"There will be no reduction in subsidy, in fact probably an increase, but it will be distributed a bit differently."
Asked whether that would mean fewer state houses, he said: "Possibly. I can't confirm whether there will be fewer state houses, but we will certainly be maintaining or increasing the number of people who can get access to income-related rents."
At present, state house tenants pay rents fixed at only 25 per cent of their net incomes, unless they earn more than the rates of NZ superannuation - $357 a week for single people living alone or $550 for sole parents with children or couples.
Above that, their rent increases by 50 per cent of their extra income up to a maximum fixed at the market rent for the property. For example, a sole parent beneficiary with two children would pay only $113 a week, compared with the average market rent of $570 a week for a three-bedroom house in Auckland.
The Government pays Housing NZ the difference between what the tenants pay and the market rents - currently $614 million a year.
In contrast, tenants in community-owned housing typically pay 75 to 80 per cent of market rents. They can get a Work and Income accommodation supplement, but even then a sole parent beneficiary with two children paying rent of 75 per cent of the Auckland average, or $427.50 a week, would end up paying a net rent of $202.50 a week - almost twice as much as what they would pay in a state house.
Income-related rents
Income below NZ super:
Rent 25 per cent of income.
Income above NZ super:
Rent 25 per cent of super rate, plus 50 per cent of income above that up to market rent.