- Mandatory KSeF e-invoicing starts either on February 1 or April 1, 2026, depending on 2024 gross sales.
- Companies with over 200 million PLN in gross sales in 2024 must implement KSeF earlier (from February 1, 2026).
- The sales threshold is based on 2024 figures, not 2025 as previously planned.
- Smaller businesses and those issuing invoices via cash registers have until the end of 2026 to comply.
- Only certain types of sales count towards the threshold; some transactions (like imports or sales outside Poland) are excluded.
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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