KiwiSaver is New Zealand’s voluntary workplace retirement savings scheme. Since launching in July 2007, it has grown to over 3.5 million members and more than $120 billion in funds under management — making it one of the most significant financial tools available to New Zealanders.
This guide covers everything you need to know: how KiwiSaver works, how much to contribute, how to choose the right fund and provider, how to use it for your first home, and how to make the most of the government’s contributions.
What Is KiwiSaver?
KiwiSaver is a savings scheme administered by Inland Revenue (IRD) and managed by private providers — including banks, fund managers, and independent investment companies.
When you enrol, a percentage of every pay cheque is automatically deducted and sent by your employer to IRD, which then forwards it to your chosen provider. Your employer adds their own contribution on top. Over time, the money is invested in funds you select, growing until you reach 65 (the NZ Super age) or qualify for a first home withdrawal.
KiwiSaver is voluntary — you can choose to join or opt out. However, if you start a new job, your employer is required by law to automatically enrol you, and you have 56 days to opt out if you choose.
Key facts:
- Launched: 1 July 2007
- Eligible age: any age — including children, although employer contributions only apply to those 18 and over in paid employment
- Regulated by: the Financial Markets Authority (FMA) and Inland Revenue (IRD)
- Total funds under management: $120+ billion (2026)
How KiwiSaver Works
Money flows into your KiwiSaver account from up to three sources:
1. Your contributions
You choose a contribution rate of 3%, 4%, 6%, 8%, or 10% of your before-tax salary. This is deducted from your pay automatically and forwarded to your provider via IRD.
For a full breakdown of what each rate means in dollar terms, see our KiwiSaver Contribution Rates guide.
2. Your employer’s contributions
Your employer must contribute a minimum of 3% of your gross salary on top of your own contributions — this is essentially free money added to your savings. Employer contributions are subject to a tax called ESCT (Employer Superannuation Contribution Tax), which means the amount that reaches your account may be slightly less than the headline 3%.
Employer contributions apply to employees aged 18 and over. For more detail, see the Employer KiwiSaver guide.
3. The government contribution (Member Tax Credit)
The government contributes up to $521.43 per year — 50 cents for every dollar you contribute yourself, up to a maximum of $1,042.86 in contributions per year.
To get the full $521.43, you need to contribute at least $1,042.86 between 1 July and 30 June each year. This works out to around $20 per week. This applies to members aged 18–65 who are NZ tax residents.
See our guide to maximising your Member Tax Credit.
Who Can Join KiwiSaver?
You are eligible to join KiwiSaver if you are:
- A New Zealand citizen or permanent resident living in New Zealand, or
- Entitled to be in New Zealand indefinitely
You can join at any age — including children and retirees, though certain rules apply to each group.
People on work visas may be able to contribute but cannot make a first home withdrawal and may face restrictions on accessing their savings. See our guide to KiwiSaver on a work visa.
Self-employed and contractors can join KiwiSaver but do not receive automatic employer contributions — all contributions come from their own income. See our KiwiSaver for self-employed guide.
Migrants from Australia can transfer their Australian superannuation to KiwiSaver under a trans-Tasman agreement. See the getting started guide.
KiwiSaver Contribution Rates
New Zealand employees can choose from five contribution rates:
| Rate | Weekly contribution (on $60,000 salary) | Annual contribution |
|---|---|---|
| 3% | $34.62 | $1,800 |
| 4% | $46.15 | $2,400 |
| 6% | $69.23 | $3,600 |
| 8% | $92.31 | $4,800 |
| 10% | $115.38 | $6,000 |
Based on a $60,000 gross annual salary. Contributions are calculated on gross (before-tax) income.
Most New Zealanders start at 3% — the minimum required to receive the full employer contribution. Whether you should contribute more depends on your income, goals, and other financial commitments.
Not sure which rate suits you? Our KiwiSaver contribution decision guide walks through the decision by income and life stage.
KiwiSaver Fund Types
Your contributions are invested in a fund managed by your chosen provider. There are six main fund types, ranging from very conservative to very aggressive:
| Fund type | Risk level | Expected return* | Best suited to |
|---|---|---|---|
| Cash | Very low | 3–5% | Near retirement, very short horizon |
| Conservative | Low | 4–6% | Retirement within 5 years |
| Moderate | Low-medium | 5–7% | Medium horizon, lower risk tolerance |
| Balanced | Medium | 6–8% | 10+ year horizon, moderate risk |
| Growth | Medium-high | 7–10% | 15+ year horizon |
| Aggressive | High | 8–12% | 20+ year horizon, high risk tolerance |
Expected returns are long-term historical averages only. Past performance does not guarantee future returns.
The most common mistake NZ KiwiSaver members make is staying in a conservative or default fund when their time horizon is long. A 30-year-old who stays in a conservative fund instead of a growth fund may retire with significantly less.
For a full breakdown of each fund type, see the KiwiSaver fund types guide.
Choosing a KiwiSaver Provider
New Zealand has over 20 KiwiSaver scheme providers, ranging from the big banks (ANZ, ASB, BNZ, Westpac, Kiwibank) to independent specialists (Milford, Simplicity, Kernel, Fisher Funds, Booster, Pathfinder, and more).
The key factors to compare:
Fees — even a 0.5% difference in annual fees compounds significantly over 30+ years. Passive providers like Simplicity and Kernel tend to charge less than active managers.
Performance — past returns are not guaranteed, but 5–10 year performance is a useful guide. See the KiwiSaver fund performance comparison.
Fund range — some providers offer a wide range of fund types and ethical options; others offer a narrower selection.
Digital tools — how easy is it to check your balance, change your fund, or contact support?
Ethical investing — if where your money is invested matters to you, see the ethical KiwiSaver funds guide.
See all KiwiSaver provider reviews for individual assessments, or use our comparison guides to see providers head-to-head.
How to Enrol in KiwiSaver
- Start a new job — your employer automatically enrols you. You have 56 days to opt out.
- Enrol directly — contact any KiwiSaver provider and sign up through their website or branch.
- Enrol through IRD — complete a KS1 form via myIR.
When you enrol, you will need your IRD number. If you do not choose a provider, you will be placed with one of the IRD’s default providers.
For step-by-step instructions, see the KiwiSaver getting started guide.
Using KiwiSaver to Buy Your First Home
KiwiSaver’s first home withdrawal is one of its most valuable features for younger New Zealanders. After 3 years of being a KiwiSaver member, you may be able to withdraw most of your balance (leaving a minimum $1,000) to put toward buying your first home — if it is the home you will live in.
Key eligibility rules:
- You must have been a KiwiSaver member for at least 3 years
- You must be a first-time home buyer (or in certain circumstances, be in a similar financial position to one)
- The property must be in New Zealand
- You must intend to live in the property
You may also be eligible for the First Home Grant (administered by Kāinga Ora), which provides up to $10,000 per person for an existing home or $20,000 for a new build — separate from your KiwiSaver balance.
The first home cluster covers everything: eligibility, how much you can withdraw, the application timeline, the 5% deposit First Home Loan, and how to combine KiwiSaver with the First Home Grant. Start with the KiwiSaver first home withdrawal guide.
When Can You Access KiwiSaver?
KiwiSaver is designed to be locked in until age 65 — the age you become eligible for NZ Super. However, there are several situations where you can access it earlier:
| Scenario | Available? |
|---|---|
| First home purchase (after 3 years) | ✅ Yes |
| Significant financial hardship | ✅ Yes, subject to IRD criteria |
| Terminal illness | ✅ Yes |
| Permanent emigration (except to Australia) | ✅ Yes, after 12 months |
| Transferring to Australian super | ✅ Yes |
| Death | ✅ Paid to estate |
| Redundancy alone | ❌ No |
| General financial difficulty (not meeting hardship criteria) | ❌ No |
| Buying an investment property | ❌ No |
For a complete guide to all early access scenarios, see when you can access KiwiSaver early.
KiwiSaver Fees
All KiwiSaver funds charge fees. These typically include:
- Member fee — a fixed annual fee (often $30–$60/year)
- Management fee — a percentage of your balance (typically 0.3–1.5% per year)
- Performance fees — some active managers charge a percentage of returns above a benchmark
The difference between a low-fee and high-fee fund is significant over time. On a $100,000 balance, a 1% annual fee costs $1,000 per year — money that is not compounding and growing.
See the KiwiSaver fees comparison and our guide to the cheapest KiwiSaver funds in NZ.
KiwiSaver and Tax
KiwiSaver funds are structured as PIE funds (Portfolio Investment Entities), which gives them a tax advantage — your investment income is taxed at your PIR (Prescribed Investor Rate) rather than your marginal income tax rate.
PIR rates:
| Taxable income (two prior years) | PIR rate |
|---|---|
| Up to $14,000 | 10.5% |
| $14,001 – $48,000 | 17.5% |
| Over $48,000 | 28% |
Many KiwiSaver members are on the wrong PIR rate — typically too high — which means they overpay tax on their investment returns. It is worth checking your rate every year.
For full detail on KiwiSaver tax, PIR rates, and how to update your rate, see the KiwiSaver tax guide.
KiwiSaver Strategies
Beyond the basics, there are several ways to optimise your KiwiSaver:
Top up voluntarily — you can make lump sum contributions to your KiwiSaver at any time, directly to your provider. This is useful for maximising the government’s $521 contribution or boosting your first home deposit.
Increase your contribution rate — moving from 3% to 4% adds relatively little to your weekly budget but compounds significantly over decades.
Choose the right fund for your age — the appropriate fund type changes as you approach retirement. Most people should move to a more conservative fund in their 50s.
KiwiSaver vs paying off your mortgage — this is one of the most common financial decisions NZ homeowners face. The answer depends on your mortgage rate, your KiwiSaver fund type, and your tax rate.
KiwiSaver and NZ Super — KiwiSaver and NZ Super can be received simultaneously from age 65. See KiwiSaver and NZ Super.
Explore the full KiwiSaver strategies section for in-depth guides on all of these topics.
KiwiSaver by Life Stage
KiwiSaver looks different at every age. Here are the main considerations by decade:
- Under 18 — parents can enrol children; no employer match but contributions grow tax-efficiently
- 20s — time horizon is long; a growth or aggressive fund is typically appropriate; even small contributions compound significantly
- 30s — consider increasing contribution rate; review provider and fund type; prioritise first home withdrawal if buying
- 40s — mid-career review; balance growth with starting to plan withdrawal strategy
- 50s — begin shifting to a more moderate or balanced fund; review fees carefully; consider whether topping up makes sense
- 65+ — can withdraw all or any portion; can keep contributing; KiwiSaver does not close automatically at 65
See the full KiwiSaver by age guides for your specific life stage.
KiwiSaver Calculators
- KiwiSaver calculator — project your balance at retirement
- KiwiSaver first home calculator — estimate how long until you have enough for a first home deposit
- KiwiSaver balance by age — see how your balance compares to NZ averages
- PIR rate calculator — check you are on the right tax rate
Frequently Asked Questions
Is KiwiSaver compulsory in NZ? No — KiwiSaver is voluntary. However, new employees are automatically enrolled when they start a job and must actively opt out within 56 days if they do not wish to participate.
Can I access my KiwiSaver before 65? Yes, in limited circumstances: first home purchase (after 3 years), significant financial hardship, terminal illness, or permanent emigration. Redundancy alone does not qualify.
How much should I contribute to KiwiSaver? The minimum is 3%, which is enough to receive the full employer contribution and government top-up. Whether to contribute more depends on your goals, income, and other financial commitments. See the contribution decision guide.
What happens to my KiwiSaver if I lose my job? Your balance stays in your account with your chosen provider. If you cannot afford contributions, you can apply for a contribution holiday (now called a savings suspension) for up to 12 months. Redundancy alone does not allow you to withdraw.
Can my employer contribute more than 3%? Yes — some employers voluntarily contribute more. This is worth checking in your employment agreement or asking HR.
What is the best KiwiSaver fund in NZ? There is no single answer — the right fund depends on your age, risk tolerance, and how long until you need the money. A growth fund may be appropriate for a 25-year-old but not for a 62-year-old. See the how to choose a KiwiSaver fund guide and provider reviews.
What is the Member Tax Credit? It is the government’s contribution to your KiwiSaver — $0.50 for every $1 you contribute, up to $521.43 per year. To receive the full amount, you need to contribute at least $1,042.86 between 1 July and 30 June.
Can I use KiwiSaver to buy an investment property? No. The KiwiSaver first home withdrawal can only be used to purchase a home you intend to live in. It cannot be used for investment properties, holiday homes, or second properties.
What happens to KiwiSaver when I die? Your KiwiSaver balance is paid to your estate and distributed according to your will. See the KiwiSaver death benefit guide.
Is KiwiSaver taxed at 65? No — your withdrawal at 65 is not subject to income tax. The PIE tax on investment earnings has already been deducted throughout the life of the account. See the KiwiSaver tax guide.
Next Steps
KiwiSaver rewards those who start early, choose the right fund, and actively manage their account. Here is where to go from here:
- New to KiwiSaver? → Getting started guide
- Not sure which fund is right? → How to choose a KiwiSaver fund
- Saving for your first home? → First home withdrawal guide
- Comparing providers? → KiwiSaver provider reviews
- Want to optimise your contributions? → KiwiSaver strategies
- Approaching retirement? → KiwiSaver withdrawals guide
For advice specific to your personal circumstances, speak with a licensed financial adviser. You can find one through the FMA’s financial adviser register or sorted.org.nz.