AbstractHomeownership has traditionally been high in Australia, where a broad range of tax and social security concessions are designed to promote ownership and reduce housing costs for owners. These have allowed homeowning age pensioners to avoid poverty despite receiving a pension that is low by international standards among high‐income countries. This approach provides the fourth pillar of the Australian retirement income support system, an example of ‘Australian exceptionalism’. We examine recent trends in two measures of social disadvantage—poverty and deprivation—focusing on the changing role and impact of homeownership and housing costs. The comparisons reveal important differences in how housing costs are incorporated into the estimation of their impact and in how different social groups have fared, although our findings also indicate that the groups with highest incidence of poverty and deprivation have benefited least from the gains that others experienced over the period examined.