21 March
Lodge and pay February 2026 monthly business activity statement.
31 March
Lodge tax return for companies and super funds with total income of more than $2 million in the latest year lodged (excluding large and medium taxpayers), unless the return was due earlier.
Payment for companies and super funds in this category is also due by this date.
Lodge tax return for the head company of a consolidated group (excluding large and medium), with a member who had a total income in excess of $2 million in their latest year lodged, unless the return was due earlier.
Payment for companies in this category is also due by this date.
Lodge tax return for individuals and trusts whose latest return resulted in a tax liability of $20,000 or more, excluding large and medium trusts.
Payment for individuals and trusts in this category is due as advised on their notice of assessment.
