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UK Structured reporting: Resources

Resources for companies

Issuers with transferable securities admitted to trading on UK regulated markets are required to start producing their 2021 annual financial reports in a structured electronic format. The FCA introduced this requirement (DTR 4.1.14) as part of the UK implementation of a cross-EU initiative known as 'ESEF' (European Single Electronic Format). Below are a few resources that may help companies understand:

What are the requirements in the UK

  • The FCA's page on structured reporting sets out the UK requirements and timetable. The requirements come into force for financial years starting on or after 1 January 2021. The FCA is currently consulting on permitted taxonomies.
  • The UK government's position is that directors' sign-off of the accounts does not extend to the tagging and that assurance is voluntary.
  • The FRC's taxonomy page provides information about UK-specific taxonomies including the UK version of the ESEF taxonomy (UKSEF).
  • ESMA's ESEF page contains video tutorials and other resources including ESMA's ESEF reporting manual.
  • Accountancy Europe maintains a page with collected guidance on ESEF reporting and assurance.

How to produce the file

  • The IFRS Taxonomy Preparer's Guide provides guidance on topics such as how to find the correct tag, when to create extensions and when to report positive or negative values.
  • The Lab shared their experience tagging the FRC's annual report in a blog.
  • XBRL International published a series of articles on common errors to avoid.
  • Structured reports as filed to the National Storage Mechanism can be found here.
  • Filings.xbrl.org provides examples of filings with a viewer that displays the tags.

The Lab is currently reviewing a set of early UK and EU ESEF filings, with the aim of publishing a best practice report in autumn. We are keen to speak to stakeholders to learn from their experience. If you are interested, please get in touch at [email protected].

How to find the right tool or service

XBRL International provides resources about:

  • different approaches companies can take to producing an ESEF report; and
  • the growing market for ESEF-related software and services. Also see XBRL International's page on XBRL Certified Software and XBRL Europe's list of ESEF tools.

How to submit the file

The FCA provides guidance on:

  • the different steps in the filing process;
  • FCA-specific technical requirements, such as file structure and naming conventions; and
  • how to upload filings into the National Storage Mechanism.

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Name UK Structured reporting: Resources
Publication date 27 September 2023
Format PDF, 1.2 MB
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