Labour's $89.6m Error and the Investment Boost Dispute Explained
Labour has admitted its election Fiscal Plan is $89.6 million short after getting housing costs the wrong way round.
The Taxpayers' Union raised the error. It said Labour had listed reversing changes to the Income Related Rent Subsidy and Accommodation Supplement as a $44.8 million saving, when it should have been listed as a cost, according to RNZ.
Labour confirmed the mistake. A cost was recorded as a saving and a saving was recorded as a cost. It is like counting a power bill as pay — the books look better twice over. That double error left the costings $89.6 million short, rounded to $90 million in public debate. Labour said it will correct its Fiscal Plan.
Labour has said it will scrap National's Investment Boost if elected, under a new plan focused on small businesses, according to the NZ Herald. The scheme, which lets businesses write off new investment faster, was the centrepiece of Budget 2025. Labour says cancelling it will free up $7.7 billion to help pay for its election promises.
National finance spokesperson Nicola Willis disputes that figure. She said official Budget costings put Investment Boost at $5.5 billion over the forecast period, the four-year window the Budget covers. On that basis, she said Labour's figure leaves a $2.2 billion gap.
Labour finance spokesperson Barbara Edmonds said Willis is wrong. She said the $5.5 billion cost of keeping the scheme is a net figure, after lower depreciation claims are taken into account, while repeal revenue is higher because those new claims would stop. The two numbers measure different fiscal effects, she said.
Willis is not backing down. She dismissed Edmonds' explanation as "gobbledegook" and said she was "200 percent" confident she was right.
Treasury will not adjudicate. It said it does not cost or comment on political parties' policy proposals under the Public Service Commission's General Election Guidance 2026.
The broader context here is how fiscal credibility is read in the Press Gallery and by financial markets. An $89.6 million classification error is straightforward to fix and does not alter the operating balance track by itself. A $2.2 billion disagreement over depreciation baselines is different in kind.
Looking at what this means for the campaign, the question is auditability. With Treasury bound by election guidance and unable to cost party policies, journalists and economists are left to compare Budget baselines, forecast-period definitions and net-versus-gross treatment without a neutral arbiter. That favours the side that can explain its accounting most clearly and produce reconciliations others can test.
