31 March 2025

• 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.
• 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.
• 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.

21 April 2025

• Lodge and pay quarter 3, 2024–25 PAYG instalment activity statement for head companies of consolidated groups.
• Lodge and pay March 2024 monthly business activity statement.

28 April 2025

• Lodge and pay quarter 3, 2024–25 activity statement if electing to receive and lodge by paper and not an active STP reporter.