Spain: September's decree brings two different fuel aids — don't mix up the figures

We reported on 30 September that the extraordinary aid for professional diesel had been extended until December. What wasn’t clear at the time — and what Spain’s sector press has presented with inconsistent figures — is that the same decree actually creates two separate measures, moving in opposite directions.

The two measures, as set out in the BOE

The Real Decreto-ley 25/2026, de 29 de septiembre (Spain’s royal decree-law of 29 September 2026; BOE no. 241, of 30/09/2026, BOE-A-2026-20265) contains:

1. A general cut to the Hydrocarbons Tax, applied automatically to the price of all fuels (diesel and petrol), for any driver — private or professional: 20 cents/litre in October, 13 in November and 6 in December (the last two months subject to how the CPI moves). This is a declining cut.
2. The extraordinary aid for professional diesel, reserved for those entitled to a partial refund of this tax (goods and passenger transport): 5 cents/litre in October, 12 in November and 19 in December — the same measure already reported on 30 September, moving upward, the opposite of the first.

CETM and Fenadismer have circulated tables that add the two components together in different ways — one shows a fixed total of €0.20/litre each month, another quotes declining figures of 20, 13 and 6 cents without separating the two measures. The figures that count are the BOE’s, above: two separate measures, with opposite logics.

What this means for professional drivers

A haulier filling up in Spain benefits from both cuts at once: the general one, which falls month by month, and the professional-diesel one, which rises month by month — the combined effect tends to settle at around 25 cents/litre in October and November, with some variation in December depending on the CPI.

Fenadismer challenges how the general cut is being managed — applied directly at filling stations rather than as a direct bank transfer to haulage firms — and warns that many companies still hadn’t received, by the end of September, the amounts owed from the first aid package, a liquidity problem that drags on. Anyone who already knows the value of the professional-diesel aid (see the 30 September news story) now needs to add the general tax cut on top, without mixing up the two tables circulating in the sector press.