5 KiwiSaver Mistakes to Fix Before 30 June 2026 (NZ): The Tax & Fee Checklist

Wrong PIR, a missed top-up, fee drag and a fund that no longer fits — fix the five most common KiwiSaver tax and fee mistakes before the 30 June deadline.

The KiwiSaver year ends at midnight on 30 June. After that date a handful of decisions lock in for good — you cannot claim a missed government contribution retrospectively, and a wrong tax rate quietly compounds against you for another twelve months. This is the one fortnight a year where five minutes of admin is genuinely worth hundreds of dollars.

This guide walks through the five most common KiwiSaver mistakes before 30 June, the exact number to check for each one, and a before-30-June action plan you can run in an afternoon.

TL;DR: To get the full $260.72 government contribution for the 2026 KiwiSaver year you must put in at least $1,042.86 of your own money by 30 June 2026 ¹². The other four mistakes — wrong PIR, fee drag, a fund that does not fit your timeframe, and never reviewing — cost you quietly all year. Check all five before the deadline.

Mistake 1: Not contributing enough for the $260.72 top-up

This is the big, time-sensitive one. The government pays 25 cents for every $1 you contribute, up to a maximum of $260.72 per year — but only on the first $1,042.86 of your own contributions between 1 July and 30 June ¹³. To bank the full amount you need $1,042.86 of member money in by deadline day.

Two things trip people up. First, employer contributions, past government contributions and Australian transfers do not count toward the $1,042.86 — only money you put in yourself ². If you are a salaried employee on 3% and not earning much, your own contributions alone may fall short. Second, the figure changed: Budget 2025 halved the rate from 50c to 25c per dollar and cut the maximum from $521.43 to $260.72, effective 1 July 2025 ³⁴. If you are working off last year's numbers, you are aiming at the wrong target.

A common reason people fall short is not realising the rules changed in 2025: the top-up is now half the size it used to be.

How much do I need to contribute by 30 June?

The fix is a one-off voluntary top-up. Log into your provider, check how much you have contributed this KiwiSaver year, and pay the difference as a lump sum before 30 June. Even if you cannot reach the full $1,042.86, every dollar you add still earns you 25c, so a partial top-up is never wasted ³.

Two other 2025 rule changes worth knowing

If your taxable income is over $180,000, you no longer receive any government contribution at all ⁵. And on the upside, 16- and 17-year-olds are now eligible (it used to start at 18) — so a working teenager contributing $1,042.86 also collects the $260.72 ⁶. Worth a word at the dinner table if you have one in part-time work.

Mistake 2: Sitting on the wrong PIR

Your Prescribed Investor Rate (PIR) is the tax rate on your KiwiSaver investment earnings. Get it wrong and you either overpay tax all year or end up with a bill from IRD. Unlike the top-up, this one costs you every year until you fix it.

There are three rates, set by your income over the last two tax years ⁸:

Source: Inland Revenue, PIR thresholds applying to the 2025/26 year ⁷.

The trap is the default rate of 28%. If you never told your provider your PIR, or they do not hold your IRD number, you are taxed at the highest rate — which over-taxes most lower and middle earners ⁹. A part-time worker who should be on 10.5% but sits on 28% is handing over more than double the tax they owe on their KiwiSaver earnings. Because PIR looks at the previous two tax years, your correct rate can also drop after a year of lower income (parental leave, study, a career break) — and it will not update itself ⁸.

What PIR should I be on?

Check your PIR against the table above, then update it directly with your provider in a couple of minutes. Not sure which side of a threshold you fall on? Our KiwiSaver health check will flag it.

Mistake 3: Paying more in fees than your fund earns you

Fees are the quiet tax. They come out whether markets rise or fall, and over thirty years a one-percent difference can carve a six-figure hole in a balance. The Sorted industry benchmark for a growth fund sits around 1.23% a year, yet several strong providers charge a fraction of that ¹⁰.

Here is what the gap looks like in dollars. Sorted's own Smart Investor tool models a $30,000 balance: in the Simplicity Growth Fund total combined fees are about 0.25% ($75 a year), against an average growth KiwiSaver fund at 1.07% ($319.70 a year) — a $244.70 difference, every year, on a modest balance ¹¹.

Sources: MoneyHub fund reviews and Simplicity's fees page, 2025/26 ¹⁰¹¹.

\* The InvestNow Foundation Series US 500 is a single-market US equity index option, not a diversified growth fund like the others in this table — useful as a low-fee building block but not a like-for-like comparison. † Simplicity's own fees page shows 0.24% from 1 September 2025; Sorted's Smart Investor tool above still displays the prior 0.25% pending update — both refer to the same fund.

A quick word on the different fee numbers in this post: they are not contradictory, they measure different things. The ~1.23% is Sorted's benchmark for the growth category, the 1.07% ($319.70) is Smart Investor's modelled average growth fund on a $30,000 balance, and the ~0.7% below is the FMA's average across all KiwiSaver funds (which includes lower-cost conservative and default funds).

The point is not "cheapest always wins." Milford's Active Growth fund charges more but has delivered market-leading long-run returns, and an ethical fund like Pathfinder costs more for a reason some people happily pay. The FMA notes KiwiSaver fees as a share of funds under management have stayed broadly stable at around 0.7% across all funds ¹³. What matters is that you know your number and that you are getting something for it. If you are paying 1.2% for a fund that quietly tracks the index, you are paying active prices for passive performance.

Mistake 4: Defaulting to a fund that does not fit your timeframe

A startling number of people are still in the fund they were auto-enrolled into years ago, or in a conservative default that made sense at signup and makes none today. The single biggest driver of your end balance — bigger than fees, bigger than the top-up — is being in the right fund type for your time horizon.

The rough rule advisers use: the longer until you need the money, the more growth assets you can hold, because you have time to ride out the dips.

The mismatch that hurts most is a young saver decades from retirement sitting in a conservative or default fund "to be safe." Over a long horizon, that caution is the risk — you give up years of compounding growth. ANZ's Growth fund, from the country's largest scheme by members, returned 8.20% a year over ten years to 31 May 2026 ¹⁴; Canstar's snapshot of top-10 funds shows the seven growth funds averaging 8.3% over the year to March 2026 ¹⁵. A defensive fund holding cash and bonds simply does not produce those numbers over time.

If you are within a few years of a first-home withdrawal or retirement, the opposite check applies — make sure you are not holding a growth fund you would be forced to sell in a downturn. Our KiwiSaver review matches your fund to your actual timeframe and risk appetite, across every major provider.

Mistake 5: Never reviewing after the 2025 rule changes

The last twelve months reshaped KiwiSaver more than any year in a decade, and most members have not adjusted a thing. If your KiwiSaver has been on autopilot since before mid-2025, at least three things have moved underneath you:

• The government contribution halved — from $521.43 to $260.72, with a new $180,000 income cut-off ³⁴⁵.
• Minimum contribution rates have risen — the default employee and employer rate stepped up from 3% to 3.5% on 1 April 2026 and is already in effect, with a further rise to 4% from 1 April 2028 ¹². Higher contributions are good for your balance, but worth budgeting for.
• Eligibility widened to 16- and 17-year-olds ⁶.

A review is not just a fund check. It is making sure your contribution rate, your PIR, your fund and your top-up all still line up with rules that have genuinely changed. This is exactly the work an adviser-led KiwiSaver review is for — and unlike a bank, we compare across every provider rather than steering you to one product.

Your before-30-June action plan

Run this checklist before the deadline. Most people finish it in under thirty minutes.

Source: Retirement Commission (Sorted), Inland Revenue ¹²⁷¹².

Only items 1 and 2 are hard-locked to 30 June, but the rest compound quietly, so the deadline is a good annual prompt to do all five at once. Five minutes on the KiwiSaver health check will surface any of these that need attention.

Who should get a review this year

Most people benefit from a once-a-year look, but a few situations make it close to essential before 30 June:

• You are a part-time worker, contractor or self-employed and not sure you have hit $1,042.86 yourself.
• Your income changed in the last two years — a pay rise, a baby, study or a career break can move your PIR.
• You have never checked your fees or do not know your fund type.
• You are within five years of a first home or retirement and may be in the wrong fund profile.
• You have a 16- or 17-year-old now eligible for the contribution for the first time ⁶.

Frequently asked questions

How much do I need to contribute by 30 June 2026 to get the full top-up?

You need $1,042.86 of your own contributions in the KiwiSaver year (1 July 2025 to 30 June 2026) to receive the maximum $260.72 government contribution ¹². Employer contributions do not count toward that $1,042.86.

Do I still get something if I cannot afford the full $1,042.86?

Yes. The government pays 25 cents per dollar you contribute, so any amount earns a top-up — you just will not reach the full $260.72 ³. A partial voluntary payment before 30 June is still worth making.

What PIR should I be on?

It depends on your income over the last two tax years: 10.5% up to $15,600, 17.5% up to $53,500, otherwise 28% (see the table above) ⁷⁸. If you never set a rate, you are likely on the default 28%, which over-taxes most people ⁹.

Are KiwiSaver fees really worth worrying about?

On a $30,000 balance, the difference between a low-fee growth fund (~$75/yr) and an average one (~$319.70/yr) is about $244.70 every year, and that gap compounds over decades ¹¹. Over a working life it is one of the largest single levers on your final balance.

Did the government contribution change?

Yes. From 1 July 2025 the maximum was cut from $521.43 to $260.72 and the match rate halved to 25c per dollar; anyone earning over $180,000 no longer qualifies ³⁴⁵.

What has happened to my contribution rate since April 2026?

The default minimum employee and employer rate rose from 3% to 3.5% on 1 April 2026 and is now in effect, with a further increase to 4% from 1 April 2028 ¹². Worth factoring into your budget.

General information, not personalised financial advice. Seek advice tailored to your situation before acting. Craig Smith Business Services Ltd (FSP712931), trading as Smiths Financial, holds a Class 2 licence issued by the Financial Markets Authority and is a member of the Financial Dispute Resolution Service (FDRS). Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 16 June 2026.