Belgium has implemented a temporary windfall tax on the excess income of electricity producers, aligning with Regulation (EU) 2022/1854 of 6 October 2022.

The windfall tax applies to income exceeding EUR 130 per MWh at the rate of 100%, and for electricity generated from solid and gaseous biomass fuels and urban waste incineration, the threshold is set at EUR 180 per MWh. The windfall tax is applicable to all electricity producers in Belgium, except those with an installed capacity of up to 1 MW. It is effective from 1 August 2022 to 30 June 2023.

Electricity producers required to submit a declaration to the Belgian Commission for Electricity and Gas Regulation by 30 April 2023, covering the period from 1 August to 31 December 2022. Additionally, a second declaration is required by 7 September 2023, covering the period from 1 January to 30 June 2023.