How is payroll calculated in New Zealand? The answer is: by deducting PAYE tax, KiwiSaver contributions, ACC earner’s levy, and student loan repayments from an employee’s gross earnings to arrive at net pay. Getting this wrong carries real consequences. In 2023-24, the IRD closed 4,300 audits assessing $460 million in additional tax, with employer obligations listed as a specific enforcement focus area.
This guide covers every component of the calculation, including the April 2026 changes to KiwiSaver and ACC rates.
What Goes Into a New Zealand Payroll Calculation?
Every pay run starts with gross earnings and works down through mandatory deductions.
The core components are:
- Gross pay – total earnings before any deduction, including base salary, overtime, bonuses, and allowances
- PAYE tax – progressive income tax deducted at source under the Pay As You Earn (PAYE) system and remitted to IRD
- KiwiSaver – retirement savings deducted from gross pay at the employee’s chosen rate, with a mandatory employer contribution
- ACC earner’s levy – a flat levy funding New Zealand’s no-fault accident compensation scheme
- Student loan repayments – where applicable, deducted at a flat rate on income above the annual threshold
Net pay is what remains after all deductions are applied.
What Are New Zealand’s Current PAYE Tax Brackets?
New Zealand uses a progressive tax system. Only the income within each bracket is taxed at that rate, not total income.
The 2025-26 PAYE brackets (effective 1 April 2025, unchanged for 2026-27) are:
|
Annual Income (NZD) |
Tax Rate |
|
0 – $15,600 |
10.5% |
|
$15,601 – $53,500 |
17.5% |
|
$53,501 – $78,100 |
30% |
|
$78,101 – $180,000 |
33% |
|
$180,001 and over |
39% |
Source: Inland Revenue (IRD), 2025-26 tax year
There is no tax-free threshold in New Zealand. Every dollar of income is taxed.
PAYE is deducted based on each employee’s tax code, which they declare on an IR330 form. Using the wrong code leads to over- or under-payment, resolved at the IRD’s annual assessment after 31 March.
How Is KiwiSaver Calculated in 2026?
From 1 April 2026, the default minimum KiwiSaver contribution rate for both employees and employers increased from 3% to 3.5%.
Employees can elect higher rates of 4%, 6%, 8%, or 10%. Employers are not obligated to match anything above 3.5%.
Key KiwiSaver rules for employers:
- Employer contributions are taxed under the Employer Superannuation Contribution Tax (ESCT) framework
- ESCT rates range from 10.5% (income under NZD 16,800) to 33% (income above NZD 84,000)
- KiwiSaver deductions are remitted to IRD alongside PAYE each payday
New employees are automatically enrolled. They must actively opt out if they choose not to participate.
What Is the ACC Levy Rate for 2026?
The Accident Compensation Corporation (ACC) earner’s levy is collected through PAYE.
For the 2026-27 tax year, the levy rate is 1.75% on earnings up to NZD 156,641. No ACC levy applies on earnings above this cap.
This is an increase from 1.67% in 2025-26. Employers must update payroll systems to apply the correct rate for any pay period with a pay date on or after 1 April 2026.
Employees pay the earner’s levy. Employers also pay a separate Work Account levy on their annual payroll, set by industry risk classification.
How Are Student Loan Repayments Calculated?
Student loan deductions apply when an employee’s annual earnings exceed NZD 24,128 (2026-27 threshold).
The deduction rate is 12% on every dollar earned above that threshold. Employees with student loans use a tax code ending in “SL”, for example, M SL or ME SL.
Employers deduct and remit student loan repayments alongside PAYE. Failure to deduct correctly creates liability for the employer, not the employee.
How Is Holiday Pay Calculated in New Zealand?
Holiday pay calculation is one of the most misunderstood areas of New Zealand payroll and one of the most heavily audited.
Under the Holidays Act 2003, annual leave pay is the greater of:
- Ordinary Weekly Pay (OWP) at the time the holiday is taken, or
- Average Weekly Earnings (AWE) – calculated as 1/52 of the employee’s gross earnings over the 12 months prior to the last pay period before the holiday
Whichever is higher applies. Employers cannot choose the lower figure.
For public holiday pay, if an employee works on a public holiday that falls on a day they would ordinarily work, they are entitled to a minimum of time-and-a-half plus an alternative holiday.
2026 legislative update: The Employment Leave Bill passed its first reading in Parliament on 12 March 2026 and was referred to the Education and Workforce Committee, with the Committee due to report back by 13 July 2026.
If enacted, it will replace the Holidays Act 2003 and shift leave accrual to an hours-based system from day one of employment. A 24-month implementation period is planned after Royal Assent, meaning changes would not apply before approximately 2028-29. Employers should monitor the Committee’s progress, but no immediate payroll changes are required at this stage.
What Are the Payroll Reporting Obligations for NZ Employers?
Payday filing has been mandatory in New Zealand since April 2019. Employers must file PAYE information to IRD within two working days of each pay date.
|
Obligation |
Deadline |
Penalty for Non-Compliance |
|
Payday filing (PAYE + KiwiSaver) |
Within 2 working days of payday |
Late filing penalties from NZD 250 per return |
|
PAYE payment to IRD |
By the 20th of the following month (or twice monthly for larger employers) |
Penalties plus use-of-money interest |
|
Employee IR330 on file |
Before first pay run |
Non-declaration rate of 45% PAYE applies |
|
Payroll records retention |
Minimum 7 years |
IRD audit exposure, back-payment orders |
|
Leave records retention |
Minimum 6 years |
Personal grievance claims, compliance orders |
Source: IRD, Employment New Zealand
Employers running payroll across multiple countries need these obligations managed per jurisdiction. Businesses that handle payroll services in New Zealand, alongside other markets, commonly use managed payroll operations to maintain accuracy across different regulatory timelines.
How Procloz Manages Payroll Calculation in New Zealand
Procloz handles payroll execution for businesses operating in New Zealand, managing PAYE deductions, KiwiSaver contributions at the correct rates, ACC levy remittance, and payday filing obligations to IRD.
For companies hiring in New Zealand as part of a multi-country workforce, Procloz’s global payroll services manage statutory deductions and reporting requirements across jurisdictions, applying each country’s current rates without requiring internal payroll teams to track regulatory changes manually.
Contact us for assistance now.
Frequently Asked Questions: How Is Payroll Calculated in New Zealand
Q1: How is payroll calculated for a part-time employee in New Zealand?
Part-time payroll follows the same method as full-time. PAYE applies on actual earnings, KiwiSaver is deducted on gross pay, and ACC levy applies at 1.75% up to the annual earnings cap.
Q2: What is the KiwiSaver employer contribution rate in 2026?
From 1 April 2026, the minimum employer KiwiSaver contribution is 3.5% of the employee’s gross earnings. Employees may elect higher rates; employers are not required to match above 3.5%.
Q3: How often must employers file PAYE in New Zealand?
Employers must submit a payday filing to IRD within two working days of each payday. PAYE payments are due by the 20th of the following month for most employers, or twice monthly for larger ones.
Q4: What happens if a New Zealand employer uses the wrong PAYE tax rate?
Using the wrong tax code results in the employee being under- or over-taxed. IRD reconciles this at year-end. Persistent errors can trigger an IRD audit, especially where 45% non-declaration rates should have applied.
Q5: Does ACC levy apply to all earnings?
The ACC earner’s levy (1.75% from 1 April 2026) applies to eligible earnings up to NZD 156,641 per year. Income above this cap is not subject to the levy. Employers also pay a separate Work Account levy.
