1. High interest rates
Like many other countries, Australia experienced an inflation shock following the pandemic. The Reserve Bank of Australia responded by raising the cash rate from 0.10 per cent to 4.35 per cent over an 18-month period, which was the largest and most rapid increase in the cash rate in over 30 years.
It is the rate of change in interest rates, rather than the level of change, that can be important for house price growth, and this sharp increase led to price falls throughout 2022. However, with rates remaining on hold since November 2023, prices have rebounded.
For the overall economy, it is the outright level of interest rates that is most important. High interest rates coupled with strong consumer spending continue to restrict household borrowing capacity and the ability to service mortgages. However, interest rates affect different parts of the market in different ways. The upper end of the market in the larger capital cities is far less sensitive to interest rate rises than the lower end. The upper end usually purchases on a much lower loan to valuation ratio than the lower end or the first-home buyer segment of the market.
We can assess the pressure existing borrowers are under by assuming a maximum serviceability threshold of 40 per cent of gross disposable income and comparing it to the current serviceability requirements. On average, interest repayments have been around 30 per cent of gross disposable income, or 10 percentage points below the maximum serviceability threshold. However, the recent sharp rise in interest rates has cut this to just 4 percentage points, which is the lowest level since the late 1980s, meaning that servicing a loan today is as tough as it was in the 1980s.