New Zealand's payroll regulatory environment is built around a strong employee protection framework, encompassing KiwiSaver retirement savings, the PAYE (Pay As You Earn) tax system, ACC (Accident Compensation Corporation) levies, and the Holidays Act 2003 — one of the most technically demanding leave compliance laws in the world. WorkWisely's New Zealand payroll module handles all these requirements with precision, keeping your payroll compliant and audit-ready.
New Zealand payroll obligations are governed by the Income Tax Act 2007 (PAYE), the KiwiSaver Act 2006, the Accident Compensation Act 2001 (ACC levies), the Holidays Act 2003, the Minimum Wage Act 1983, and the Employment Relations Act 2000. Inland Revenue (IR) is the primary regulator for PAYE and KiwiSaver, while WorkSafe and ACC govern workplace injury insurance.
KiwiSaver is New Zealand's voluntary (for individuals) but auto-enrolment retirement savings scheme. While employees can opt out within a specified window, employers must contribute to KiwiSaver for all eligible employees who remain enrolled.
WorkWisely automatically enrols new employees in KiwiSaver, manages the opt-out window, calculates both employee and employer contributions at the elected rates, computes Employer Superannuation Contribution Tax (ESCT) at the correct rate for each employee, and includes all KiwiSaver data in the monthly Employment Information (EI) return to Inland Revenue.
PAYE is the system by which employers deduct income tax and other deductions (student loans, child support, etc.) from employee wages and remit them to Inland Revenue. New Zealand PAYE is reported and paid through the payroll filing system (formerly EMS, now Employment Information/EI returns).
WorkWisely uses Payday Filing — NZ's mandatory real-time payroll reporting — and submits the Employment Information (EI) return to Inland Revenue on every payday. The system manages all tax codes, handles mid-year tax code changes, and processes student loan deductions (SL) and child support deductions (as directed by IR court orders). For non-resident employees, Non-Resident Withholding Tax (NRWT) is automatically applied.
The Accident Compensation Corporation (ACC) provides no-fault personal injury cover for all New Zealanders and eligible visitors. ACC is funded by three separate levies — the Earner's Levy (collected via PAYE from employees), the Work Levy (invoiced directly to employers based on industry risk), and the Motor Vehicle Levy (paid by vehicle owners). Levy rates are reviewed and set by Cabinet every three years, with the current levy period covering 2025/26 through 2027/28.
WorkWisely applies the current-year Earner's Levy rate and earnings cap automatically from 1 April each year. The levy is deducted from employee earnings as part of the PAYE process and included in the Payday Filing EI return submitted to Inland Revenue. When the maximum liable earnings cap is reached mid-year, WorkWisely automatically ceases the deduction for that employee for the remainder of the tax year. For employer Work Levy reconciliation, WorkWisely generates a payroll data export in the format required by ACC to verify and reconcile the annual Work Levy invoice against actual payroll.
The Holidays Act 2003 is arguably the most complex employment legislation from a payroll calculation perspective. It governs annual leave (4 weeks), public holidays, sick leave (10 days), bereavement leave, and family violence leave. The Act's unique calculation requirements — particularly for annual leave and alternative holidays — have caused widespread non-compliance across New Zealand employers, resulting in significant remediation costs.
WorkWisely's Holidays Act calculation engine has been purpose-built to handle the Act's complex requirements — including gross earnings calculations for AWE, ordinary weekly pay determination for irregular hours workers, ADP calculations, and the 'higher of' rule for annual leave. This is particularly important for employees with variable hours, shift work, or irregular earnings patterns.
Q: How does WorkWisely handle the Ordinary Weekly Pay (OWP) vs Average Weekly Earnings (AWE) comparison for annual leave?
A: WorkWisely automatically calculates both OWP (based on the employee's regular weekly pay at the time of leave) and AWE (gross earnings over the prior 52 weeks divided by 52) and applies the higher of the two rates. This is done dynamically for every leave payment, ensuring compliance with the Holidays Act's 'greater of' requirement.
Q: Does WorkWisely support Payday Filing with Inland Revenue?
A: Yes. WorkWisely transmits the Employment Information (EI) return directly to Inland Revenue via the myIR API on each payday. All PAYE, KiwiSaver, student loan, and child support deductions are reported in real time, eliminating the need for separate monthly returns.
Q: How does WorkWisely manage KiwiSaver contributions for employees who opt out?
A: WorkWisely manages the auto-enrolment and opt-out lifecycle. When an employee submits a KS10 opt-out form, the system records the opt-out date, stops deductions, and triggers a refund of contributions made during the opt-out period. Compulsory Employer Contributions (CEC) continue if required by the employment agreement.
Q: How does WorkWisely calculate ACC levy deductions for casual and variable-hours workers?
A: For casual and variable-hours workers, WorkWisely deducts the Earner's Levy (1.60 cents per dollar) on actual gross earnings each pay period, subject to the annual maximum earnings cap. The system correctly tracks cumulative earnings across the year and stops the levy deduction once the cap is reached.
Q: Can WorkWisely handle New Zealand payroll for expat employees seconded to NZ?
A: Yes. For inbound assignees, WorkWisely applies the correct tax code (typically ND or non-resident), handles tax treaty credits, manages split-payroll arrangements between the home and NZ employer, and processes required IR filing. Double Tax Agreement (DTA) country codes are maintained in the system for all NZ treaty partners.