KiwiSaver employer contributions: A complete guide for NZ small business owners
KiwiSaver employer contributions NZ rules changed in 2026, and here's a clear how-to for staying compliant.
Written by Naomi Lai— Small business & finance writer. Read Naomi's full bio
Published Saturday 3 October 2026
Table of contents
Key takeaways
- You must contribute at least 3.5% of an employee's gross pay to KiwiSaver, up from 3% since 1 April 2026, and this rises to 4% from 1 April 2028.
- You only contribute for employees who pay into KiwiSaver from their own wages and meet the age rules of 16 to 64.
- Employer contributions are taxed through ESCT, so the amount reaching the fund can be slightly less than the headline rate.
- Getting your deductions, contributions and payday filing right each pay run keeps you compliant with Inland Revenue.
What are KiwiSaver employer contributions?
KiwiSaver employer contributions NZ are payments you make into an eligible employee's KiwiSaver account on top of their normal pay. You work out a set percentage of their gross salary or wages and pay it into their retirement savings alongside the contribution they make from their own pay.
This is known as the compulsory employer contribution (CEC), because you're required to pay it for most employees who are saving through KiwiSaver. The one common exception is a total remuneration arrangement, where the contribution sits inside an agreed pay package rather than being added on top.
For a small team, this sits within the wider staff admin you already handle each pay cycle. Keeping an accurate view of your cash flow position helps you plan for these ongoing costs with confidence.
What is the current employer KiwiSaver contribution rate?
The minimum employer KiwiSaver contribution is 3.5% of an employee's gross salary or wages. This rate has applied since 1 April 2026, up from the previous 3%, and it's scheduled to rise again to 4% from 1 April 2028.
Your employees choose their own contribution rate from a set list. Understanding the KiwiSaver contribution rate options helps you set up each person's pay correctly. Employees can contribute at one of these rates:
- 3.5% (the default)
- 4%
- 6%
- 8%
- 10%
You can pay more than the 3.5% minimum if you choose, but you can't pay less for an eligible employee. Inland Revenue sets out the current rates and the upcoming changes on its guide to KiwiSaver changes.
Which employees do you need to contribute for?
Your KiwiSaver employer obligation applies to employees who contribute to KiwiSaver from their own pay and meet the age rules. You pay for employees aged 16 to 64 who are making their own contributions.
Contributions generally stop once an employee qualifies for NZ Super at age 65. From 1 April 2026, employer contributions were also extended to eligible 16- and 17-year-olds, so younger team members now count too.
A few points make it clearer who you contribute for:
- Contribute for employees who deduct KiwiSaver from their own wages.
- Cover eligible team members aged 16 to 64.
- Include eligible 16 and 17 year-olds, following the 2026 change.
- Stop contributions when an employee reaches NZ Super age.
How to set up KiwiSaver for a new employee
Getting employer KiwiSaver enrolment right from day one saves you rework later. Follow these steps when someone joins your team.
1. Check eligibility and auto-enrol where required
Confirm whether the new employee needs to be automatically enrolled. Auto-enrolment applies to new employees aged 18 to 65, while 16- and 17-year-olds can choose to opt in.
2. Give the employee their KiwiSaver forms
Hand each new starter the KiwiSaver information pack (KS3) and the deduction form (KS2). These explain how the scheme works and let the employee record their chosen contribution rate.
3. Start deductions from the first pay
Begin KiwiSaver deductions from the employee's first pay and apply their chosen rate. If they don't pick a rate, use the 3.5% default.
4. Handle any opt-outs within the 8-week window
An automatically enrolled employee can opt out between the end of week two and the end of week eight. If they opt out in that window, stop their deductions and follow the refund process through Inland Revenue.
What is employer superannuation contribution tax (ESCT)?
Employer superannuation contribution tax (ESCT) applies to the KiwiSaver contributions you pay for your employees. It's calculated using the employee's income band, so the rate varies from person to person.
ESCT explains why the amount reaching an employee's fund can be slightly less than the headline 3.5%. You pay ESCT on top of the contribution unless, by agreement, you and the employee treat the contribution as salary or wages taxed under PAYE instead. You'll find the ESCT rates and how they work in the IRD guide to employer contributions.
How to calculate and pay your employer contributions
Working out KiwiSaver with IRD each pay run comes down to a simple calculation, the ESCT deduction, and your payday filing. Follow these steps for each eligible employee.
1. Work out 3.5% of gross pay
Multiply the employee's gross salary or wages for the pay period by 3.5%. For an employee earning $1,000 gross in a pay period, your employer contribution works out at $35.
2. Apply ESCT to the contribution
Deduct employer superannuation contribution tax from the $35 based on the employee's income band. The remaining amount is what lands in their KiwiSaver fund.
3. Include contributions in your payday filing
Report the KiwiSaver deductions and employer contributions in your payday filing to Inland Revenue. Many small businesses do this as part of their regular pay run.
4. Pay Inland Revenue by the due date
Pay the deductions and contributions to Inland Revenue by your due date. Inland Revenue then passes the money to each employee's KiwiSaver provider.
Reliable payroll software can handle these steps as part of each pay run, from the calculation through to filing.
When you don't have to make employer contributions
You won't need to make employer contributions in a handful of specific situations. Knowing these cases helps you avoid overpaying or missing a required contribution.
You can pause or skip contributions in these circumstances:
- during an approved savings suspension taken by the employee
- when the employee gives you a non-deduction notice (KS51)
- once the employee is eligible for NZ Super, with limited exceptions
- under a total remuneration arrangement, where the contribution sits within the agreed package
Simplify KiwiSaver contributions with Xero
Running KiwiSaver by hand each pay cycle adds up to a lot of small calculations, and one slip can mean fixing filings later. Xero payroll works out each employee's deductions and your 3.5% employer contribution, applies ESCT, and includes everything in your payday filing to Inland Revenue.
That means less manual admin and more confidence that your contributions are correct and on time.
FAQs on KiwiSaver employer contributions
Here are quick answers to questions small business owners might ask about their KiwiSaver responsibilities.
How much do employers contribute to KiwiSaver in NZ?
You contribute a minimum of 3.5% of an eligible employee's gross salary or wages, rising to 4% from 1 April 2028. You can choose to pay more than the minimum.
Do employers have to match KiwiSaver contributions?
No, you don't have to match your employee's chosen rate. You pay the minimum 3.5% regardless of whether the employee contributes 3.5%, 4%, 6%, 8% or 10%.
Is the employer KiwiSaver contribution paid on top of salary?
Yes, in most cases you pay it on top of an employee's gross pay. The exception is a total remuneration arrangement, where the contribution sits within the agreed package.
Do you pay employer contributions for employees over 65?
Contributions generally stop once an employee becomes eligible for NZ Super at age 65, with limited exceptions. You don't have a compulsory contribution once that point is reached.
Do you pay ESCT on top of your KiwiSaver contributions?
Yes, employer superannuation contribution tax applies to the contributions you make, so a portion goes to Inland Revenue rather than the employee's fund. You can pay ESCT or, by agreement with the employee, treat the contribution as salary or wages taxed under PAYE.
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