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Growth, balanced or conservative? How to pick your KiwiSaver fund by age and goal

22 September 2026

KiwiSaver funds are usually grouped into types: defensive, conservative, balanced, growth and high growth. The difference comes down to the mix of two kinds of assets they hold. Income assets (cash and bonds) tend to move less in either direction. Growth assets (shares and property) tend to move more in either direction.

  • Defensive and conservative funds hold mostly income assets: cash and bonds.
  • Balanced funds sit roughly in between, with a mix of both.
  • Growth and high growth funds hold mostly growth assets: shares and property.
  • The name describes the asset mix. It isn't a judgement on the fund itself.

Growth

Growth assetsIncome assets

Mostly shares. Built for long timeframes, with the biggest swings along the way.

Balanced

Growth assetsIncome assets

A middle mix of shares and bonds. Moderate swings, moderate long-run growth.

Conservative

Growth assetsIncome assets

Mostly bonds and cash. Smaller swings, and a lower expected return over time.

Illustrative growth/income mix by fund type. Actual allocations vary by provider and by fund.

The trade-off runs one way. More growth assets have tended to produce higher returns over long periods, in exchange for bigger swings, including real falls, over any single year or few years. More income assets have tended to produce smoother, more modest returns over the same long periods, with far fewer sharp drops along the way. Both sides carry a cost: more growth means accepting a genuinely bad year is possible, less growth means accepting a lower expected return over decades.

$0$50k$100k$150k$200k$250k05101520YearsThe biggest fall in this illustrationHigh Growth down 21% in one yearConservative down 5% in one year$102k$125k$166k$198k$232k
  • High Growth8% average, 16% volatility
  • Growth7% average, 13% volatility
  • Balanced6% average, 9% volatility
  • Conservative4.5% average, 5% volatility
  • Defensive3.5% average, 3% volatility
One illustration of that trade-off: $50,000 left invested for 20 years in each band, with every band feeling the same market in the same year. Assumes a long run average of 3.5% a year for Defensive, 4.5% for Conservative, 6% for Balanced, 7% for Growth and 8% for High Growth, with year to year swings of 3%, 5%, 9%, 13% and 16% around those averages, all after fund fees and before tax. Illustration only, not a projection of any particular fund or of your own KiwiSaver. Returns are not guaranteed and past performance is no guide to the future.
  • Risk vs return: more growth assets have tended to mean higher long-run returns, with more risk of a bad year along the way.
  • Time: money needed in a few years has less time to recover from a fall than money you won't touch for decades.
  • Ups and downs: growth-heavy funds can drop sharply in a single year. Income-heavy funds tend to move less, both up and down.

There's no one right fund type for everyone. An adviser can help you work out which fund type suits you, or you can run your numbers through the KiwiSaver Health Check.

This article is general information only, not personalised financial advice. It doesn't take your individual circumstances into account, and it says nothing about your own KiwiSaver. For advice about your own situation, talk to Kyle.
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