- From 2026, most taxpayers in Poland must issue and receive structured invoices via the KSeF system.
- KSeF automates invoice processing but does not verify the substantive accuracy of invoices (e.g., dates, amounts, NIP).
- Errors in invoices can result in loss of VAT deduction rights and, in severe cases, criminal liability.
- The Ministry of Finance confirms KSeF 2.0 is ready and provides technical and user support.
- KSeF functions mainly as a hub for transmitting and archiving invoices, not for checking their correctness.
Source: ksiegowosc.infor.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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