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KiwiSaver Fund Types NZ — Conservative, Balanced, Growth & More

Updated

Your KiwiSaver fund type is the single biggest driver of your long-run retirement balance — more than your provider, more than your contribution rate (within reason), and far more than timing. Choosing the wrong fund type at the wrong life stage can cost hundreds of thousands of dollars over a 40-year career.

How Fund Types Work

KiwiSaver funds invest in a mix of two broad asset classes:

  • Growth assets — shares (NZ, Australian, global), listed property. Higher long-run returns, higher short-term volatility.
  • Income assets — cash, bonds, fixed interest. Lower returns, lower volatility.

The fund type label tells you roughly how that mix is split:

Fund typeApprox. growth assetsApprox. income assetsLong-run return estimate
Defensive5–20%80–95%2–4% p.a.
Conservative20–35%65–80%3–5% p.a.
Moderate35–63%37–65%4–6% p.a.
Balanced63–80%20–37%5–7% p.a.
Growth80–90%10–20%6–8% p.a.
Aggressive90–100%0–10%7–9% p.a.

Returns are approximate long-run estimates. Individual years can vary widely — growth funds have fallen 15–26% in bad years.

Which Fund Type Should You Choose?

The general rule: the longer your investment horizon, the more growth assets you should hold. Short-term volatility matters far less than long-run compound returns over 20–40 years.

  • Under 45: Growth or aggressive is appropriate for most people
  • 45–55: Growth or balanced depending on risk tolerance
  • 55–60: Balanced or moderate; start planning fund transition
  • 60–65: Moderate or conservative; protect gains as retirement nears
  • At withdrawal: Conservative or defensive if withdrawing within 1–2 years

The worst mistake is being in conservative or balanced for your entire career — the compounding cost vs growth is enormous.

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