Employee and employer KiwiSaver contributions will lift to 3.5% from 1 April 2026, then to 4% from 1 April 2027, the government confirmed in a Beehive release on 19 June 2026. The change affects 99.5% of members — nearly everyone currently contributing at the minimum rate.

This is the first legislated increase to the minimum contribution rate in over a decade. The scheme's settings have been adjusted repeatedly since Labour established it in 2006: contribution rates tweaked, the member tax credit cut and restored, default fund settings reformed. But the baseline rate itself has been stuck at 3% since 2012.

How much is changing, and when

From 1 April 2026, both employee and employer minimum contributions rise from 3% to 3.5%. A year later, they move to 4%. The two-year stagger gives payroll systems — and employers, particularly smaller firms operating on tight margins — time to absorb the cost before the full rate hits.

The employer side deserves separate attention. Since 2012, employers have paid employer superannuation contribution tax (ESCT) on their KiwiSaver contributions — a 15.45% tax that washes out any tax advantage. Moving from 3% to 4% means the actual cost to businesses is real and unshielded. There is no tax break softening the step-up.

Budget 2025 and the bigger picture

The contribution increase sits alongside other changes made in Budget 2025. The annual government member tax credit — the Crown's top-up that matches member contributions — was halved to 25 cents per dollar, capped at $260.72 per year. That is a significant cut to the Crown's per-member subsidy. The government is asking members to do more of the accumulation work themselves through higher contributions.

The flip side: analysis by the Commission for Financial Capability published in May 2025 found that KiwiSaver balances could last 30% longer under these new settings than under the old ones. That reflects the power of compound growth — more money flowing in year after year over a working life builds substantially larger balances.

Default fund settings have also shifted over time. Since March 2020, members who don't actively choose a fund are placed in a balanced fund rather than a conservative one — an approach that lifts long-run expected returns for the roughly one-in-ten members who never actively select their investment.

What it means for you

For an employee on the median wage, the move from 3% to 4% over two years is a material hit to take-home pay. Balanced against that, the higher contributions accumulate faster — particularly for workers in the first half of their career, where compounding has decades to work.

For employers, the maths is straightforward: an additional 1% of wages, fully taxable under ESCT, on top of current obligations. Large employers with modern payroll systems will adjust quickly. Smaller operators — many still running manual or partly automated payroll — are the group the two-step timeline is most clearly designed to help.

Whether these changes land as a good deal for members depends heavily on individual circumstances: how long you've been contributing, which fund you've chosen, when you plan to retire, and what the cut to the tax credit means for your pattern of contributions. The government is simultaneously cutting its direct per-member subsidy while mandating higher private contributions — a trade-off with different implications for different people.

What the 99.5% figure confirms is that the April 2026 increase is not a small change affecting a specialist slice of the workforce. It applies to nearly everyone currently at the minimum rate.

IRD's operational guidance on the changes is available at ird.govt.nz/kiwisaver-changes.