- From February 2026, issuing and receiving invoices via the National e-Invoicing System (KSeF) and new JPK_VAT reporting rules become mandatory.
- Every VAT invoice must include a KSeF number in JPK_VAT files; invoices outside KSeF require special markers.
- Companies must update accounting policies and ensure readiness to avoid operational and tax risks.
- External expert support may be necessary for complex organizations to meet new requirements and avoid penalties.
- Financial penalties for certain KSeF-related violations are postponed in 2026, but other tax code penalties still apply.
Source: crido.pl
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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