- Polish lawmakers are introducing a national e-invoice system called KSeF.
- Currently, use of the platform is voluntary; it will be mandatory starting in 2026.
- KSeF is an IT system for sending, receiving, and storing structured invoices in xml format.
- The system assigns a unique identification number to each invoice and verifies compliance with the template.
- Basic functions include issuing and receiving invoices, real-time transaction control, and managing rights and authorizations.
- E-invoices can be issued using free tools from the Ministry of Finance or commercial software.
- KSeF will cover all active VAT taxpayers, VAT-exempt entrepreneurs, and taxpayers identified in Poland for the OSS procedure with a Polish TIN.
- The obligation does not apply to taxpayers without a business presence in Poland or those with a presence not connected to invoiced goods or services.
- Mandatory use of KSeF starts on 1 February 2026 for large entities and 1 April 2026 for all entities.
- Key challenges include ensuring data accuracy and adapting IT systems and business processes.
- The Ministry of Finance will not delay KSeF implementation despite the EU’s ViDA package.
Source: global.ecovis.com
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.
