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2018 ESEF Taxonomy

The European Securities and Market Authority (ESMA) is an independent EU Authority that contributes to safeguarding the stability of the European Union’s financial system by enhancing the protection of investors and promoting stable and orderly financial markets.

The European Single Electronic Format (ESEF) is the electronic reporting format in which issuers on EU regulated markets shall prepare their annual financial reports from 1 January 2020.

ESMA was assigned the responsibility to develop regulatory technical standards (RTS) to specify this electronic reporting format (for details, read RTS on ESEF).

The European Commission has published on 17 December 2018 a Delegated Act (subject to the right of the European Parliament and of the Council to express objections, for a period of 3 months, renewable once)which introduces the obligation for issuers to prepare annual financial reports in xHTML format; and the obligation for issuers filing IFRS consolidated financial statements to mark them up, using the XBRL markup language, in accordance with the ESEF taxonomy (for details, read the Delegated Act in the Register of Commission Documents).

ESMA has published a first draft of the ESEF taxonomy that SHOULD be used for representing in iXBRL the IFRS consolidated primary financial statements. The ESEF taxonomy is an extension of the IFRS Taxonomy.

ESEF Taxonomy files

Location and namespaces URI

The root URI applied to folder path and XML namespaces is http://www.esma.europa.eu/taxonomy followed by a taxonomy version date ({date}) component.

Draft Taxonomy files and viewer

View the taxonomy
Download the taxonomy files

The entry point is esef_all.xsd. The viewer requires a login (free access).

Relation to other taxonomies

IFRS Taxonomy

The IFRS Taxonomy, issued by the IFRS Foundation, is the global standard that has been specifically developed to mark-up IFRS financial statements with XBRL tags and. By providing the IFRS Taxonomy, the International Accounting Standards Board can ensure that the taxonomy used is an accurate representation of International Financial Reporting Standards (IFRS Standards).

Browse IFRS Taxonomy resources || Viewer (full IFRS entry point including documentation labels) (free access, requires login)

LEI taxonomy

It is required that issuers identify themselves in the XBRL reports using the Legal Entity Identifier [LEI].

Therefore, once approved, the XBRL International LEI taxonomy will be referred by the ESEF taxonomy to provide means to identify and verify the validity of the LEI of the enterprise in the Inline XBRL report.