Best KiwiSaver Funds in New Zealand

Best KiwiSaver Funds in New Zealand

Most people assume the brand on the door determines their KiwiSaver outcome. It isn't. We hold live fund-level data across the KiwiSaver market, and the pattern that jumps out is that most providers run several very different funds under the same name. Two people with identical balances at the same provider can end up tens of thousands apart at retirement, purely because one sat in a conservative fund and the other sat in a growth fund.

The other thing worth knowing early: the default contribution rate changed on 1 April 2026. It is now 3.5 per cent, not 3 per cent, for both you and your employer. If you were on the old default, it moved automatically, and you didn't have to lift a finger. It rises again to 4 per cent on 1 April 2028.

So this guide is about the decision that actually moves the needle, and the funds that have genuinely earned a look.

How We Researched This Guide

We built this from our KiwiSaver fund database, using figures from the Government's Disclose Register. Fees, fund sizes, risk indicators and five-year net returns all come from that tracking. For the rules side — contribution rates, the government contribution, first-home withdrawal, what happens at 65 — we went to Inland Revenue, the FMA, MBIE and Kāinga Ora, and to the KiwiSaver Act 2006, which is set out in full on legislation.govt.nz.

Two things surprised us. First, the government contribution halved on 1 July 2025 — it is now 25 cents per dollar, capped at $260.72 a year, and plenty of people are still working off the old $521 figure. Second, the top of our five-year return table is dominated by single-sector funds concentrated in United States shares, which are different products wearing the same KiwiSaver label. We've flagged that, honestly, rather than presenting it as a leaderboard.

ValueHub's Trusted Providers

We've researched the providers below — here are our picks for this category.

Simplicity

★ 4.9 ★★★★★ (592 Reviews)

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Simplicity is a nonprofit KiwiSaver and investment fund manager charging 0.25% p.a. across all six KiwiSaver funds. 100% owned by the Simplicity Foundation, a registered charity. Over 190,000 members. Seven rounds of fee cuts since launch in 2016. Fifteen percent of management fees donated to NZ charities. Founded by Sam Stubbs (ex-Tower Investments CEO, Goldman Sachs).

The Quick Summary (60-Second Version)

If you only read one part, read this:

• The default employee and employer rate is 3.5 per cent from 1 April 2026, rising to 4 per cent on 1 April 2028.
• Fund type beats provider choice. Conservative runs 10 to 34.9 per cent in growth assets; aggressive runs 90 to 100 per cent.
• Simplicity KiwiSaver Scheme charges the same 0.24 per cent a year on every open fund.
• Generate age-banded Stepping Stones options. Charges across the open funds run from 0.43 per cent to 1.27 per cent.
• The largest fund by value is the Milford KiwiSaver Active Growth Fund, with $8.96 billion invested.
• Switching providers is free and usually completes within a few weeks. Switching after a market fall locks in the loss.

Fund Type Is the Decision That Matters

The FMA sorts funds by how much they hold in growth assets — shares and property — versus income assets like cash and bonds. Defensive sits at 0 to 9.9 per cent growth. Conservative runs 10 to 34.9 per cent. Balanced is 35 to 62.9 per cent. Growth is 63 to 89.9 per cent. Aggressive is 90-100 per cent.

The FMA's own projection assumptions tell the story: 1.5 per cent for defensive, 2.5 per cent for conservative, 3.5 per cent for balanced, 4.5 per cent for growth, and 5.5 per cent for aggressive, all after fees and tax. Those are planning assumptions rather than promises, and they're adjusted for inflation at 2 per cent. But the direction is clear. Over decades, the asset mix does more work than anything else you control.

Here's the catch nobody mentions at sign-up. A conservative fund from one provider can hold a completely different mix from a conservative fund at another. Go by the product disclosure statement, not the fund's name. And if you're planning a first-home withdrawal in the next couple of years, a default balanced fund may not suit you — it can fall in value right before you need the money.

What the risk indicator actually tells you

Every fund carries a risk indicator from 1 to 7, reflecting how much its value moves around. Higher means higher potential return and more ups and downs. Even a 1 isn't risk-free, and the indicator says nothing about future performance. Use it to check a fund matches your timeframe, not as a ranking.

What the Numbers Look Like Across Three Providers

We pulled three providers with very different approaches: Simplicity, Generate and Milford. These figures are read from our own copy of the Government’s Disclose Register, the statutory source managers file against, all reported as at 30 June 2026.

The strongest five-year figure is the Growth Fund at 6.01 per cent a year, and the weakest is the Conservative Fund at 1.80 per cent a year. All six open funds charge the same 0.24 per cent a year, so the fund you choose does not change what you pay. That flat structure is unusual, and it's the main reason it keeps coming up.

Generate KiwiSaver runs 21 KiwiSaver funds open to new members, covering a wide spread of risk levels. At 30 June 2026 they held $10.26 billion for 235,227 investors. The funds run from risk level 1 to 5, so which fund you pick matters more than which scheme you are in. Charges across the open funds run from 0.43 per cent to 1.27 per cent. Its point of difference is age-banded Stepping Stones options, which shift your asset mix as you age without you choosing a new fund.

The largest fund by value is the Milford KiwiSaver Active Growth Fund, with $8.96 billion invested. The strongest five-year figure is the Milford KiwiSaver Active Growth Fund at 6.82 per cent a year, and the weakest is the Milford KiwiSaver Cash Fund at 2.55 per cent a year.

Why the top of the return table needs a health warning

The strongest two five-year net returns in the register are the Milford Aggressive Fund, in the AMP scheme, at 21.37 per cent a year and the US 500 Fund, in the SuperLife scheme, at 14.12 per cent a year. Treat the top of a five-year league table with care: a window that strongly favoured one market flatters whatever funds were concentrated in it. A diversified growth fund and a concentrated single-market fund are different products with different risk profiles, and past returns are not indicative of future performance.

Fees, and the One Mistake That Costs the Most

The total annual fund charge is the slice of your balance the provider takes each year, deducted from returns rather than billed to you. Because it's charged on the whole balance every year, it compounds against you the way returns compound for you. A fee that is one percentage point higher costs about $500 a year on a $50,000 balance, every year, and it grows as the balance grows.

But a cheap fund in the wrong category isn't a saving. A low-fee conservative fund held for 30 years will likely underperform a moderately priced growth fund over that horizon because the asset mix drives the outcome more. The fee is certain, and the return isn't — that's the argument for caring about it. The category is still the bigger lever.

The genuinely expensive behaviour is switching to a conservative fund after a market fall. That locks in the loss and removes the chance to recover. If you're unsure, the FMA notes you can leave existing savings where they are and send only new contributions to the new fund. There's no tax charge for switching, and your employer keeps contributing regardless of which provider you pick.

Questions You Might Have

Can I switch KiwiSaver providers, and does it cost anything?

Yes, at any time, and it's free. You apply to the new provider, and it arranges the transfer from your existing one — you don't need to contact the old provider yourself. In practice, it usually completes within a few weeks, and your money stays invested throughout.

How much do I need to contribute to get the full government contribution?

You need to put in at least $1,042.86 of your own money between 1 July and 30 June to receive the maximum $260.72. The government adds 25 cents for every dollar you contribute. Employer contributions and money moved from Australian schemes don't count towards that threshold.

Can I use my KiwiSaver for a first home?

Yes, if you've been a member for at least three years. You can withdraw your own contributions, your employer's contributions, the government contribution and your investment earnings, but at least $1,000 must stay in the account. You must intend to live in the property, and you may make this withdrawal only once.

What happens to my KiwiSaver when I turn 65?

You become eligible to withdraw everything, but there's no deadline. Your balance stays invested until you tell your provider otherwise, and you can take all of it, some of it, or none. If you keep working and want deductions to stop, you give your employer a Non-deduction notice (KS51).

I'm self-employed — can I still join?

Yes, but you're not automatically enrolled, so you have to sign up yourself. There's no employer contribution, which is the biggest difference from being employed. You still qualify for the government contribution on the same terms, provided your annual taxable income is $180,000 or less.

What Matters Most

The decision that changes your outcome isn't which brand is on the door. It's which fund type you're in, and whether you leave it alone long enough to work. Most providers offer several very different funds under one name, which is why fund choice matters more than provider choice.

Get the category right for your timeframe. Check the fee, because it's the one thing that's certain. Then stop checking the quarterly returns, because that's what leads people to switch at exactly the wrong moment.

If you're planning a first-home withdrawal soon, be honest about your timeframe and consider whether a balanced default fund is really where that money should sit.