Casual employment creates specific complications for KiwiSaver. Whether you’re a casual worker wondering about your entitlements, or an employer managing casual staff, here’s how the rules apply.
Does KiwiSaver Apply to Casual Employees?
Yes — in most cases. KiwiSaver auto-enrolment applies to all new employees starting employment, including casual employees who are:
- New Zealand citizens or permanent residents
- Aged 18–65
- Starting a new employment relationship (even if casual)
There is no exemption for casual employees from the general KiwiSaver rules.
What Is a Casual Employee?
A casual employee is someone engaged on an as-needed basis with no guaranteed hours. This is common in:
- Hospitality and retail
- Construction and trades
- Healthcare (agency nurses, casual support workers)
- Agriculture and seasonal work
- Education (relief teachers, casual tutors)
Casual workers may be paid by the hour or by the shift, and may work irregular hours across multiple employers.
Auto-Enrolment for Casual Workers
When a casual employee starts work for a new employer, the employer must treat them as a new employee for KiwiSaver purposes. If the worker has never been enrolled before, they’ll be automatically enrolled.
However: There is a nuance around continuous employment. If the casual arrangement is genuinely intermittent (the person does one shift for an employer, leaves, returns months later), each engagement may technically be a new employment relationship triggering re-enrolment.
In practice, many casual workers across multiple employers end up in a default KiwiSaver fund through auto-enrolment.
Employer Contribution Obligations for Casual Workers
Employers must make the minimum 3% employer contribution for any eligible casual employee who is making KiwiSaver contributions. There is no exemption based on employment type.
This applies to:
- Any casual employee who hasn’t opted out within the 2–8 week window
- Any casual employee who has voluntarily joined KiwiSaver
Practical issue: Employers sometimes incorrectly treat casual workers as exempt from employer contributions. If you’re a casual employee and believe your employer isn’t making contributions, check myIR and contact IRD if needed.
Opt-Out for Casual Workers
The standard opt-out process applies to casual employees. If a casual worker doesn’t want to join KiwiSaver, they can opt out using a KS10 form within 2–8 weeks of starting each new employment relationship.
For workers who regularly move between casual roles with different employers, this can become repetitive — they’ll be auto-enrolled with each new employer and need to opt out each time.
Multiple Employers
Casual workers may work for multiple employers simultaneously. KiwiSaver contributions are deducted by each employer on the income earned with that employer. You can only be a member of one KiwiSaver scheme — all contributions from all employers flow to the same provider.
See KiwiSaver with multiple employers for more detail.
Voluntary Contributions for Casual Workers
Because casual employment often means irregular pay and irregular payroll contributions, voluntary contributions are particularly useful for:
- Reaching the MTC threshold ($1,042.86/year) when payroll contributions fall short
- Building savings consistently between work periods
See voluntary KiwiSaver contributions.
Self-Employed vs Casual
There is an important distinction:
- Casual employees are employed under an employment relationship — employer contributions and auto-enrolment apply
- Independent contractors (self-employed, sole traders) are not employees — no employer contributions, no auto-enrolment, voluntary contributions only
If you’re uncertain whether your arrangement is employment or contracting, the Employment Relations Authority applies a multi-factor test. The nature of the arrangement (not just what the contract says) determines the classification.