The Greek Public Revenue Authority (AADE) has issued Decision A. 1055 of 27 February 2026, which was published in the Official Gazette on 12 March 2026. The decision approves the form and instructions for the Notification on the person responsible for submitting the Supplementary (Top-up) Tax Information Declaration. The Notification must be submitted electronically through the myAADE portal by the Greek constituent entity of an MNE group, or if multiple Greek entities exist, by the designat…