The Turnbull government's "No Jab, No Pay' policy has helped stamp out diseases not seen in playgrounds for years, Social Services Minister Christian Porter says.
The policy has prompted more than 5700 parents who had previously refused to immunise their babies to get them vaccinated and secure their childcare payments since the campaign started in January.
More than 148,000 children who were not up to date with their immunisations are also now meeting the requirements.
"It means that all parents can be absolutely secure ... the government has enacted a policy that immunisation is up for things like whooping cough, polio so that kids are protected in child care," Mr Porter told ABC radio on Sunday.
Since the start of the policy the Australian Childhood Immunisation Register rates have increased for one, two and five year olds.
One and five year old coverage rates have now reached 93 per cent for the first time.
Under the policy, parents are required to ensure that their children meet the immunisation requirements to be eligible for and to continue receiving child care benefit, child care rebate and the family tax benefit part A supplement payment.
