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RBA Models 20% Housing Price Fall, Finds Only 5% of Mortgages Could Enter Negative Equity

Published 1 October 2026
RBA Models 20% Housing Price Fall, Finds Only 5% of Mortgages Could Enter Negative Equity

Central bank’s stress scenario tests households against 6.3% unemployment, 7% inflation and a 5.4% cash rate as housing risks remain in focus

The Reserve Bank of Australia has used an extreme economic scenario to assess how Australian households and mortgage borrowers could respond to a severe downturn, with the analysis suggesting that most borrowers would retain substantial equity even if housing prices fell sharply.

In the RBA’s adverse downturn scenario, the unemployment rate rises to 6.3%, inflation reaches 7% and the cash rate increases to 5.4%. Under those conditions, the share of mortgagors considered at higher risk of defaulting on their loans is estimated to rise to around 5%.

The scenario is designed to test the resilience of household balance sheets against a combination of weaker employment, high inflation and substantially higher interest rates.

Most borrowers retain housing equity

Despite recent declines in housing prices, the RBA says most Australian households continue to hold significant equity in their properties.

The central bank estimates that less than 1% of borrowers are currently in negative equity, meaning they owe more on their mortgage than the value of their property.

Recent buyers and households that took out higher loan-to-value ratio mortgages are more exposed to a decline in property prices. This includes some first-home buyers participating in the Australian Government 5% Deposit Scheme.

However, the RBA said the structure of the scheme and the characteristics of most first-home buyers help mitigate the potential financial-stability risks associated with these borrowers.

RBA tests a 20% housing price decline

The central bank also considered an even more severe housing scenario involving a 20% uniform decline in housing prices from current levels.

Even under that scenario, the RBA estimates that only around 5% of mortgages would move into negative equity.

The analysis highlights the role of existing housing equity buffers. Borrowers who purchased properties more recently or used higher loan-to-value ratios would generally have less protection against falling prices, while households with larger accumulated equity would have greater capacity to absorb a decline.

The RBA noted that housing prices have fallen in recent months as sentiment weakened, with monetary policy remaining restrictive and changes to negative gearing and capital gains tax discount policies also affecting housing-market conditions.

Mortgage stress remains an important risk

The scenario analysis does not suggest that households would be unaffected by a severe downturn. Higher unemployment, elevated inflation and a cash rate of 5.4% would place significant pressure on household budgets and debt-servicing costs.

There is also a broader question around how households respond when mortgage repayments remain manageable but other expenses become harder to meet. Costs such as insurance, maintenance and council rates can place additional pressure on borrowers even without a formal mortgage default.

The RBA's modelling is therefore focused not only on property prices, but on the broader resilience of household balance sheets and the ability of borrowers to continue servicing debt under extreme conditions.

What it means for investors

For investors, the RBA's scenario analysis highlights the importance of housing prices, mortgage stress, household equity and interest rates for financial stability.

A large decline in property prices would not necessarily translate directly into widespread negative equity, according to the RBA's modelling. However, rising unemployment, high inflation and elevated borrowing costs could still increase financial pressure on households and lenders.

The key factors to watch will be the direction of housing prices, labour-market conditions, mortgage arrears and household debt-servicing costs as the RBA continues to assess risks to the financial system.

 

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