The Slovenian government has published revised draft legislation for the introduction of mandatory electronic invoicing (e-invoicing) requirements for B2B transactions. Since 2015, e-invoicing has been mandatory for suppliers to public sector entities in Slovenia (i.e., B2G). As proposed in the draft legislation, all B2B transactions would be subject to e-invoicing requirements from 1 January 2027, with suppliers required to send (exchange) e-invoices in accordance with approved standards.