KiwiSaver rate hike and fuel costs squeeze small business margins

Small businesses across New Zealand are navigating a period of heightened financial strain as the dual impact of increased KiwiSaver obligations and rising fuel prices begins to weigh on operational stability. Following the legislative changes introduced in Budget 2025, the default KiwiSaver contribution rate for both employees and employers rose from 3% to 3.5% on April 1, 2026. This 0.5% increase represents a direct rise in total employment costs, creating immediate pressure for firms already managing tight margins.

The adjustment is part of a broader government programme designed to enhance long-term retirement savings and support first-home buyers. However, the timing of the increase has coincided with a period of significant cash flow concerns for the small to medium enterprise (SME) sector. Data from the Prospa SME Sentiment Tracker survey conducted in March 2026 found that 17% of more than 500 surveyed businesses held less than a month of cash reserves. This lack of a financial buffer has left many organisations vulnerable to even marginal increases in fixed costs.

Impact on Employment and Operations

The increase in employer contributions is particularly impactful for service-based businesses where wages constitute a primary expense. A survey of businesses making KiwiSaver employer contributions found that 43% were not confident they could absorb the higher costs without making adjustments to their operations. These adjustments include potential impacts on future hiring, the ability to offer pay increases, or the necessity of reducing employee hours.

While the 3.5% rate is now the standard, a further increase to 4% for both employee and employer contributions is already scheduled for April 1, 2028. This planned trajectory has led many business owners to analyse their long-term labour costs more closely. For some, the immediate solution involves utilising the flexibility provided by Inland Revenue. Employees have the option to apply for a temporary rate reduction, allowing them to remain at a 3% contribution rate for a period of 3 to 12 months. In these instances, employers may choose to match the lower rate, providing temporary relief for both parties.

The Fuel Cost Burden

Compounding the pressure of retirement savings contributions is the sharp rise in fuel costs. In March 2026, 14% of businesses identified fuel as their largest operational cost, a significant increase from the 5% reported a year earlier. This trend is corroborated by MYOB pulse surveys conducted between March 20 and March 26, 2026, which indicated that 61% of SMEs consider fuel to be either critical or very important to their daily operations. The rising cost of transport and logistics is directly impacting the bottom line of firms across the country, particularly those in the freight, construction, and mobile service sectors.

This surge in fuel pricing and supply concerns has been linked to ongoing conflict in the Middle East, creating a volatile environment for businesses that rely heavily on transport. When combined with the 0.5% rise in KiwiSaver costs, the cumulative effect is a reduction in the discretionary capital available for business reinvestment.

Legislative Context and Government Contributions

The current environment follows a series of adjustments to the KiwiSaver scheme that began in mid-2025. On July 1, 2025, the maximum government contribution was reduced to $260.72, and eligibility was removed for individuals earning more than $180,000 annually. Conversely, the scheme was expanded to include 16- and 17-year-olds, who became eligible for government contributions at that time.

As of April 1, 2026, employers are also required to make contributions for eligible 16- and 17-year-old employees, further expanding the scope of payroll obligations. While these changes aim to foster a culture of saving from a younger age, they add to the immediate financial commitments of small business owners.