Key Dates

5 September

  • Employer deductions payment due for 16 to 31 August for large employers

20 September

  • Employer deductions payment due for August for small to medium employers
  • Employer deductions payment due for 1-15 September for large employers

25 September

  • South Canterbury Anniversary Day

28 September

  • GST return and payment due for taxable period ending 31 August
  • AIM monthly due date

30 September

  • Overseas-based student loan repayment due