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Poland Updates — February 2026

2 items — news and publications combined.

Administrative News1 article

PolandFeb 20, 2026

Poland Accelerates KSeF Authentication Deadlines Under Regulation No. 169

Polish authorities have advanced two key authentication deadlines for the National e-Invoice System (KSeF) by approximately six weeks, with trusted signature authentication now effective from February 13 and mandatory electronic identification from February 14.

Law & Regulation1 article

PolandFeb 5, 2026

Poland Launches Mandatory KSeF E-Invoicing for Large Taxpayers from February 2026

Poland's mandatory B2B e-invoicing system KSeF went live on 1 February 2026 for businesses with 2024 turnover exceeding PLN 200 million.

Administrative News1

PolandFeb 20, 2026

Poland Accelerates KSeF Authentication Deadlines Under Regulation No. 169

Law & Regulation1

PolandFeb 5, 2026

Poland Launches Mandatory KSeF E-Invoicing for Large Taxpayers from February 2026

Poland's mandatory B2B e-invoicing system KSeF went live on 1 February 2026 for businesses with 2024 turnover exceeding PLN 200 million.

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