New Zealand and Australia look like similar countries until you compare how much money each one has saved for retirement. That single difference shapes almost everything else about how their economies work, and it is the main reason successful New Zealand companies keep ending up listed and headquartered overseas.
Australia has a compulsory superannuation system. Every employer in the country must pay an additional 12 percent of every wage and salary into a superannuation account on top of the worker’s pay. That rate has just stepped up from 11.5 percent to 12 percent in July 2025, and it has been climbing steadily for thirty years. Workers cannot opt out. The money is locked in until retirement.
The result, after thirty-three years of compounding, is a pool of about A$4.3 trillion. That is roughly 150 percent of Australia’s GDP. It is the fourth-largest pension pool in the world, behind only the United States, the United Kingdom and Canada, and it is growing so fast that Australia is expected to overtake Canada and become number two by 2031. The biggest single fund, AustralianSuper, manages A$410 billion on its own and is forecast to pass A$600 billion by 2030.
New Zealand has KiwiSaver. KiwiSaver was launched in 2007, fifteen years after Australia’s compulsory super. It is not compulsory. Workers can opt out. The default employer contribution is 3 percent, not 12. About 30 percent of working-age members do not currently contribute at all.
The total pool, after eighteen years, is about NZ$123 billion. That is roughly 30 percent of New Zealand’s GDP.
To put it in plain numbers: Australia has more than thirty times the retirement capital that New Zealand does, for a population only about five times the size. Per person, an Australian worker has roughly six times as much sitting in their retirement account as a New Zealand worker.
There are three reasons the numbers are so different. The first is timing. Australia’s system started in 1992. New Zealand’s started in 2007. Compounding does most of its work in the last decade, so a fifteen-year head start is worth far more than fifteen years of equal contributions would be.
The second is the contribution rate. 12 percent versus 3 percent. An Australian on the same wage as a New Zealander is putting four times more into their retirement account every payday, before either of them adds any voluntary contributions.
The third is compulsion. Australian super is not a choice. KiwiSaver is. Every New Zealander who has opted out, paused contributions, or withdrawn for a first home has reduced the size of the national pool. About NZ$1.8 billion was withdrawn from KiwiSaver for first-home purchases in the year to March 2025 alone. Australians cannot do that with their compulsory super.
Both systems are required to invest the money for the benefit of members. But a large pool of long-term, locked-in retirement money is also, by accident or design, the deepest source of growth capital a country has. It can fund infrastructure, back domestic banks, buy into property, and put money into private companies that are not yet big enough to list on a stock exchange.
Australian super funds do all of these things at scale. They hold close to a third of the short-term debt issued by Australian banks. They own large stakes in toll roads, airports, ports, and office towers. They are major investors in Australian-headquartered private companies. The biggest funds have built specialist teams to find and back unlisted Australian businesses, and they have the capital to write cheques of A$50 million, A$100 million, A$500 million when they need to.
KiwiSaver does almost none of this. Around 2 to 3 percent of KiwiSaver money is invested in private, unlisted New Zealand assets. The rest is invested in listed shares, a lot of it offshore in US index funds and the like, bonds and cash. The equivalent figure for Australian super is about 16 percent in private and unlisted assets.
The gap is not because KiwiSaver managers are timid or uninterested. It is structural. KiwiSaver members can switch providers at ten business days’ notice, which means fund managers have to keep enough liquid assets to meet redemptions at any time. Private company shares are illiquid, so the rules effectively penalise putting much money into them. The fee disclosure regime treats higher-cost private investments as a regulatory risk for managers. The Government is consulting on changes to all of this, but the rules as they stand do not encourage KiwiSaver to invest in New Zealand growth companies, and they do not allow it at scale.
The effect on businesses is direct. A New Zealand company that needs to raise NZ$20 million can usually find it domestically. A New Zealand company that needs to raise NZ$200 million usually cannot. There is no domestic investor base of the size and risk appetite required.
The same company in Australia has options. There are dozens of super funds with billions to deploy, specialist Australian private equity firms backed by super fund money, and a working IPO market on the ASX that can absorb a large listing. An Australian-headquartered growth company can typically stay Australian-headquartered all the way through to maturity, funded by Australian capital, listed on the Australian exchange, and selling to Australian and global customers.
A New Zealand company hits a ceiling much earlier. When the next round is too big for the domestic market, the founders go to Sydney or San Francisco. The capital they raise comes with conditions. Foreign investors typically want their investment held in a familiar jurisdiction, governed by familiar law, with a credible path to a US or Australian listing. Over a couple of rounds, the centre of gravity of the company moves offshore. By the time it is large enough to list, the parent entity is in Delaware or New South Wales, the listing is on Nasdaq or the ASX, and the New Zealand operation is a subsidiary rather than the head office.
This is what happened to Rocket Lab, which is now a Delaware company listed on Nasdaq, although it still launches from Mahia and employs around a thousand people in New Zealand. It is what is currently happening to Windcave, which has reincorporated in Arizona while keeping a 400-person payments terminal factory in Auckland. It happens often enough that it is no longer remarkable.
Capital is not the only reason companies move. Some, particularly in defence and aerospace, need a US legal entity to win US government contracts at all, and that pressure exists regardless of how much money is available at home. Australia, with its enormous capital pool, still loses companies to the United States for the same reason. But capital is the difference between a company that has to leave and a company that has a choice, and right now most New Zealand growth companies do not have a choice.
What New Zealand loses when this happens is not the operating business, which usually stays. It is the head office, the senior decision-making jobs, the future capital gains, the credibility benefit of being a listed-at-home success story, and most importantly the gravitational pull on the next generation of founders. When the country’s best companies all sit on overseas exchanges with overseas parents, the next ambitious founder assumes that is what success looks like, and plans accordingly.
Australia made a political choice in 1992 to force workers to save for retirement at a high rate, with no opt-out. Thirty-three years later, the country has accidentally built one of the largest pools of patient long-term capital in the world. A lot of it is invested offshore, because the pool is now larger than the Australian economy can comfortably absorb, but a meaningful share funds Australian companies, Australian banks and Australian infrastructure, and the share available to back Australian growth businesses is many times larger than anything New Zealand can match.
New Zealand made a different political choice in 2007. It set up KiwiSaver as an opt-in scheme with a low contribution rate and easy access for first-home buyers. The result, eighteen years later, is a pool of capital that is large by historical New Zealand standards but small by every other measure, and which is not structured or sized to fund the country’s own growth companies.
Until that changes, New Zealand will keep building good companies and watching them leave to be funded.
Do you think KiwiSaver should be reshaped to back more New Zealand growth companies, and is the 3 percent default contribution still the right level? Have your say in the comments below.
This article was written by AI, briefed to report the facts, hopefully without some of the bias people bring to the job π
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