The Italian government has approved its fourth consecutive extension of fuel excise cuts, but with a notable tightening: the discount on diesel was halved from 20 to 10 euro cents per litre, while the 5-cent reduction on petrol remains unchanged. The decree-law, adopted by the Council of Ministers on Friday evening, will keep the relief in place until 6 June. In parallel, Rome allocated around €300 million in tax credits to the road haulage sector, a move that persuaded truckers’ associations to suspend a nationwide strike originally planned for 25–29 May. The immediate political objective was to prevent supply-chain disruption, yet the retreat on diesel support signals that the fiscal room for blanket subsidies is narrowing.

Consumer advocates quickly condemned the partial rollback. The Codacons federation calculated that, once VAT effects are included, the effective discount on a litre of diesel drops from 24.4 to 12.2 cents, pushing Italy back to the top tier of European diesel prices. Prime Minister Giorgia Meloni, who personally chaired the negotiations with hauliers, struck a defiant tone by declaring energy “a priority”, even as she acknowledged her government “is living day to day”. Senior officials in Rome described the approach as a deliberate choice to keep interventions “adaptable in nature, duration and intensity” amid extreme uncertainty. To finance the roughly €500 million package, the treasury will tap extra VAT receipts generated by high pump prices, proceeds from competition authority fines, and cuts to other spending lines, including the national automotive fund and local transport investments.

Viewed from Brasília, the calculus is strikingly similar. The Brazilian government announced a petrol subsidy of 0.44 reais per litre — roughly half the federal tax take — while a diesel subvention of 0.3515 reais will take effect immediately. Planning Minister Bruno Moretti stressed that the figure was crafted cautiously to avoid an unsustainable impact on public accounts, and the measure must still be presented to President Luiz Inácio Lula da Silva for approval. Across the Pacific, Canberra is preparing to let its own temporary fuel excise cut expire at the end of June. Energy Minister Chris Bowen said the 26.3-cent reduction, introduced in April, was always “a temporary measure”, a view reinforced by the absence of any extension funding in the May federal budget. Prime Minister Anthony Albanese has not ruled out a change of course, but the political signal is one of fiscal prudence reasserting itself.

What unites these disparate capitals is a common dilemma: how to cushion households and businesses from an oil-price shock driven by the three-month-old US- and Israeli-led military campaign against Iran, without permanently eroding the tax base. The risk is compounded by the possibility that the Strait of Hormuz — the chokepoint through which a fifth of global oil transits — could reopen, rapidly deflating prices and rendering the subsidies a costly overcorrection. For now, governments are opting for serial, short-dated interventions that buy time but also entrench expectations. As Rome’s experience illustrates, the line between emergency relief and structural fiscal strain wears thin when a crisis drags on, leaving finance ministries across continents with ever fewer degrees of manoeuvre.