KiwiSaver Fund Types NZ 2026: Defensive to Aggressive Explained
KiwiSaver funds fall into five main types: defensive, conservative, balanced, growth, and aggressive. The difference is how much they invest in shares (higher risk, higher expected return) versus bonds and cash (lower risk, lower expected return). A growth fund typically holds 60-80% in shares and has returned around 7-9% p.a. over the past five years, while a defensive fund holds mostly bonds and cash and has returned around 2-3% p.a. (Disclose Register, Morningstar, five years to December 2025).
Compare all KiwiSaver funds side by side using the Forge Money comparison tool.
Asset allocation by fund type
The table below shows typical asset splits for each fund type. Individual funds vary, but these ranges reflect how most NZ KiwiSaver providers structure their funds (FMA fund type definitions, Disclose Register).
| Fund type | Growth assets (shares, property, listed infrastructure) | Income assets (bonds, cash, term deposits) | Typical 5-year return range | Typical worst year |
|---|---|---|---|---|
| Defensive | 0-15% | 85-100% | 2-4% p.a. | -1% to -3% |
| Conservative | 15-35% | 65-85% | 3-5% p.a. | -3% to -8% |
| Balanced | 35-63% | 37-65% | 5-7% p.a. | -8% to -15% |
| Growth | 63-90% | 10-37% | 7-9% p.a. | -15% to -25% |
| Aggressive | 90-100% | 0-10% | 8-10% p.a. | -20% to -35% |
"Growth assets" are primarily shares (NZ, Australian, and global equities), listed property, and sometimes infrastructure. "Income assets" are NZ and international bonds, cash, and term deposits.
The "typical worst year" column shows the kind of loss you might see in a bad year. During COVID-19 in early 2020, aggressive funds dropped 15-25% in a matter of weeks before recovering. In the 2007-2009 global financial crisis, some growth funds fell over 30% (Morningstar, Disclose Register).
Defensive funds
Defensive funds aim to protect your balance from significant losses. They're the most stable option, but over the long term they may barely keep pace with inflation.
What they invest in: Mostly cash deposits and high-quality NZ and international bonds. A small allocation (up to 15%) may go to shares for a slight return boost.
Typical returns: 2-4% p.a. over five years. After tax at a 28% PIR, that's roughly 1.4-2.9% p.a. With NZ inflation averaging around 2-3% over the long term, a defensive fund may deliver close to zero real return after tax (Disclose Register, Stats NZ).
Volatility: Very low. In the worst years, a defensive fund might lose 1-3%. In most years, returns are positive but modest.
Who it suits:
- People withdrawing from KiwiSaver within the next 1-3 years (first home purchase or retirement)
- People who cannot tolerate any significant loss in their balance
- A temporary option while you decide on a longer-term fund
Who it does not suit:
- Anyone with more than 5 years until they need the money. Over long periods, the low returns mean your balance grows slowly and may not keep up with the cost of living.
Top defensive funds (5-year returns to December 2025): Simplicity Defensive (3.1%, 0.31% fee), Kernel Conservative (3.0%, 0.25% fee), ANZ Cash (2.8%, 0.45% fee) (Disclose Register, Morningstar).
Conservative funds
Conservative funds add a small slice of shares to a mostly fixed-income portfolio. They're a step up from defensive in both return potential and risk.
What they invest in: 65-85% in bonds and cash, with 15-35% in shares and listed property. The share component provides some growth while the bond component provides stability.
Typical returns: 3-5% p.a. over five years. After tax at a 28% PIR, that's roughly 2.2-3.6% p.a. (Disclose Register).
Volatility: Low to moderate. In a bad year, losses of 3-8% are possible. Recovery from downturns is faster than for growth funds because the fixed-income component cushions falls.
Who it suits:
- People 3-5 years from needing their money
- Retirees who want some growth but can't afford a large drop
- People in their late 50s or early 60s transitioning from growth funds before retirement
Who it does not suit:
- Young people with 20+ years until retirement. The low expected return means you're giving up significant compounding growth.
Top conservative funds (5-year returns to December 2025): Milford Conservative (4.6%, 0.85% fee), Generate Conservative (4.3%, 0.93% fee), Simplicity Conservative (3.7%, 0.31% fee) (Disclose Register, Morningstar).
Balanced funds
Balanced funds split roughly evenly between growth and income assets. They're the most popular KiwiSaver fund type in NZ, holding more money than any other category (Disclose Register).
What they invest in: 35-63% in shares and listed property, 37-65% in bonds and cash. The mix aims for moderate growth with some protection against big drops.
Typical returns: 5-7% p.a. over five years. After tax at a 28% PIR, that's roughly 3.6-5.0% p.a. (Disclose Register).
Volatility: Moderate. In a bad year, losses of 8-15% are possible. The 2020 COVID drop saw balanced funds fall around 8-12% before recovering within several months (Morningstar).
Who it suits:
- People 5-10 years from needing their money
- People who want more growth than conservative but aren't comfortable with full growth-fund volatility
- A reasonable middle-ground option if you're unsure
Who it does not suit:
- Young people with 25+ years until retirement. Over that timeframe, the data suggests a growth or aggressive fund is likely to deliver a better outcome, even accounting for downturns.
- People withdrawing in the next 2-3 years, where a bad year could significantly reduce the amount available.
Top balanced funds (5-year returns to December 2025): Milford Balanced (6.8%, 0.95% fee), Generate Balanced (6.5%, 1.01% fee), ANZ Balanced (5.8%, 0.75% fee), Simplicity Balanced (5.7%, 0.31% fee) (Disclose Register, Morningstar).
Growth funds
Growth funds invest primarily in shares. They're designed for long-term investors who can ride out short-term drops in exchange for higher expected returns.
What they invest in: 63-90% in shares (NZ, Australian, global), listed property, and sometimes infrastructure. 10-37% in bonds and cash for some stability.
Typical returns: 7-9% p.a. over five years. After tax at a 28% PIR, that's roughly 5.0-6.5% p.a. (Disclose Register).
Volatility: High. In a bad year, losses of 15-25% are possible. During the global financial crisis, some NZ growth funds fell over 30%. During COVID-19, drops of 15-20% happened in a few weeks but most recovered within 12-18 months (Morningstar).
Who it suits:
- People 10+ years from needing their money
- People in their 20s, 30s, and 40s building their KiwiSaver balance
- People who can tolerate seeing their balance drop 20% in a bad year without panicking and switching funds
Who it does not suit:
- People withdrawing within the next 5 years
- People who would switch to a conservative fund during a downturn (this locks in losses)
Top growth funds (5-year returns to December 2025): Milford Active Growth (9.2%, 1.03% fee), Generate Growth (8.7%, 1.08% fee), Kernel Growth (8.0%, 0.25% fee), Simplicity Growth (7.8%, 0.31% fee) (Disclose Register, Morningstar).
Aggressive funds
Aggressive funds are the highest-risk, highest-expected-return option. They invest almost entirely in shares with little or no fixed income.
What they invest in: 90-100% in shares. Some hold a small amount of cash for liquidity, but the portfolio is essentially all equities, usually with a heavy weighting toward global markets.
Typical returns: 8-10% p.a. over five years. After tax at a 28% PIR, that's roughly 5.8-7.2% p.a. (Disclose Register).
Volatility: Very high. In the worst years, losses of 20-35% are possible. This is the price of the highest expected long-term return. If you hold through downturns, history shows markets recover, but it can take 2-5 years (Morningstar, S&P Dow Jones Indices).
Who it suits:
- People 15+ years from needing their money who want maximum growth
- People in their 20s and early 30s with a long time horizon and genuine comfort with big short-term swings
- People who already have significant savings outside KiwiSaver and can afford to take more risk with this portion
Who it does not suit:
- Anyone who would lose sleep over a 30% drop in their balance
- People within 10 years of retirement or a first home withdrawal
- Anyone using their KiwiSaver as their primary emergency fund (which it shouldn't be, since it's locked in until 65 or first home)
Top aggressive funds (5-year returns to December 2025): Milford Aggressive (9.8%, 1.06% fee), Generate Aggressive (9.3%, 1.11% fee), Kernel High Growth (9.1%, 0.25% fee), Simplicity High Growth (8.6%, 0.31% fee) (Disclose Register, Morningstar).
How fund types compare over time
The table below shows what a $10,000 starting balance would have grown to over 5, 10, and 20 years at the midpoint return for each fund type (before tax, after fees). These are illustrative only and assume consistent returns, which doesn't happen in practice (Disclose Register, Morningstar).
| Fund type | Mid-range return | After 5 years | After 10 years | After 20 years |
|---|---|---|---|---|
| Defensive | 3.0% | $11,590 | $13,440 | $18,060 |
| Conservative | 4.0% | $12,170 | $14,800 | $21,910 |
| Balanced | 6.0% | $13,380 | $17,910 | $32,070 |
| Growth | 8.0% | $14,690 | $21,590 | $46,610 |
| Aggressive | 9.0% | $15,390 | $23,670 | $56,040 |
The compounding effect is dramatic over 20 years. A growth fund at 8% p.a. turns $10,000 into $46,610, while a defensive fund at 3% turns it into $18,060. That's a $28,550 difference on a single $10,000 investment. With ongoing contributions, the gap widens even further.
The role of your time horizon
Your time horizon, how many years until you need the money, is the single most important factor in choosing a fund type. The longer you have, the more time your fund has to recover from downturns and the more you benefit from higher-growth investments.
| Years until you need the money | Commonly suitable fund type | Why |
|---|---|---|
| 0-3 years | Defensive or conservative | Not enough time to recover from a downturn |
| 3-5 years | Conservative or balanced | Some growth potential with limited downside risk |
| 5-10 years | Balanced or growth | Enough time to ride out most downturns |
| 10-20 years | Growth | Strong compounding, time to recover from worst-case scenarios |
| 20+ years | Growth or aggressive | Maximum compounding, short-term drops are irrelevant |
These are general guidelines, not rules. Your personal comfort with risk matters too. A 25-year-old who panics and switches to cash during every market dip would be better off in a balanced fund they can stick with than a growth fund they'll bail out of at the worst time.
Worked examples
Example 1: Young professional, 35 years to retirement
Jordan is 30, earns $75,000, and contributes 3% to KiwiSaver. Jordan has a current balance of $25,000 and won't need the money until age 65.
Projected balance at 65 by fund type (assumptions: $2,250/year employee contribution growing at 2% with salary, $2,250/year employer contribution, $521 government contribution, returns at mid-range for each type):
| Fund type | Projected balance at 65 |
|---|---|
| Conservative (4% return) | ~$345,000 |
| Balanced (6% return) | ~$530,000 |
| Growth (8% return) | ~$820,000 |
| Aggressive (9% return) | ~$985,000 |
The difference between conservative and growth is roughly $475,000 over 35 years. That's the cost of being in a lower-return fund type when you have decades to invest.
Example 2: First home buyer, 5 years away
Priya is 28 with $35,000 in KiwiSaver. She's saving for a first home and expects to withdraw in about 5 years.
If Priya stays in a growth fund (8% expected return), her balance could grow to roughly $51,400 over 5 years. But in a bad year, it could drop to $24,500-$28,000.
If Priya switches to a balanced fund (6% expected return), her balance could grow to roughly $46,800. In a bad year, it might drop to $29,800-$32,200.
If Priya switches to a conservative fund (4% expected return), her balance could grow to roughly $42,600. In a bad year, it might drop to $32,200-$33,950.
The trade-off: more growth potential versus a wider range of outcomes. For a first home withdrawal with a fixed timeline, many people prefer the predictability of a conservative or balanced fund.
Example 3: Approaching retirement, 5 years out
Dave is 60 with $280,000 in a growth fund. He plans to retire at 65.
Over 5 years, his growth fund might return 8% p.a., growing his balance to roughly $411,000. But a severe downturn (like 2008) could drop it to $196,000-$224,000 right when he needs it.
Switching to a balanced fund (6% return) might deliver roughly $375,000, with a worst case of around $238,000-$257,600.
Switching to a conservative fund (4% return) might deliver roughly $341,000, with a worst case of around $257,600-$271,600.
Dave has more money at stake, so the dollar amounts of potential losses are much larger. A 30% drop on $280,000 is $84,000. This is why many people de-risk as they approach retirement.
Common questions
What KiwiSaver fund type is best for my age?
Your age matters because it determines roughly how long until you'll access the money. If you're under 40 and not planning to withdraw for a first home soon, a growth or aggressive fund has historically delivered the best long-term outcome. If you're 55-65, shifting toward balanced or conservative can reduce the risk of a large loss close to withdrawal. There's no single correct answer, as it depends on your specific withdrawal timeline and risk tolerance.
What's the difference between growth and aggressive?
Growth funds typically hold 63-90% in shares, while aggressive funds hold 90-100%. The practical difference is that aggressive funds drop further in bad years (potentially 25-35% vs 15-25% for growth) and recover higher in good years. Over 20+ years, aggressive funds are expected to return slightly more, but the additional volatility means they're only appropriate if you genuinely won't need the money for a long time and can stomach big short-term swings.
Can I split my KiwiSaver across multiple fund types?
Not within a single provider in most cases. Each KiwiSaver provider typically lets you choose one fund (or sometimes a mix of their funds). If you want a 50/50 split between growth and conservative, some providers offer that as a custom option. You can't be in two separate KiwiSaver schemes at the same time, as KiwiSaver rules allow only one active scheme per person (KiwiSaver Act 2006).
What happens if I'm in the wrong fund type?
If you're in a conservative fund at age 25 with 40 years until retirement, you could be missing out on hundreds of thousands of dollars in growth over your lifetime. If you're in an aggressive fund at age 63 and the market drops 30%, you could retire with significantly less than expected. The good news is that switching is free, takes about 10 business days, and you can do it at any time (FMA).
Does my fund type affect my KiwiSaver first home withdrawal?
Not directly. You can withdraw from any fund type for a qualifying first home. But your fund type affects how much is available when you withdraw. If you're in a growth fund and markets drop before your planned purchase, you'll have less to withdraw. Some first home buyers switch to a more conservative fund 1-2 years before they plan to buy to reduce that risk.
Should I change fund types during a market downturn?
Generally, no. Switching from growth to conservative after a market drop locks in your losses. You sell your shares at the low point. By the time you switch back (if you do), the market may have already recovered. The biggest gains often happen in the first few weeks of a recovery (Morningstar). If you're tempted to switch during every downturn, you may be in a fund type that's too risky for your risk tolerance.
What if I don't know what type I'm in?
Check your KiwiSaver provider's website or app. Your annual member statement also shows your fund type. If you've never actively chosen, you may be in your provider's default fund, which is typically a balanced or conservative fund depending on the provider. The FMA's KiwiSaver default fund settings changed in 2021 to balanced (previously conservative) (FMA).
How often do fund type categories get updated?
The FMA's fund type classification system was last updated in 2017 with more specific growth/income asset ranges. Fund types are based on the actual asset allocation of the fund, which providers report quarterly to the Disclose Register. If a fund significantly changes its asset mix, its classification may change, but this is rare (FMA, Disclose Register).
What to do next
- Compare specific KiwiSaver funds by returns and fees within each fund type
- Use our decision framework to figure out which fund type matches your situation
- See how your KiwiSaver contribution rate affects your take-home pay
- Calculate your take-home pay after PAYE, ACC, and KiwiSaver
Last updated: 28 February 2026. Sources: Disclose Register (disclose-register.companiesoffice.govt.nz), FMA (fma.govt.nz), Morningstar, Sorted Smart Investor (smartinvestor.sorted.org.nz), S&P Dow Jones Indices, IRD (ird.govt.nz), Stats NZ. Fund returns are after fees and before tax, for the five years to 31 December 2025. This is financial information, not financial advice.
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This is educational content, not financial advice.