KiwiSaver is a voluntary, work-based savings scheme designed to help employees save for retirement. While participation is voluntary for employees, employer obligations are mandatory once an employee is a KiwiSaver member or is automatically enrolled.
KiwiSaver compliance and errors can result in back-payments, penalties, and interest.
Employer KiwiSaver Obligations – The Basics
Automatic Enrolment
Employers must automatically enrol eligible new employees if they:
Are aged 18 to 64; and
Are employed on a permanent basis or for a contract of more than 28 days.
Employees may opt out in certain circumstances within the statutory timeframe, but deductions must begin from the first pay unless and until a valid opt-out notice takes effect.
Employee Contributions
Employees may contribute at the following rates:
3%, 4%, 6%, 8%, or 10% of gross salary or wages.
If no rate is chosen, the default rate is 3%.
Employers must:
Deduct employee contributions from gross pay.
Forward deductions to Inland Revenue with PAYE.
Start and stop deductions strictly in line with IRD notices (e.g. opt-outs or savings suspensions).
Compulsory Employer Contributions
Minimum Employer Contribution
Employers must contribute at least 3% of an employee’s gross salary or wages to KiwiSaver or a complying fund, unless an exemption applies.
Key points:
The 3% is in addition to gross pay (unless lawfully structured otherwise – more on this below).
Employer contributions are generally subject to Employer Superannuation Contribution Tax (ESCT).
Employers are not required to contribute for employees under 18.
Total KiwiSaver Remuneration Arrangements
A Total KiwiSaver Remuneration (‘TKSR’) arrangement allows an employer to agree that the employee’s total remuneration package includes the employer’s compulsory KiwiSaver contributions, rather than those contributions being paid on top of base salary or wages.
For a TKSR arrangement to be lawful:
It must be clearly and expressly agreed in writing, usually in the employment agreement,
The employee must receive at least the full equivalent of the minimum 3% employer contribution.
The arrangement cannot reduce the employee’s pay below minimum wage.
Where a compliant TKSR arrangement exists, the employer may deduct the employer KiwiSaver contribution from the agreed total remuneration and pay it to Inland Revenue as part of the employee’s KiwiSaver.
Poorly drafted or unclear TKSR clauses are a common compliance risk. If the agreement does not clearly establish a total remuneration structure, employers may be required to pay KiwiSaver on top of salary, potentially resulting in back-payments and penalties.
Common KiwiSaver Exemptions and Special Categories
Temporary employees: Employed for 28 days or less are not automatically enrolled.
Private domestic workers: Are generally excluded from KiwiSaver obligations.
Savings suspensions: May apply if approved by Inland Revenue – employers must stop deductions once notified.
KiwiSaver and Payroll Compliance
KiwiSaver errors often arise from:
Incorrect classification of employees.
Failure to start deductions from the first pay.
Not stopping deductions when required.
Incorrect ESCT calculations.
Failing to keep accurate KiwiSaver records.
Employers must retain records of:
KiwiSaver membership status.
Contribution rates.
Opt-outs, suspensions, and IRD notices.
Incoming KiwiSaver Contribution Rate Changes
The Government introduced budget changes 2025. The changes to KiwiSaver will:
Increase the default employer and employee KiwiSaver contribution rates from 3% to 3.5% from 1 April 2026, and then to 4% from 1 April 2028.
Allow members to choose to temporarily remain at the current 3% and still be matched at that rate by their Employer.
Extend KiwiSaver eligibility to 16-17 year-olds, allowing them to access both Employer and Government contributions.
Reduce the Government contribution rate from 50 cents for each dollar a member contributes to 25 cents from 1 July 2025. The maximum government contribution will reduce from $521.43 to $260.72 per year.
Limit eligibility for the annual government contribution to those earning $180,000 or less.
Key Risk Areas for Employers
Employers are commonly exposed to risk where they:
Fail to automatically enrol eligible new employees.
Do not commence deductions from the first pay.
Miss compulsory employer contributions.
Do not manage total remuneration arrangements correctly.
Incorrectly apply opt-outs or savings suspensions.
Miscalculate ESCT or KiwiSaver deductions.
Fail to correct errors within the allowable timeframe.
IRD can require back-dated contributions, impose penalties, and charge use-of-money interest.
Tips for Employers Managing KiwiSaver
Audit payroll systems regularly to ensure KiwiSaver settings are correct.
Train payroll and HR staff on KiwiSaver start/stop rules.
Use IRD forms and myIR processes consistently (e.g. IR346K).
Document KiwiSaver status for each employee clearly.
Act promptly on IRD notices for opt-outs and suspensions.
Communicate clearly with employees about KiwiSaver deductions and employer contributions.
If in doubt, seek professional KiwiSaver related advice from a professional advisor or accountant that is familiar with the KiwiSaver Act 2006.
Employer Takeaway
KiwiSaver compliance is not optional once an employee is enrolled or opts in. Employers who understand their obligations, maintain accurate payroll systems, and follow IRD guidance closely can significantly reduce compliance risk. Regular review of KiwiSaver processes is essential, particularly as workforce arrangements and government policy evolve.
Compliance Warning
Total KiwiSaver Remuneration arrangements are a risk and compliance area for employers, particularly if not drafted and applied correctly. If an employment agreement does not clearly and expressly state that the employee’s remuneration is inclusive of the employer’s KiwiSaver contribution, the legal claims can be pursued for the employer’s non-compliance, including back-payments and interest.
Common compliance failures include unclear contract wording, applying TKSR arrangements without written employee agreement, reducing pay below minimum wage, etc. Employers should ensure all TKSR clauses are transparent, documented in writing, and regularly reviewed, particularly following pay increases or role changes.
If there is any ambiguity, the risk will usually sit with the employer. Clear drafting and consistent payroll application are essential to avoid costly KiwiSaver underpayment claims.
This article is provided for general information only and does not replace professional advice. Employers should seek advice specific to their circumstances from Employer Pro, or specialist who is familiar with KiwiSaver obligations, if in doubt on their legal obligations associated with managing KiwiSaver related issues. Employer Pro has a range of employer focused resources and services available through our competitive Employer Protection Packages.
Employer Pro Limited – Empowering Employers Through Effective People Solutions
