Treasurer Scott Morrison says the government is developing a package of reforms to address housing affordability, rental stress and homelessness for inclusion in the May federal budget.

It comes as property and planning groups mount pressure on the NSW government to act to improve affordability, following the Victorian government's announcement of a collection of schemes to assist first-home buyers on Sunday.

Mr Morrison said while federal Labor's only policy to address housing issues was a "silver bullet" plan on negative gearing, the government was preparing to work with the states and territories on housing supply issues.

"We're working on a package for the budget," he told Sky News on Sunday. "It will deal with the challenges in housing affordability from those who are reliant on social housing in our community, all the way through to those who are trying to break into the first home ownership market.