The Government is being told it'll have to take responsibility if mortgage rates rise to eight per cent - in the same way it's claiming credit for today's very low rates.
Labour's housing spokesman Phil Twyford says rising rates will add hundreds of dollars to people's mortgage repayments.
It comesat a time home buyers in some hot spots have had to borrow up large to get a foot in the door of their own home.
Mr Twyford says the Government's housing policy is a shambles, but Labour won't be afraid to tax speculators.
He says the party will also build 100,000 affordable starter homes.