21 September
Lodge and pay August 2023 monthly business activity statement.
30 September
Lodge PAYG withholding payment summary annual report if prepared by a BAS agent or tax agent excluding large withholders whose annual withholding is greater than $1 million.
Lodge Annual TFN withholding report 2023 if a trustee of a closely held trust has been required to withhold amounts from payments to beneficiaries.
Information for registered agents about preparing and lodging tax statements and returns due in September 2023.