Tax return due dates when you use a registered tax agent
Why returns lodged through a registered tax agent can be due after 31 October, and why you need to contact an agent before 31 October to be on their lodgment program.
Checked against official sources on 21 Oct 2026
The 31 October deadline
The ATO’s usual deadline for individual tax returns is 31 October. The ATO says most registered tax agents have a special lodgment program and can lodge returns for their clients after that date.
Contact an agent before 31 October
If you are using a tax agent for the first time, or changing agents, the ATO says to contact them before 31 October to be part of their lodgment program. Your due date then depends on your situation and when you engaged the agent, so ask the agent.
Only a registered agent can charge a fee
The ATO says registered tax agents are the only people who can charge a fee to prepare and lodge your tax return. Tax agents must be registered with the Tax Practitioners Board (TPB). Check a name or registration number with our tax agent check and confirm on the TPB register.
Behind on returns?
A tax agent can also prepare and lodge returns for earlier years. The ATO says getting up to date may help you avoid interest on tax debts and late lodgment penalties.
Questions
When is my tax return due if I use a tax agent?
It depends on your situation and when you engage the agent. Most registered tax agents have a lodgment program that allows lodgment after 31 October, but you need to contact them before 31 October.
Who can charge a fee to prepare my tax return?
Only a tax agent registered with the Tax Practitioners Board, according to the ATO.
Can a tax agent lodge returns for earlier years?
Yes. The ATO says your tax agent can prepare and lodge prior year tax returns.