Judgment of the Court (First Chamber) of 9 July 2026.#***X*** v Finanzamt für Großbetriebe.#Reference for a preliminary ruling – State aid – Article 107(1) TFEU – Value added tax – Exemption in respect of services provided between undertakings primarily carrying out transactions in the banking, insurance or pension fund sector – Admissibility of the request for a preliminary ruling – Concept of ‘aid’ – Advantage – Selectivity – Request to limit the temporal effects of the judgment.#Case C-360/25.