
KSeF 2026: How to prepare your company from an IT perspective before it's too late
KSeF 2026 is no longer just for accounting. It's an IT project that will touch every stage of issuing and receiving invoices. Instead of paper and PDF, we're introducing invoices structured in XML according to the FA(3) schema, communication via the KSeF API, new certificates, and offline modes. It sounds technical, but the gist is simple: if the systems in