Emma Griffiths - ABC
Social Services Minister Scott Morrison says wholesale changes to the welfare system are "necessary", but he has signalled they will be introduced slowly and in stages.
A wide-ranging review commissioned by the Government has called for a simplified payment system and tighter eligibility conditions for disability support payments.
Mr Morrison said the proposals could be implemented in the medium to long-term.
"They do point a way forward, I believe, for the next generation of necessary change in this area," he said at the National Press Club (NPC).
"The changes proposed and the way to achieve them are not revolutionary but medium to long-term change that can be achieved incrementally."
However, he acknowledged the Government would be battling a widespread lack of "appetite for change" and called for an "upgrade" in the political debate about levels of welfare support.
"My concern is that right now there seems to be no appetite for the change that is necessary," he said.