Mandatory e-invoicing in Slovakia: from 1 January 2027
We would like to inform you of a significant legislative change coming into effect on 1 January 2027 – the introduction of mandatory electronic invoicing (e-invoicing) for all domestic transactions of business entities. This change will affect your accounting documents, as from the above date it will be no longer possible to issue or receive invoices in paper form or as PDF files. All invoices shall be issued exclusively in a structured electronic XML format in accordance with the European standard EN 16931.