- Service maintenance is scheduled for the environments of the National e-Invoice System
- The maintenance will occur on December 12, 2024, from 00:00 to 03:00
- Maintenance will affect the following environments
- API of the National e-Invoice System
- KSeF Taxpayer Application
- KSeF Mobile Application
- Temporary access issues may occur during this time
- Apologies are extended for any inconvenience caused
Source: podatki.gov.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.