It comes as medical experts have slammed government inaction on securing enough tests in order to meet demand.
While the prime minister has previously rebuffed calls to make the tests free for everyone, a lack of tests and large queues at PCR testing areas have contributed to growing criticism.
Omicron cases continue to surge across the country, with Australia on Monday recording its largest amount of daily COVID-19 cases since the pandemic began.
Australian Medical Association vice president Dr Chris Moy said there didn't appear to be a plan from the government surrounding rapid tests.
"There is an inability to supply at the critical moment and there is a lack of equity of access and it is costing so much," Dr Moy told ABC Radio on Tuesday.
"The case numbers from Omicron is way outside those of Delta ... these numbers are way outside of what people were expecting and this day was always going to come.
"We need rapid antigen tests in play and in people's hands."
Dr Moy said a lack of available rapid tests had hampered people's personal responsibility during the pandemic to help keep others safe.
Shadow Treasurer Jim Chalmers said the lack of availability surrounding the rapid tests was a major concern, along with reports of retail outlets undertaking price gouging.
"How many people have to go undiagnosed or get ripped off," he told the Nine Network.
"We can't have a situation where people at their most vulnerable and their most contagious are wandering around shopping centres looking for tests that don't exist."
The rapid test shortage coincides with the expansion of the country's booster program.
From Tuesday, an extra four million people will become eligible for the booster shot.
The head of Australia's vaccine rollout, Lieutenant-General John Frewen, said 60 per cent of people already eligible for the third dose have received it.
"We have got supply and heading around the country, bookings have been made at a great pace and we're encouraged by that," he told the Seven Network.
"We've had 2.5 million people come forward for their booster ... given it's Christmas and New Year, I think that's encouraging."
Currently, there is a four-month gap after the second vaccine dose before people can get the booster shot.
That time frame will shorten to three months at the end of January.
Children between five and 11-years-old are also set to get the vaccine from January 10.
Dr Moy said the rollout of the boosters and the start of the child vaccines would be one of the most challenging aspects of the vaccine effort.
"We are about to undertake an intense lot of vaccinations in the next few months ... and there is an exhausted workforce," he said.
"It's a tight time for everyone at the moment."
There were 20,794 new cases and four deaths in NSW on Monday.
Victoria reached a daily record of 8577 infections and a further three deaths
There was a record 4249 cases in Queensland, with the sudden death at home of a man in his late 30s who had "probable COVID-19", according to the state's chief health officer.
Tasmania registered a record of 466 new cases, as did the ACT with 516.
There were 2552 cases in South Australia, 58 in the Northern Territory and two in Western Australia.
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