KiwiSaver for Children: Starting Early for Future Savings
Opening a child KiwiSaver account is one of the most effective ways to give your kids a financial head start. With decades of compound growth ahead, even small contributions today can build meaningful savings for their first home or retirement.
What is KiwiSaver for Children?
KiwiSaver for children isn't just for working adults. Any New Zealand citizen or permanent resident under the age of 18 can have a child KiwiSaver account opened on their behalf by a parent or legal guardian. The account functions in largely the same way as an adult's — contributions are pooled into professionally managed investment funds and grow over time through market returns.
The key difference is how money flows in. Children are not employees, so there are no automatic payroll deductions. Instead, contributions come voluntarily from parents, grandparents, or other family members. There are no minimum or maximum contribution requirements, making it flexible for families at any income level — see our guide on how much should you contribute? for more on contribution strategies.
Once the child turns 18 and enters the workforce, the account transitions into a standard KiwiSaver membership. At that point, employer contributions and government Member Tax Credits begin to apply — adding to the balance that has already been building for years. The account is managed by the guardian until the child reaches 18, at which point full control passes to the member.
Child vs Adult KiwiSaver
Account Management
A parent or guardian manages the account until the child turns 18, including choosing the provider and fund type.
Voluntary Contributions Only
No payroll deductions apply. Parents, grandparents, and family contribute at their own pace with no minimums.
No Employer Match or Tax Credits
Under-18s do not receive employer contributions or Member Tax Credits. These kick in when the child turns 18 and starts working.
Same Withdrawal Rules
Funds are locked in under the same rules as adults — accessible at 65, for a first home (after 3 years), or in cases of financial hardship.
Benefits of Starting Early
The single greatest asset a child has when it comes to investing is time. Starting a KiwiSaver account early unlocks the full power of compound interest — where returns generate their own returns, year after year.
years of compounding
Decades of Growth
A child enrolled at birth has over 50 years of compound growth before reaching the standard access age of 65. Even modest contributions can snowball into substantial savings over that timeframe.
years head start on deposit
First Home Deposit
For first home buyers, a child KiwiSaver account means the three-year membership requirement is met long before they start house hunting. The balance can form a meaningful part of a deposit.
well-funded retirement
Retirement Planning Head Start
KiwiSaver supplements New Zealand Superannuation at age 65. A child who begins saving from birth carries a significant advantage in retirement planning over someone who starts in their thirties.
The compound interest advantage
If you contribute $20 per week to a child's KiwiSaver account from birth, invested in a growth fund averaging 6% annual returns after fees, the balance could reach approximately $40,000 by age 18 — despite contributing only around $18,700 in total. By age 65, with continued contributions and employer matching, the total could exceed $500,000 in today's dollars.
growth by age 18 alone
How to Open a KiwiSaver Account for a Child
Opening a child KiwiSaver account is straightforward. As a parent or legal guardian, you will act on the child's behalf through the entire enrolment process. The child must be a New Zealand citizen or permanent resident, and you will need their IRD number before you begin.
If your child doesn't yet have an IRD number, you can apply through the Inland Revenue Department (IRD) — it's free and can often be done at the same time as registering the birth. Once you have the IRD number, you choose a KiwiSaver provider and complete their enrolment form, specifying yourself as the guardian on the account.
Choosing the Right Fund
Because children have decades before they need to access their savings, many financial advisers recommend a growth or aggressive investment fund for young children. Higher-risk funds historically deliver stronger long-term returns, and the extended time horizon allows for recovery from short-term market dips.
Steps to Enrol Your Child
Get an IRD Number
Apply for your child's IRD number through Inland Revenue if they don't already have one. This is required for all KiwiSaver accounts.
Choose a Provider
Research KiwiSaver providers and compare their investment funds, fees, and performance track records. Look for providers with strong long-term returns and low fees.
Select a Fund Type
Pick a fund that matches the child's long time horizon. Growth and aggressive funds are common choices for children given the decades of investment ahead.
Complete Enrolment
Fill in the provider's application form with your child's details and IRD number. You'll be listed as the guardian with authority to manage the account.
Set Up Contributions
Arrange a regular automatic payment or make lump-sum contributions whenever you choose. Even $5 or $10 per week adds up significantly over time.
Understanding Contributions for a Child's KiwiSaver
Contributions to a child's KiwiSaver work differently from an adult's. There are no payroll deductions, no employer contributions, and no government Member Tax Credits until the child turns 18 and begins employment.
What Applies Under 18
CurrentVoluntary contributions from anyone
Parents, grandparents, aunts, uncles — anyone can contribute to the child's account at any time.
No minimum contribution
Contribute as little or as much as you like. There's no required frequency or amount.
Full investment fund access
Children have access to the same range of investment funds as adult members, from conservative to aggressive.
What Doesn't Apply Under 18
Not YetNo employer contributions
The compulsory 3% employer match only begins when the child is employed and contributing through payroll after turning 18.
No Member Tax Credit
The government's annual credit of up to $521.43 is only available to members aged 18 to 64. Under-18s miss out on this incentive.
No payroll deductions
Automatic salary deductions only apply to employees. All child contributions must be made manually or via automatic bank payments.
What changes at 18
When the child turns 18 and starts employment, the account transitions seamlessly. Employer contributions begin at a minimum of 3%, and the government Member Tax Credit of up to $521.43 per year applies. The member gains full control of their account and can adjust their contribution rate, switch funds, or change providers independently. Consulting a financial adviser at this stage can help optimise the transition.
Comparing KiwiSaver with Other Savings Options
KiwiSaver is not the only way to save for a child's future. Term deposits, savings accounts, and managed funds are all options — each with different trade-offs in terms of returns, access, and risk.
| KiwiSaver | Term Deposits | Savings Accounts | |
|---|---|---|---|
| Potential Returns | Higher (4–8% long-term average for growth funds) | Moderate (fixed interest rate, typically 3–6%) | Low (variable rate, typically 0.5–4%) |
| Access | Locked until 65, first home, or hardship | Locked for fixed term (30 days to 5 years) | Fully accessible at any time |
| Investment Risk | Varies by fund type (low to high) | Very low (guaranteed return if held to maturity) | Very low (capital protected) |
| Fees | Annual management fees (0.2–1.5% of balance) | No fees (break fees may apply for early withdrawal) | No fees (some accounts have conditions) |
| Best For | Long-term wealth building, first home, retirement | Short to medium-term savings with certainty | Emergency fund, short-term goals, full flexibility |
Consider using both
Many families use KiwiSaver for long-term investing for kids in New Zealand alongside a savings account for accessible, shorter-term goals like education costs or a first car. KiwiSaver's investment funds are better suited to long-term growth, while savings accounts provide the flexibility to withdraw when needed. A financial adviser can help you design a savings strategy that covers both bases.
Key Considerations and Potential Drawbacks
While opening a child KiwiSaver account offers clear long-term advantages, it's important to understand the limitations before committing. The most significant is the withdrawal restrictions — once money goes into KiwiSaver, it is essentially locked away until the member reaches 65 or qualifies for a first home withdrawal.
This means the funds cannot be used for education, a gap year, a car, or other expenses that arise during the child's teenage or young adult years. For families who may need that flexibility, a savings account or term deposit alongside KiwiSaver may be a better approach than putting all savings into the scheme.
There is also investment risk to consider. While growth funds tend to deliver stronger returns over the long run, they can lose value in the short term. A child's account has decades to recover from downturns, but parents should be comfortable with the idea that the balance will fluctuate — sometimes significantly — over time. Understanding your child's fund type and its risk profile is part of responsible retirement planning from an early age.
Key Points to Consider
Funds are locked in
Withdrawal restrictions mean contributions cannot be accessed for education, travel, or other non-qualifying purposes. Only retirement, first home purchase, or approved hardship withdrawals are permitted.
No government incentives until 18
Without employer contributions or Member Tax Credits, the growth relies entirely on voluntary contributions and investment fund returns during the child's first 18 years.
Market volatility
Investment risk means the account balance can drop during market downturns. While time is on a child's side, parents should select a fund type they understand and are comfortable with.
The child inherits the decision
At 18, the child takes full control of the account. They may have different financial priorities than the parents anticipated. Discussing KiwiSaver as part of broader financial literacy is worthwhile.
Despite the trade-offs, time wins
For most families, the long-term benefits of early enrolment outweigh the drawbacks. The decades of compound growth available to a child starting at birth are simply not replicable if you wait until they enter the workforce. Combined with New Zealand Superannuation at retirement, a child's KiwiSaver can form the cornerstone of lifelong financial security.
Give Your Child a Financial Head Start
Compare KiwiSaver funds, find the right provider for your child, and connect with a licensed adviser to set up their account today.