KiwiSaver Contribution Rates Are Increasing

Small changes now can make a meaningful difference later

KiwiSaver contribution rates are set to increase over the next few years, and while the changes may look small at first glance, they could have a significant impact on how much New Zealanders have available in retirement.

From 1 April 2026, the minimum employee and employer KiwiSaver contribution rates will increase from 3% to 3.5%. From 1 April 2028, they are scheduled to increase again to 4%. Inland Revenue has confirmed that these increases will apply automatically for employees currently contributing at the default 3% rate, unless they apply for a temporary rate reduction. Inland Revenue [ird.govt.nz]

For many people, this will mean slightly less take-home pay in the short term, but more money going into KiwiSaver over the long term. For employers, it also means higher compulsory contribution costs and a need to ensure payroll systems are updated before the changes take effect. Inland Revenue [ird.govt.nz]

What is changing?

The changes are being introduced in two stages:

• From 1 April 2026: the minimum employee and employer contribution rates increase to 3.5% each.

• From 1 April 2028: the minimum employee and employer contribution rates increase again to 4% each.

If you are already contributing more than 3%, your own contribution rate may not change. However, if your employer is currently contributing at the minimum 3%, their contribution will generally need to increase to 3.5% from 1 April 2026. Inland Revenue [ird.govt.nz]

There is also a temporary rate reduction option for members who want to remain on 3% for a period of time. This can apply for between 3 and 12 months and can be reapplied for if needed. Inland Revenue [ird.govt.nz]

Why does this matter?

The increase comes at a time when personal retirement savings are becoming increasingly important.

New Zealand’s population is ageing, people are living longer, and the number of working-age people supporting each retiree is expected to reduce over time. This means future retirees may need to place greater emphasis on their own long-term savings, alongside New Zealand Superannuation and any other investments or assets they may have.

KiwiSaver is not the only part of a retirement plan, but for many New Zealanders it is one of the most accessible and consistent ways to build long-term wealth.

What it could mean over time

To show how much difference contribution rates can make, consider a simple example.

Assume a 35-year-old earns $100,000 per year and currently has a KiwiSaver balance of $20,000. If they and their employer each contribute 3%, and the portfolio earns an average return of 8% per year before fees and taxes, their projected KiwiSaver balance at age 65 could be approximately $606,339.

If both the employee and employer contribution rates increase to 4%, the projected balance could grow to approximately $766,808.

That is a difference of around $160,469 over 30 years.

These figures are illustrative only. Actual outcomes will depend on many factors, including investment returns, fees, tax, salary changes, contribution breaks, fund choice, market conditions, and how long the money remains invested.

The power of small increases

A 0.5% or 1% increase may not feel dramatic from pay to pay, but over decades it can make a meaningful difference.

This is because KiwiSaver benefits from regular contributions and compounding returns. The earlier additional contributions are made, the more time they have to grow. Employer contributions also add to this effect, particularly for those who remain in paid employment for many years.

For younger members, the impact of these increases could be especially valuable. For those closer to retirement, it may still be worth reviewing whether current contribution levels are aligned with the lifestyle they want in the future.

What should employees think about?

If you are an employee, now is a good time to review:

• your current KiwiSaver contribution rate;

• whether your fund type still suits your timeframe and risk tolerance;

• how the higher contribution rate may affect your take-home pay;

• whether you are on track for the retirement lifestyle you want;

• whether KiwiSaver should be supported by other savings or investment strategies.

For some people, contributing more may be appropriate. For others, cash flow, debt reduction, mortgage repayments, or other financial priorities may need to be considered first.

The important point is to make an informed decision rather than simply leaving your KiwiSaver settings untouched.

What should employers think about?

Employers should also prepare for the changes ahead.

From 1 April 2026, payroll systems will need to reflect the new 3.5% minimum contribution rate. Employers should also consider the effect of increased contribution costs on budgets, employment agreements, and staff communication.

For employers with younger staff, it is also worth noting that 16- and 17-year-old employees who are KiwiSaver members will become eligible for employer contributions from 1 April 2026, provided they meet the relevant requirements. Inland Revenue [ird.govt.nz]

Clear communication with staff will help avoid confusion and ensure everyone understands what is changing, when it is changing, and what options may be available.

A good time to review your retirement plan

The upcoming KiwiSaver changes are a useful reminder that retirement planning should not be left on autopilot.

Your KiwiSaver contribution rate is only one part of the picture. Your investment fund, retirement goals, age, income, mortgage position, expected lifestyle, and other assets all play a role in determining whether you are on track.

A small adjustment today can have a much larger effect over time, but it should still fit within your broader financial plan.