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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.

Calculators

Kiwisaver Employer Deductions Calculator

Quick Retirement Calculator

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