Choosing a KiwiSaver Fund
🎯 KiwiSaver Fund Types Explained
Your KiwiSaver money is invested in a fund, and the fund you are in has a bigger effect on your final balance than almost anything else, often more than the exact amount you contribute. The choice comes down to one idea: how much of your money sits in growth assets like shares and property, which can rise and fall sharply but tend to grow more over time, versus income assets like cash and bonds, which are steadier but grow more slowly. Getting this right for your situation is one of the most valuable money decisions you can make.
The Five Fund Types
Funds in New Zealand are grouped into five risk categories, based on the share of growth assets they hold. The categories are a useful guide, though the exact mix varies between providers.
| Fund Type | Growth Assets (approx) | Ups and Downs | Often Suits |
|---|---|---|---|
| Defensive | 0% to 10% | Very small | Money needed very soon |
| Conservative | 10% to 35% | Small | A goal one to three years away |
| Balanced | 35% to 63% | Moderate | A medium timeframe, or the middle ground |
| Growth | 63% to 90% | Large | A decade or more until you need it |
| Aggressive | 90% to 100% | Very large | A long timeframe and comfort with big swings |
Growth Assets vs Income Assets
Understanding the two building blocks makes every fund easy to read.
- Growth assets (shares, property): Higher expected returns over long periods, but the value can fall a long way in a bad year. Time smooths these swings out.
- Income assets (cash, bonds, term deposits): Lower expected returns, but far steadier. Useful when you cannot afford for the balance to drop just before you need it.
⏳ Matching a Fund to Your Time Horizon
Time Is the Biggest Factor
The single most important question is: how many years until you take the money out? The longer the timeframe, the more short-term ups and downs you can ride out, because markets have time to recover before you need to spend the money.
A General Guide by Timeframe:
| Years Until You Need It | Fund Type to Consider | Why |
|---|---|---|
| Under 3 years | Defensive or Conservative | No time to recover from a downturn |
| 4 to 9 years | Balanced | Some growth, but steadier than full growth |
| 10 years or more | Growth or Aggressive | Time to ride out the swings and capture growth |
Why Time Smooths the Ride
Growth funds can have a poor year, sometimes a sharply negative one. But over long periods the good years have historically outweighed the bad. If you will not touch the money for 20 or 30 years, a single bad year matters far less than the extra growth you can earn over the whole period.
The lesson: a young member with decades to go usually has the time to benefit from a growth fund, while still being free to dial back risk later as goals get closer.
The First Home Exception
KiwiSaver can be used for a first home deposit. If you plan to withdraw in the next few years, your timeframe is short even if you are young. A downturn just before you buy could shrink your deposit at the worst possible moment.
Approaching Retirement
As you near 65, you might reduce risk so a late downturn does not derail your plans. But remember retirement can last decades, so some people keep a portion in growth assets to keep the balance working. There is no single right answer, only the mix that fits your needs and comfort.
💸 Fees, Returns and Switching Funds
Why Fees Matter More Than They Look
Every KiwiSaver fund charges fees, usually as a percentage of your balance each year. A difference that looks tiny, like 1% versus 0.5%, is charged every year on a balance that grows over decades, so the gap compounds into a large sum by retirement.
Use our KiwiSaver Fee Calculator to see the long-term cost of different fee levels. Lower fees are not the only thing that matters, but for similar funds, a lower fee leaves more in your pocket.
How to Read Past Returns
Returns tell you how a fund has performed, but they come with an important catch.
- Compare like with like: A growth fund will usually beat a conservative fund over good years. Compare funds of the same type, not across types.
- Past returns are not a promise: Last year's top performer is not guaranteed to lead next year. Look at longer periods, not a single year.
- Returns are shown after fees but before tax: Check whether figures are stated after the fund's fees, which most published returns are.
Switching Funds
You are never locked in. You can change to a different fund with your current provider, or switch to a whole new provider. You can only be in one KiwiSaver scheme at a time, so moving to a new provider closes the old one automatically.
| Question | Answer |
|---|---|
| Does switching cost tax? | No, moving your KiwiSaver between funds or providers is not a taxable event |
| Is there usually a fee to switch? | Most providers do not charge to switch funds or join |
| How long does it take? | Typically a few days to a couple of weeks |
| Can I split across funds? | Many providers let you spread your balance across more than one fund |
Default Funds
If you were enrolled automatically and never chose a fund, you were placed in a default fund. Default funds are now balanced funds, which is a reasonable middle ground, but it may not be the best fit for your timeframe. It is always worth checking what you are in and whether it suits you.
💡 Common Mistakes and a Simple Way to Choose
Mistake 1: Too Cautious When Young
The trap: A 25 year old sitting in a conservative or default fund with 40 years to retirement.
Why it costs: With decades to ride out the swings, a more growth-focused fund has historically grown much more. Playing it safe too early can leave a large amount of growth on the table.
Mistake 2: Panic Switching After a Drop
The trap: Markets fall, the balance drops, and the member switches to a conservative fund to stop the bleeding.
Why it costs: Switching after a fall locks in the loss and means you miss the recovery. The drop is only real if you sell. For long-term money, staying put through a downturn is usually the better move.
Mistake 3: Ignoring Fees
The trap: Never checking what the fund charges.
Why it costs: Fees are charged every year and compound over a working life. For two similar funds, the cheaper one usually wins over time.
Mistake 4: Forgetting a Near Goal
The trap: Staying in a growth fund while planning to withdraw for a first home next year.
Why it costs: A downturn just before you buy could shrink the deposit when you can least afford it. Match the fund to when you actually need the money.
A Simple Way to Choose
Where to Go Next
Use the KiwiSaver Calculator to project your balance, the KiwiSaver Fee Calculator to see the cost of fees, and the KiwiSaver First Home Withdrawal Calculator if you are saving for a deposit.
Final word: Choosing a KiwiSaver fund is not about predicting markets. It is about matching the fund to your timeframe, keeping fees low, and picking a level of risk you can hold through the rough patches. Get those three things right, leave the fund alone between yearly reviews, and you have done the hard part. This is general information, not personalised financial advice, so consider talking to a licensed financial adviser for your own situation.
🎯 Test Your Knowledge
Quiz on Choosing a KiwiSaver Fund (20 Questions)
Frequently Asked Questions
How do I choose a KiwiSaver fund?
Match the fund risk level to how long until you need the money and how comfortable you are with ups and downs; longer timeframes suit growth funds, shorter ones suit conservative funds.
What are the KiwiSaver fund types?
Defensive, conservative, balanced, growth and aggressive, set by how much is invested in growth assets like shares and property versus income assets like cash and bonds.
Do KiwiSaver fees matter?
Yes. Fees are charged every year on your balance and compound over decades, so for similar funds a lower fee leaves more in your pocket.
Can I switch KiwiSaver funds?
Yes, at any time, with no tax and usually no fee. You can change funds with your provider or switch to a new provider entirely.
Related guides
- Choosing a Bank Account, a related guide in the same area.
- Emergency Fund Guide, a related guide in the same area.
- Ethical KiwiSaver Funds, a related guide in the same area.