August 2026 Tax Calendar Australia
The standalone calendar app is now the primary experience. This main-site monthly view remains available as a fallback during the transition.
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Key dates in August 2026
14 August 2026
PAYG withholding annual report due
Lodge PAYG withholding payment summary annual report.
28 August 2026
SGC statement and payment due for Q4 shortfall
If SG was late or underpaid for Apr-Jun quarter, lodge SGC statement and pay by this date.
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FAQ
What is the self-lodgment deadline?
For most individuals, the self-lodgment deadline is 31 October each year, with next business day treatment if needed.
Are these dates legal advice?
No. This calendar is informational only. Always confirm your exact obligation on the ATO website or with a registered tax agent.