Skip to main content
Guidance

Excise duty hydrocarbon oils rates

Updated 15 June 2026

Light oils

Fuel Duty (pounds per litre) From 15 June 2026
Unleaded petrol 0.5295
Light oil (other than unleaded petrol or aviation gasoline) 0.6267
Aviation gasoline (Avgas) 0.3629
Light oil delivered to an approved person for use as furnace fuel 0.0978

Heavy oils

Fuel Duty (pounds per litre) From 15 June 2026
Heavy oil (diesel) 0.5295
Marked gas oil 0.0648
Fuel oil 0.0978
Heavy oil other than fuel oil, gas oil or kerosene used as fuel 0.0978
Kerosene to be used as fuel for excepted machines other than for heating 0.0648

Biofuels

Fuel Duty (pounds per litre) From 15 June 2026
Bio-ethanol 0.5295
Biodiesel 0.5295
Biodiesel for use in excepted machines 0.0648
Biodiesel blended with gas oil for use in excepted machines 0.0648

Road fuel gases

Fuel Duty (pounds per kilogram) From 15 June 2026
Natural road fuel gas including biogas 0.2257
Other road fuel gases including Liquefied Petroleum Gas (LPG) 0.2888

Other fuel

Fuel Duty From 15 June 2026
Aqua methanol 0.0722

Registered Dealers in Controlled Oils (RDCO)

Duty table for RDCO supplying marked gas oil for use in private pleasure craft

Effective date Full duty rate (pounds per litre) Rebated duty rate (pounds per litre) Additional duty chargeable (pounds per litre)
From 15 June 2026 0.5295 0.0648 0.4647

Carbon Price Support (CPS) rates of Fuel Duty

Fuel Rate from 1 April 2022 (per litre)
Qualifying oil which is light oil (light oil for use as furnace fuel) £0.05711
Qualifying oil which is heavy oil other than gas oil or kerosene (on which no rebate is allowed under section 11(1) or 13ZA of the Hydrocarbon Oil Duties Act 1979, or in respect of which a payment is made under section 12(2) of the Hydrocarbon Oil Duties Act 1979) £0.05711
Qualifying oil which is gas oil or kerosene (on which no rebate is allowed under section 11(1)(b) or 13AA of the Hydrocarbon Oil Duties Act 1979) £0.04916
Qualifying bioblend £0.04916

Northern Ireland

The CPS rates do not apply in respect of oils used in electricity generation in Northern Ireland, regardless of whether that electricity is sent to the grid and regardless of whether the electricity is consumed in Northern Ireland.

For more information read Motor and heating fuels used to generate electricity — relief from Excise Duty (Excise Notice 175).