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 30 september 2026 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end 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 31 oktober 2026 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 31 oktober 2026 Lithuania VAT (EU One-Stop-Shop scheme) Lithuania: One-Stop-Shop (OSS) VAT return for cross-border B2C sales, due end of month after each quarter 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 30 november 2026 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 2 december 2026 EU AI Act AI-förordningen: övergångsperioden för märkning av AI-genererat innehåll i befintliga system upphör; förbud mot generatorer av icke samtyckta intima deepfakes 20 december 2026 Lithuania i.SAF VAT invoice register Lithuania: i.SAF VAT invoice register submission due by the 20th Återkommande 24 december 2026 eIDAS 2 EU:s digitala identitetsplånbok: varje medlemsstat måste erbjuda en plånbok; offentliga organ måste godta den 25 december 2026 Lithuania PVM (VAT) return Lithuania: VAT (PVM) return (FR0600) and payment due by the 25th Återkommande 31 december 2026 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end 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 31 januari 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 31 januari 2027 Lithuania VAT (EU One-Stop-Shop scheme) Lithuania: One-Stop-Shop (OSS) VAT return for cross-border B2C sales, due end of month after each quarter 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 28 februari 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end 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 31 mars 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end 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 30 april 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 30 april 2027 Lithuania VAT (EU One-Stop-Shop scheme) Lithuania: One-Stop-Shop (OSS) VAT return for cross-border B2C sales, due end of month after each quarter Återkommande 4 maj 2027 Lithuania GPM (individual activity annual income tax) Lithuania: self-employed (individual activity) annual income tax return (GPM311) and payment, due 4 May 2027 Återkommande 4 maj 2027 Lithuania VSD/PSD (self-employed social insurance) Lithuania: annual VSD and PSD contributions settlement for individual activity, due 4 May 2027 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 PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end 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: 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 30 juni 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 9 juli 2027 Instant Payments Regulation Förordningen om omedelbara betalningar: att skicka omedelbara eurobetalningar och mottagarkontroll blir obligatoriskt för banker utanför euroområdet (Polen, Sverige, Tjeckien m.fl.) 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 31 juli 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande 31 juli 2027 Lithuania VAT (EU One-Stop-Shop scheme) Lithuania: One-Stop-Shop (OSS) VAT return for cross-border B2C sales, due end of month after each quarter 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 31 augusti 2027 Lithuania PSD (self-employed compulsory health insurance) Lithuania: monthly compulsory health insurance (PSD) contribution for individual activity, due by month-end Återkommande