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Poland’s KSeF E-Invoicing System: Implementation Timeline and Steps for 2026 Compliance

  • Poland is working to implement the KSeF e-invoicing system
  • The Ministry of Finance has presented a draft law to improve the implementation process
  • The draft law is expected to be adopted soon
  • The implementation will occur in two phases
  • Phase one starts on February 1, 2026, for companies with sales above PLN 200 million
  • Phase two starts on April 1, 2026, for all other businesses
  • Some requirements are postponed until July 31, 2026
  • Taxpayers with low invoice volume can use the current format until September 20, 2026
  • Offline mode will be available until the end of 2026
  • The Council of Ministers needs to approve the draft law
  • The government aims to implement mandatory B2B e-invoicing rules in 2026

Source: vatabout.com

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.

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