ACT leader David Seymour has seized on the Reserve Bank’s decision to lift the Official Cash Rate as an Election 2026 dividing line, arguing New Zealand cannot afford another surge in government spending — but the Reserve Bank’s own assessment shows the inflation story is considerably broader than one political party’s fiscal policy.
The Reserve Bank Te Pūtea Matua increased the OCR by 25 basis points to 2.75 percent on September 2, marking another turn in the economic cycle after households and businesses had endured years of elevated borrowing costs. Annual inflation is currently 4.1 percent, above the Reserve Bank’s 1–3 percent target band.
Seymour says the increase should serve as a warning to voters about the size of government, public spending and the economic consequences of Labour returning to office.
His argument is that controlling inflation requires continuing to restrain government expenditure while expanding the productive side of the economy.
Seymour puts Labour spending in the firing line
At the centre of ACT’s attack is its claim that Labour has a $10.4 billion hole between its election commitments and the revenue available to pay for them.
Seymour argues additional unfunded spending would increase demand in the economy, add to inflationary pressures and ultimately force interest rates higher than they otherwise would be.
That $10.4 billion figure is an ACT political calculation and allegation, rather than a Reserve Bank finding.
ACT is challenging Labour leader Chris Hipkins to explain how the party would fund its programme and what effect additional government spending could have on inflation, borrowing and the OCR.
It is shaping up as an important election argument because the consequences of higher interest rates are felt directly around the kitchen table.
Mortgage repayments rise.
Business finance becomes more expensive.
Credit costs increase.
And households already struggling with food, power, insurance and rates can find themselves with even less disposable income.
But why did the Reserve Bank actually raise rates?
The political argument needs to be separated from the Reserve Bank’s independent monetary policy decision.
The Reserve Bank has been dealing with inflationary pressure influenced by both domestic and international forces.
Earlier this year it warned that international developments were increasing near-term inflation while weakening economic activity. Its May Monetary Policy Statement projected inflation could peak at 4.3 percent in the September quarter before eventually returning towards the 2 percent midpoint of its target range.
That means Seymour is entitled to make the political argument that government spending matters — because fiscal policy can influence demand and inflation.
But the OCR increase cannot simply be attributed to Labour policies when Labour is not currently in government, nor can it be reduced to government spending alone.
The Reserve Bank makes its decisions independently and considers the overall inflation outlook.
ACT claims $14 billion in savings
Seymour says ACT ministers have helped drive $14 billion in savings across three Budgets, which the party argues has reduced the need for additional borrowing and taxation while easing pressure that could otherwise have flowed through to inflation and interest rates.
ACT also credits Coalition spending restraint with helping move the Government towards surplus earlier than previously expected.
Again, these are claims ACT is putting before voters as part of its economic record heading into Election 2026.
The party’s pitch is increasingly centred on the idea that National needs ACT in government to impose greater spending discipline than it would pursue on its own.
Seymour argues the battle against waste cannot be considered finished simply because inflation has fallen substantially from the levels New Zealand experienced earlier in the decade.
ACT wants a smaller state
The OCR decision also provides Seymour with another opportunity to promote ACT’s proposal to substantially reduce the machinery of government.
ACT wants fewer Ministers, fewer government departments and clearer lines of accountability, arguing New Zealand operates a government structure larger than comparable countries.
Its economic philosophy is straightforward: reduce the cost and reach of government, lower barriers for business, avoid new taxes and create conditions for private-sector investment and productivity growth.
ACT says savings should begin at the top rather than simply asking households to absorb additional taxes.
That position also creates an important question for the party.
If government is significantly reduced, voters will want to know precisely which services disappear, which agencies merge, how many jobs go and what impact those decisions have on the public.
Recent public service restructures have already intensified debate about whether spending reductions can continue without affecting frontline and public-facing services.
Labour faces pressure to show its workings
For Labour, Seymour’s attack highlights one of the biggest challenges confronting any opposition party promising new investment.
It is relatively easy to announce policies.
The harder questions are how much they cost, when they begin, whether they are funded through taxation, borrowing or reprioritisation, and what effect they could have on the wider economy.
Labour will therefore face increasing pressure throughout the campaign to demonstrate that its fiscal programme adds up.
If ACT’s $10.4 billion figure is wrong, Labour has an opportunity to demonstrate why.
If new revenue is intended to fund additional expenditure, voters need to know where that revenue comes from.
And if spending is being reprioritised, voters need to know what will receive less.
For Māori households, the OCR is not an abstract number
The political battle over the OCR has particularly serious implications for whānau already facing high housing costs and economic insecurity.
An interest rate decision in Wellington can eventually flow through to mortgage rates, business lending and household budgets around the motu.
For Māori businesses, particularly smaller pakihi with limited access to capital, higher borrowing costs can delay investment and expansion.
For homeowners refixing mortgages, even relatively small changes in rates can translate into meaningful differences in weekly repayments.
And for renters, higher financing costs faced by landlords can add another pressure within an already difficult housing market.
That means the argument over inflation is ultimately about much more than economic statistics.
It is about mahi, whare, kai and whether whānau have anything left after the bills are paid.
The economy becomes an Election 2026 battlefield
Seymour wants voters to see a simple choice.
ACT says more government spending risks higher inflation, greater borrowing, additional taxes and higher interest rates.
Its prescription is smaller government, continued savings and stronger private-sector economic growth.
Labour and other opposition parties will argue that government investment can also improve productivity, infrastructure, health, education and employment — and that cutting expenditure too aggressively can weaken the services and foundations the economy depends upon.
The Reserve Bank’s rate increase ensures those competing philosophies will now be tested against something voters understand intimately: the cost of money.
The OCR is now 2.75 percent, inflation remains above target, unemployment is elevated and households are still recovering from the cost-of-living shock of recent years.
For ACT, that is evidence New Zealand cannot relax its focus on spending.
For Labour, the challenge will be proving that its programme can deliver greater investment without reigniting inflation.
And for voters, particularly whānau Māori facing high unemployment and household costs, the question may be simpler:
Which economic plan actually leaves them with more jobs, more security and more money in their pockets?
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