Official confirmation
The Minister of Finance officially confirmed that mandatory KSeF is postponed from 2025 to 2026. The decision follows a technical audit of the system.
Main reasons
- Technical issues — insufficient system performance under heavy load
- New invoice format — transition from FA(1) to FA(2)
- Business community feedback — organizations signaled lack of readiness
Voluntary use of KSeF remains available and is a good way to familiarize yourself with the system.