These extracts are directly from the Australian Government Website:
Do I have to get the COVID-19 vaccine?
The COVID-19 vaccine will be voluntary and free. As safe and effective vaccines become available the Government will vaccinate as many Australians as possible for COVID-19. If you choose not to have a COVID-19 vaccine your eligibility for Government payments won’t be affected.
Do I need to provide consent for a COVID-19 vaccine?
Providing informed consent is required before getting each dose of the COVID-19 vaccine. Written consent is not mandatory and consent may be given verbally. Vaccination providers may ask for written consent in some settings according to their normal practices. The Australian Technical Advisory Group on Immunisation has developed resources for patients and providers to help with providing informed consent to get a COVID-19 vaccination. This includes an optional consent form.
It is not mandatory and individuals may choose not to vaccinate!
Federal Law overrides state law. Safe Work must abide by these. Please refer your employer to page 6 from the below PDF link.
The Australian Governments own Document – Download Here