What is the best KiwiSaver fund in NZ?
There is no single best KiwiSaver fund for everyone. The best fund for you is the one whose risk level matches how long until you need the money, charges low fees for what it does, and comes from a provider you trust. Get those three right and you are most of the way there.
The rest of this article shows you how to judge each one, then points you at the tool that does the comparison for you.
Start with your timeframe, not the returns
The single biggest driver of which fund suits you is when you plan to spend the money. Past returns tell you what already happened. Your timeframe tells you how much risk you can carry now.
As a rough guide, the longer your money stays invested, the more growth assets like shares it can hold, because there is time to ride out the dips. Money you need within a few years, like a first home deposit, usually belongs somewhere far steadier.
Fund types run on a spectrum:
| Fund type | Typical growth assets | Often suits |
|---|---|---|
| Defensive | 0 to 20% | Money needed within 1 to 3 years |
| Conservative | 10 to 35% | Short horizons, lower tolerance for dips |
| Balanced | 35 to 63% | Medium horizons, mixed goals |
| Growth | 63 to 90% | Long horizons, comfortable with ups and downs |
| Aggressive | 90%+ | Long horizons, high tolerance for volatility |
The Sorted KiwiSaver fund finder and the Financial Markets Authority both classify funds on this basis. Match the band to your timeframe first, then compare within it.
Then compare on fees, because they are the part you control
You cannot control markets. You can control what you pay. Across the market, total KiwiSaver fees average around 0.71% of your balance a year, down from about 1.10% in 2012 (FMA KiwiSaver Annual Report, 2025). Within any one fund type, fees still vary widely between providers.
A fee gap that looks tiny compounds into real money over a working life. That is why fees are the first thing to check once you have settled on a fund type. We go deeper in our guide to how KiwiSaver fees work and our KiwiSaver fees comparison.
What “best” should not mean
Be wary of any list that crowns one fund the best on last year’s returns. A fund that topped a one year table is often just the one that took the most risk going into a good year. The same risk cuts the other way in a bad one. No provider can promise a return, and any that implies one is not worth your time.
Judge a fund on fit, cost and the provider’s track record of doing what it said it would, not on a single number.
How to actually choose and switch
Once you know your fund type and have compared fees, switching is quick. You apply to the new provider, they arrange the transfer, and your contributions redirect automatically. See how to switch KiwiSaver providers, and if you are not sure your current fund fits at all, check are you in the right KiwiSaver fund.
When you are ready, compare KiwiSaver funds and fees side by side.
Frequently asked questions
Which KiwiSaver fund has the best returns?
No fund can promise the best returns, and last year’s top performer is rarely next year’s. Compare funds of the same type on fees, risk and the provider’s long term track record rather than a single year’s number.
Is a growth fund better than a balanced fund?
Neither is better in the abstract. A growth fund holds more shares, so it tends to swing more in both directions. It often suits a long timeframe; a balanced or conservative fund often suits money you will need sooner.
Does switching to a different fund cost anything?
Most providers do not charge to switch in or out, but check your current provider’s terms. Switching providers does not reset your membership or your savings; your balance moves with you.
How often should I review my KiwiSaver fund?
A yearly check is plenty for most people, plus a look whenever your timeframe changes, for example when a first home moves within a few years.
Kāhu provides general information, not personalised financial advice. Kāhu is a KiwiSaver comparison and switching platform operated by Financial Advice NZ Limited, a licensed Financial Advice Provider (FSP1009051). The figures here are general and current as at June 2026. For advice on your situation, speak to a licensed financial adviser.