In a nutshell: New Zealand’s prosperity has grown over the past half‑century, albeit at much slower levels than our peers, but the foundations of that prosperity have become increasingly fragile. Economic gains have not translated evenly across regions, generations or households, and too much of the country’s wealth now rests on narrow, low‑productivity drivers. The result is an economy that struggles to deliver broad‑based opportunity, rising living standards and the public services New Zealanders expect. The challenge is not simply how much the country earns, but how it earns it — and whether its economic engine is capable of supporting the social contract it believes it has.
This blog reviews the Household Economic Surveys (HES) from 1974 and 2024. The inaugural 1974 survey marked the beginning of a systematic effort to measure household income, expenditure, assets and liabilities. While the survey has evolved, the 50‑year interval provides a rare opportunity to examine long‑run changes in income, spending, savings and wealth accumulation. Household wealth is defined here in financial terms: assets minus liabilities. Assets accumulate through saving, borrowing and investment; liabilities reflect the cost of financing those assets.
It examines how five decades of economic drift, policy shifts and demographic change have shaped the financial reality of New Zealand households — and what these changes reveal about who is truly better off today.
Household Incomes
| Category | 1974 Estimate (Constant $) | 2024 Estimate | Notes |
|---|---|---|---|
| Average Household Income | ~$70,000 | ~$125,000 | Driven by dual incomes |
| % Dual‑Income Households | ~20% | ~75% | Major structural shift |
| Housing Costs (% income) | ~15% | ~35% | Price growth + urbanisation |
| Food & Clothing (% income) | ~30% | ~20% | Services now dominate budgets |
| Savings Rate (% income) | ~15% | ~12% | Slight decline despite KiwiSaver |
The rise in wealth reflects a substantial increase in household incomes. Households can buy nearly twice as much with each dollar as they could in 1974. The most important driver of this income growth has been the shift to dual‑income households: from 20% in 1974 to 75% today. This has expanded purchasing power but also intensified competition for housing, pushing up prices. Mortgage servicing has risen from 15% to 35% of average household expenditure.
Income gains have not been evenly shared. Single‑income households have seen far smaller increases, and the decline in home ownership — from nearly 90% to 68% — has created a sharp divide between asset owners and renters. The Gini coefficient is a single number that summarises how unevenly income or wealth is distributed across a population, with 0 meaning perfect equality and 1 meaning complete inequality. While tax and welfare transfers have kept income inequality broadly stable (Gini coefficients around 0.30–0.39), wealth inequality has widened dramatically. The wealth Gini coefficient has risen from roughly 0.20 to 0.50, reflecting the centrality of home ownership in wealth accumulation.
Household Wealth
| Category | 1974 Estimate (Constant $) | 2024 Estimate |
| Housing Assets | $250,000 | $900,000 |
| Non Cash Assets | $80,000 | $200,000 |
| Cash/NearCash Assets | $20,000 | $60,000 |
| Total Assets | $350,000 | $1,160,000 |
| Household Debt | $40,000 | $300,000 |
| Household Equity | $310,000 | $860,00 |
The contrast between 1974 and 2024 reveals a profound reshaping of New Zealand household finances. In 1974, the average household held a modest asset base dominated by housing worth around $250,000 in today’s dollars, a further $80,000 in non‑cash assets, and $20,000 in cash or near‑cash savings. Debt levels were low, averaging just $40,000, leaving households with net equity of roughly $310,000. With home ownership at 87.5% and housing representing 88% of total wealth, most households shared in asset ownershgip and entered retirement with relatively secure balance sheets with the aim of a mortgage free house supported by the NZ superannuation benefit.
By 2024, the picture is both richer and more uneven. Total assets have more than tripled to around $1.16 million, driven overwhelmingly by housing, now valued at roughly $900,000 per household. Non‑cash assets have expanded to an estimated $200,000, reflecting deeper financial markets, higher vehicle and durable‑goods values, and the rise of KiwiSaver and other retirement savings schemes. Cash holdings have grown to about $60,000, consistent with higher incomes and greater liquidity. But these gains have come with a sharp rise in debt: average household liabilities have climbed from $40,000 to $300,000, largely due to mortgage borrowing required to access an increasingly expensive housing market.
The distributional implications are stark. Homeownership has fallen from 87.5% to 67.5%, and the wealth Gini coefficient has risen from 0.2 to 0.5, signalling a much more unequal distribution of assets. The wealth ratio between owners and non‑owners has more than doubled, from 2:1 to 4.5:1, underscoring how central property ownership has become to financial security. Housing now accounts for 74% of total household wealth — still dominant, but concentrated among a smaller share of households.
Taken together, these shifts show that while New Zealand households are far wealthier on average than they were 50 years ago, the pathway to that wealth has narrowed. Rising house values have inflated balance sheets for owners but left renters increasingly excluded. Debt has become a defining feature of household finances, and wealth inequality has widened as property has become both the primary engine of asset growth and the primary barrier to entry. The 1974 household average asset base was dependent upon housing but broadly based; the 2024 household is asset‑rich but unevenly so, with financial wellbeing now far more dependent on housing access, leverage and timing.
Tax Rates, Government Expenditure, Income distribution
Income tax on the average household has risen from 10–15% in 1974 to around 25% today. Social welfare spending has doubled in real per‑capita terms, from the growth in real terms of $20 billion to $40 billion, reflecting expanded programmes and greater generosity. This has helped stabilise income inequality despite rising pre‑tax disparities. Post‑tax income inequality was low in 1974 due to strong unions, high top tax rates and redistributive policies. Inequality rose during the reforms of the 1980s and 1990s but has stabilised since 2007 at around a Gini coefficient of 0.30–0.39. Transfers and tax credits have moderated disparities.
Are We better Off?
The twin engines of rising house values and dual incomes have transformed household balance sheets. Home ownership remains the primary determinant of wealth, not high incomes. Households earn more and spend more, but a larger share of income is absorbed by housing. Savings rates have slipped slightly despite KiwiSaver. Discretionary spending — education, travel, digital services, entertainment — reflects greater choice but also greater financial exposure.
Rising Household Incomes: Dual incomes and wage growth have expanded purchasing power. More households can afford goods and services once out of reach. Lower interest rates have supported borrowing and investment.
Access to Credit: Financial liberalisation enabled more households to buy homes, but rising mortgage debt has increased exposure to interest rate cycles. Homeowners have benefited from asset inflation; renters have not.
Technological Advancements: Digital tools and service‑sector innovation have created new opportunities, though gains have been concentrated in urban and high‑skill sectors.
But the benefits have not been universal:
Housing Affordability Crisis: Dual incomes, low interest rates, migration and supply constraints have pushed prices far beyond income growth. Homeowners have accumulated wealth; renters face rising costs and limited mobility.
Income Inequality: While post‑tax inequality remains moderate, mainly from social welfare transfers, pre‑tax inequality has risen. Lower‑income households face higher living costs without commensurate wage growth.
Regional Disparities: Urban centres have surged ahead; many rural regions have stagnated.
Generational Divide: Older, property‑owning households have captured most wealth gains. Younger households face high housing costs, student debt and limited access to asset accumulation.
The reliance on rising house values to maintain living standards has left households vulnerable. With future price growth uncertain and demographic pressures mounting, the strategy of leveraging housing equity to finance consumption exposes households to greater risk in the event of an economic downturn. Economic progress has lifted incomes and expanded access to goods and services. Dual‑income households, easier access to credit and technological advances have improved living standards for many. Yet the distribution of these gains is uneven:
New Zealand’s challenge, then, is not simply to acknowledge these uneven gains but to confront the structural forces that produced them. A model built on rising house prices, expanding credit and dual‑income pressure cannot deliver broad‑based security for the next generation. The task ahead is to shift from a wealth system driven by asset inflation to one grounded in productive investment, higher wages and genuine economic capability. Only by rebuilding the underlying engine of growth can New Zealand ensure that rising living standards are shared, sustainable and resilient — and that the promise of opportunity remains real for every household, not just those who entered the property market early.