The Directive 2014/55/HAT of 16 April 2014 requires the definition of a common European standard for electronic invoicing semantic level, as well as additional standardization products that improve interoperability in the level of syntax.
The European standard defines a Basic Structure (CORE), which includes standard information compulsory in all invoices and a specification of use of the Basic Invoice (CIUS) which is a restricted version of the standard and uses only one of the different options provided by the invoice basic.
To facilitate the adequacy of the public sector agencies in Spain and their interoperability with the European framework, the General Secretariat of Digital Administration (SGAD), in the framework of the project co-financed by the European commission EUROFACE, opened the possibility of submitting invoices EN16931 format (and UBL CII) to suppliers of goods and services of the Spanish public administrations since April 18 2019. These invoices must comply with the rules specified in CIUS of Front .
Por tanto, las administraciones autonómicas y locales adheridas a FACe (más de 8.000), independientemente de la adecuación de sus puntos propios de entrada de facturas, dan cumplimiento a la Directiva, recibiendo facturas en los formatos europeos UBL 2.1 y CII desde el 18 de abril de 2019.