Kiwi women are earning closer to what Kiwi men do than ever before. But their retirement balances tell a different story.
Over recent decades, meaningful progress has been made on New Zealand’s gender pay equity gap. It’s narrowed steadily from about 16.3% in 1998 to around 5.2% in 2025 — the lowest level on record.
Yet when it comes to retirement savings, equality has lagged far behind. Retirement Commission data shows men’s KiwiSaver balances remain materially higher than women’s, averaging a 25% gap overall that widens to 37% for those aged 56-65.
Clearly, progress on income hasn’t yet translated into progress on wealth. That gap reflects structural realities about how wealth is built over decades, not just what is earned in any given year. Among the most powerful of these structural forces is compound growth — particularly when income is uneven or interrupted.
This is a recurring focus in conversations we’re having with women across Hawke’s Bay, including at a recent Milford Women’s Wealth event. The questions may differ by stage or circumstance, but the underlying challenge is consistent: how to keep long-term financial progress on track when life and work are rarely predictable.
Why women’s wealth compounds differently
For many women, careers are not linear. Periods of part-time work, time out of the workforce, career changes and caregiving responsibilities all affect when and how consistently money is invested. Lower starting balances and interrupted contributions mean less capital in the system early on — precisely when compounding does its heaviest lifting.
Women also tend to live longer than men. That creates both an opportunity and a risk: more time for investments to grow, but also a longer retirement to fund. Small gaps early can compound into substantial shortfalls later if they are not actively managed.
The result is that women’s financial outcomes are often shaped less by income at any one point in time, and more by time itself — how long money is invested, how consistently it stays invested, and how well disruptions are planned for.
The compounding effect of good design
Long-term outcomes are shaped less by constant optimisation than by the strength of the systems underneath them. When time, discipline and risk are aligned, progress can continue even through periods of interruption, without the need for repeated course correction.
Cash flow ebbs and flows. Life intervenes. Even well-laid plans bend under pressure. What differentiates strong long-term outcomes is not perfect timing or uninterrupted growth, but structures that can absorb disruption without losing momentum. Systems designed with interruption in mind are more resilient — and more equitable — over time.
It rewards consistency over intensity, patience over precision. Crucially, it continues to work even when contributions pause.
A better long-term conversation
Closing the retirement wealth gap will not be achieved through income alone. It requires an understanding of how compounding works — and how its potential can be undermined by delay, inconsistency or reactionary decision-making.
For women in leadership roles, this has organisational consequences. The issue is no longer whether individuals can catch up, but whether the structures they operate within are fit for reality.
The most productive conversations are therefore not about short-term performance, but about structure, resilience and time. For women balancing work, personal life and long-term financial decisions, that shift in perspective can be the difference between progress that stalls, and progress that compounds.
This article does not take into account your investment needs or personal circumstances. It is not intended to be viewed as investment or financial advice. Past performance is not a reliable indicator of future performance. Investment involves risks, and returns can be negative as well as positive. Milford Funds Limited is the Issuer of the Milford KiwiSaver Plan and the Milford Investment Funds. Please read the relevant Milford Product Disclosure Statement at milfordasset.com. *Sources: Stats NZ; Te Ara Ahunga Ora Retirement Commission.
