15 september 2026 Lithuania corporate income tax (Pelno mokesčio įstatymas) Lithuania: advance corporate income tax payment (FR0430), due quarterly by the 15th Återkommande 20 september 2026 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 september 2026 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 oktober 2026 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 oktober 2026 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 november 2026 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 november 2026 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 15 december 2026 Lithuania corporate income tax (Pelno mokesčio įstatymas) Lithuania: advance corporate income tax payment (FR0430), due quarterly by the 15th Återkommande 20 december 2026 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 december 2026 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 12 januari 2027 Data Act Dataakten: molnleverantörer måste sluta ta betalt för byte och dataexport (egress) 20 januari 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 januari 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 februari 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 februari 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 15 mars 2027 Lithuania corporate income tax (Pelno mokesčio įstatymas) Lithuania: advance corporate income tax payment (FR0430), due quarterly by the 15th Återkommande 20 mars 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 mars 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 april 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 april 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 maj 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 maj 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 31 maj 2027 Lithuania Company Law (Akcinių bendrovių įstatymas) Lithuania: AGM approval and Legal Entities Register filing of annual financial statements, yearly 5-month deadline Återkommande 15 juni 2027 Lithuania corporate income tax (Pelno mokesčio įstatymas) Lithuania: advance corporate income tax payment (FR0430), due quarterly by the 15th Återkommande 15 juni 2027 Lithuania corporate income tax (Pelno mokesčio įstatymas) Lithuania: annual corporate income tax return (PLN204) due 15 June Återkommande 20 juni 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 juni 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 juli 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 juli 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 20 augusti 2027 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 25 augusti 2027 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande