ESMA support ESEF implementation with updated taxonomy
The European Securities and Markets Authority (ESMA), the EU’s financial markets regulator and supervisor, has published the 2025 European Single Electronic Format (ESEF) XBRL taxonomy files, together with an updated ESEF Conformance Suite. These materials support issuers and software vendors in preparing 2026 IFRS consolidated financial statements using the most up‑to‑date ESEF format.
The 2025 taxonomy reflects the introduction of IFRS 18 Presentation and Disclosure in Financial Statements, effective from 1 January 2027, with early application permitted. The ESEF taxonomy includes two entry points, allowing issuers to report under either IAS 1 and IFRS 18. This approach facilitates prompt understanding of the new structure, encourages timely preparation, and lowers implementation risks.
ESMA does not plan to amend the ESEF RTS or taxonomy in 2026. This follows the IFRS Foundation’s decision not to issue a 2026 IFRS Accounting Taxonomy update and will provide greater regulatory stability and more time for implementation.
Next steps
ESMA encourages issuers and software providers to consult the IFRS Foundation’s guidance on the use of the 2025 IFRS Accounting Taxonomy for 2026 reporting periods when preparing for upcoming reporting requirements.
Stakeholders wishing to provide feedback or raise questions on the 2025 ESEF Taxonomy and Conformance Suite are invited to contact esef@esma.europa.eu.
Further information:
Iris Hude
Communications Officer
press@esma.europa.eu