Judgment of the General Court (Eighth Chamber, Extended Composition) of 20 December 2023.#La Banque postale v Single Resolution Board.#Economic and monetary union – Banking union – Single resolution mechanism for credit institutions and certain investment firms (SRM) – Single Resolution Fund (SRF) – Decision of the SRB on the calculation of the 2021 ex ante contributions – Obligation to state reasons – Principle of good administration – Principle of effective judicial protection – Plea of illegality – Limitation of the temporal effects of the judgment.#Case T-383/21.