- Polish President signed the final act for mandatory e-invoicing via KSeF on 27 August 2025
- Law awaits publication in the Official Journal and will be effective the day after
- Phased rollout begins 1 February 2026 for large taxpayers with 2024 sales above PLN 200 million
- All other taxpayers must receive e-invoices from 1 February 2026
- From 1 April 2026, all remaining taxpayers must issue e-invoices except digitally excluded ones
- From 1 January 2027, smallest taxpayers with monthly sales below PLN 10,000 must comply
- Additional measures include offline24 mode for invoice uploads within one working day
- Option to send structured attachments via schema FA3
- KSeF certificates available from 1 November 2025
- KSeF 2.0 test environment launches on 30 September 2025 for taxpayer readiness
Source: snitechnology.net
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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