As the new regulations requiring the use of the National e-Invoice System (KSEF) approach, entrepreneurs are facing numerous concerns. Concerns expressed by business owners include adapting their company software to the new requirements and the security of data transferred to the government's KSeF IT system. What data is stored in the system? Read more…
Standardized invoices are those in XML format and stored electronically. A PDF file is generated when the document needs to be read, and KSeF has introduced a new requirement to mark invoice visualizations with QR codes. This code allows for easy verification that the document was generated in KSeF and that all information is correct. Read more…
As of February 1, 2026, many companies will be required to issue structured invoices through the National e-Invoice System. Implementing KSeF in a company comes with many challenges, one of which is the authorization process using KSeF certificates. Learn what a KSeF certificate is, what it's used for, and how to obtain it. Read more…