CoreFiling

What Is the ESEF Mandate?

The ESEF mandate is the mandatory electronic reporting format for issuers on regulated markets and sets out how an annual financial report must be prepared and presented for filing. The regulation has been in place since 2021. Companies listed on an EU-regulated market must prepare annual financial reports in a structured format that meets the relevant electronic reporting format and reporting requirements.

What Is UKSEF? The UK Variant of ESEF?

UKSEF is the UK Single Electronic Format, the UK’s version of ESEF. The Financial Reporting Council (FRC) maintains UKSEF and extends the ESEF taxonomy with UK-specific tags.

What Does ESEF Compliance Require?

A compliant ESEF filing is an XHTML report with iXBRL tags on the consolidated financial statements and block tags on the notes. Software handles the conversion, the tagging, and the validation against ESMA’s rules and applicable ESEF RTS before companies submit the report to the regulator or official repository. ESMA also publishes an ESEF Reporting Manual which offers additional guidance.

How to Find and Use ESEF Data?

ESEF tags have a use after the filing is done. The tags make every figure in the report findable and machine-readable, so the filed document becomes a source of structured data for analysts, investors, and software. This section covers what that data is good for, where filings are published, how to search and extract them, and where the EU is taking public access next.

How CoreFiling Supports ESEF and UKSEF Compliance?

CoreFiling covers the full reporting chain, from the company that files a report to the auditor who assures it, to the regulator who collects it and to the user of the data who consumes it. The same software powers each role, which means a filer runs the same checks the regulator will run on the submission.