Delivery of Purchase Invoices After the Introduction of Mandatory KSeF
The introduction of the mandatory National e-Invoicing System (KSeF) will significantly change not only the way invoices are issued, but also how they are delivered and received. As of 1 February 2026, KSeF will become the primary channel for invoice delivery between VAT taxpayers in Poland. Obligation to Receive Invoices via KSeF From 1 February…










