- From February 1, 2026, VAT taxpayers with sales over 200 million PLN in 2024 must issue invoices via KSeF; from April 1, 2026, this applies to all others, but all must receive invoices through KSeF from February.
- The law’s definitions of electronic and structured invoices are unclear and internally inconsistent, raising concerns about possible double invoicing for the same sale.
- There is confusion over whether sending an invoice to KSeF after sending it to a client constitutes issuing two invoices and whether this creates double tax obligations.
- The required content of electronic invoices is also unclear, with some taxpayers planning to include additional business or advertising information, as there are currently no penalties for this in 2026.
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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