Types of fuel taxes
The tax burden on petrol and diesel in Europe is not a single flat levy — it is typically composed of two or three distinct charges that stack on top of each other and on top of the underlying product cost.
Excise duty
Excise duty (also called energy tax or mineral oil tax) is a fixed amount charged per litre of fuel, regardless of the market price. It is set by each country's government and is the single largest tax component on fuel. The European Union sets minimum rates that all member states must respect: at least €0.359 per litre for unleaded petrol and €0.330 per litre for diesel. Many countries set rates significantly above these minimums.
Because excise duty is a fixed amount per litre, it does not rise or fall with the oil price. When crude oil gets cheaper, the excise duty stays the same — which is why pump prices never fall as fast as crude oil prices when markets drop.
VAT on fuel
Value Added Tax (VAT) is charged as a percentage of the final retail price, which already includes the excise duty. This means VAT is applied to both the pre-tax cost of the fuel and to the excise duty itself — effectively, you pay tax on the tax. VAT rates across Europe range from 8.1% (Switzerland) to 27% (Hungary). Most countries apply the standard national VAT rate to fuel without any reduced rate.
Because VAT is proportional to the total price, it rises and falls with oil prices, amplifying both increases and decreases at the pump.
Carbon taxes and CO₂ levies
Several European countries apply an additional carbon or CO₂ tax on top of excise duty, specifically to incentivise a shift away from fossil fuels. Unlike excise duty, carbon taxes are typically calculated based on the carbon content of the fuel: petrol produces roughly 2.35 kg of CO₂ per litre when burned, and diesel produces about 2.68 kg per litre.
Countries with notable carbon pricing mechanisms include Sweden (one of the world's highest carbon taxes at around €130 per tonne of CO₂), Finland, the Netherlands, and Switzerland. The EU's Emissions Trading System (ETS) covers the energy sector at an industrial level, and a road-transport ETS (ETS2) is being phased in from 2027, which will effectively add a carbon price element to fuel costs across all EU member states.