11 September, 2025
September 21: Lodge and pay August monthly activity statement.
September 30: 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.
September 30: Lodge Annual TFN withholding report 2025 if a trustee of a closely held trust has been required to withhold amounts from payments to beneficiaries.