The New Zealand Parliament is the nation's legislative institution, responsible for making laws, scrutinising the executive, and representing voters. Today it operates as a unicameral body centred on the House of Representatives. Its decisions shape national policy, finance (supply), and domestic law, while its procedures reflect a Westminster heritage adapted to New Zealand’s political and constitutional context.
Structure and composition
Parliament is made up of elected members who sit in the House of Representatives. The electoral system is mixed-member proportional (MMP), which combines single-member electorate seats with party list seats to produce a proportional result. The chamber normally has 120 members, though the total can vary modestly because of overhang seats when a party wins more electorates than its proportional share.
- Electorate MPs represent geographical districts.
- List MPs are drawn from party lists to reflect overall party vote share.
- Committees of MPs examine bills, government activity and public petitions.
Powers, functions and procedures
Parliament’s principal functions are law-making, government oversight, and approving public expenditure. It debates and passes bills, examines ministers and policies through Question Time and committee work, and authorises the budget. Legislation becomes law after it passes the House and receives formal assent from the Governor-General as the Crown’s representative.
History and development
The institution traces its legal origins to the New Zealand Constitution Act 1852, enacted by the British Parliament, which established representative government. Initially bicameral, New Zealand once had an upper chamber, but the legislative structure was changed in the mid-20th century to the current single-chamber model. The adoption of MMP in the 1990s significantly altered party representation and encouraged coalition or confidence-and-supply arrangements.
Role in public life and notable features
Parliament is a focal point for civic debate, including matters affecting Māori and the Treaty of Waitangi, and for public scrutiny of the executive. Its modern practices include active select committees, public submissions on bills, and a parliamentary precinct in Wellington featuring both the historic Parliament House and the distinctive executive building commonly known as the Beehive.
For official information and resources about legislation, members and procedures visit the Parliament site: Parliament information. Details specific to the House of Representatives can be found here: House of Representatives.