Labor is accusing the Turnbull government of being "entirely deceptive" about a budget savings bill it wants the opposition to support.
Manager of opposition business Tony Burke says a draft omnibus bill provided to Labor overnight contains three extra measures, including welfare cuts it rejected in the last parliament.
"Thank heavens we didn't try and make a public statement on our view of it without seeing it, given the government lied about what was in it," Mr Burke told ABC radio today.
"They are not all measures that Labor had included in its costings."
One of the extra measures is a move to strip welfare payments from criminals being held in psychiatric facilities.
It's expected to affect some 350 people and save taxpayers nearly $A30 million ($NZ31 million).
Labor opposed it in the previous parliament, saying it could have serious negative impacts in the rehabilitation of criminals in psychiatric confinement.
The other two measures are abolishing the National Health Performance Agency, which the government says has closed and just needs to be wiped from legislation, and making changes to appeal arrangements for veterans and military widows, which attracted bipartisan support in the previous parliament but didn't pass the Senate due to crossbench concerns.
The text of the bill, which includes $A6.1 billion of savings all up, says it is "part of a concerted strategy to demonstrate immediate and tangible progress towards a fiscal repair".
Prime Minister Malcolm Turnbull yesterday described repairing the buget as a "fundamental moral challenge".
Mr Burke scoffed at the comment.
"It's a bit much describing it as a moral challenge from a government that's tripled the deficit and added $100 billion to the net debt," he said.
Finance Minister Mathias Cormann called on Labor to support the savings measures so that the bill could clear the parliament "very swiftly".
"We can then get on and work our way through those issues that remain at levels of disagreement," he told reporters.
