21 April
Lodge and pay quarter 3, 2026–27 PAYG instalment activity statement for head companies of consolidated groups.
Lodge and pay March 2027 monthly business activity statement.
28 April
Lodge and pay quarter 3, 2026–27 activity statement if lodging by paper.
Pay quarter 3, 2026–27 instalment notice (Form R, S or T). Lodge the notice only if you are varying the instalment amount.
30 April
Lodge TFN report for closely held trusts if any beneficiary quoted their TFN to a trustee in quarter 3, 2026–27.
Lodge lost members report for the period 1 July 2025 to 31 December 2026.