Legislation slashing the cost of child care for more than one million families has been introduced to parliament.
The bill, introduced by Education Minister Jason Clare on Tuesday, would see childcare costs reduced for more than 95 per cent of eligible families.
Under the new laws, childcare expenses would be slashed for 1.26 million families with children in care.
It's estimated a family on the median combined income of $120,000 a year with one child in care would save $17,800 in the first year.
Households with a combined income of $75,000 would get a 90 per cent subsidy, while those earning $500,000 a year would receive a seven per cent discount.
Families with a total income of $530,000 or above will not be eligible for any subsidy.
The legislation is expected to come into effect from the beginning of July next year.
Mr Clare said the childcare reform did not just lead to education reform, but also economic reform.
"If we make childcare cheaper, it will make it easier for lots of women to work more paid hours and more paid days," he told parliament.
"That means they earn more now and have more superannuation when they retire."
Lowering the cost of childcare was one of the government's key campaign promises in the last election.
The legislation would also require all large providers to publicly report revenue and profits.
Early Childhood Minister Anne Aly said the childcare reforms would play a key role in the development of young children.
"These reforms are not just about affordability. They are about our most precious assets, our children, and providing our children with the care and education that they need in formative years to set them up for life," she told parliament
Childhood education advocacy group Thrive by Five have welcomed the introduction of the legislation.
Its director Jay Weatherill said the laws would go a long way to address out-of-pocket costs for families.
"Making childcare more affordable will make it easier for parents to work and build a career, as well as alleviating cost of living pressures on household budgets," he said.
"Young children who have the opportunity to attend high quality early learning are shown to be healthier, better educated and more productive over their lifetimes."
The opposition, however, have criticsed parts of the bill, saying the measures would only benefit high-income earners.
As part of the bill, Indigenous Australian families would receive extra support to access early childhood education.
Indigenous families would be able to receive a base level of 36 subsidised hours per fortnight under the proposal.
Mr Clare said Treasury estimated the reform would boost the workforce by the equivalent of up to 37,000 skilled workers in 2023/24.
"A key part of this is reframing the national conversation about childcare, recognising its powers and its value as an economic reform and investment that benefits two generations of Australians simultaneously," he said.
"Early education (is) for a great start in life, flexible support for modern families and a multi-billion dollar boost to productivity and participation without adding to inflation."