Corporate tax in Australia, explained against the Australian Taxation Office (ATO): the headline rate, how taxable profit is calculated, filing and payment
What a company owes in Australia depends on how its tax authority defines profit, residence and reliefs.
A company needs an Australian Company Number from ASIC and, for most tax dealings, an ABN from the ATO. Tax here is administered by the Australian Taxation Office (ATO), and the guides below walk through the headline rate, how taxable profit is calculated, filing and payment deadlines, and the reliefs a small company can claim for Australia specifically.