- From February 2026, JPK_VAT records must include the KSeF invoice number for invoices issued in the KSeF system, regardless of issuance or transmission mode.
- The new regulation applies to the JPK_VAT declaration for February 2026 (or Q1 2026 for quarterly taxpayers).
- The obligation to issue invoices in KSeF starts February 2026 for large taxpayers (2024 sales over 200 million PLN), April 2026 for others, and January 2027 for those with monthly sales below 10,000 PLN until they exceed this limit.
- Invoices issued outside KSeF or other documents must be marked with specific codes in the records.
- Manual entry of the KSeF number will not be required.
Source: podatki.gazetaprawna.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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