CSRD reporting requirements for UK companies

A UK company only has CSRD reporting requirements if it is caught by one of four routes: it is consolidated into an EU parent that is in scope, it is a third-country undertaking under Article 40a, it has securities admitted to an EU regulated market, or it has an EU subsidiary that is itself in scope. Where it is caught, the requirement is a sustainability statement in a dedicated section of the management report, prepared to the European Sustainability Reporting Standards, digitally tagged, and covered by a limited assurance opinion. Three of the four routes mean the filing obligation sits with another entity and the UK company supplies data rather than reporting itself.

ESRS (2026), adopted by the European Commission on 3 July 2026, applies to financial years beginning on or after 1 January 2027, so the first reports under them are published in 2028. For financial years starting in 2026 there are three options: the 2023 standards as last amended by Delegated Regulation (EU) 2025/1416; the 2026 standards in full; or the 2023 standards plus eight named reliefs taken from the 2026 set. Article 2(2) requires the undertaking to state clearly in its sustainability statement which version it has applied.

Not yet, as at 11 September 2026. The delegated act was adopted on 3 July 2026 and went through the two-month European Parliament and Council scrutiny period without objection, but it had not been published in the Official Journal when this page was last checked at EUR-Lex. The text still carries an unfilled instruction to the Publications Office in place of its entry-into-force date. Article 29b(1) sets that date at adoption plus four months plus one week, which computes to 10 November 2026. The voluntary standard, C(2026) 5011, runs on a different clock: the third day after publication.

More than EUR 450 million net turnover and an average of more than 1,000 employees during the financial year. The two limbs are cumulative — the word in Directive (EU) 2026/470 is "and", not "or", and the old two-of-three test using 250 employees, EUR 50 million turnover and EUR 25 million balance sheet is gone. The figure of 1,750 employees circulated between the December 2025 political agreement and the adopted text of February 2026 and is wrong. For a third-country group the Article 40a threshold is EUR 450 million of EU net turnover in each of the last two consecutive financial years, plus an EU subsidiary or branch above EUR 200 million.

EFRAG benchmarks the reduction at 61 per cent of the mandatory "shall" datapoints and 71 per cent including voluntary datapoints, measured against its own May 2024 implementation guidance. The European Commission states the reduction more cautiously as over 60 per cent mandatory and more than 70 per cent in total, with an expected cost saving of over 30 per cent. The 61 per cent figure belongs to EFRAG’s revised draft, and the Commission made thirteen categories of modification to that draft before adopting it, so the percentage should not be attributed to the adopted act. Absolute datapoint counts should be avoided entirely: the widely quoted 1,144 is a total count from a November 2022 EFRAG letter about a different draft, and pairing it with a mandatory-only percentage is a category error.

No. Under ESRS (2026) disclosing information assessed as not material is prohibited, where previously it was simply unnecessary. This reverses the instinct of most reporting teams, which is that more disclosure is safer disclosure, and it means a group that padded an earlier statement must now run a removal pass with its double materiality assessment as the authority for each deletion. It also raises the stakes on the assessment itself, because a weak assessment can no longer be papered over by reporting everything.

No. The requirement is limited assurance, and there is no legislated escalation. Directive (EU) 2026/470 recital (5) states that the empowerment to adopt reasonable assurance standards "should be removed", and the replacement Article 26a(3) contains no such subparagraph. What did move is the deadline for the Commission to adopt the limited assurance standards, which is now 1 July 2027, brought forward in the text from 1 October 2026. The assurance opinion covers compliance with the standards, the process the undertaking used to identify the information reported, and compliance with Article 8 of the EU Taxonomy Regulation.

There are three tiers and two of them are Member State options. The default is the statutory auditor of the financial statements, under Article 34(1) of Directive 2013/34/EU. Article 34(3) allows a Member State to permit a different statutory auditor or audit firm, and Article 34(4) allows a Member State to permit an independent assurance services provider subject to conditions. Because both wider options are national choices, a group with subsidiaries in several Member States can have different answers in each, and the question is worth asking country by country rather than once at group level.

The value chain cap was inserted into Directive 2013/34/EU by Omnibus I. It prohibits a CSRD-scope company from requiring an undertaking in its value chain with 1,000 employees or fewer to provide more sustainability information than the content of the voluntary standard adopted on 3 July 2026, and the cap itself comprises only the datapoints listed in Annex II of that act. A reporter may rely on a self-declaration that a supplier is a protected undertaking and is not required to verify it unless it is manifestly incorrect. Two limits matter: the cap applies only to information requested for CSRD reporting purposes, not to commercial due diligence or financing, and it stops a customer requiring more rather than asking for more. It also depends on national transposition, due by 19 March 2027.

Four, on the EUR-Lex national transposition measures listing re-read on 11 September 2026: Belgium with one measure, Croatia with two, Poland with one and Finland with two. The other twenty-three show no measures at all. Nobody is late, because the deadline for Articles 1 to 3 is 19 March 2027, and a notified measure is not the same as a complete transposition — Belgium’s amends a single article and Poland’s Act predates the Directive entering into force. The delegated acts containing the standards need no transposition at all, because a Regulation is directly applicable.

Yes. A CSRD sustainability statement carries EU Taxonomy disclosures under Article 8 of Regulation (EU) 2020/852, and those disclosures are expressly inside the assurance perimeter under Article 34(1) of the Accounting Directive. ESRS (2026) allows Taxonomy content to be presented in a separate appendix, which is one of the eight reliefs available for financial year 2026, but that is a presentation relief rather than a scope relief — moving the content does not move it outside the assurance opinion.

No. None of them discharges another. CSRD requires a sustainability statement to the ESRS on a double materiality basis with limited assurance. UK SRS is the UK’s ISSB-based framework, uses financial materiality only, and is not yet mandatory for any UK entity, with the FCA consulting on listed issuers in CP26/5. SECR is backward-looking annual energy and carbon reporting in the directors’ report under UK company law, and it is mandatory for qualifying companies today. One emissions inventory can feed all of them, but the materiality lens, the audience and the assurance level are different in each.

Article 40a provisions apply for financial years beginning on or after 1 January 2028, with first reports in 2029. The turnover test looks back at the last two consecutive financial years, so the years that decide a 2028 obligation are financial years 2026 and 2027, which are being measured now. The standard those reports will be written to is ESRS-40a, which does not yet exist: EFRAG approved an exposure draft on 1 July 2026, consultation ran to 31 October 2026 and technical advice is due in January 2027, after which the Commission runs its own consultation. No adoption date has been stated.