Tax Deadline October 2025. The australian taxation office is warning taxpayers that they must have their own income tax returns submitted by the october 31 deadline to avoid potential late lodgement fees. If you need more time, you can request an.

The general deadline for lodging your tax return in australia is 31 october following the end of the financial year. The australian taxation office is warning taxpayers that they must have their own income tax returns submitted by the october 31 deadline to avoid potential late lodgement fees.