The prime minister has baulked at giving Queenslanders the same hardship assistance payment offered in NSW, saying the flood-hit regions were "very different".
But Scott Morrison says the Queensland government's request for the Commonwealth to jointly fund a $771 million recovery package is being considered.
The Queensland government is pushing for the same hardship payments offered by the federal government to people in northern NSW after flooding devastated the state's southeast.
There are currently thousands of dollars more available to NSW victims than Queenslanders after a record flood inundated the Northern Rivers region.
An extra $742 million in joint federal-NSW flood recovery funding was also announced for the region last week, pushing the total commonwealth and state package to $1.7 billion.
Asked if hardship payments would be increased to bring Queensland in line with NSW victims, Mr Morrison said in Cairns on Tuesday: "In NSW the flood experience is very different.
"We are talking about a one in 500-year flood in northern NSW."
But he did not rule out the jointly funded $771 million package under national disaster recovery arrangements proposed by the Queensland government just days ago.
Up to 500 flood-hit Queenslanders will be able to access a home buyback scheme under the proposal.
It includes $275 million to retrofit 5500 homes, $100 million to elevate 1000 homes and a $350 million residential buyback program.
The Commonwealth has already announced a $558.5 million financial support package jointly funded with the Queensland government for the southeast.
"We are considering the proposal given to us by the Queensland government on the weekend. That is going through its normal process," Mr Morrison said.
"The Commonwealth ... has already put cash in the pockets of those who been impacted by the floods and frankly the Commonwealth is the only one who has done that.
"(Queensland) already have over half a billion dollars that we have agreed to pay half of and I want to see that support getting out there.
"That should be happening now. There should be no delay."
The prime minister said the Commonwealth were also looking at longer-term measures including ongoing flood mitigation, claiming the Queensland government could do more to support them.
"Because dealing with climate change isn't just about getting emissions down," Mr Morrison said.
"It is also about climate resilience and about climate adaptation and that means that you build the dams.
"We have been seeking to build more dams in Queensland for many years, but we have been frustrated day after day.
"I am hoping that it will change and we will receive great support from the Queensland government to support our dam projects ... that will deal with important issues of managing floods and at the same time open up major agriculture opportunities right across Queensland."
