- Mandatory implementation of KSeF (National e-Invoice System) for all taxpayers
- Key dates for implementation: February 1, April 1, July 31, and September 30, 2026
- Introduction of mandatory KSeF was postponed, with new implementation dates set
- Initial plans for KSeF implementation in 2024 were delayed due to critical errors in the system
- New VAT regulations will be implemented in stages, starting from February 1, 2026 for largest taxpayers
- Transition period will allow digitally excluded taxpayers to continue using traditional invoice forms until September 30, 2026
- Deadline for certain KSeF requirements and penalties will be extended until July 31, 2026
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.
