Spain: with no new decree, diesel could rise 24 cents on 1 October

Support for professional diesel in Spain has an end date, and the sector’s employers are already warning what happens if nobody extends the measure in time.

The CETM’s warning

In a statement on 15 September, the CETM (Confederación Española de Transporte de Mercancías) called on the Spanish government to approve a new fuel support package before 1 October. The measures in force — Royal Decree-Law 18/2026, which we covered over the switch between tax discount and direct aid — expire on 30 September.

Without an extension, the price of diesel could rise by up to 24 cents a litre on 1 October itself, when the 25 cents a litre of support (tax and direct combined) that Spain has been using to offset price rises since July disappears for good.

What that means for one truck

The CETM puts the impact in concrete figures: a truck using around 3,000 litres a month would face 720 euros more each month — over 8,600 euros a year — without covering a single extra kilometre. It is the same work at a higher fuel cost, from one day to the next.

The federation points out that companies “need stability and predictability to hire, set prices and plan their activity”, in an energy cost increase it describes as “completely outside their control”.

For foreign hauliers

This is not only a Spanish matter. Any foreign haulier on the AEAT register of beneficiaries — and as we have explained, registration is open to vehicles registered in other Member States — takes the same cut if the aid falls away. Anyone running the Iberian route and refuelling regularly in Spain should allow, from 1 October, for the discount disappearing until a new decree arrives.

What is still unknown

At the time of publication, there is no new decree in the BOE. The CETM’s request is an employers’ position, not a government decision — the government may extend the measure, change it or let it lapse. We are following it and will update as soon as a text is published.