Tax Filing Deadline 2024 Australia Time. For the tax year in australia, business owners file their income tax returns between 1 july to 31 october unless they’re registered with a tax agent. The tax return deadline if you’re lodging your tax return yourself is october 31, 2024 (read our comparison on lodging yourself.

The tax return deadline if you’re lodging your tax return yourself is october 31, 2024 (read our comparison on lodging yourself. The australian financial year runs from july 1, 2023, to june 30, 2024.