KiwiSaver Contribution Rate Increase 2026 (NZ): What 3.5% Then 4% Means for Your Pay

KiwiSaver's default rate rises to 3.5% on 1 April 2026 and 4% in 2028. Here is the take-home-pay cost, the temporary 3% opt-down, and what it does to your balance.

The default KiwiSaver contribution rate has not moved since 2013. That changes this year. Under Budget 2025, the minimum employee and employer rate steps up from 3% to 3.5% on 1 April 2026, then again to 4% on 1 April 2028. For most working New Zealanders it is a notable change to their pay packet and their retirement saving, and it happens automatically unless you act.

This guide breaks down exactly what is changing, shows you the real dollar cost to your take-home pay through worked examples, explains the new temporary opt-down to 3%, and shows what the higher rate does to your balance at retirement.

What is the KiwiSaver contribution rate increase in 2026?

TL;DR: The KiwiSaver contribution rate increase 2026 lifts the default from 3% to 3.5% on 1 April 2026, then to 4% on 1 April 2028 — for both you and your employer. On a $70,000 salary the first step costs about $6.73 a week, and your employer matches it. You can apply to temporarily drop back to 3% for 3 to 12 months. ¹

The change applies to the minimum default rate. Employers must apply the new 3.5% minimum from the first pay date on or after 1 April 2026. ¹ Because the employer match is set at the same minimum, the total going into your account jumps too:

• Before 1 April 2026: 3% from you + 3% from your employer = 6% of gross pay
• From 1 April 2026: 3.5% + 3.5% = 7% of gross pay
• From 1 April 2028: 4% + 4% = 8% of gross pay

If you already contribute at 4%, 6%, 8% or 10%, nothing forces you higher — you stay where you are, and your employer matches at the new 3.5% minimum (then 4% from 2028). ¹² The default options available from 1 April 2026 are 3.5%, 4%, 6%, 8% or 10%. ¹²

Total KiwiSaver contribution by year

Total of employee + employer contribution as a percentage of gross pay. Source: Inland Revenue, Budget 2025. ¹

How much will the increase cost your take-home pay?

The 3% to 3.5% step is an extra 0.5% of your gross pay. That is the whole story for the first stage — half a percent. The jump to 4% in 2028 adds another 0.5% on top.

Here is the cost of the first step (3% to 3.5%) at common income levels. One thing to be clear about: your employee KiwiSaver contribution comes out of your after-tax pay, so the figures below are very close to the actual reduction in the money that hits your bank account — PAYE does not soften the blow the way it does for some other deductions. The amount your employer puts in rises by the same figure, so the total benefit to you is roughly double the cost.

For context, the latest Stats NZ figures put average weekly earnings (full-time-equivalent) at $1,716 and average ordinary-time hourly earnings at $44.12, up 3.1% on the year. ¹¹ At that average wage the 0.5% step is roughly $8.58 a week — less than the annual pay rise most people received over the same period.

It is often described as "another tax", but for a $70,000 earner the first step is under $7 a week of their own money, with an equal amount added by the employer on top.

By 2028, when both stages have landed, the same $70,000 earner contributes $2,800 a year (4%) instead of $2,100 (3%) — an extra $700 of their own pay, matched by another $700 from the employer.

Can you opt back down? The new temporary 3% reduction

Yes. Recognising that some households cannot absorb the increase right now, Inland Revenue has introduced a temporary rate reduction back to 3%. ²

The key details:

• From 1 February 2026 you can apply to IRD via myIR, phone or a web message. ²
• The reduction runs for a period of 3 to 12 months of your choosing. ²
• You must have no active savings suspension to apply. ²
• Applications received between 1 February and 31 March 2026 take effect from 1 April 2026, so you never have to contribute at 3.5% at all if you opt down in time. ²
• It is not permanent — you must reapply to extend beyond your chosen period. ²
• While you are on the temporary 3% rate, your employer may choose to match at 3% rather than 3.5%, but is not required to. Matching the reduced rate is discretionary; the employer's minimum obligation stays at 3.5% unless they elect to drop to 3%. ²

That last point matters. Opting down can cost you more than just your own contribution. If your employer also elects to drop to 3% (which they are allowed, but not obliged, to do), you give up that extra employer money as well. For a $70,000 earner, choosing the 3% temporary rate for a year costs about $350 of your own contribution — and up to a further $350 of employer money if your employer chooses to match the lower rate. Worst case, that is around $700 of retirement saving foregone; if your employer keeps contributing 3.5%, the cost is closer to $350. Either way it is a useful pressure valve in a tight year, not a default setting — and it is worth asking your employer what they intend to do before you apply.

You can change your rate at any time through your employer (the KS2 form), your provider, or in myIR. ¹² If money is genuinely tight, book a free KiwiSaver review before you opt down — there is often a better lever to pull.

How the rise affects your employer's costs too

This is not a one-sided change. From 1 April 2026 your employer's minimum contribution also rises to 3.5%, then 4% in 2028. ¹ For a business with a $2 million payroll, the first step alone adds around $10,000 a year in employer KiwiSaver, before ESCT.

Employer contributions are not paid in full into your account — ESCT (Employer Superannuation Contribution Tax) is deducted first. From 1 April 2025 the ESCT thresholds were aligned to the personal income tax brackets, and those bands are unchanged for the 2026–27 tax year. ESCT is charged on the employer's contribution at a rate set by your total annual cash remuneration (salary plus the employer's superannuation contributions): ⁸

Note there is no longer a 0% band, and the thresholds are based on total cash remuneration including the employer's contributions — so it is easy to mis-band yourself if you only look at base salary. ⁸

A worked example: if you earn $80,000 and your employer contributes 3.5% ($2,800), your total remuneration for ESCT (roughly $82,800) falls in the 30% band ($57,601–$84,000). ESCT at 30% takes about $840, so around $1,960 actually lands in your account. ⁸ The headline match is always a little bigger than what you receive — worth knowing when you project your balance. If you run a business and want to model the cost across your team, our employee benefits and group insurance service covers exactly this.

Do 16 and 17-year-olds now get employer contributions?

Yes — and this is an easy win that many families miss. From 1 April 2026, employees aged 16 and 17 who are enrolled in KiwiSaver and contributing become eligible for compulsory matching employer contributions for the first time. ³ (They already became eligible for the government contribution earlier, from 1 July 2025.) ³

If you have a working teenager with a part-time job, getting them enrolled and contributing means they pick up both the employer match and the government contribution. On a $12,000-a-year part-time wage at 3.5%, that is $420 of their own money, $420 from the employer (less ESCT), and a slice of the government top-up, compounding over a long horizon.

What does the government contribution add on top?

Separate from the rate change, Budget 2025 also halved the maximum government contribution to $260.72 a year (down from $521.43). ⁴ The government still pays 25 cents per $1 you contribute, and to get the full amount you must contribute at least $1,042.86 of your own money between 1 July and 30 June. ⁴

The good news from the rate rise: at the new 3.5% default, anyone employed and earning at least $35,000 a year automatically contributes enough (3.5% of $35,000 is $1,225) to clear the $1,042.86 threshold for the full $260.72. ⁴⁶ Below that, you may need to top up to reach the $1,042.86 threshold.

Two eligibility points to watch: you must be aged 16 to 65 and mainly living in NZ, and from 1 July 2025 anyone with taxable income over $180,000 no longer receives the government contribution at all. ⁵ People who are self-employed or who paused contributions mid-year can fall short of the full top-up without realising it, so it is worth checking before 30 June.

What does the rise do to your retirement balance?

KiwiSaver is a compounding system: small extra contributions, left for decades, become large sums. The FMA's KiwiSaver Annual Report 2025 shows total funds under management grew 10% to $123 billion across almost 3.4 million members, driven by $12.2 billion in member contributions and $6.4 billion in net investment returns. ⁹

A few realities to factor in when you project forward:

Balances vary widely by provider, age and fund type. Across the larger independent providers — the likes of Booster, Milford, Generate, Fisher Funds, Kernel and Simplicity — both fees and long-run returns differ meaningfully, which is why the scheme you are in matters as much as the rate you contribute at.

The single 3.5% step, on a $70,000 salary from age 35, adds roughly $350 a year of your money plus $350 employer — call it $700 of fresh contributions annually. In a growth fund earning a long-run return after fees, an extra $700 a year for 30 years can compound into tens of thousands of additional dollars at 65, depending on returns and fees. The 2028 move to 4% widens that gap further.

The lever that matters even more than the contribution rate is the fund you are in and the fees you pay. Moving from a conservative fund to a growth fund (if your timeframe suits it) typically does more for a 35-year-old's balance than the 0.5% contribution step. Run the numbers for your own situation with our KiwiSaver growth calculator, or have us check your fund, fees and PIR in a KiwiSaver review.

Your contribution-rate checklist

A short list of decisions worth making before 1 April 2026:

1. Confirm your current rate. Check myIR or your last payslip. If you are at 3% and do nothing, you move to 3.5% automatically.

2. Decide whether to stay at the new default or go higher. The options are 3.5%, 4%, 6%, 8% or 10%. ¹²

3. Check you will hit $1,042.86 between 1 July and 30 June to bank the full $260.72 government contribution. ⁴

4. Only opt down to 3% if genuinely necessary — remember your employer may also drop to matching at 3%. Apply via myIR from 1 February 2026. ²

5. Enrol any 16 or 17-year-old in the household who is working, so they pick up the new employer match from 1 April 2026. ³

6. Check your PIR is correct (10.5%, 17.5% or 28%) — an over-stated PIR overtaxes your returns. ⁷

7. Review your fund and fees — this usually moves the needle more than the rate step.

Frequently asked questions

When exactly does the KiwiSaver rate go up?

The default minimum rises from 3% to 3.5% on 1 April 2026, and employers must apply it from the first pay date on or after that date. It rises again to 4% on 1 April 2028. ¹

How much extra will I actually pay at 3.5%?

Just 0.5% of your gross pay more than now. On $70,000 that is about $350 a year, or roughly $6.73 a week — and because the contribution comes from your after-tax pay, that is close to the real drop in your take-home. Your employer adds the same amount on top. ¹¹

Can I stay on 3% instead of moving to 3.5%?

Yes, temporarily. From 1 February 2026 you can apply to IRD (via myIR, phone or web message) for a temporary 3% rate lasting 3 to 12 months, provided you have no active savings suspension. You must reapply to extend it. While you are on it, your employer may choose to match at 3% rather than 3.5%, but is not required to — so check what yours intends to do. ²

Do I still get the full government contribution at the new rate?

If you are employed and earn at least $35,000 a year, contributing at 3.5% automatically meets the $1,042.86 threshold for the full $260.72 government contribution. Earn less and you may need to top up. ⁴⁶

Will my employer's contribution really go up too?

Yes. The employer minimum rises to 3.5% in 2026 and 4% in 2028 alongside yours, though ESCT is deducted from the employer's share before it reaches your account. ¹⁸

Should I go higher than 4%?

Possibly. The available rates are 3.5%, 4%, 6%, 8% and 10%. Whether a higher rate suits you depends on your retirement goal, your timeframe, your fund choice and your other financial priorities. That is exactly the kind of question a review is for. ¹²

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.