The announcement was made by Premier Peter Gutwein following Friday's national cabinet meeting.

Here, Prime Minister Scott Morrison confirmed the federal government was leaning heavily towards a proposal that would leave it up to states and territories to decide.

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Mr Gutwein said subject to advice, he expected Tasmania would introduce mandatory vaccinations for aged care workers.

"There was a discussion around mandating vaccinations for all aged care workers and this has been referred to AHPP [Australian Health Protection Principal Committee] for further advice," he said.

"I support the AHPPC being requested to provide both further advice, subject to that advice, I expect that we will introduce mandatory vaccinations for aged care workers, once a national timeline has been established."

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To date, about 70 per cent of Tasmania's aged care workers are estimated to have received at least one dose of the vaccine.

Mr Gutwein said if vaccinations did become mandatory for aged care workers, they would be subject to normal medical exemptions.

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"The aged care sector is obviously well versed with vaccinations in terms of flu vaccinations already, in terms of their workforce," he said.

"Here in Tasmania we have stepped in to help vaccinate our aged care residents and staff, but there is still more work to do."

There has been increased scrutiny around the Commonwealth's response to the Melbourne outbreak.

Rules banning workers from doing shifts across multiple nursing homes only came into place last week because the federal government's hotspot threshold was not met.

On Friday State Health Commander Kathrine Morgan-Wicks said it was estimated about 70 per cent of Tasmania's aged care workers had received at least one dose of the vaccine so far.

She also confirmed that from June 8, all Tasmanians over 40 would be eligible for a COVID vaccine, with national cabinet agreeing to simplify the roll-our, bringing forward the 40 to 49-year-old cohort.

In Tasmania this represents about 70,000 additional people, with vaccinations available through GPs, respiratory clinics or state community clinics.

More than 23,000 Tasmanians are now fully vaccinated against COVID-19.

An additional 100,000 are also expected to receive their second dose of AstraZeneca in the coming weeks, as the first 12-week cycle of the roll-out comes around.

As authorities continue to monitor Victorian outbreak, Ms Morgan-Wicks said getting a vaccination had never been more important.

"The risk of an outbreak in Tasmania remains real," she said.

"If you are waiting for any reason, now is the time to come forward if you have not had your vaccination.

"In particular I call upon our aged care and disability care workers to come forward, so we can prioritise your vaccination."

In light of disaster relief payment arrangements put in place for Victoria, Mr Gutwein also confirmed Tasmania had agreed to a program that would see the Commonwealth take responsibility for income supports, and the state government for business - if another outbreak ever occurred in the state.

"This is largely in line with the way we managed in terms of the first lockdowns we saw early last year, where Commonwealth managed income supports and we managed business support packages," he said.

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