Resources
Important Dates
20 April 2026 - Employer Deductions
Employer deductions payment due for March for small to medium employers.
Employer deductions payment due for 1 to 15 April for large employers.
5 May 2026 - Employer Deductions
Employer deductions payment due for 16 to 30 April for large employers.
7 May 2026 - GST - Provisional Tax - Student Loan Repayments
Your GST return and payment is due for the taxable period ending 31 March.
Interim student loan repayments are due. They count towards your end-of-year repayment obligation.
Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
AIM instalments are due if you have a March balance date.
20 May2026 — Employer Deductions
Employer deductions payment due for April for small to medium employers.
Employer deductions payment due for 1 to 15 May for large employers.
28 May 2026 — GST - AIM
Your GST return and payment is due for the taxable period ending 30 April.
AIM instalments are due if you file GST monthly and have a March balance date.
2 June 2026 - FBT
Your FBT quarterly return and payment are due for the quarter ending 31 March if you have a March balance date.
Your FBT annual return and payment are due if you file FBT annually.
5 June 2026 - Employer Deductions
Employer deductions payment due for 16 to 31 May for large employers.
22 June 2026 - Employer Deductions
Employer deductions payment due for 1 to 15 June for large employers.
Employer deductions payment due for May for small to medium employers.
29 June 2026 - AIM - Provisional Tax
AIM instalments are due if you have a March balance date.
Provisional tax payments are due if you have a March balance date and use the ratio option.
7 July 2026 - Employer Deductions
Employer deductions payment due for 16 to 30 June for large employers.
20 July 2026 — Employer Deductions - FBT - Employer Deductions
Your FBT quarterly return and payment are due for the period ending 30 June if you have a March balance date.
Employer deductions payment due for June for small to medium employers.
Employer deductions payment due for 1 to 15 July for large employers.
28 July 2026 - AIM - GST
AIM instalments are due if you file GST monthly and have a March balance date.
Your GST return and payment is due for the taxable period ending 30 June.