Spain phases down its fuel duty cut and lets the temporary 10% energy VAT rate lapse
This page records one dated change. For the rules in Spain as they stand today, see the Spain guide →
- Jurisdiction
- 🇪🇸 Spain
- Tax
- VAT
- Change type
- Rate change
- Status
- Enacted
- Impact
- Action required
- Announced
- 30 June 2026
- Effective
- 1 July 2026
- Authority
- Boletín Oficial del Estado (BOE)
- Systems
- POS, Tax engine, Invoicing, ERP
- Verified
- Fetched from official source · high confidence
Suppliers and buyers of petrol and diesel in Spain, and suppliers of electricity, natural gas, biomass briquettes and pellets and firewood that were inside the temporary 10% VAT rate.
Update Spanish motor-fuel VAT to 21% and apply the new phased Hydrocarbon Tax discounts (EUR 0.15/L Jul, EUR 0.10/L Aug, EUR 0.05/L Sep 2026, subject to CPI-trigger escalation) in POS, invoicing and tax-engine systems by 1 July 2026.
POSTax engineInvoicingERP
Real Decreto-ley 18/2026 (Boletín Oficial del Estado, published 30 June 2026) introduced a phased reduction of the Impuesto sobre Hidrocarburos (Hydrocarbon Tax) on gasoline and diesel — EUR 0.15/litre in July 2026, EUR 0.10/litre in August 2026 and EUR 0.05/litre in September 2026 (with CPI-linked escalation clauses) — to cushion the reversion of the temporary reduced 10% VAT rate on motor fuels (set by Real Decreto-ley 7/2026) back to the standard 21% rate from 1 July 2026, when RDL 7/2026's temporary fuel-VAT cut expired.
What changed in detail
Real Decreto-ley 18/2026, de 29 de junio, published in the BOE on 30 June 2026 under the Plan Integral de Respuesta a la Crisis en Oriente Medio, unwinds the emergency energy tax relief introduced by Real Decreto-ley 7/2026 of 20 March.
On the Impuesto sobre Hidrocarburos, articles 5 to 7 set month-by-month rates for July, August and September 2026 that deliver a reduction of 15 cents per litre in July, 10 cents in August and 5 cents in September on diesel and unleaded petrol. Escalation clauses reverse the taper if inflation runs hot: if the June 2026 CPI for petrol or diesel exceeds the same month a year earlier by more than 15%, the reduction becomes 20 cents in August and 15 cents in September; a July trigger produces 20 cents in September.
On VAT, RDL 7/2026 had set an extraordinary and temporary reduction from 21% to 10% until 30 June 2026 for electricity supplied under contracts with a fixed power term not exceeding 10 kW and to bono social recipients recognised as severely vulnerable, and for natural gas, biomass briquettes and pellets and firewood. RDL 18/2026 does not extend that reduction outright. Instead, articles 10 and 11 reinstate the 10% rate for August 2026 and for September 2026 only if the relevant CPI subclass — 04.5.10 Electricity or 04.5.2.1 Natural gas — exceeded the prior year by more than 15% in June or July respectively.
What it means
The design here is a taper with a circuit breaker, and it means the applicable rate for August and September was not knowable when the decree was published. Both the fuel duty steps and the VAT rate depend on INE’s CPI release for the preceding month, so a Spanish billing system needs a monthly decision point rather than a schedule loaded once.
The VAT side is the one most likely to be mis-set, because the default is reversion. Absent a CPI trigger the affected electricity and gas supplies return to 21% from 1 July, and a system still carrying 10% from the March decree will under-charge silently. Note also that the VAT measures attach to electricity, natural gas and biomass — not to petrol and diesel, where the relief runs entirely through the Hydrocarbon Tax.
Proof
El capítulo II recoge medidas tributarias. A fin de paliar los efectos derivados del incremento de los productos energéticos, para los productos cuyo consumo se encuentra más extendido, esto es, el gasóleo y las gasolinas sin plomo, en el ámbito del Impuesto sobre Hidrocarburos se realiza una bajada de tipos de gravamen de 15 céntimos de euro por litro en el mes de julio, de 10 céntimos de euro por litro en el mes de agosto y de 5 céntimos de euro por litro en el mes de septiembre.Chapter II sets out the tax measures. To mitigate the effects of the rise in energy products, for the most widely consumed products — diesel and unleaded petrol — the Hydrocarbon Tax rates are reduced by 15 cents per litre in July, 10 cents per litre in August and 5 cents per litre in September.
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