If you are lodging a tax return as an individual or trust, the due date of any income tax payable will vary depending on:

• the original due date of your return, and
• the lodgement date of your return.

You can check the lodgement due date of your return via ATO Online Services.  Then, depending on when you actually lodge will determine the deadline for payment.

Click on the link below for a detailed outline of the deadlines for your individual situation.