A discussion is also expected on the pandemic leave payments, due to cease at the end of September, when Prime Minister Anthony Albanese hosts his state and territory counterparts in Sydney on Wednesday afternoon.
While the federal government will be responsive to the health advice, Australians should not expect the payments to go on forever, Treasurer Jim Chalmers said.
"The reality ... is that kind of support can't continue forever (and) it's also contingent on some of the other ways that we're responding to this health and economic challenge," he told reporters in Canberra on Wednesday.
"One of the issues at play is the length of the isolation period and, not wanting to pre-empt the discussion that will happen this afternoon, it's a relevant consideration as well."
NSW Premier Dominic Perrottet and Victorian Premier Daniel Andrews will call for a nationally consistent approach on isolation requirements.
"Instead of the six states and two territories going different ways we're trying to get everyone on the same page," Mr Albanese said on Tuesday.
But the prime minister acknowledged the decision on isolation requirements ultimately fell to premiers and chief ministers.
Mr Perrottet wants the isolation period reduced from seven to five days to help businesses struggling with workforce shortages.
But Health Services Union secretary Gerard Hayes said isolation requirements should be scrapped all together, and the government needs to get ahead of the curve so people can live with the virus rather than ignoring rules they see as an imposition.
He said it should be a "transparent, inclusive approach" which treats the virus like any other infectious disease.
Opposition Leader Peter Dutton said the nation is moving into a phase where there would be shorter isolation periods.
"The arrangements otherwise that were in place at the height of COVID will start to unwind, and I think that's what the community expects," he said on Tuesday.
Meanwhile, a new pandemic therapeutics centre will be set up in Melbourne after a record philanthropic donation from international businessman Geoffrey Cumming.
The $250 million donation will establish support researches creating therapeutics and vaccines for infectious diseases, Mr Andrews said.
LATEST 24-HOUR COVID-19 DATA:
Victoria: 2857 cases, 26 deaths, 333 in hospital with 20 in ICU
NSW: 5434 cases, 22 deaths, 1802 in hospital with 38 in ICU
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