The study forecasted future expenditure on housing assistance programs; the additional outlays on ISPs due to asset test concessions to home owners; and the aggregate value of home owner tax subsidies. These three housing subsidy components are estimated to increase from $25 billion in 2011 to $32.8 billion in 2031. This study also presented a secure lease scheme for low-income households who are eligible for public housing but currently live in private rental housing and require long term, stable housing. These households include the elderly, disabled, those suffering from long-term health conditions and families with children.