KSeF Attachments Not for Everyone, Despite Ministry Claims

Although the Ministry of Finance claims the new KSeF attachment feature is available to all, in practice, it will mainly benefit large companies. Only structured, table-based attachments are allowed – no PDFs, images, or text documents. Smaller firms that typically attach protocols, reports, or schedules to invoices fear exclusion, as KSeF won't support such formats.

To use attachments, businesses must apply…