How does the Help to Buy scheme work? Housing Australia will act on behalf of the Commonwealth to administer Help to Buy in the states and territories.

How much will the Help To Buy program cost taxpayers? Treasury says the government has committed an additional $800 million to the Help to Buy scheme in this year's budget.

This is well over a third of all first home buyers. Importantly, though, Help to Buy is a more ambitious scheme that complements the guarantee program by targeting people on lower incomes.