ISP
Published 5 November 2026, 22:39
Imposto sobre os Produtos Petrolíferos e Energéticos
The excise duty on fuel: it is already included in the price at the pump, and nobody pays it separately. The rate is set in euros per 1,000 litres and differs between petrol and diesel; for diesel it is considerably lower, which is why on the mainland diesel is usually cheaper than petrol. While fuel prices are high, a temporary reduction in the rate applies; it is recalculated every week and published as a separate portaria in the Diário da República.
Where you come across it. The price at the filling station, the weekly portarias on the rates, conversations about why fuel has gone up.
The rates reported in the news are the mainland ones. The Azores and Madeira have their own ISP and their own prices: there, the maximum selling price is set by the regional government and changes at the same time across the whole archipelago.
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Fuel in Portugal: what a litre costs and how to pay lessLatest news
A record 2,847 amendments to the 2027 budget. Chega opposes a higher pension age, IL wants lower tax on rent 7 November 2026, 01:32 ISP fuel tax discount shrinks on 9 November: prices will fall 2.2 cents less for diesel and 3.1 cents less for petrol 6 November 2026, 21:02