1 December
- Pay income tax for taxable large/medium taxpayers, companies and super funds. Lodgment of return is due 15 January 2019.
- Pay income tax for the taxable head company of a consolidated group with a member deemed to be a large/medium taxpayer in the latest year lodged. Lodgment of return is due 15 January 2019.
- Pay income tax for companies and super funds when lodgment of the tax return was due 31 October 2018.
21 December
- Lodge and pay November 2018 monthly business activity statement.
NOTE:
- As some dates may vary, please ensure you contact the Australian Taxation Office to double check any dates in question.
- When the due date for lodgment or payment falls on a Saturday, Sunday, or public holiday, it may be done on the next business day.