Five-bracket PAYE. KiwiSaver. ACC. New Zealand payroll, solved.
New Zealand payroll is not a configuration exercise. It demands a live five-bracket PAYE engine with per-payday IRD filing, KiwiSaver auto-enrolment at 3.5% EE / 3.5% ER from April 2026, ACC earner levy at 1.75% capped at NZD 156,641, Employer Superannuation Contribution Tax tracked per employee, student loan deductions for SL-coded workers, and Holidays Act leave calculation logic that has cost New Zealand employers hundreds of millions in remediation. Most providers handle two of these correctly. Mercans handles all of them — on a single proprietary stack with no intermediaries.
native payroll
vs nearest peer
since inception
- PAYE — Band 1
- 10.5% on NZD 0–15,600
- PAYE — Band 2
- 17.5% on NZD 15,601–53,500
- PAYE — Band 3
- 30% on NZD 53,501–78,100
- PAYE — Band 4
- 33% on NZD 78,101–180,000
- PAYE — Band 5 (top rate)
- 39% on NZD 180,001+
- ACC Earner Levy
- 1.75% · cap NZD 156,641
- KiwiSaver Employee (default)
- 3.5% from 1 Apr 2026
- KiwiSaver Employer (min)
- 3.5% from 1 Apr 2026
- ESCT on Employer KiwiSaver
- 10.5%–39% per employee
- Student Loan Deduction
- 12% above NZD 24,128/yr
- Payday Filing Deadline
- 2 working days from payday
- Annual Leave Minimum
- 4 weeks after 12 months
- Sick Leave Entitlement
- 10 days per year
- Minimum Wage (Apr 2026)
- NZD 23.95/hr adult rate
- Public Holidays
- 11 national days
Getting New Zealand payroll “mostly right” is the most expensive mistake
New Zealand’s IRD doesn’t overlook payroll errors — it identifies them automatically through payday filing data matching. The Holidays Act 2003 has triggered hundreds of millions in remediation payments across the public and private sectors. Employment Relations Act contractor reclassification tests run retrospectively. Late payday filing generates automatic late-filing penalties and use-of-money interest.
Holidays Act leave calculation errors
The Holidays Act 2003 contains complex leave calculation rules that have caused systemic underpayment across New Zealand. Health New Zealand alone paid over NZD 308 million in remediation by December 2024. Intentional non-payment since March 2025 can constitute theft under the Crimes Act 1961.
KiwiSaver and ESCT mismanagement
Failing to enrol eligible employees, applying the wrong ESCT rate, or not processing the employer contribution correctly triggers IRD assessments and penalties. ESCT is per-employee and salary-band dependent — it cannot be applied as a single flat rate across the payroll.
Contractor misclassification (sham contracting)
Misclassifying employees as contractors to avoid PAYE, KiwiSaver, and ACC obligations is prosecuted under the Employment Relations Act. Fines typically start around NZD 30,000. The Employment Relations Amendment Bill 2025 introduces a Gateway Test but the existing multi-factor tests remain in force.
Late or incomplete payday filing
Employment information must reach IRD within 2 working days of payday for electronic filers. Late filings generate automatic penalties plus use-of-money interest on late tax payments. Repeated failures escalate to shortfall penalties of up to 150% of the unpaid tax.
The three types of providers who struggle with New Zealand
Global Aggregator Platforms
Aggregator platforms cannot handle New Zealand’s per-payday IRD filing within 2 working days, per-employee ESCT rate calculations, Holidays Act leave engine complexity, or ACC employer work-levy variance by industry — they pass through to local partners without direct IRD integration.
- ×No direct IRD payday filing integration
- ×ESCT per-employee logic absent
- ×Holidays Act calculation engine missing
Large Global Payroll Incumbents
Incumbents have New Zealand coverage — in name. Legacy architectures cannot adapt rapidly when KiwiSaver default rates change, ESCT thresholds are realigned, or the Employment Leave Act replaces the Holidays Act 2003.
- ×KiwiSaver rate changes require manual config
- ×ESCT bracket updates hardcoded
- ×Holidays Act remediation calculation unsupported
Local New Zealand Payroll Firms
Local firms know the market — but they can’t scale with you. No HRIS integration, no multi-country consolidation, no enterprise-grade data security certifications.
- ×No proprietary payroll technology
- ×No data security certifications
- ×No APAC multi-country consolidation
The only provider that closes every gap
Mercans is the only New Zealand payroll provider that combines a proprietary payroll technology stack, full-time in-country compliance teams, direct IRD payday filing integration, and enterprise-grade data security — simultaneously, on one contract, with no intermediaries.
The only engine built for New Zealand’s actual payroll architecture
G2N Nova™ natively models New Zealand’s five-bracket PAYE system, per-employee ESCT rate calculation, KiwiSaver auto-enrolment and contribution tracking, ACC earner levy withholding with the NZD 156,641 cap, student loan SLCIR/SLBOR deductions, and Holidays Act leave calculation logic — auto-generating EI payday filing submissions within the 2-working-day window.
Full-time New Zealand team — not a partner you phone when things break
Mercans employs full-time payroll and compliance professionals in New Zealand with active relationships with Inland Revenue, ACC, and the Ministry of Business, Innovation & Employment (MBIE). When KiwiSaver rates or ESCT thresholds change, our engine is updated within 72 hours.
The security posture multinationals require — and New Zealand’s Privacy Act 2020 now mandates
Mercans holds Binding Corporate Rules approval, ISO 27701, SOC 1 & 2, and ISO 27017/27018 — the only payroll provider in the APAC region with this complete certification stack. Zero breaches since inception.
Where Mercans wins on every New Zealand-specific capability
Each row is a New Zealand-specific payroll capability. Full = native in-platform, half = partial/manual workaround, empty = gap.
New Zealand Capability Coverage · 12 dimensions
IRD myIR · 2 working days
10.5%–39% progressive
EE 3.5% + ER 3.5% tracking
Salary band → 10.5%–39%
Greater-of leave pay test
1.75% · NZD 156,641 cap
12% above NZD 24,128/yr
IR330 + 45% fallback rate
Gateway Test · IR330C
Worked PHol premium + alt day
Every rate. Every cap. Every obligation.
New Zealand payroll operates on exact rates with hard per-payday deadlines. Mercans builds every figure below into G2N Nova™ and monitors them proactively.
New Zealand · Rate & Compliance Dashboard
Live 2025–26KiwiSaver Step-Up: 3% → 3.5% from 1 April 2026
The default employee and employer KiwiSaver contribution rates increase from 3% to 3.5% on 1 April 2026 under legislation already enacted. Employees who want to remain at 3% must apply for a temporary rate reduction between 3 and 12 months. A further step to 4% is legislated for 1 April 2028. Mercans’ G2N Nova™ tracks and applies each rate change on the effective date.
→ KiwiSaver rate step-up auto-applied in G2N Nova™Holidays Act Leave Pay — OWP vs AWE Test Is Mandatory
New Zealand law requires holiday pay to be calculated as the greater of ordinary weekly pay (OWP) or average weekly earnings (AWE) over the prior 52 weeks. For employees with variable pay, commissions, or irregular hours, AWE commonly exceeds OWP. Applying only OWP is the single most common Holidays Act breach.
→ OWP vs AWE comparison engine · Holidays Act compliantESCT — Per-Employee Rate, Not a Flat Charge
ESCT on employer KiwiSaver contributions must reflect each employee’s personal income band. The rate is set at the start of each tax year based on the employee’s prior-year income plus employer contributions, using five bands aligned with PAYE brackets. New 2025–26 thresholds allow more employees to remain in the 17.5% and 30% ESCT bands compared to prior years.
→ Per-employee ESCT bracket · annual reset in G2N Nova™Working Holiday Visa Workers Are Subject to Full PAYE Obligations
Working holiday visa (WHV) holders must obtain an IRD number and submit an IR330 tax code declaration. Employers must deduct PAYE at standard progressive rates (or 45% without an IRD number), and are responsible for KiwiSaver enrolment consideration and ACC earner levy withholding. No reduced payroll tax regime exists for WHV workers.
→ WHV worker PAYE and ACC levy compliance in G2N Nova™Run a New Zealand payroll. Right here, right now.
Switch employee type. Move the salary slider. Every number reflects the five-bracket PAYE split, KiwiSaver contributions, ACC earner levy with cap, ESCT on employer share, and true cost of employment — the same logic G2N Nova™ runs in production.
New Zealand Payroll Sample · Live
G2N Nova™ engineWhat only New Zealand experts know to handle
These are the compliance details that don’t appear in standard payroll setup guides — but appear in every IRD audit, Employment Court case, and Holidays Act remediation exercise we’ve encountered in New Zealand.
Five-Bracket PAYE With No Personal Allowance
New Zealand PAYE applies from the first dollar — there is no personal allowance or tax-free threshold. Five brackets from 10.5% to 39% apply progressively. The 39% top rate on income over NZD 180,000 was introduced in 2021 and remains in force for 2025–26.
KiwiSaver Auto-Enrolment With Rate Step-Up in April 2026
All new eligible employees must be auto-enrolled in KiwiSaver. From 1 April 2026, the default employee and employer contribution rates rise from 3% to 3.5%. Employees wishing to remain at 3% must apply for a temporary rate reduction. Non-enrolment of eligible employees triggers IRD shortfall penalties.
ESCT Rate Is Per-Employee and Salary-Band Dependent
Employer Superannuation Contribution Tax cannot be applied as a single flat rate. Each employee’s ESCT rate is determined by their prior-year salary plus employer contributions, with five brackets from 10.5% to 39%. The 2025–26 thresholds were updated from 1 April 2025.
Holidays Act Leave Engine Is the #1 Audit Risk
New Zealand’s Holidays Act 2003 requires leave pay to be calculated as the greater of ordinary weekly pay or average weekly earnings — a test that many payroll systems apply incorrectly for employees with variable pay. Systemic errors have cost employers over NZD 308 million in remediation payments.
Two Separate ACC Levies With Different Payers and Caps
The ACC earner levy (1.75% capped at NZD 156,641) is withheld from employee pay via PAYE. The ACC work levy is a separate employer cost, calculated on liable payroll and varying by industry classification — high-injury sectors pay materially more than office workers.
Student Loan Deductions Are Mandatory for SL-Coded Employees
Employees who declare a student loan on their IR330 use an SL tax code. Employers must deduct 12% of every dollar earned above the NZD 24,128 annual threshold (NZD 464/week). Failure to deduct when an SL code is declared triggers IRD assessments against the employer.
Payday Filing Window Is 2 Working Days, Not Monthly
New Zealand does not use monthly payroll filing. Employment information must be filed with IRD within 2 working days of each payday for electronic filers. Employers with annual PAYE and ESCT below NZD 50,000 may file within 10 working days but still pay deductions by the 20th of the following month.
Contractor Status Is Not Determined by Contract Wording Alone
New Zealand courts apply four overlapping tests when assessing worker classification. Sham contracting fines start at NZD 30,000. The Employment Relations Amendment Bill 2025 introduces a Gateway Test, but until enacted the existing tests remain and all misclassified contractors face retrospective PAYE, KiwiSaver, and ACC assessments.
One workforce. Two entirely different compliance tracks.
Permanent salaried employees on full PAYE vs. contractors and working holiday visa workers operating under distinct tax codes and KiwiSaver obligations requires two different compliance frameworks, two sets of leave entitlement calculations, and materially different termination rules.
Parallel Compliance Engines
PAYE, KiwiSaver, and ACC earner levy withheld on every pay run. Five-bracket PAYE, employee KiwiSaver at 3.5% (plus ESCT on employer share), and ACC earner levy at 1.75% apply to all eligible employees from Day 1.
Holidays Act leave calculation requires OWP vs AWE comparison. Annual leave pay must be the greater of ordinary weekly pay or 52-week average weekly earnings — a test that must be run individually for every employee with variable pay.
Student loan deductions mandatory for SL-coded employees. Any employee who indicates a student loan on their IR330 triggers 12% deductions on earnings above the weekly repayment threshold — no employer discretion.
EI filing due within 2 working days of each payday. Employment information must be submitted to IRD via payday filing per pay run — there is no monthly batch equivalent for electronic filers.
Fixed-term contracts require a genuine reason in writing. Fixed-term employment agreements must specify a genuine reason for the fixed term. Unjustified fixed-term use can result in the employment being treated as permanent.
Contractors use IR330C; wrong classification triggers full PAYE back-assessment. Genuine contractors on schedular payments submit an IR330C to set their withholding rate. Misclassified contractors are subject to retroactive PAYE, KiwiSaver, and ACC with penalties from NZD 30,000.
Gateway Test from Employment Relations Amendment Bill 2025 adds new criteria. A five-criterion Gateway Test is proposed to provide a definitive contractor classification. Until enacted, the existing four overlapping judicial tests apply and misclassification risk remains high.
Working holiday visa workers receive full PAYE treatment. WHV holders must have an IRD number and IR330 on file. Without an IRD number, the employer must deduct PAYE at 45%. KiwiSaver and ACC earner levy obligations apply identically to citizens.
No Holidays Act annual leave entitlement for genuine contractors. Correctly classified contractors have no statutory leave rights — but any leave provision inadvertently included in contract terms becomes enforceable.
Every obligation. Every authority. Mercans owns the calendar.
New Zealand compliance runs across Inland Revenue, ACC, MBIE, and Employment NZ on per-payday, monthly, and annual cadences, with event-triggered obligations for new hires, KiwiSaver opt-outs, and employment changes. Mercans’ managed payroll absorbs every filing as standard scope.
Employment Information (EI) Payday Filing
Employment information must be filed with IRD within 2 working days of each payday for electronic filers (within 10 days for small employers below NZD 50,000 PAYE + ESCT). The EI covers each employee’s gross earnings, PAYE, ACC earner levy, KiwiSaver, ESCT, and student loan deductions.
PAYE, KiwiSaver & ACC Remittance
Employers with annual PAYE + ESCT below NZD 500,000 remit deductions monthly by the 20th of the following month. Large employers (above NZD 500,000) remit twice monthly: pay periods 1–15 settled by the 20th of the same month; pay periods 16–end settled by the 5th of the following month.
PAYE Annual Reconciliation & IR3/IR4 Return
New Zealand’s tax year ends 31 March. Employers must complete their annual PAYE reconciliation, issue employee tax summaries, and file any required annual returns. The IRD may issue auto-issued assessments for employees via myIR; employers must ensure all EI filings are accurate and reconciled against year-end records.
KiwiSaver ESCT Rate Reset
At the start of each new tax year (1 April), each employee’s ESCT rate must be recalculated based on their prior-year total income plus employer contributions. Rates can move up or down between the 10.5% and 39% brackets. Applying a stale ESCT rate from the prior year generates an IRD shortfall.
New Employee IR330 & KiwiSaver Enrolment
Before the first pay run, new employees must submit an IR330 (or IR330C for contractors). Auto-enrolment into KiwiSaver applies to all eligible new employees aged 18–65 on their start date. Employers must contribute from Day 1 unless the employee opts out within the statutory 2–8 week window.
KiwiSaver Opt-Out Processing
Newly auto-enrolled employees may opt out of KiwiSaver from 2 to 8 weeks after their start date. Employers must process opt-out notices received from IRD and cease contributions from the next pay run. Contributions already made are refunded to the employee via IRD.
Termination PAYE & Final Leave Settlement
On termination, all outstanding PAYE, final period KiwiSaver contributions, ACC earner levy, and accrued but untaken annual leave must be calculated and paid in the final pay run. Holidays Act requires final leave pay at the greater-of OWP vs AWE. A termination EI filing is required on the same schedule as regular payday filing.
ACC Employer Work Levy Annual Reconciliation
ACC invoices employers annually for their work levy based on liable payroll reported in the prior year. Employers must report final liable payroll figures accurately, as the annual invoice is based on estimated earnings with a reconciliation against actuals. Industry classification errors can result in significant levy adjustments.
New Zealand is one market.
Mercans covers all of Asia-Pacific.
Mercans covers all major Asia-Pacific markets on a single platform with country-specific compliance engines running in parallel. One platform. One contract. One consolidated view.
covered
1 contract
consolidation
APAC
Every filing. Every format. Submission-ready.
Mercans generates the exact file types that Inland Revenue, ACC, KiwiSaver providers, and the Ministry of Business, Innovation & Employment expect to receive.
