Labour pledges no fuel tax increase for a full term, putting pressure on the coalition

Labour says it will not raise fuel excise duty for a full three-year parliamentary term if it forms the next government, with leader Chris Hipkins declaring on Thursday: "We will not be increasing fuel tax in the next term." RNZ

Fuel excise duty is the per-litre tax on petrol and diesel that funds the National Land Transport Fund (NLTF), which pays for building and maintaining roads. Under current legislation, that tax is set to rise by 12 cents a litre from January, then 6 cents per litre in 2028 and 4 cents per litre in subsequent years. Labour is also calling on the coalition government to cancel the January increase. RNZ

The government faces a tight deadline. A Cabinet decision on the planned January increase is needed by 31 August to inform the Pre-election Economic and Fiscal Update (PREFU), the Treasury's pre-election snapshot of the government's books. That gives ministers a narrow window to settle the matter before fiscal forecasts are locked in. RNZ

Finance Minister Nicola Willis has already said the government will not increase fuel tax on 1 January next year, but needs to formalise that decision in the government accounts. RNZ Willis had previously ruled out cutting the fuel excise but left the door open to delaying the planned hike, a position she signalled in March. The Spinoff

The cost of deferral is significant. Willis has previously put the figure at up to $1 billion next year if the budgeted increases are pushed out. 1News Revenue from fuel excise flows into the NLTF, which funds road building, maintenance and upgrades. Labour has separately committed to using around 1 percent of NLTF revenue to pay for its promised public transport fare caps. RNZ

Fuel excise duty has fallen in real terms by 21 percent since its last increase in 2020, a detail Labour is foregrounding to frame its pledge as a holding position rather than a tax cut. RNZ

The pledge sharpens an existing political dividing line. Labour first flagged its opposition to the scheduled increases in a May release titled "Labour will scrap National's fuel excise increase," framing the move as relief for motorists while fuel prices remain high. Labour Party Thursday's announcement goes further, extending the no-increase commitment across a full three-year term. Labour Party

Transport Minister Chris Bishop has pushed back, calling Labour's ruling out of excise increases for an entire term "irresponsible" and questioning whether it was in the spirit of bipartisanship. RNZ

The history of this issue stretches back to the 2023 election campaign, when National finance spokesperson Nicola Willis said the party's first Government Policy Statement on land transport would not include fuel excise increases, meaning no fuel increases between 2024 and 2027. NZ Herald The scheduled increases now looming were legislated under that framework, with the first 12-cent hike timed for January 2027. NZ Herald

National has promised no new taxes if re-elected in November 2026, but has not ruled out increasing existing taxes such as fuel excise. RNZ Labour's broader fiscal strategy, as set out in its election policy platform, includes returning to surplus by 2029/30 and reducing net debt while growing the economy. Labour Party

The broader context here is that the PREFU deadline of 31 August puts the coalition in a bind. Willis has effectively conceded the January increase will not proceed, but formalising that in the government accounts before PREFU requires a Cabinet decision within days. The cost of deferral sits against a fiscal strategy that, on Labour's side, targets surplus by 2029/30, and on the government's side, against its own no-new-taxes positioning. For transport, the NLTF faces dual pressure: forgone excise revenue from deferred increases, and Labour's proposed diversion of around 1 percent of the fund toward public transport fare caps. Bishop's use of the word "irresponsible" suggests the government intends to frame Labour's pledge as fiscal adventurism that erodes the NLTF's revenue base, while Labour frames the coalition's scheduled increases as a tax hike on motorists at a time when real excise revenue has already declined. The political question for both sides is whether a full-term excise freeze can survive contact with the next government's books.