eIDAS interoperability

eIDAS interoperability refers to the mutual recognition of digital identities and electronic signatures between EU Member States, as required by the eIDAS regulation (articles 6 and 25). A qualified certificate issued by a trusted service provider (TSP) listed on the trust list of one Member State is automatically recognized as valid in all other Member States — without further action. This interoperability covers the AES and QES levels. The eIDAS 2.0 regulation (EU 2024/1183) extends this mechanism to the EUDI wallet (European Digital Identity Wallet), expected in 2026.