Τίτλος προθεσμίας Tax declaration for Category A ships of Law 27/1975 with Greek and foreign flags and Payment of 1st and 2nd tax installments Link https://www.aade.gr/en/class-ships-tax-returns-law-271975 Λήξη Προθεσμίας ώρα Tue, 06/30/2026 - 23:59 Έναρξη Προθεσμίας ώρα Mon, 06/01/2026 - 00:00