2026. gada 15. septembris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2026. gada 15. septembris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2026. gada 20. septembris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2026. gada 20. septembris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2026. gada 20. septembris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2026. gada 25. septembris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2026. gada 1. oktobris Poland e-Doręczenia (Ustawa o doręczeniach elektronicznych) Poland: e-Doręczenia address becomes mandatory for CEIDG businesses registered before 2025 2026. gada 15. oktobris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2026. gada 15. oktobris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2026. gada 20. oktobris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2026. gada 20. oktobris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2026. gada 20. oktobris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2026. gada 25. oktobris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2026. gada 15. novembris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2026. gada 15. novembris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2026. gada 20. novembris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2026. gada 20. novembris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2026. gada 20. novembris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2026. gada 25. novembris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2026. gada 2. decembris Platform Work Directive Platformu darba direktīva: nodarbinātības prezumpcijai un algoritmiskās vadības noteikumiem jāstājas spēkā nacionāli 2026. gada 15. decembris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2026. gada 15. decembris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2026. gada 20. decembris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2026. gada 20. decembris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2026. gada 20. decembris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2026. gada 25. decembris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 1. janvāris Poland JPK_CIT / JPK_KR_PD (structured accounting books) Poland: JPK_CIT digital accounting-books reporting becomes mandatory for remaining CIT taxpayers 2027. gada 1. janvāris Poland minimum wage Poland: 2027 minimum wage proposed at PLN 4,950; final regulation due by 15 September 2026 2027. gada 15. janvāris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. janvāris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. janvāris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. janvāris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. janvāris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. janvāris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 31. janvāris Poland PIT employer annual information returns Poland: annual PIT-11, PIT-4R and PIT-8AR employer information returns due 31 January (to the tax office) Atkārtots 2027. gada 31. janvāris Poland ZUS IWA accident-insurance information Poland: ZUS IWA accident-insurance information due 31 January (employers averaging 10+ insured) Atkārtots 2027. gada 15. februāris Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. februāris Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. februāris Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. februāris Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. februāris Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. februāris Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 28. februāris Poland KOBiZE national emissions database report Poland: annual report to the national GHG/emissions database (KOBiZE) due by end of February Atkārtots 2027. gada 28. februāris Poland PIT employer information to employees Poland: PIT-11 statement must be provided to each employee by the end of February Atkārtots 2027. gada 15. marts Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. marts Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 15. marts Poland BDO packaging/EPR annual report Poland: annual BDO report on packaging and products due 15 March Atkārtots 2027. gada 20. marts Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. marts Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. marts Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. marts Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 31. marts Poland CIT-8 annual return Poland: annual CIT-8 corporate income tax return due by 31 March Atkārtots 2027. gada 31. marts Poland environmental-use fee (opłata za korzystanie ze środowiska) Poland: annual environmental-use fee (opłata za korzystanie ze środowiska) due by 31 March Atkārtots 2027. gada 15. aprīlis Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. aprīlis Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. aprīlis Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. aprīlis Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. aprīlis Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. aprīlis Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 15. maijs Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. maijs Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. maijs Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. maijs Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. maijs Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. maijs Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 15. jūnijs Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. jūnijs Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. jūnijs Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. jūnijs Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. jūnijs Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. jūnijs Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 15. jūlijs Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. jūlijs Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 15. jūlijs Poland annual financial statements - KRS/RDF filing Poland: e-financial statements filing to KRS via RDF due within 15 days of approval (by 15 July for calendar-year filers) Atkārtots 2027. gada 20. jūlijs Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. jūlijs Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. jūlijs Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. jūlijs Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots 2027. gada 15. augusts Poland Employee Capital Plans (PPK) Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th Atkārtots 2027. gada 15. augusts Poland ZUS social insurance contributions Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons) Atkārtots 2027. gada 20. augusts Poland CIT advance payments Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers) Atkārtots 2027. gada 20. augusts Poland PFRON monthly declaration Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees) Atkārtots 2027. gada 20. augusts Poland PIT advances on employee salaries (płatnik) Poland: employer's monthly PIT advance payment on employee salaries due by the 20th Atkārtots 2027. gada 25. augusts Poland JPK_V7 (VAT records and declaration) Poland: JPK_V7M monthly VAT return and payment due by the 25th Atkārtots