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Interactive Lesson

How a government is formed

What happens after you vote

Choose your level

Winning the most votes doesn’t automatically make you the government. What matters is who can get the support of more than half of Parliament — at least 61 of the 120 seats.

Why coalitions happen

Under MMP, one party rarely wins 61 seats alone. So after the election, parties talk and team up to reach a majority together. This is a coalition.

The agreements

Parties write down what they’ve agreed — which policies they’ll support and which ministers each party gets. A smaller party might sign a “confidence and supply” deal to support the bigger party without fully joining.

Forming the government

Once a group can show it has 61+ seats, the Governor-General appoints its leader as Prime Minister. Use the tools below to combine parties into a majority.

Try it yourself

Seat Allocator
Move the party-vote sliders and watch the House fill.
120seats · 61 to govern
Largest party: National with 47 seats
National
38.0% · 47 seats
Labour
27.0% · 34 seats
Green
12.0% · 15 seats
ACT
9.0% · 11 seats
NZ First
6.0% · 7 seats
Te Pāti Māori
3.0% · 0 seats
Below the 5% threshold — no list seats
Other parties
5.0% · 6 seats
Build a Government
Using the real 2023 result, pick parties to reach the 62-seat majority.
62 = majority
0 seats
Select parties to begin…

The actual government formed in 2023 was National + ACT + New Zealand First (68 seats).

Test what you learned

Quick checkQuestion 1 of 4

How many seats are needed to govern?

Sources

Based on civics material from parliament.nz and the Electoral Commission (elections.nz). Non-partisan and free to use.