factors occurred simultaneously. The central view of the RBA remains more optimistic, with forecasts of GDP growth and no immediate expectation of a recession. However, the RBA has kept the door open for further interest rate increases if necessary to bring inflation back to target.

The RBA's Financial Stability Review concluded that Australian banks are well positioned to continue lending even in a downturn, which can help cushion economic shocks. The next key dates to watch include the 28 October CPI release and the Board's decision and new forecasts on 3 November, as these will provide more insights into the economic path forward.