Key point
For many self-lodgers, 31 October is the usual deadline. Registered tax agent programs can have later dates when eligibility requirements are met.
Before 31 October
Check your Income Statements, records and prior-year obligations early. Do not wait for the final day to resolve missing information.
If the date has passed
Arrange the outstanding return as soon as possible. The ATO considers circumstances when applying compliance action.
Before you apply
Check that your information covers the correct Australian income year. Keep source documents and do not enter TFNs, passport numbers or bank credentials in ordinary messages.
This guide provides general information only. Tax outcomes depend on individual circumstances and current law. Check official ATO guidance or obtain personal assistance before lodging.