KiwiSaver guide

KiwiSaver is the one long-term investment almost every working New Zealander owns, and the one most of us pay the least attention to. For a lot of people the fund they are in was chosen for them by default when they started a job, and it has quietly been deciding their retirement number ever since.

There are only a handful of levers that really matter: the type of fund you are in, what it costs you in fees, how much you contribute, and whether your provider still suits where you are in life. This guide walks through each one.

Most of us never get advice on it

KiwiSaver is the largest investment most New Zealanders will ever own, and hardly any of us have had a conversation with anyone about it. Only 28% of New Zealanders accessed financial advice at all last year, which means nearly three in four went the whole year without talking to anyone. That is despite 63% of us thinking about our finances at least weekly.

The people who do get advice tend to end up with more. Research by the Financial Services Council found that New Zealanders who had received KiwiSaver advice held, on average, over 50% more in their accounts than those who had not.

Sources: FMA Access to Financial Advice Review, published March 2026. Financial Services Council, Money & You: Breaking Through the Advice Barrier, 2020. FMA KiwiSaver Annual Report 2025, figures as at 31 March 2025.

It is worth being straight about what that second figure does and does not show. It is an association, not proof that advice alone caused the difference. People who seek advice may already be more engaged with their money. But the behaviours that go with advice are the ones that build a balance: being in a fund that suits your timeline, contributing consistently, and staying put when markets wobble rather than switching at the worst moment.

That gap is the whole reason this guide exists, and the reason our KiwiSaver review is free. Fifteen minutes with someone who does this all day is not a big commitment, and for most people it is the first time anyone has looked at their KiwiSaver with them.

The fund you never chose

A quick word on the term "default fund", because it is often used loosely. A true default fund is where you land if you are auto-enrolled and never pick anything. That group is now small: default funds changed in December 2021, when the number of default providers dropped from nine to six and the default setting moved from conservative to balanced. Most people were moved or made a choice at that point.

The bigger issue is not the official default. It is the much larger group who are in a fund they never actively chose, or chose once years ago and have not looked at since. A balanced fund is a perfectly sensible place for some people and an expensive place for others, and nothing about being moved into one means it matches your timeline.

None of that means everyone should be in a growth fund. Someone three years from retirement, or saving for a house deposit next winter, has good reason not to be. The point is that it should be a decision, not an accident.

Your fund type: the biggest lever you have

Fund type is usually the single biggest decision in your KiwiSaver, and it is the one most often left on autopilot. The difference is not small.

Take a 30 year old earning $80,000, contributing 3.5% with a matching 3.5% employer contribution. At a conservative return of around 3% a year after fees and tax, they reach 65 with roughly $354,000. In a growth fund returning around 5.5% a year after fees and tax, the same contributions reach roughly $588,000, a difference of about $233,000 from a single setting. Start at 25 instead of 30 and the gap widens to over $350,000.

Illustrative example only, not a guarantee of returns. Figures assume constant contributions and fees over the full term. Past performance is no guarantee of future returns.

That does not automatically make growth the right answer. A growth fund moves up and down more along the way, and if you need the money in the next few years, to buy a first home for instance, a fall at the wrong moment matters a great deal. The question is not “which fund performs best” but “which fund suits how long I have and how I will react when it drops”.

As a rough guide, the longer until you need the money, the more time you have to ride out the bumps. Someone in their twenties saving for retirement has a very different timeline from someone buying a house next winter, and the two should not be in the same fund by accident.

What fees really cost you

Fees feel small because they are quoted as a fraction of a percent. They compound in exactly the same way returns do, which is what makes them worth checking.

For that same 30 year old, paying around 0.7% a year more than they need to costs close to $80,000 by the time they reach 65. That is a meaningful sum for a number most people have never looked up.

The caveat is that cheapest is not automatically best. A fund charging a little more that consistently delivers more after fees leaves you better off than a cheap fund that lags. Fees are one input, not the whole answer. What matters is the return you actually keep.

Your contribution rate

Your contribution rate is the lever you control most directly, and the one that is easiest to leave at whatever you picked years ago. Many people are still on the rate they chose in their first job, on a much smaller income.

Two things are worth knowing. First, your employer contributes alongside you, so your own contributions are not the only money going in. Second, small increases early are worth far more than large increases later, because everything you put in has longer to compound. Lifting your rate at the same time as a pay rise is the least painful way to do it, because the extra never lands in your account in the first place.

The right rate depends on what else you are doing with your money. If you are saving hard for a first home deposit or paying down expensive debt, more into KiwiSaver is not automatically the best move. That is exactly the sort of trade-off worth talking through.

Using KiwiSaver for a first home

For most first home buyers, KiwiSaver is the largest single piece of the deposit.

If you have been a KiwiSaver member for at least 3 years, you can withdraw most of your savings to put towards your first home, as long as a minimum of $1,000 remains in your account and the property will be your main home. Your deposit can then be made up from a combination of sources: savings, your KiwiSaver withdrawal, and gifts from family or friends.

Two things catch people out. The first is timing: a withdrawal takes time to process, and it needs to line up with your settlement date, not your offer date. The second is fund type, as above. Money you plan to spend in the next year or two, sitting in a fund that can fall sharply, is a real risk to your deposit.

If buying is the goal, our first home buyers guide covers the deposit and loan side in detail, and first home loans explains the lending options.

Frequently asked questions

Your KiwiSaver checklist

Five things worth knowing about your own KiwiSaver. Most people cannot answer more than two of them off the top of their head.

• Which fund type you are actually in, not what you think you chose
• What you are paying in fees each year, as a percentage
• Your contribution rate, and whether it still fits your income
• Whether your provider suits your timeline and what you are saving for
• If you are buying a first home, whether your fund matches when you need the money