Three million, three hundred and ninety thousand New Zealanders have a KiwiSaver account. Between them, $123 billion is invested across 38 schemes and over 400 funds (1). Most of those accounts started the same way: the person signed up for their first job, a default fund was picked for them, and nothing changed after that.
The default probably isn’t your best option if your horizon is long. The difference between a Balanced fund and a Growth fund over a 30-year career, at today’s contribution rates, is tens of thousands of dollars in retirement. That’s not a rounding error.
This is a plain-English guide to NZ KiwiSaver fund types, how to work out which one fits your situation, and what SortMe flags about your fund the moment you connect your account. Nothing here is personalised financial advice — it’s general information. For anything more than a sense-check, a licensed financial advisor is the right call.
The five fund types, in order of risk
KiwiSaver funds are categorised by how much of the fund is invested in “growth assets” (shares and property) versus “income assets” (bonds and cash). The more growth assets, the more the fund moves up and down in the short term and the higher the expected long-run return.
Defensive / Conservative: roughly 10–35% in growth assets. Low volatility, low long-run return. Often where people land when they’re close to withdrawing — a first-home purchase, or age 65 — or when they know short-term falls would be hard to stomach.
Moderate: 35–50% in growth assets. A halfway house. Rare as a good answer; most people using Moderate would be better in either Conservative (if horizon is short) or Balanced (if horizon is long).
Balanced: 50–65% in growth assets (2). The NZ default. If you were auto-enrolled and didn’t choose, you’re probably here.
Growth: 65–85% in growth assets. Typically suits medium-to-long horizons (10+ years) where the ups and downs along the way are manageable.
Aggressive / High Growth: 85%+ in growth assets. Maximum exposure to share markets. Suits long horizons (15+ years) and a stomach for a bad year dropping the balance 20%+.
How to pick
A financial advisor is always the best option to help you make the right decision based on your circumstances — a 30-minute conversation with someone who can see the whole picture (horizon, income, other assets, goals) beats any generic framework. That’s doubly true if your balance is a healthy sum.
That said, if your KiwiSaver balance is still small, doing the thinking yourself isn’t having less of an impact — the fund choice you make today compounds for decades either way. So if you’d rather work it through yourself first, these three questions get most people to a defensible answer:
Question 1: How long until you’ll need the money?
If you’re saving toward a first home purchase in the next few years, a lower-volatility fund is often the right conversation to be having — a 25% drop the week before settlement is a real risk at the Growth end.
If you’re under 55 and saving for retirement at 65+, your horizon is 10–40 years depending on age. That’s long enough to absorb the volatility of a Growth or Aggressive fund and, historically, to earn meaningfully more than Balanced would.
Question 2: How would you actually feel if your balance dropped 30% in a year?
This is the honest question. Growth funds don’t just outperform slowly; they swing. The global financial crisis took about 40% off Growth funds in 2008. They recovered within a few years — but only for the investors who didn’t panic-switch at the bottom.
If you know you’d switch funds during a 30% drop, you probably shouldn’t be in a Growth fund, because switching at the bottom locks in the loss. In that case, Balanced is the honest choice.
Question 3: What’s your KiwiSaver actually for?
The first-home purchase horizon is different from the retirement horizon. A household might split approaches — one partner Growth for retirement, the other Conservative if they’re about to draw for a house deposit.
You can change your fund type as your horizon changes
One of the most under-appreciated facts about KiwiSaver: the fund type you’re in today isn’t a permanent decision. Most people treat their KiwiSaver fund like their bank — something they set up once and leave alone — and never realise they can move between fund types inside the same provider, usually in a few clicks.
The practical consequence: your fund should move as your horizon moves. A 28-year-old in Growth who, at 35, decides to buy a first home in two years has every reason to consider shifting to a lower-volatility fund. A 52-year-old in Balanced whose kids have left home and retirement is still 15 years out might have room to move the other way. These aren’t one-time decisions — they’re decisions worth revisiting every few years, and any time something material changes (new job, new house plan, a child, an inheritance, a relationship change).
Changing fund types within your existing provider is typically a form or a few clicks in the app — minutes to request, a few business days to take effect. Changing providers entirely is more involved: you apply to the new provider and they handle the transfer. Inland Revenue has the process documented (5).
The long-run cost of defaulting
Industry data consistently shows Growth funds outperforming Balanced by 1.5–2 percentage points annually over long periods (3). On a $50,000 starting balance plus $5,000/year contributions, compounding that difference over 30 years is a difference between roughly $650,000 and $520,000 at retirement. A six-figure gap, driven by a one-time choice most people never made.
This is the number SortMe flags when it sees a Balanced fund attached to a 30-year horizon. It’s not advice to switch — that’s the advisor’s job. It’s a flag that the conversation is worth having.
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Provider matters less than fund type — but not by much
Once you’ve landed on a fund type, the choice of provider matters too. Different providers charge different fees and have different performance records.
The broad picture (2026):
- Milford leads performance across most risk profiles, especially growth-oriented funds (4). Higher fees; has Consumer NZ People’s Choice since 2018.
- Simplicity offers index-tracking funds with some of the lowest fees in NZ (around 0.24% for Growth). Strong long-run net returns for cost-conscious investors.
- Kernel is a digital-first provider with some of the lowest fees in NZ for index-tracking funds. A strong fit for cost-conscious, long-horizon investors comfortable with an online-only experience.
- Pathfinder leads the ethical space and delivers competitive returns in the Growth category.
- Bank-default funds (ANZ, ASB, BNZ, Westpac, Kiwibank) are the most common landing spot and generally sit in the middle for returns with middle fees. It would be worth looking at alternatives if this is you.
The Sorted Smart Investor tool is the single best free resource in NZ for comparing the actual fund numbers side by side (2).
When to change your fund (and when not to)
Good triggers to review:
- After a material life change — new job, change in income, a kid, a house purchase in sight
- When you realise you’re in a fund that doesn’t match your horizon (the usual trigger: connecting SortMe and seeing it)
- When your provider’s fees are materially above the market and the returns don’t justify it
When not to change: during a market downturn, purely because the balance dropped. That’s when switching to Conservative locks in the loss.
What SortMe actually shows you about your KiwiSaver
When you connect your KiwiSaver provider to SortMe, we do the same thing we do for every other account you connect: we pull the provider and the balance, and we keep the balance up to date on a regular basis. Your KiwiSaver shows up alongside your savings, investments, and everything else — as another asset in your net worth.
What that unlocks:
- A single view of your money. KiwiSaver sits in the same picture as the rest, so you’re not logging into five apps to see where you stand.
- Balance tracked over time. You see the trajectory, not just today’s number, which makes it easier to notice when something’s off.
- A starting point for the bigger question. Seeing the balance in your Net Worth is often the prompt people need to ask whether the fund type still makes sense — and, if it’s worth it, to book a conversation with an advisor.
Charlotte Barraclough, Chief Customer Officer at SortMe, says, “It’s surprising how many people are on an underperforming KiwiSaver and/or the wrong fund. They are losing thousands without noticing. You can not roll it back; you need to fix it now, or you miss out.”
When to talk to a KiwiSaver specialist
For most Kiwis, the decision is simple enough that the Sorted Smart Investor tool (Not affiliated to SortMe) plus the framework above gets you there. A specialist’s help is worth it if:
- Your situation has two or more moving parts (business-owner income, inherited lump sum, divorce settlement, kids about to withdraw for a first home)
- You’re within 5 years of retirement and optimising the drawdown
- Your balance is large enough (generally $100k+)
SortMe’s KiwiSaver specialist partners all align with our customer-first values. So if you’re a SortMe user, we can match you with a KiwiSaver specialist for free.
The practical next step
Three things worth doing this week if you haven’t:
- Log into your KiwiSaver provider’s app and note your fund type, fees, and balance
- Compare against the Sorted Smart Investor tool (smartinvestor.sorted.org.nz) - Not associated with SortMe
- Connect your KiwiSaver to SortMe so it sits alongside the rest of your money, and the balance is tracked for you
See your KiwiSaver alongside everything else at sortme.com.
Sources
- New Zealand’s Top 10 KiwiSaver Funds, Canstar — canstar.co.nz/kiwisaver
- Compare KiwiSaver and managed funds, Sorted Smart Investor — smartinvestor.sorted.org.nz
- Moderate vs Balanced vs Growth Funds, MoneyHub NZ — moneyhub.co.nz/moderate-vs-balanced-vs-growth-funds
- Best Performing KiwiSaver Funds, MoneyHub NZ — moneyhub.co.nz/best-performing-kiwisaver-funds
- Changing to another KiwiSaver provider, Inland Revenue — ird.govt.nz/kiwisaver
