Money · Credit · New Zealand · Part 14
How should New Zealand know whether its national balance sheet is actually getting stronger?
Debt matters. But debt alone cannot tell us whether a country is becoming wealthier, more productive or more resilient.
Over the last several parts of this series, we have moved from individual projects to public-investment institutions and then to national portfolio strategy.
That creates another question.
How do we know whether any of it is working?
A government can spend more money and still leave the country weaker.
It can also borrow more while leaving behind valuable assets and greater productive capacity.
So the scoreboard matters.
The objective is not to maximise spending or minimise debt. It is to strengthen the country's stock of useful assets, productive capacity and resilience relative to the obligations taken on.
First, an important terminology point
There is an official Crown balance sheet.
There is not a single government accounting statement called “New Zealand's national balance sheet” that captures everything the country owns and owes.
The Crown balance sheet covers central-government entities.
Treasury notes that it does not include local-government entities.
Treasury — Investment Statement 2025 ↗
And the country's total wealth is broader still.
It includes private businesses, households, local-government assets, natural resources, skills, knowledge, institutions and other forms of capital that do not sit neatly on the Crown's Statement of Financial Position.
So in this article, when I talk about the national balance sheet, I mean the broader question of whether New Zealand's public and productive asset base is becoming stronger.
The Crown balance sheet is one of the most important places to start.
What does the Crown currently own?
Treasury's 2025 Investment Statement gives the clearest detailed picture.
As at 30 June 2024, the Crown held approximately $571 billion of assets and $380 billion of liabilities.
That left total net worth of approximately $191 billion.
Treasury grouped those assets into three broad portfolios:
Social: $314 billion — including assets used for transport, housing, education and health.
Commercial: $99 billion — including commercially operated Crown assets such as energy companies.
Financial: $158 billion — including entities such as the Reserve Bank, ACC and the New Zealand Superannuation Fund.
Treasury — He Puna Hao Pātiki: Investment Statement 2025 ↗
That immediately shows why looking only at government debt is incomplete.
The Crown has liabilities.
It also owns a very large asset base.
What is the latest net-worth position?
The latest Treasury interim financial statements available as at 29 August 2026 reported net worth attributable to the Crown of $181.2 billion at 31 May 2026, equal to 40.2% of GDP.
Treasury — Interim Financial Statements to 31 May 2026 ↗
Budget 2026 forecasts net worth attributable to the Crown at $175.5 billion at June 2026, declining as a share of GDP over the next few years before beginning to recover.
The forecast falls from 38.8% of GDP in 2025/26 to 35.1% in 2028/29, then rises slightly to 35.6% in 2029/30.
Treasury — Budget Economic and Fiscal Update 2026 ↗
That tells us something important about fiscal position.
But it still does not tell us everything we need to know about whether the assets themselves are getting better.
Net worth is useful — but it can move for reasons that do not improve public services
Between 2014 and 2024, Crown assets increased from $257 billion to $571 billion.
That sounds like an extraordinary expansion of public wealth.
But Treasury shows that a large share of the increase in physical-asset values came from revaluations.
Of the increase in property, plant and equipment over that decade, Treasury says about $119 billion reflected revaluations, while about $107 billion reflected additions from new investment.
Treasury — Crown asset growth and revaluations ↗
Treasury explicitly warns that higher asset valuations do not necessarily mean better services.
If the land underneath a state highway becomes more valuable, the road has not suddenly gained another lane.
If construction costs rise and a hospital becomes more expensive to replace, patients have not received better care.
A higher accounting value is not automatically a higher level of national capability.
That means we need to measure asset condition
A country can report billions of dollars of infrastructure on its balance sheet while allowing that infrastructure to deteriorate.
This is one of the strongest messages in Te Waihanga's 2026 National Infrastructure Plan.
Te Waihanga says New Zealand is poor at maintaining existing infrastructure and estimates that around 60% of future infrastructure spending may need to go toward renewals and replacements.
It also notes that previous generations have left New Zealand with more than $330 billion of infrastructure, much of which is now ageing.
Te Waihanga — Maintenance and renewals ↗
So a serious balance-sheet measure needs more than an asset valuation.
It needs to know:
what condition the asset is in,
how much useful life remains,
whether maintenance is current,
how reliable the asset is,
and whether it is still capable of delivering the service it was built for.
Depreciation matters as much as investment
Suppose New Zealand invests $5 billion in new infrastructure during a year.
If the existing asset base deteriorates by $6 billion over the same period, the country has not increased its usable capital stock simply because the Budget reported $5 billion of investment.
This is why net investment matters.
Treasury notes that net investment grows the capital stock, while depreciation reflects assets being consumed over time.
Treasury — Investment, depreciation and net worth ↗
A national investment strategy therefore needs to ask:
Are we adding useful capital faster than we are wearing it out?
Debt should be compared with the asset created
Part 5 of this series argued that government debt is not automatically good or bad.
The same principle belongs on the national scorecard.
If debt rises by $10 billion, ask:
What asset was created?
What useful life does it have?
What service or productivity benefit does it produce?
What maintenance obligation comes with it?
What future revenue or avoided cost does it support?
And what happens to Crown net worth?
Treasury makes the accounting connection clear: when borrowing finances net investment, the increase in debt can be matched by an increase in assets.
But when borrowing finances persistent operating deficits, liabilities can rise without a corresponding addition to productive capital.
Debt should never be read without asking what sits on the other side of the balance sheet.
But even net worth can overstate fiscal resilience
There is another complication.
A hospital is valuable.
A school is valuable.
A state highway is valuable.
But those assets cannot realistically be sold in the middle of a recession to pay government bills.
Treasury therefore looks at alternative balance-sheet measures such as financial net worth and net debt.
Financial net worth removes major illiquid social assets to provide a better view of the assets that can actually support financial obligations and shock response.
Treasury — Fiscal sustainability and alternative net-worth measures ↗
That means a strong national dashboard should not rely on a single number.
Service performance belongs beside asset value
Imagine two hospitals with the same accounting value.
One has modern theatres, reliable systems, well-maintained equipment and enough capacity.
The other has failing infrastructure, obsolete technology and constant maintenance problems.
The accounting number may be similar.
The national capability is not.
This is why Te Waihanga is calling for agencies to publish more information about asset condition, use, insurance, risk exposure and service performance.
That is exactly what a national balance-sheet framework needs.
Productivity tells us whether capital is actually making us more capable
A country can accumulate assets without becoming much more productive.
Treasury research published in 2025 describes New Zealand as relatively capital shallow compared with comparable advanced economies.
It argues that both greater capital intensity and innovation can support productivity growth, particularly where investment increases the technological sophistication of the capital stock.
Treasury — Innovation, capital and productivity ↗
So a national investment strategy should not only ask whether the country owns more machinery, infrastructure and technology.
It should ask whether workers can produce more value because those assets exist.
That is where productivity becomes part of the national balance-sheet story.
Resilience is also an asset, even when accounting does not show it neatly
A duplicated electricity connection may look inefficient until the primary connection fails.
A stronger bridge may not produce extra revenue every day, but it may prevent catastrophic economic loss after an earthquake.
Backup communications, flood protection, cybersecurity, emergency water capacity and strategic stockpiles all carry a resilience value.
That value is sometimes difficult to capture through ordinary accounting.
But a national investment strategy that ignores it can produce a balance sheet that looks efficient right up until a shock arrives.
Human and natural capital sit outside the Crown balance sheet too
The Crown balance sheet is not the country's entire wealth.
A skilled population is productive capital.
Healthy people are productive capital.
Institutions that can plan, consent and deliver complex projects are productive capacity.
Natural systems also support economic value and resilience.
Those things cannot simply be added to the Crown's accounting net worth as if they were ordinary financial assets.
But they still belong in the wider question of whether New Zealand is leaving the next generation stronger or weaker.
A better national balance-sheet scorecard
If I were building a public dashboard, I would not use one headline number.
I would track at least ten.
1. Net worth attributable to the Crown.
Are Crown assets growing faster or slower than liabilities?
2. Net core Crown debt and debt-service costs.
How much financial headroom remains?
3. Operating balance.
Are today's operations broadly being funded from today's revenue, or is debt repeatedly financing operating deficits?
4. Net public investment.
Are additions to the capital stock exceeding depreciation?
5. Asset condition.
What proportion of critical infrastructure is good, adequate, poor or failing?
6. Maintenance and renewal gap.
Are planned renewals keeping pace with the deterioration of existing assets?
7. Service performance.
Are hospitals, schools, roads, water systems and other assets actually delivering the service expected from them?
8. Productivity and capital intensity.
Is each worker being supported by better and more technologically capable capital?
9. Resilience.
Can critical systems survive foreseeable shocks and recover quickly?
10. Investment outcomes.
Did major projects deliver the economic, public and financial benefits promised in their business cases?
I would add one more: future obligations
New assets create future costs.
A new hospital requires maintenance, staffing, energy, equipment and eventual replacement.
A new road requires resurfacing.
A new digital system requires cybersecurity, upgrades and support.
So every large investment should carry a lifecycle obligation alongside its asset value.
A country can make its balance sheet look stronger today while creating unaffordable maintenance liabilities tomorrow.
The scorecard should be published over time, not only at Budget
The value of a national balance-sheet dashboard would come from trend.
One year is noise.
Five, ten and twenty years reveal direction.
Are asset conditions improving?
Is debt servicing becoming easier or harder?
Is productivity rising?
Are maintenance backlogs shrinking?
Are projects becoming more reliable to deliver?
Is the country more resilient to shocks?
Those are the questions that tell us whether public capital is actually compounding.
What would count as failure?
More assets but worse services.
More debt but no corresponding productive capacity.
Higher accounting values caused mainly by revaluation.
More infrastructure while maintenance backlogs continue to grow.
More investment while productivity remains flat.
More projects while delivery performance deteriorates.
That would be evidence that New Zealand is spending capital without accumulating enough national capability.
What would count as success?
A stronger Crown net-worth position over time.
Debt that remains serviceable and leaves room for shocks.
Assets that are maintained and reliable.
Infrastructure that removes bottlenecks.
Higher productive capital per worker.
Better public services from the capital already owned.
Greater resilience.
And major investments that actually deliver the outcomes used to justify them.
National wealth is not the amount of money a government has spent. It is the useful capacity that remains after the money has been spent.
My conclusion
New Zealand should absolutely watch debt.
It should watch deficits.
It should watch Crown net worth.
But if we stop there, we miss the central purpose of public investment.
The real objective is not an attractive set of accounts.
It is a country with stronger infrastructure, more productive firms, reliable public services, greater resilience and enough fiscal capacity to respond when something goes wrong.
That requires a scoreboard that can see both finance and the real economy.
Next
There is now one obvious question left before we can turn this series into a complete national framework:
How should New Zealand pay for the maintenance of everything it builds?
Part 15 will examine depreciation, asset-management plans, lifecycle funding, renewal reserves, user charges, rates, Crown appropriations and why the political system often rewards new builds more than looking after what already exists.
Primary sources
Treasury — He Puna Hao Pātiki: Investment Statement 2025 ↗
Treasury — Interim Financial Statements to 31 May 2026 ↗
Treasury — Budget Economic and Fiscal Update 2026 ↗