- The Ministry of Finance is resuming the free “Wednesdays with KSeF” training series for entrepreneurs on February 18, 2026, to prepare them for mandatory e-invoicing in the National e-Invoicing System (KSeF).
- Trainings will be held in tax administration offices across Poland (excluding specialized offices) until April 29, 2026.
- From March 2026, a new training module, “KSeF – trainings for the industry,” will start, targeting specific economic sectors.
- The obligation to issue invoices in KSeF is being introduced in stages: from February 1, 2026, for the largest companies, and from April 1, 2026, for others; small sales (up to 10,000 PLN/month) can still use paper or electronic invoices until December 31, 2026.
- All entities must receive invoices via KSeF from February 1, 2026, even if they do not issue them; detailed training information will be available on official tax websites.
Source: gov.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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