How to Enrol in KiwiSaver NZ — Step-by-Step Guide 2026 | MoneyBalance

Joining KiwiSaver is one of the best financial decisions you can make in New Zealand — but the enrolment process confuses many people. There are multiple ways to join, different rules for employees vs self-employed, and important choices to make about your provider and contribution rate.

This guide covers every enrolment pathway with step-by-step instructions.

Who Can Join KiwiSaver?

KiwiSaver is open to all New Zealand citizens and residents who are ordinarily resident in New Zealand. There is no minimum age — parents can enrol newborns. The upper age limit for compulsory deductions is 65, but you can remain in KiwiSaver (and continue contributing voluntarily) indefinitely.

Eligibility	Requirement
Citizenship/residency	NZ citizen or permanent resident ordinarily resident in NZ
Age	Any age (including children)
Employment	Not required — self-employed and beneficiaries can join
IRD number	Required for enrolment

Method 1: Auto-Enrolment Through a New Employer (Most Common)

If you start a new job in New Zealand, your employer is legally required to automatically enrol you in KiwiSaver — unless you already belong to a scheme or are exempt.

How auto-enrolment works

You start a new job
Your employer gives you a KiwiSaver information pack (KS3 form)
Your employer enrols you with IRD using a KS1 form
IRD assigns you to a default provider if you don’t choose your own
Contributions begin from your first pay at the default rate of 3% of gross salary
You have 8 weeks from your start date to opt out if you decide KiwiSaver isn’t right for you (use the KS10 form)

Default providers (2026)

If you don’t choose a provider, IRD assigns you to one of the six government-selected default providers on a rotating basis:

BNZ
Booster
Generate
Milford
Simplicity
SuperLife

These six passed the 2021 government quality review. However, they may not be the best fit for your individual situation — it’s worth actively choosing your provider before or shortly after enrolment.

Choosing your own provider at enrolment

You don’t have to wait for IRD to assign you. Before starting a new job (or within the first few weeks), you can:

Choose a provider directly
Complete the provider’s membership application
Tell your employer which provider you’ve joined
Your employer deducts contributions and sends them to your chosen provider

Method 2: Opt-In Directly (Existing Employees, Self-Employed, or Non-Employed)

If you’re not auto-enrolled (existing employee, self-employed, contractor, beneficiary, or not working), you can join KiwiSaver voluntarily at any time.

Step-by-step: joining directly

Step 1: Choose a KiwiSaver provider

This is the most important decision. Consider:

Fees (see our KiwiSaver fees comparison)
Fund type (growth/balanced/conservative — based on your time horizon)
Investment approach (passive index vs active management)
Digital tools and accessibility

For guidance, see our best KiwiSaver providers comparison and how to choose a KiwiSaver fund.

Step 2: Complete the membership application

Go to your chosen provider’s website and complete their online membership form. You’ll need:

Full name and date of birth
IRD number (find yours on myIR at ird.govt.nz)
Contact details and NZ address
Bank account details (for voluntary contributions)
Fund type selection

Most providers complete the online application in 5–10 minutes.

Step 3: Notify your employer (if applicable)

If you’re an existing employee who has never been in KiwiSaver, tell your employer in writing. They must begin deducting your chosen contribution rate (3%, 4%, 6%, 8%, or 10%) from your next pay.

Step 4: Set up your contribution rate

Your default deduction rate is 3%. You can change this to 4%, 6%, 8%, or 10% at any time by completing a KS2 form (available from IRD or your employer).

Step 5: Consider setting up voluntary contributions

In addition to PAYE deductions, you can make direct contributions to your KiwiSaver account at any time via bank transfer. This is especially useful for self-employed members, people on contribution holidays, and anyone wanting to reach the Member Tax Credit threshold of ~$1,043/year (see our government KiwiSaver contribution guide).

Method 3: Enrolling as a Self-Employed Person

Self-employed people are not auto-enrolled and do not receive employer contributions. However, joining KiwiSaver is still worthwhile — particularly for:

The Member Tax Credit of up to $521.43/year (a guaranteed return on contributions up to ~$1,043)
Building retirement savings in a tax-efficient PIE structure
First home withdrawal (if you haven’t owned property before)

How to enrol as self-employed

Choose a provider and complete their online application (same as Method 2)
Confirm your IRD number and tax status
Set up a direct debit or regular bank transfer to your KiwiSaver account — there are no automatic payroll deductions as you pay your own tax
Aim to contribute at least ~$20.06/week (~$1,043/year) to maximise the Member Tax Credit

For the full picture on KiwiSaver for self-employed people, including IRD direct contribution options and whether it’s worth it in different scenarios, see our KiwiSaver for self-employed guide.

Method 4: Enrolling a Child

Parents or guardians can enrol children in KiwiSaver. Enrolling a child early starts the 3-year membership clock running — meaning they’ll be eligible for the KiwiSaver first home withdrawal much earlier in their adult life.

Key facts about child membership

Children enrolled at birth hit the 3-year threshold at age 3
The 3-year clock for first home withdrawal eligibility starts from enrolment date — not from when contributions start
IRD pays the annual Member Tax Credit (up to $521.43) only for members who are 18 or older
Under 18s who are in paid employment may have KiwiSaver contributions deducted from their wages — same rules as adults

How to enrol a child

Contact a KiwiSaver provider directly (not all providers accept child enrolments — check first)
Complete the child membership application as guardian
The child’s IRD number is required — apply through IRD if the child doesn’t have one (free, done via myIR or IR595 form)

Good providers for child enrolments: Simplicity, Booster, and SuperLife are commonly used for child KiwiSaver accounts.

For more on KiwiSaver for children, see our KiwiSaver for newborns guide.

Choosing Your Provider and Fund at Enrolment

The two most important decisions you make at enrolment are your provider and your fund type. Getting these right matters more than the timing of when you join.

Choosing a fund type

Your situation	Recommended fund type
10+ years to retirement or first home	Growth
5–10 years to retirement	Balanced
Under 5 years to retirement	Conservative
Planning to buy a first home within 3 years	Conservative
Over 65, still contributing	Conservative to balanced

For detailed guidance, see how to choose a KiwiSaver fund.

Choosing a provider

Key factors:

Fees: The biggest long-term driver. Simplicity (0.31%) and BNZ (~0.35%) are the lowest-cost options. See our fees comparison.
Performance: Use 5-year after-fee returns, not last year’s ranking. See best performing funds.
Ethical preferences: Booster’s Socially Responsible range and Pathfinder are the main ethical-focused options.
Digital tools: Booster (MyBooster), Milford, and Simplicity all have good member portals.

What Happens After You Enrol

Your first contributions

For PAYE employees: contributions are deducted automatically from each pay and sent to IRD, which forwards them to your provider. Your employer also contributes 3% of your gross salary (subject to ESCT tax).

Your membership number

Your provider will issue you a membership number. Save this — you’ll need it for future withdrawal applications.

The Member Tax Credit

Each KiwiSaver year (1 July – 30 June), if you contribute at least ~$1,043 from your own money (not employer contributions), the government adds up to $521.43 to your account, paid automatically in July–August. To maximise this, ensure your contributions meet the threshold.

Checking your balance

You can check your KiwiSaver balance any time through your provider’s website or app, or through myIR at ird.govt.nz. See our how to check your KiwiSaver balance guide for all methods.

Opting Out

If you’re auto-enrolled through a new employer and decide KiwiSaver isn’t for you, you have 8 weeks from your start date to opt out. Complete the KS10 form (available from IRD) and give it to your employer or send it directly to IRD.

If you opt out, your employer contributions are returned (minus tax), and your own contributions are refunded in full. You can re-enrol at any time in the future.

Most financial advisers recommend against opting out — the employer contribution alone represents a 100%+ immediate return on your own minimum contribution, and the Member Tax Credit adds further value.

Frequently Asked Questions

Can I join KiwiSaver if I’m not working? Yes. KiwiSaver membership is not tied to employment. You can join directly through any provider and make voluntary contributions at your own pace. The employer contribution rules only apply to employed members.

What IRD number do I need? Your own New Zealand IRD number. If you don’t have one, apply through myIR at ird.govt.nz or complete an IR595 form (for individuals). IRD numbers are issued free of charge.

Can I choose any provider I want? Yes. You have complete freedom to choose any registered KiwiSaver scheme provider. You are not required to use your bank or your employer’s preferred provider.

What if I already have a KiwiSaver account from a previous job? Your existing account follows you — KiwiSaver is not employer-specific. Your balance, contribution history, and eligibility clock all continue. If you haven’t actively chosen a provider, check which one you’re with via myIR and consider whether to switch.

How do I find out if I’m already in KiwiSaver? Log in to myIR at ird.govt.nz and check the KiwiSaver section. It will show your current provider, balance (approximately), and contribution history.

Can I be in more than one KiwiSaver scheme? No. You can only be a member of one KiwiSaver scheme at a time. If you are accidentally enrolled in two, IRD will consolidate your accounts.