In a joint statement released by Defence Minister Richard Marles and Aged Care Minister Anika Wells, they confirmed the assistance will not be extended beyond Friday with the winter peak of the coronavirus over.
"We have left no stone unturned tackling the pandemic and supporting the aged care sector throughout this winter," Ms Wells said.
Mr Marles, who is also the deputy prime minister, said the ADF's resources had to be used for other priority areas.
The armed forces were brought in at the start of the pandemic as a surge workforce to help manage outbreaks in aged care homes.
More than 80 per cent of eligible residents have received a fourth dose of the vaccine, the statement says.
Meanwhile, scrapping isolation requirements for COVID-positive patients and boosting hospital funding will be high on the agenda for a meeting between the prime minister and his state and territory counterparts.
Anthony Albanese will host state and territory leaders at parliament house in Canberra on Friday, as pressure builds from business to further ease the five-day isolation period.
NSW Premier Dominic Perrottet is calling for mandatory isolation to be scrapped, saying Australians need to take personal responsibility for their actions.
"We need to get to the point where we move away from public health orders," he said.
"It's always a balance between the public health, broader health issues like mental health, social wellbeing and economic and financial issues facing people across our state."
Mr Albanese has consistently said national consensus is needed for any changes, as happened when leaders decided to cut the isolation period from seven to five days.
The future of isolation payments would then need to be nutted out, with Mr Albanese saying they would remain available as long as isolation is mandatory.
Asked about a reported push by the states for more public hospital funding, Health Minister Mark Butler said the federal government had already extended pandemic support, which is due to expire on Friday.
This involved allocating an extra $760 million to the state hospital system until the end of the year.
National cabinet, which will also receive advice on flood risks and emergency planning, will receive a briefing from the chief medical officer as the weekly COVID-19 figures drop.
It comes after the Therapeutic Goods Administration granted provisional approval for a Pfizer COVID-19 booster for children aged between six months and five years.
The medical regulator last week also provided provisional approval to Pfizer's booster for children aged between five and 11.Â
The latest weekly COVID-19 data will also be released by states and territories on Friday.
There were almost 45,000 infections recorded last week, with more than 200 deaths.
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