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Self-Preparers

The general deadline for the lodgement of self-prepared individual, partnership and trust income tax returns is 31 October.

The timing of lodgements and tax payments for other self-prepared entities with both default and no-default status are scheduled here.

If an extension of time is needed to lodge a tax return, the Tax Office should be contacted before the due date with the reasons. If granted, an extension will avoid late lodgement penalties.

Appointing a Tax Agent - Deadlines

Tax Agents automatically have an extension of time to lodge tax returns, according to a progressive lodgement program.

To be added to a tax agent's program for the first time, clients are advised to contact their agent before 31 October. Clients without an agent in the previous year must be notified to the Tax Office by 31 October, or if transferring from another agent, by 31 December.

When a due date falls on a Saturday, Sunday or public holiday, lodgement or payment can be made on the following business day without penalty.(Ref) 

ATO Tax Calculators

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