- New law introduces key changes in the National e-Invoice System (KSeF) and delays some obligations for entrepreneurs
- Gradual implementation of KSeF obligation for all taxpayers, with two main stages starting in February and April 2026
- Extension of deadlines for certain obligations, such as not requiring KSeF number in payments until July 31, 2026
- Possibility to issue consumer invoices in KSeF, previously excluded
- Introduction of new invoice structure FA(3) with optional attachment node and new mandatory fields JST and GV
Source: crido.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.