Every year the New Zealand government spends well over $100 billion — on hospitals and doctors, on schools and teachers, on superannuation payments to retired New Zealanders, on roads and rail, on the courts, the police, the military, and hundreds of other services and programmes. This spending shapes daily life in ways most people never consciously notice — until something is cut, underfunded, or goes wrong.
Understanding how government spending works means understanding where the money comes from, how the government decides what to spend it on, how it goes through Parliament, and what the rules are that govern how much a government can spend and borrow. It also means understanding the persistent debate about whether New Zealand is spending the right amounts on the right things — and what it means to be running a deficit or aiming for a surplus.
Where the Money Comes From
The government's spending is funded primarily by tax revenue — income tax, GST, company tax, and the various other levies and duties described in the How Tax Works article. In the 2025-26 financial year, core Crown revenue is approximately $130 billion.
When revenue falls short of spending, the government borrows — issuing debt to financial markets in the form of government bonds. The Crown borrows on behalf of New Zealand, and investors — domestic and international — lend money by purchasing these bonds, expecting to receive interest and eventually have the principal repaid.
The balance between revenue and spending — the operating balance — is the central measure of fiscal performance. A surplus means spending is less than revenue; a deficit means spending exceeds revenue and the gap is being funded by borrowing.
The Scale of Government Spending
The core Crown expenses forecast for 2025-26 is approximately $150 billion — roughly half the entire New Zealand economy. As a share of GDP, core Crown expenses are around 33 percent — broadly in line with comparable developed economies though toward the higher end of New Zealand's own historical range.
The five largest areas of government spending from Budget 2025 are:
Social security and welfare — $25.5 billion The largest single area of spending. This includes New Zealand Superannuation — the universal payment to all New Zealanders aged 65 and over — which at around $24.7 billion dominates the category. Other welfare payments include Jobseeker Support, the Supported Living Payment, and Working for Families tax credits.
Education — $21.5 billion Covering early childhood education, primary and secondary schooling, tertiary education funding, and vocational training. The majority funds teacher salaries and school operations.
Health — significant and growing Health spending is one of the most rapidly growing areas of the budget. A multi-year arrangement across Budget 2024, 2025, and 2026 commits $16.68 billion in cost pressure funding for Health New Zealand — the agency responsible for running the public health system. The total health vote across the forecast period is in the range of $30 to $35 billion annually when all components are included.
Financial costs — $9.5 billion The cost of servicing the government's debt — interest payments on the bonds it has issued. As government debt has grown in recent years, debt servicing costs have become a significant and growing portion of total spending. Every dollar spent on interest is a dollar not available for services.
Law and order — $7.3 billion Covering police, courts, prisons, and the justice system. Prison expansion is a significant cost pressure — the Budget 2025 allocated $472 million toward expanding prison infrastructure as inmate numbers are projected to rise toward 11,000 by mid-2026.
The Budget: The Annual Decision
The government's spending decisions for each year are set out in the Budget — delivered by the Minister of Finance, typically in May, covering the financial year from 1 July to 30 June.
The Budget is the most significant political and financial event of the government's year. It sets out what the government will spend, on what, and how it will be funded — announcing new initiatives, funding increases, savings measures, and changes to tax settings.
Budget 2025, delivered on 22 May 2025 by Finance Minister Nicola Willis, was labelled "the Growth Budget." Its centerpiece was the Investment Boost — a new 20 percent upfront tax deduction for businesses investing in new assets. The Budget also directed significant new funding to health, education, law and order, and defence, funded partly by savings measures including the Equal Pay Amendment Act and other reprioritization across government.
Budget 2026 is scheduled for 28 May 2026 — shortly after the next election would need to be called. The Budget Policy Statement 2026, released in December 2025, sets out the government's fiscal strategy and priorities for the year ahead.
How the Budget Process Works
The Budget is not made on Budget Day — that is merely when it is announced. The process of building the Budget takes approximately twelve months.
Strategic phase (June to December) The government sets its fiscal strategy — how much it intends to spend in total, what its objectives are for the operating balance and debt levels, and what policy priorities will drive allocation decisions. This is reflected in the Budget Policy Statement, which must be tabled in Parliament by 31 March.
Bids phase (January to April) Government departments and ministers submit bids for new funding — proposals for new programmes, cost pressure relief, and capital investment. The Treasury analyses the fiscal implications and provides advice to Budget Ministers.
Decisions phase (April to May) Cabinet makes final decisions on the Budget package — which bids are funded, at what level, and what savings or reprioritization will fund new spending. Budget Ministers — the Prime Minister, Finance Minister, and Associate Finance Ministers — lead this process.
Budget Day The Finance Minister delivers the Budget speech in Parliament, tables the Estimates of Appropriations — the legal instrument authorizing the government to spend — and releases the full suite of Budget documents.
Parliamentary approval Parliament must approve the government's right to spend through passing Appropriation Bills. The Estimates are examined by the relevant select committees. This scrutiny is one of Parliament's most important accountability functions — though in practice the government's majority means it can pass its budget without change.
Appropriations: How Spending Is Authorized
The key legal concept in government spending is the appropriation — a Parliamentary authorization to spend public money on a specific purpose. The government cannot spend money it has not been appropriated by Parliament. Every programme, service, and initiative requires an appropriation.
Appropriations are organised into Votes — groupings of appropriations that are the responsibility of a particular minister. Vote Health, Vote Education, Vote Justice, Vote Transport — each Vote contains the appropriations for all the spending in that minister's portfolio area.
The Estimates of Appropriations, published on Budget Day, set out exactly what each Vote contains — how much money the government plans to spend on each appropriation, and what it is intended to achieve. The Supplementary Estimates, published later in the year, update appropriations to reflect changes that have occurred since Budget Day.
Fiscal Responsibility: The Rules of the Road
New Zealand's fiscal policy is governed by the Public Finance Act 1989 — legislation that established a framework of fiscal responsibility principles requiring governments to be transparent about their fiscal intentions and manage public finances prudently.
Key requirements include:
Fiscal strategy — the government must publish its long-term fiscal objectives (covering at least 15 years) and short-term intentions (covering at least 3 years) for revenue, expenses, debt, and the operating balance. These cannot simply be aspirational — they must be credible and consistent.
Operating balance — the government should aim for operating surpluses that, on average over time, ensure expenses are funded by revenue rather than borrowing. New Zealand has been running operating deficits in recent years. The current government's fiscal plan targets a return to surplus by 2028-29.
Debt — the government should maintain debt at prudent levels. Net core Crown debt is currently around 44 to 46 percent of GDP — elevated by the COVID-19 spending and subsequent fiscal pressures. The government's plan is to peak debt in the late 2020s and begin reducing it as a share of GDP.
Transparency — the Public Finance Act requires regular publication of economic and fiscal forecasts. The Budget Economic and Fiscal Update (BEFU) is released alongside the Budget in May. The Half Year Economic and Fiscal Update (HYEFU) is released in December. These documents are prepared independently by the Treasury — not by the government's political office — and are required to be honest assessments of the fiscal position.
Operating vs Capital Spending
Government spending is divided into two broad categories.
Operating spending covers ongoing expenses — teacher salaries, medical staff, benefit payments, departmental running costs, interest on debt. These recur year after year and are funded from revenue.
Capital spending covers investment in long-lived assets — new hospitals, school buildings, roads, rail infrastructure, IT systems. Capital expenditure creates assets that provide services over many years. Budget 2025 allocated $6.8 billion in capital expenditure to maintaining or upgrading assets across health, education, defence, and transport.
The distinction matters for fiscal management. Governments sometimes use capital/operating distinctions to manage the appearance of the fiscal position — classifying something as capital rather than operating reduces its immediate impact on the operating balance.
Social Investment: A Different Philosophy
A significant feature of the current government's approach to spending is the social investment framework — a philosophy of targeting government spending towards evidence-based interventions that are shown to prevent future costs rather than simply managing problems after they arise.
The Social Investment Agency, established by the current government, is developing tools to identify which interventions provide the best long-term return on government spending — particularly for vulnerable children, families with complex needs, and people at risk of long-term benefit dependence.
Budget 2025 allocated $275 million to social investment initiatives including a new Social Investment Fund. The philosophy is that spending money earlier — on early childhood intervention, family support, education support — prevents much larger costs later in the health, justice, and welfare systems.
The Deficit and the Path to Surplus
New Zealand has been running operating deficits — spending more than revenue — since the COVID-19 pandemic. The pandemic required the government to spend approximately $70.4 billion on health measures and economic support between 2020 and 2022 — the largest peacetime government spending programme in New Zealand's history.
The fiscal position was further weakened by elevated spending in subsequent years and by the economic downturn of 2024, when New Zealand's economy contracted and tax revenue fell below forecast.
The current government has been pursuing fiscal consolidation — constraining new spending, making savings across government, and limiting operating allowances for new Budgets. The goal is to return to an operating surplus by 2028-29.
Critics argue that the pace of fiscal consolidation is reducing public services faster than the economy can recover. The government's position is that returning to surplus and reducing debt is necessary to rebuild fiscal buffers that will be needed when the next economic shock — whether a recession, a natural disaster, or a global disruption — arrives.
Net core Crown debt is forecast to peak at around 46 percent of GDP in the late 2020s before declining. This is elevated by historical standards — New Zealand's debt before the pandemic was around 20 percent of GDP — but well below the levels carried by many comparable countries.
Government Borrowing
When the government spends more than it receives in revenue, it borrows. The New Zealand Debt Management Office within Treasury manages the government's debt — issuing bonds to domestic and international investors, managing the maturity profile of existing debt, and ensuring the government can always meet its financial obligations.
The cost of government borrowing is sensitive to New Zealand's credit rating — the assessment by international rating agencies of the government's ability to repay its debts. A lower credit rating would increase the interest rate the government must pay to borrow, increasing the cost of debt servicing and putting further pressure on the Budget.
New Zealand's credit rating is currently high — reflecting a strong institutional framework, transparent fiscal management, and an economy with good long-term fundamentals. Maintaining that rating requires prudent fiscal management over time.
Where New Zealand's Money Goes: Key Debates
Superannuation New Zealand Superannuation — the universal payment at age 65 — is the single largest component of social spending at around $24.7 billion per year. As New Zealand's population ages and the proportion of people over 65 grows, this cost will increase significantly. Debates about the sustainability of superannuation — whether the age of eligibility should be raised, whether means testing should be introduced, and how it should be funded — recur in every election cycle. The current settings are popular and no party is currently campaigning to change them significantly, though fiscal projections show the cost growing materially over the coming decades.
Health - Health spending is rising faster than the rest of the Budget — driven by an aging population, growing demand for services, wage pressures on clinical staff, and expensive new medicines and technologies. Health New Zealand, the agency created to run the health system, has faced significant financial pressures and management challenges since its establishment in 2022.
Infrastructure New Zealand has a significant infrastructure deficit — a gap between what needs to be invested in roads, hospitals, schools, water, and other assets, and what has actually been spent. Years of underinvestment have left aging assets requiring expensive renewal. The question of how to fund the necessary investment — through the budget, through public-private partnerships, through borrowing — is one of the most significant fiscal policy challenges.
Quick Q&A
What is the government's Budget and when does it happen? The Budget is the government's annual financial plan — setting out what it will spend, on what, and how it will be funded. It is delivered by the Finance Minister in Parliament, typically in May, covering the financial year from 1 July to 30 June.
What is an appropriation? A Parliamentary authorization to spend public money on a specific purpose. The government cannot spend money without an appropriation. The Estimates of Appropriations, tabled on Budget Day, set out all the government's planned spending for the year ahead.
What is the difference between a surplus and a deficit? A surplus means the government is collecting more in revenue than it is spending — money coming in exceeds money going out. A deficit means spending exceeds revenue and the gap is being funded by borrowing. New Zealand has been running deficits since the COVID-19 pandemic and is targeting a return to surplus by 2028-29.
What is net core Crown debt? The government's total borrowings minus its financial assets. It is the standard measure of government debt in New Zealand. Net core Crown debt is currently around 44 to 46 percent of GDP — elevated compared to pre-pandemic levels but well below many comparable countries.
What is the Public Finance Act? Legislation governing New Zealand's fiscal management framework — requiring governments to be transparent about fiscal intentions, manage debt prudently, and publish regular economic and fiscal forecasts. It is the legal foundation for responsible fiscal management.
Key Takeaway
Government spending in New Zealand funds the services and infrastructure that underpin daily life — healthcare, education, superannuation, social welfare, and much more. The Budget is the annual decision about how to allocate the $150 billion the government spends each year, constrained by the Public Finance Act's requirements for fiscal responsibility and transparency. New Zealand is navigating its way back from the large deficits incurred during the COVID-19 pandemic, targeting a return to surplus by 2028-29 while maintaining essential services. The central tensions — how much to constrain spending to achieve fiscal sustainability versus how much to invest to meet genuine social needs — are permanent features of New Zealand's political and economic debate.
Sources
Wikipedia — 2025 New Zealand Budget
Treasury New Zealand — Budget Economic and Fiscal Update 2025
Treasury New Zealand — Guide to the Budget Process
Treasury New Zealand — Fiscal Strategy
Treasury New Zealand — Budget Policy Statement 2026, December 2025
Beehive — A Responsible Budget to Secure NZ's Future (Budget 2025)
RNZ — Budget 2025 at a Glance: The Big Changes, Winners and Losers
Ministry of Health — Budget 2025 Vote Health
IMF — New Zealand: Staff Concluding Statement of the 2025 Article IV Mission