The Green Party's fully costed policies amount to $236.5 billion in new spending over the next four years, equivalent to $114,139 per household.

Social spending

Social spending is costed at $178.7 billion over four years, or $86,234 per household, by far the largest single category. Extending ACC to cover all injuries, disability and illness regardless of origin accounts for $96 billion of that alone, based on a 1988 Royal Commission estimate that the extension would cost roughly four times the existing scheme. Lifting benefits to "liveable rates" adds a further $27.6 billion.

On education, a universal student allowance to cover basic needs is costed at $14.4 billion, and free tertiary education up to a first degree at $8 billion, based on 257,000 students at an average $8,000 tuition fee. The party's proposed student loan write-off carries a $16.2 billion balance sheet impact, with no confirmed profit and loss impact separately available. Free early childhood education for all is costed at $5.4 billion, free school lunches for all kids in all schools at $2.2 billion, and expanding free apprenticeship programmes at $200 million.

Paid parental leave extended to 65 weeks, 39 more weeks, for an estimated 56,000 parents, is costed at $6.6 billion. Increasing Pharmac funding by 10 percent of the 2026/27 medicines budget adds $720 million, and writing off MSD debt a further $1.37 billion.

Economic development

Economic development spending is costed at $40.6 billion over four years, or $19,586 per household. The largest confirmed commitment is a nationwide rapid rail network, costed at $17.2 billion, based on the Green Party's own policy document covering light rail and rail links between Auckland and Tauranga, Christchurch and Dunedin, and Auckland to both Hamilton and Wellington. Comprehensive bus lanes in all cities are costed at $1.2 billion, using the party's own $707 million opex and $480 million capex figures, and EV subsidies at $337 million, based on reintroducing the Clean Car Discount scheme.

A further $9.4 billion is costed for tens of thousands of new public homes, based on forecast 2026/27 house-building spend and the maximum build rate achieved in 2023/24, alongside $21 million for a Certified Rental Warrant of Fitness.

Regional support commitments add $2.4 billion for the Te Rangatiratanga Trust, $2 billion for a new intergenerational fund, and $400 million for a Te Rākau restoration fund.

Energy policies add a further $3.05 billion, made up of Kiwipower ($980.6 million), expanding Warmer Homes ($969.8 million), solar on all public housing stock ($460 million), zero-interest solar loans ($428.7 million), community-owned energy ($200 million), and increased EECA funding ($12.4 million).

Using MBIE figures provided to Cabinet in 2023, we have estimated the Greens' plans to purchase 120 supermarkets to form a state-run supermarket chain at $4.7 billion, or $2,259 per household.

Environment and arts

Environment and conservation commitments total $1.6 billion over four years, or $747 per household. This includes $1.3 billion to expand Jobs for Nature, $200 million to introduce a price on agricultural emissions, $90 million to restore the Ministry for the Environment, and $13.5 million to increase funding for the EPA and community environment groups, based on a 10 percent uplift of the EPA's 2026/27 functions budget.

Government services

On government services, the Greens' policy to lift core public service pay by 10 percent is costed at $15.5 billion over four years, or $7,490 per household, applying the increase across the entire $38.8 billion public sector wage bill.

 (t) policies where we've taken parties' costings at face value.

(o) uncosted policies that we have had to cost ourselves. 

(d) policies where we have disputed parties' own costings.