21 November: Lodge and pay October monthly activity statement. 21 November: Due date for...
21 October: Lodge and pay September monthly activity statement. 28 October: Lodge and pay Q1,...
September 21: Lodge and pay August monthly activity statement. September 30: Lodge PAYG withholding payment summary...
August 11: Q4 (April–June) activity statements lodged electronically – final date for lodgement and payment....
July 1: Beginning of 2025-26 financial year. July 21: Lodgement and payment of June 2025...
June 5: Lodge 2024 tax returns for all entities that did not need to lodge...
15 May: Lodge 2024 tax returns for all entities that did not need to lodge...
21 April: Lodgement and payment of March 2025 monthly business activity statement 21 April:...
21 March : Lodgement and payment of February 2025 monthly business activity statement. 31...
Here a few important dates to pencil into your February calendar. February 21: Lodgement...
Here are a few dates to pencil in for the new year. January 21:...
December 1: Payment of income tax for medium and large taxpayers, super funds and companies...
Latest News
Payday Super: What Employers Need to Know Before 1 July 2026
From 1 July 2026, one of the most significant payroll compliance changes in recent years...
Federal Budget 2026 Explained: Tax, Property & Business Changes
Treasurer Jim Chalmers has delivered the Albanese government’s fifth Federal Budget, describing it as the...
Key Dates – March/April 2026
21 March: Lodge and pay February 2026 monthly business activity statement. 31 March : Lodge...
Selling a business in Australia
Selling a business in Australia is one of the most significant financial decisions an owner...
Buying an existing business in Australia
Buying an existing business in Australia can be an efficient and strategic path to ownership,...
Major changes announced to controversial super tax
Federal Treasurer Jim Chalmers has announced sweeping changes to the controversial Division 296 proposition. ...
Maintaining corporate compliance in Australia
Maintaining corporate compliance in Australia is a fundamental responsibility for every company director and business...
Key Dates – November 2025
21 November: Lodge and pay October monthly activity statement. 21 November: Due date for...
Payday Super: Deadline approaches for SMEs
The Federal Government’s long-awaited Payday Super reforms became official on November 4, following the Treasury...
Official Statement – New ATO correspondence system
Optima Partners has recently introduced a new system to manage ATO correspondence for our registered...
Perth Chartered Accountant | Tax Accountants CPA
