The Australian federal government will make both PCR and rapid antigen tests tax deductible and fringe benefit tax-free when used for business purposes.

Treasurer Josh Frydenberg stated that the move is intended to bring the cost of tests in line with other workplace expenses, and will apply to the 2021-2022 financial year, backdated to July first. 

Australians taxed at 32.5% will be refunded roughly $6.50 for each $20 pack of two rapid antigen tests, while small businesses will reduce their fringe benefit tax liability by about $20 for the same.

Source: https://www.abc.net.au/news/2022-02-06/covid-tests-to-be-tax-deductible-in-australia/100808996