Pitched as a way to give every New Zealand-born child a financial head start and to "take back" the banking system from Australian ownership.

The Policy: NZ First KiwiSaver and Banking Policy — May 2026 →

NZ First leader Winston Peters unveiled this two-part policy on 17 May 2026. It pairs a "KiwiSaver Generation" proposal — automatic KiwiSaver enrolment at birth with a one-off Crown contribution — with a plan to buy back the Bank of New Zealand (BNZ) from National Australia Bank and merge it with the state-owned Kiwibank to form a Crown-owned "National Bank of New Zealand". Peters frames it as reclaiming national wealth, not nationalisation; critics across the political spectrum and the finance sector call the bank buyback unaffordable and unlikely.

What it does:

• Auto-enrols every newborn New Zealand citizen in KiwiSaver and pays a one-off $1,000 Crown contribution at birth, described by the party as a once-per-lifetime sum meant to compound for decades. It would sit alongside NZ First's separate push for compulsory KiwiSaver, with combined employee-plus-employer contributions rising to 8% and eventually 10%.
• The $1,000 figure revives the original KiwiSaver "kick-start" the Clark government introduced in 2007 and the National government scrapped in 2015 to save about $125 million a year.
• KiwiSaver is already large: the regulator's 2025 annual report counted roughly 3.4 million members and about $123 billion in funds under management, so universal birth enrolment would add tens of thousands of new accounts each year (around 58,000 babies are born in New Zealand annually).
• Proposes the Crown buy BNZ from National Australia Bank and merge it with Kiwibank into a fully Crown-owned, commercially run bank. Peters argues the four Australian-owned banks control roughly 85% of the market; the Commerce Commission's 2024 personal banking market study likewise found the big four operate as a "stable, highly profitable, two-tier oligopoly" with no disruptive maverick.
• Funding would come from a new "Sovereign Banking Bond" sold to retail and KiwiSaver investors, long-dated Crown debt, limited commercial equity from the NZ Future Fund and ACC, and Kiwibank's existing capital. Peters says BNZ throws off more than $1.5 billion in annual cash earnings to help service the cost.

The result:

The policy is a 2026 election pledge, not government policy, so the question is feasibility. The KiwiSaver-from-birth idea polls well: a March 2026 Talbot Mills poll (reported by the NZ Herald) found about 76% support for a children's scheme with a government kick-start, with backing fairly even across party lines. The bank buyback is far more contested. Peters estimates BNZ could be bought for "something above $7.5 billion" and dismisses higher numbers as inflated, but Massey University banking professor Claire Matthews put BNZ's book value near $13.7 billion and warned a negotiated sale would need a premium on top. Finance Minister Nicola Willis called the plan "extremely reckless"; National's Chris Bishop labelled it "fantasy land stuff", citing estimates of $24-30 billion — which he said would consume roughly eight years of Crown capital spending that would otherwise go to roads, hospitals and schools. Infometrics principal economist Brad Olsen called it "headline-grabbing" rather than serious, questioning the funding and whether the public wants more money tied up in a state bank. Labour's finance spokesperson Barbara Edmonds also attacked the lack of funded detail. A core obstacle is that NAB is not a willing seller, which most analysts say would force a premium price; Simplicity founder Sam Stubbs and University of Auckland finance lecturer Gertjan Verdickt argue ownership is the wrong lever, with Verdickt citing research that state-owned banks tend to be less profitable, hold less capital and carry more credit risk.

The impacts to watch:

• Whether a state megabank would actually lower mortgage rates or fees, or simply swap an Australian-owned oligopoly for a government-owned one — the Commerce Commission's preferred fix was a better-capitalised, "disruptive" Kiwibank, not a buyback.
• How any buyback squares with the Crown's existing struggle to fund Kiwibank: a planned $500 million Kiwibank capital raise was scrapped in December 2025, underlining how hard new bank capital is to find.
• The long-run fiscal cost and risk of the "Sovereign Banking Bond" and Crown-debt funding model, and whether returns would beat the cost of borrowing.
• Whether reinstating a $1,000 birth contribution meaningfully lifts retirement balances given the sum is paid once and KiwiSaver's bigger lever is ongoing contribution rates.