21 September
Activity statements
- August monthly activity statements – final date for lodgment and payment.
30 September
Single Touch Payroll (STP) closely-held payees
- End-of-year finalisation declaration through STP for closely held payees due for employers who have both closely held payees and arm's length employees.
Annual TFN withholding report
- Annual TFN withholding report for closely-held trusts where a trustee has been required to withhold amounts from payments to beneficiaries during the previous financial year – final date for lodgment.
Global and domestic minimum tax
- The Combined global and domestic minimum tax return and the GloBE Information Return are due 30 September 2026 for fiscal years ending on 31 March 2025.