ESRS · CSRD · verified 6 August 2026

European Sustainability Reporting Standards — the twelve, and what changed in 2026

The European Sustainability Reporting Standards are the twelve disclosure standards that companies in scope of the EU's Corporate Sustainability Reporting Directive must report against.

Two things about them changed in 2026, and most of what is written about ESRS predates both: Directive (EU) 2026/470 cut who has to report, and a revised set of standards cut what they have to say.

12
standards, unchanged in number
−61%
mandatory datapoints, revised set
FY2027
when the revised ESRS bite
Scroll to descend
01 · The standards

What the European Sustainability Reporting Standards are, and who wrote them

ESRS are the reporting standards that give the Corporate Sustainability Reporting Directive its content: the directive says who must report and when, and the standards say what a sustainability statement has to contain, disclosure by disclosure.

They were drafted by EFRAG and adopted by the European Commission as Delegated Regulation (EU) 2023/2772 on 31 July 2023.

Because they are a regulation rather than a directive they apply directly in every member state without national transposition — which is why the standards are identical across the EUThe penalties for breaching them are not. Sanctions sit in national law, and most member states have not yet legislated the post-2026 regime — see chapter 15. while what happens if you get them wrong is not.

Almost everything published about ESRS was written before February 2026.
Below is the set as it stands now — standard by standard, with what the revision changed.
Descend into the standards
02 · The instruments

Six documents decide what ESRS means, and three of them are from 2026

ESRS is not one text.

It is a directive, a delegated regulation carrying the standards, and a run of amending instruments — and knowing which is which is the difference between reading the law and reading a summary of a version of it.

The three that changed the position most recently are the "stop-the-clock" postponement of April 2025, the Omnibus amendments of February 2026, and the two delegated acts adopted on 3 July 2026One replaces the standards; the other establishes the voluntary standard that defines the value-chain cap. Both are in the same scrutiny window, so they will take effect together. that are still in scrutiny.

Everything on this page is traceable to one of them, and the full list is in the sources at the foot.

The instruments, in orderwhat each one does
  • CSRDDirective (EU) 2022/2464, 14 December 2022 — created the obligation by amending the Accounting Directive Full text ↗
  • ESRS Set 1Delegated Regulation (EU) 2023/2772, adopted 31 July 2023, published 22 December 2023 — the twelve standards Full text ↗
  • Stop the clockDirective (EU) 2025/794, 14 April 2025 — postponed the later waves Full text ↗
  • Quick fixDelegated Regulation (EU) 2025/1416, 11 July 2025 — eased first-year reporting for wave one
  • Omnibus IDirective (EU) 2026/470, 24 February 2026, in force 18 March 2026 — the scope cut. Transposition due 19 March 2027
  • The revisionC(2026) 5010 final and C(2026) 5011 final, adopted 3 July 2026 — the content cut, and the voluntary standard. Adopted, not in force

The Commission's own register of what is adopted and what is published is the fastest way to check the current position: Delegated acts under the CSRD ↗. The UK equivalent regime is UK SRS, and it is a different family of documents entirely.

03 · The set

The twelve European Sustainability Reporting Standards — two cross-cutting, ten topical

The European Sustainability Reporting Standards, as Set 1, comprise twelve standards: two cross-cutting and ten topical, split across environment, social and governance.

The 2026 revision replaced the text of both annexes in full but kept the architecture — still two cross-cutting standards and ten topical ones, in the same four reporting areas.

One naming change matters, because every list published before July 2026Including the technical documentation for the 2023 set, which remains live and correct for its own version. Two versions of the same standard now coexist, and a list is only wrong if it does not say which one it describes. has it wrong: ESRS E3 is now "Water", and marine resources moved into E5 as a resource-inflow category.

Only ESRS 2 applies unconditionally.

Every other standard applies only where the company's double materiality assessmentThe test of whether a topic matters, run in two directions: the company's impacts on people and the environment, and the effect of sustainability matters on the company. Chapter 11 sets out how the 2026 revision changed the method. says the topic is material — which is why two companies in the same sector can publish statements of very different lengths and both be compliant.

ESRS Set 1, as revised2 cross-cutting · 10 topical
CodeStandardApplies
ESRS 1General requirementsAlways — it is the framework, not a disclosure standard
ESRS 2General disclosuresAlways, for every company in scope
ESRS E1Climate changeIf material
ESRS E2PollutionIf material
ESRS E3WaterIf material — renamed; marine resources moved to E5
ESRS E4Biodiversity and ecosystemsIf material
ESRS E5Resource use and circular economyIf material
ESRS S1Own workforceIf material
ESRS S2Workers in the value chainIf material
ESRS S3Affected communitiesIf material
ESRS S4Consumers and end-usersIf material
ESRS G1Business conductIf material

The full technical text of the 2023 set, disclosure by disclosure, is public: EFRAG ESRS Set 1 technical documentation ↗. The revised text is at EFRAG's ESRS Knowledge Hub ↗, with amendment logs against the 2023 version.

04 · The revision

The revised European Sustainability Reporting Standards adopted on 3 July 2026 are not law yet

On 3 July 2026 the Commission adopted a delegated act, C(2026) 5010 final, replacing Annexes I and II of Delegated Regulation (EU) 2023/2772 in full.

It has no "(EU) 2026/…" number, because it has not been published in the Official Journal.

Adopted delegated acts pass to the European Parliament and the Council for a two-month scrutiny period, extendable by a further two monthsEither co-legislator may object within the window, and either may extend it. Silence is what lets the act proceed to publication, so "no news" here is the expected path rather than a delay., and take legal effect only on publication afterwards.

As at 6 August 2026 that window is open, and EFRAG's own site carries the same caution — the revised ESRS "will become legally effective only after its publication in the Official Journal".

The revised standards apply to financial years beginning on or after 1 January 2027So a December year-end reports under them for the first time in the annual report published in 2028. A June year-end reaches them a year later than a calendar-year peer., with FY2026 a three-way choice covered in chapter 11.

There is one planning consequence nobody states plainly: EFRAG confirmed on 28 July 2026 that no Implementation Guidance exists for the revised set, and the draft revised datapoint list and draft XBRL taxonomy were only tabled at its Sustainability Reporting Board on 29 July 2026.

Where the revision has got tostatus, 6 August 2026
  • Adopted3 July 2026 — two delegated acts: C(2026) 5010 (revised ESRS) and C(2026) 5011 (the voluntary standard) Commission announcement ↗
  • Status nowIn European Parliament and Council scrutiny. Not numbered, not in the Official Journal, not in force
  • Entry into forceArticle 3 sets it at adoption plus four months and one week, with the date inserted at publication — unusual, and deliberate
  • First mandatoryFinancial years beginning on or after 1 January 2027
  • GuidanceNone yet for the revised set. EFRAG's existing Implementation Guidance addresses the 2023 standards
  • RegisterThe Commission's own act register lists both as awaiting publication Delegated acts under the CSRD ↗

The primary document, including the explanatory memorandum the datapoint percentages come from, is C(2026) 5010 final (PDF) ↗. Our news write-up is at EU adopts revised ESRS.

05 · Corrections

Eight things about the European Sustainability Reporting Standards that were true in 2024 and are not true now

The largest problem with ESRS guidance in August 2026 is not that it is thin.

It is that a great deal of it is confidently wrong, because it was written before Directive (EU) 2026/470 and never revisited.

Each row below is a claim still in wide circulation, with the instrument that displaced itEvery correction here is traceable to a numbered article or recital, not to commentary. Where an instrument is adopted but not yet published, the page says so rather than treating adoption as force..

Two of them are load-bearing for planning: sector-specific ESRS will not exist, and reasonable assurance is not coming.

If either is in a budget or a roadmap, it is money committed against a rule that was repealed.

Superseded, with the instrumentas at 6 August 2026
Still repeatedThe position now
Around 50,000 companies in scopeAbout 6,753 remain — 1,535 in wave one, 5,218 in wave two, on the Commission's own count in SWD(2026) 500 final
A roughly 90% scope reductionThe Commission says about 85%. The 80% figure that also circulates was an estimate of a proposal that was never enacted
Large means two of three tests — 250 staff, EUR 50m turnover, EUR 25m balance sheetTwo cumulative tests: more than 1,000 employees and more than EUR 450m net turnover. The balance-sheet criterion is gone
Wave one keeps reportingWave-one companies below the new thresholds fall out of scope from financial years starting on or after 1 January 2027, and member states may exempt them for FY2025 and FY2026
Listed SMEs report from FY2026 or FY2028Removed entirely. Article 29c and the listed-SME wave are deleted
Non-EU trigger: EUR 150m EU turnover plus a branch above EUR 40mEUR 450m EU net turnover in each of two consecutive years, plus a subsidiary or branch above EUR 200m
Sector-specific ESRS are in developmentThe Commission's power to adopt them was deleted. Non-binding sector guidance may follow, at the Commission's discretion
Assurance moves to reasonable in timeThe empowerment to adopt reasonable-assurance standards was removed. Limited assurance only — see chapter 14

All eight are traceable to Directive (EU) 2026/470 ↗ and its recitals, except the company counts, which are from the Commission staff working document accompanying the 3 July delegated acts.

06 · The burden

What the revision actually removed, and what the saving is worth

The headline is a cut in datapoints, and the two numbers in circulation are both correct because they measure different things.

The Commission's explanatory memorandum states a 61% reduction in mandatory datapoints; its press release states more than 60% of mandatory and more than 70% of total datapoints, the second figure including the voluntary ones that were deleted outright.

The mechanism is structural rather than cosmeticThe reduction did not come from deleting topics. It came from removing optionality and from moving requirements closer to the disclosure they serve, which is why the twelve standards survive intact.: every voluntary "may" datapoint is gone, Application Requirements were cut and moved next to the disclosure they serve, and the Minimum Disclosure Requirements were replaced by General Disclosure Requirements sitting inside ESRS 2.

The saving the Commission claims is more than 30% of reporting cost per company, averaging 34% of baseline across 2027 to 2031 and reaching an estimated EUR 3.7 billion cumulatively, or EUR 4.7 billion once value-chain effects are counted.

Those are Commission estimates of a futureModelled against a baseline the Commission does not publish in full. They are the best available figures and they are also an interested party's figures; both things are true., not observed outcomes, and the page states them as such.

The practical caution is simple: the revised datapoint list is still in draft, so anyone sizing a data-collection programme in August 2026 is working from the 2023 list and should expect it to move.

The cut, measured two waysC(2026) 5010 final
Mandatory datapoints−61%
Total datapoints−70%
Reporting cost, 2027–31 average−34%

Percentages from the explanatory memorandum to C(2026) 5010 final and the Commission's press release of 3 July 2026. Cost figures from the accompanying staff working document, SWD(2026) 500 final (PDF) ↗. Commission estimates, not measured results.

07 · Scope

Who has to report against the European Sustainability Reporting Standards

Directive (EU) 2026/470 rewrote the first subparagraph of Article 19a(1) of the Accounting Directive, and the replacement wording is a cumulative test on two criteria.

An undertaking reports if it exceeds a net turnover of EUR 450,000,000 and an average of 1,000 employees during the financial year.

Both, not either — and the balance-sheet-total criterionUnder the old test an undertaking was "large" if it met two of three: 250 employees, EUR 50m turnover, EUR 25m balance sheet. That structure is gone from CSRD scope entirely. that used to sit in the "large undertaking" test has no role here at all.

Article 29a mirrors the same test at consolidated group level.

There are three routes into the regimeAn EU undertaking above the thresholds in its own right; a non-EU parent reached through Article 40a; and the value-chain cap, which is not a reporting obligation at all but is how most UK businesses will meet CSRD. and they are genuinely different obligations, which is why the instrument below asks about all three rather than one.

For UK-specific scope questions, the fuller treatment is on CSRD for UK companies.

Which route reaches you3 routes · 6 questions

Ported from this site's ScopeDecisionTree component. Thresholds are those in Directive (EU) 2026/470, Article 2 points (1), (4), (5) and (13). This is a reading of the published criteria, not advice on a particular group.

08 · Timing

The reporting years, after two rounds of postponement

The timetable in Article 5(2) of the CSRD has been amended twice: by the "stop-the-clock" Directive (EU) 2025/794 in April 2025, and again by Directive (EU) 2026/470.

The result is a single scope gate from FY2027 rather than a sequence of waves.

The point most guidance still misses is what happens to wave oneThe roughly 1,535 NFRD-legacy public-interest entities that began reporting for financial year 2024. They are the companies that built CSRD processes first, and a large share of them are below the new thresholds..

Those companies — the NFRD-legacy large public-interest entities above 500 employees — report for financial years starting between 1 January 2024 and 31 December 2026, and then, if they are below EUR 450m or 1,000 employees, they simply stop.

Recital 31 of the amending directive says so in terms"Undertakings falling within the scope of point (a) but not within the scope of point (b) as amended will fall outside the scope of this Directive as of financial years starting on or after 1 January 2027.".

A separate provision lets member states exempt sub-threshold undertakings for financial years starting between 1 January 2025 and 31 December 2026, so a group with subsidiaries in three member states can face three different answers for 2026.

What applies whenArt. 5(2), as twice amended
FY2024–FY2026
Wave one reports
NFRD-legacy large public-interest entities above 500 employees, under ESRS Set 1 as amended by the 2025 quick fix.
FY2025–FY2026
A national off-ramp may apply
Member states may exempt undertakings and issuers below the new thresholds. This is a discretion, not an obligation, so it differs by country.
FY2026
A three-way choice of standard
Existing ESRS, the revised ESRS in full, or existing ESRS plus eight named reliefs — with disclosure of which was used. See chapter 12.
FY2027
The single gate opens, and closes
Everyone above 1,000 employees and EUR 450m reports, under the revised ESRS. Everyone below falls out, including former wave-one companies.
2028
First reports under the revised standards
Published in 2028 for financial year 2027.
FY2028
Article 40a reporting begins
Non-EU groups above the EU turnover test, reported through an EU subsidiary or branch, first published in 2029. The standard for it does not exist yet.
19 Mar 2027
Transposition deadline
Member states must have the CSRD amendments in national law. Until then, national positions vary.

Wave three — listed SMEs, small and non-complex institutions and captive undertakings — was deleted outright, along with Article 29c. Our UK-side equivalent is the UK SRS timeline.

09 · UK groups

How a UK group is reached — and which entity actually files

Article 40a is the provision that reaches non-EU parent undertakings, and the common description of it is wrong in a way that matters.

It does not place an obligation on the UK company.

It obliges the EU subsidiary or EU branchArticles 40c and 40d put the duty on that entity's directors, or on the branch itself. A UK board that assumes its Dutch subsidiary reports only on Dutch operations has the shape of this wrong. to publish a sustainability report drawn up at the level of the ultimate non-EU parent or its group, with responsibility resting on that subsidiary's directors or on the branch.

So a UK plc whose Dutch subsidiary crosses the threshold ends up with a group-level report about the whole UK group, filed in the Netherlands.

Three tests must all be met, and the turnover test is measured on EU-generated revenue over two consecutive yearsNot global revenue, and not a single-year snapshot. A group that crosses the line in one year and falls back the next is outside the test., in euro.

For a sterling-reporting group sitting near EUR 450m, the exchange-rate assumption is the difference between in and out of scope, and there is no relief for that.

One new derogation is worth knowing: where the non-EU parent is a financial holding undertaking whose subsidiaries operate independently of one another, its EU subsidiaries and branches may decide not to publish.

Article 40a, post-Omnibusall three must hold
  • Test 1The UK group generated more than EUR 450,000,000 net turnover in the Union in each of the last two consecutive financial years (raised from EUR 150m)
  • Test 2It has an EU subsidiary with more than EUR 200,000,000 net turnover in the preceding financial year
  • Or test 3Failing a qualifying subsidiary, an EU branch with more than EUR 200,000,000 net turnover in the preceding financial year (raised from EUR 40m)
  • Who filesThe EU subsidiary or branch, under Articles 40c and 40d — not the UK parent
  • What it coversImpacts only. Risks, opportunities, resilience and dependencies are excluded by the directive itself
  • FromFinancial years starting on or after 1 January 2028; first reports published 2029 — unchanged by Omnibus
  • The standardESRS-40a. It does not exist yet — see chapter 09

Directive (EU) 2026/470, Article 2 point (13) and recital 26. UK-specific scope, including groups with a UK listing as well as EU operations, is on CSRD for UK companies and overseas companies and UK SRS.

10 · The open question

The standard UK groups will report under is still being consulted on

EFRAG published the ESRS-40a Exposure Draft on 23 July 2026, opening a 100-day public consultation that closes on 31 October 2026.

Technical advice goes to the Commission in January 2027, and a delegated act follows after that — roughly a year before the first reporting year begins.

The draft keeps the same twelve-standard architecture and strips out everything except impactsRisks, opportunities, resilience and dependencies are excluded by the directive itself, not by EFRAG's choice. Article 40a reporting is a one-directional account of what the group does to people and the environment..

The contested part is a proposed mixed approach: for every topic except climate, an in-scope group could limit its reporting to EU-related impacts — those arising from EU activities and from products and services sold into the EU — while climate stays global.

For a UK group with a small European footprint and a large one elsewhere, that election is the difference between a European report and a worldwide one.

It is worth knowing that EFRAG is consulting on it under protestA letter from the Sustainability Reporting Board's chair to DG FISMA on 6 July 2026 records the reservations and the vote. Publishing that letter alongside the draft is unusual and it is a signal about how settled the proposal is..

Its Sustainability Reporting Board approved the draft 13–0 with four abstentions while recording "clear and broadly shared reservations" about the mixed approach, which is in the consultation "because, and only because, this reflects the Commission's request".

A UK group that expects to be caught in FY2028 can still respond to the consultation.

ESRS-40a — where it standsconsultation open
  • Published23 July 2026, Exposure Draft plus Basis for Conclusions EFRAG announcement ↗
  • Closes31 October 2026 — a 100-day window Project page ↗
  • Advice dueJanuary 2027, to the European Commission
  • ContentImpacts only. No risks, opportunities, resilience or dependencies
  • The electionNon-climate topics may be limited to EU-related impacts; climate is reported globally
  • ContestedEFRAG's own board recorded reservations about the workability and assurability of the mixed approach

This is the single most consequential open item for UK groups, and it is why chapter 17 puts "read the exposure draft" above "start collecting data".

11 · Materiality

Double materiality survived the Omnibus, but the way you assess it changed

The amended Article 19a(1) keeps both limbs word for word: information necessary to understand the undertaking's impacts on sustainability matters, and information necessary to understand how sustainability matters affect its development, performance and position.

Nothing in Directive (EU) 2026/470 removes or qualifies either.

What changed sits in the revised ESRS 1, and it is a change of method rather than principleThe question a company must answer is identical. What moved is how much process the standard prescribes for answering it, and how much of the topic tree it must walk to get there..

A top-down pathway is now codified, undue-cost-or-effort and value-chain limitations are written in, and the Appendix A list of topics is no longer mandatory — it is non-binding guidance, and its sub-sub-topic tree is gone.

That last point has a practical edge for anyone who has already done this workMost wave-one reporters built their assessment against the 2023 Appendix A tree because it was mandatory. That work is not wasted; it is simply no longer the required depth..

An assessment built on the 2023 Appendix A tree is now more granular than the standard requires, which is a de-scoping decision rather than a compliance problem — but it is a decision somebody has to take deliberately.

One boundary is worth naming: double materiality does not apply under Article 40a, because that regime is impact-only by operation of the directive.

2023 method against 2026 methodESRS 1, revised
 ESRS 1 (2023)ESRS 1 (revised)
Both limbsImpact and financialImpact and financial — unchanged
Topic listAppendix A, mandatory, with sub-sub-topicsNon-binding guidance; sub-sub-topics removed
Assessment routeNot prescribedA top-down pathway is codified
LimitationsLittle explicit reliefUndue cost or effort, and value-chain limits, written in
Overarching principleFaithful representationFair presentation, aligned to the ISSB — entity-specific disclosure where the topical standards do not capture a material impact, risk or opportunity
Under Article 40an/aImpact only — no financial limb

The mechanics, and how they differ from the UK's single-materiality approach, are on double materiality and the double materiality assessment.

12 · The election

For a financial year 2026 report, three versions of ESRS are available

Article 2 of the 3 July delegated act gives companies reporting on financial year 2026 a choice of three, and requires them to disclose which one they used.

Most coverage presents this as a compliance fact.

It is a decision with trade-offsAdopting the revised standards early avoids a restatement but commits to a text that is not yet in the Official Journal and has no implementation guidance. Staying on the existing standards is safer and, for a company still in scope next year, more expensive., and the right answer depends on whether the company expects to still be in scope in FY2027.

A company that will fall out of scope has little reason to adopt the revised standards early; a company that will remain in scope has every reason to, because it avoids restating a year later.

The middle route — the 2023 standards plus eight named reliefsESRS 1 paragraphs 27, 32 to 33, 74 to 75, 90, 91, 92, 106 and 110. Specific paragraph references, applied early, and nothing beyond them. from the revised ESRS 1 — is the pragmatic one, and it is the least understood.

The eight reliefs are specific paragraph references, not a general easement, and the tabs below list them.

Which version, for FY2026Art. 2, C(2026) 5010

Ported from this site's D13SixAmendments base-plus-deltas diagram. Paragraph references are from Article 2 of the delegated act adopted 3 July 2026.

13 · The cap

Most UK companies will meet CSRD as a supplier, not as a reporter

The provision that will touch the largest number of UK businesses is not a reporting obligation at all.

Directive (EU) 2026/470 creates a value-chain cap: an undertaking in a reporting company's value chain that does not exceed an average of 1,000 employees is a protected undertaking, and it has a statutory right to decline requests for information beyond what the voluntary standard covers.

The protection is not limited to SMEsThe cap is drawn by headcount, not by the Accounting Directive's size categories. A company with 900 employees and substantial turnover is protected; one with 1,100 and modest turnover is not., and a contractual clause purporting to override it does not bind.

The reporting company also carries a positive duty: it must tell the protected undertaking which parts of its request exceed the cap, and that it may refuse.

There is one boundary that will catch people out, and it is the reason a blanket refusal is the wrong instinctRefusing on cap grounds a request that has a different legal basis puts the supplier in breach of a rule the cap never touched. The useful question is which of three categories a request falls into, not whether it can be refused..

The cap applies only to information sought for sustainability reporting under the Accounting Directive.

A request driven by deforestation rules, forced-labour rules, the customer's own risk management, or an existing contract sits outside it entirely.

The companion voluntary standard, C(2026) 5011 final, defines where that line falls; like its sibling it was adopted on 3 July 2026 and is not yet in force.

What you can be asked for3 lanes · the cap

Ported from this site's D10ObligationLedger. Basis: Directive (EU) 2026/470 recital 12 and amended Articles 19a(3), 29a(3) and 34(2a), plus the voluntary standard adopted 3 July 2026. The Commission's underlying recommendation is Recommendation (EU) 2025/1710 ↗. Guidance for smaller UK reporters is on SME sustainability reporting.

14 · Assurance

Limited assurance is now the destination, not a staging post

The original CSRD design was limited assurance first, with a power for the Commission to move to reasonable assurance later.

Directive (EU) 2026/470 removed that power, and recital 5 gives the reason plainly — to avoid an increase in the cost of assurance.

Reasonable assuranceA higher level of comfort: the assurance provider gives a positive opinion that the information is fairly stated, rather than the negative "nothing has come to our attention" of a limited engagement. It costs materially more. will not be mandated unless the EU legislates again.

Limited assurance itself remains mandatory, and the Commission is still required to adopt assurance standards by delegated act — but the deadline moved from 1 October 2026 to 1 July 2027.

In the meantime there is no binding EU standardPractitioners work to national requirements and to the CEAOB guidelines, which means the depth of a limited-assurance engagement is not yet uniform across the EU..

The reference point is the CEAOB's non-binding guidelines of 30 September 2024, and the Commission wrote to the CEAOB on 27 January 2026 refocusing its mandate onto EU-specific add-ons and carve-outs to ISSA 5000, with advice due 30 September 2026.

For a UK group the asymmetry is worth naming: an EU reporting subsidiary buys limited assurance indefinitely, while the same group's UK sustainability reporting carries no mandatory assurance at all.

Assurance, post-OmnibusAudit Directive, Art. 26a
  • LevelLimited assurance, mandatory. The reasonable-assurance empowerment is deleted
  • EU standardTo be adopted by delegated act by 1 July 2027, moved from 1 October 2026
  • Interim referenceCEAOB guidelines on limited assurance, 30 September 2024 — non-binding Guidelines (PDF) ↗
  • In progressCEAOB advice on ISSA 5000 add-ons and carve-outs, due 30 September 2026
  • Who can assureThe statutory auditor, or — where a member state allows it — an independent assurance services provider. So the answer differs by country
  • FirmsAt least one key sustainability partner must be an approved statutory auditor; a transitional easement applies to third-country auditors for financial years 2025 to 2030
  • UK contrastNo mandatory assurance over UK sustainability reporting. ISSA (UK) 5000 is available for voluntary engagements

The UK position, including what the FCA has and has not proposed, is on UK SRS assurance.

15 · Cost

What it costs, and why nobody credible publishes a number

Every incumbent guide to ESRS is silent on cost, and the silence is not an oversight.

There is no published, observed figure for what a CSRD sustainability statement costs to produce, because the regime is three reporting cycles old and the firms that know are the firms selling the work.

What does exist is the Commission's own modelling, and it is a claim about a reduction, not a levelA 34% saving against an unpublished baseline tells you the direction of travel and nothing about the absolute number. Both facts are useful; only one of them is a budget..

The useful thing to give a finance director is therefore not a total but a shape — where the money goes, and which lines are one-off against recurring.

The table beside this sets out that shape, drawn from what the regime actually requires rather than from a survey.

Two lines in it are genuinely unbounded at the moment: the double materiality assessment, because the revised standard has no implementation guidance yet, and digital tagging, because the taxonomy for the revised standards is a draft.

Anyone quoting a fixed price for either in August 2026 is pricing a specification that does not exist.

Where the money goesshape, not a total
LineNaturePosition in August 2026
Double materiality assessmentHeavy first year, lighter afterUnbounded — no implementation guidance for the revised ESRS 1 yet
Data collection and value chainRecurringReduced by the cap, which limits what may be demanded of partners at or below 1,000 employees
Drafting and internal controlRecurringReduced — mandatory datapoints down 61% in the revised set
Limited assuranceRecurringCapped in scope: the move to reasonable assurance was deleted, so this line will not step up
Digital taggingOne-off tooling, then recurringSuspended. The mark-up duty does not bite until the ESEF rules are adopted
Restatement riskAvoidableThe FY2026 version election decides whether a company builds its process once or twice

The Commission's published estimates: reporting costs down more than 30% per company, averaging 34% of baseline over 2027 to 2031, a cumulative EUR 3.7 billion, or EUR 4.7 billion including value-chain effects, with annual savings of EUR 747 to 805 million from 2029. Source: SWD(2026) 500 final ↗. These are modelled estimates by the institution that made the rule, and this page does not present them as observed outcomes.

16 · Digital

Digital tagging is suspended, and the taxonomy for the revised standards is still a draft

CSRD required sustainability statements to be marked up in a machine-readable format, and companies had begun buying tooling for it.

The amended Article 29d now says that until the marking-up rules are adopted in the ESEF delegated regulation, undertakings are not required to mark up their sustainability reporting.

The obligation is suspended rather than removedArticle 29d still contains the mark-up requirement. What it now says is that it does not bite until the ESEF delegated regulation carries the rules for it., so the tooling question is deferred, not answered.

The picture underneath is the same: EFRAG published an XBRL taxonomy for ESRS Set 1, but the taxonomy for the revised standards was only tabled in draft at its board on 29 July 2026.

The sustainability statement still has to sit inside an XHTML management report under ESEF, so the containing format is settled even while the tagging of its contents is not.

Anyone specifying a reporting system in 2026 should treat the tagging layer as a moving target and buy the ability to change it.

Where digital reporting standsArt. 29d, amended
  • Mark-upNot required until rules are adopted under Delegated Regulation (EU) 2019/815
  • Set 1 taxonomyPublished by EFRAG for the 2023 standards
  • Revised taxonomyDraft only — tabled at EFRAG's Sustainability Reporting Board, 29 July 2026 EFRAG update ↗
  • ContainerThe management report remains an XHTML document under ESEF
  • Datapoint listThe revised list is not yet published, so a data model built now is built against the 2023 set

Directive (EU) 2026/470, Article 2 point (9) and recital 24.

17 · Enforcement

What happens if you get it wrong is a national question, and mostly unanswered

There is no EU-level penalty for a defective sustainability statement.

Sanctions sit in national law under the Accounting and Transparency Directives, and they vary widelyFrom administrative fines to public statements naming the company to personal liability for directors. The same defect can carry very different consequences in two member states. — from administrative fines to public statements to director liability.

The honest position in August 2026 is that the post-Omnibus enforcement regime largely does not exist yet, because member states have until 19 March 2027 to transpose the amendments.

Any table of CSRD fines circulating today describes the pre-Omnibus national rules, some of which will change.

One number is settled, and it belongs to the due-diligence directiveThe CSDDD, Directive (EU) 2024/1760. It is a separate regime with separate thresholds, and Omnibus raised those to EUR 1.5 billion turnover and 5,000 employees. rather than this one: the Omnibus capped the maximum CSDDD penalty at 3% of net worldwide turnover, where the previous text set 5% as a floor.

The directive also creates new statutory grounds to omit information — serious commercial prejudice, trade secrets, classified information, and information prejudicial to a person's privacy or security — with an express carve-out for defence undertakings.

Notably, the fact that competitors outside the EU face no equivalent obligation does not count as commercial prejudice.

The enforcement picturenational, and pending
  • Who sets penaltiesMember states, under national implementations of the Accounting and Transparency Directives
  • StatusPost-Omnibus transposition due 19 March 2027. Most member states have not yet legislated the new regime
  • CSDDD contrastMaximum fine capped at 3% of net worldwide turnover; liability reverts to national law; transposition 26 July 2028, application 26 July 2029
  • Omission groundsCommercial prejudice, trade secrets under Directive (EU) 2016/943, classified and legally protected information, privacy and security — each subject to assurance
  • Not a groundThat non-EU competitors are not subject to the same requirements
  • ReviewThe Commission must report by 30 April 2031, and every three years after, on whether scope should extend below the thresholds

A group operating in several member states should expect several answers, and should not plan on one. Directive (EU) 2026/470, Article 3 point (1) and recitals 14 and 37.

18 · Comparison

ESRS, UK SRS and IFRS S1 and S2 — and why one report will not serve both

A UK group with an EU reporting obligation can end up preparing two sustainability reports on two different definitions of materiality, and there is no equivalence route between them.

UK SRS is the UK's adoption of the ISSB standards with six UK amendments, published by the Department for Business and Trade on 25 February 2026, and it uses single, financial materiality.

ESRS uses double materiality, and its impact limb has no IFRS equivalentIFRS S1 and S2 ask what sustainability matters do to enterprise value. Nothing in them asks what the company does to the world, which is the half of ESRS that cannot be satisfied by a UK SRS process. at all.

Reporting under UK SRS does not discharge an EU subsidiary's CSRD obligation, and reporting under ESRS does not discharge a UK listing rule.

Climate is where the overlap is real: ESRS E1 is interoperable with IFRS S2, and EFRAG and the IFRS Foundation published joint interoperability guidance in May 2024.

That guidance is mapped against the 2023 ESRSPublished May 2024, before the revision existed. The climate mapping is unlikely to have moved much; the surrounding references have., not the revised set, and nobody has yet republished it — so a group relying on it in 2026 should treat the mapping as indicative.

The practical answer most large groups reach is one data platform and two presentations, with the impact limb and the non-climate topical standards carried as ESRS-only work.

The three frameworks side by sideas at 6 August 2026
 ESRS / CSRDUK SRS
AuthorityEuropean Commission, on EFRAG adviceDBT, with the FCA setting listed-company timing
Standards12 — ESRS 1, ESRS 2, E1–E5, S1–S4, G12 — UK SRS S1 and UK SRS S2
BaselineAn independent European frameworkIFRS S1 and S2, with six UK amendments
MaterialityDouble — impact and financialSingle — financial, enterprise value
Scope testSize: more than 1,000 employees and over EUR 450m turnoverListing status, not size
PopulationAbout 6,753 companies, on the Commission's countAround 500 UK-listed entities under the FCA's proposals
StatusIn force; the revised standards adopted 3 July 2026, in scrutinyPublished 25 February 2026 for voluntary use; mandatory application proposed, not made
AssuranceLimited, mandatoryNone mandatory
Reaches a UK groupThrough an EU subsidiary or branch, under Article 40a, from FY2028Directly, through the listing rules

Fuller treatments: UK SRS vs ESRS, UK SRS vs CSRD, IFRS S1 and S2, IFRS S2, IFRS S1 and the framework landscape. The joint mapping is ESRS–ISSB interoperability guidance (PDF) ↗.

19 · Sequence

What is worth doing in August 2026, and in what order

The single most valuable action this month is not data collection.

It is re-running scope, because a large number of companies that budgeted for CSRD are no longer in it, and a smaller number that assumed they were safe are reached through Article 40a.

The order below puts the decisions that could waste money firstScope, member state, and version election. Each of them can invalidate work done before it, which is why they come before any data collection., and the work that cannot be wasted last.

Nothing here requires the revised standards to be in force, which is deliberate — every item is actionable while the scrutiny window is open.

The order of workdated 6 August 2026
  1. Re-test scope against the 2026/470 thresholds before spending anything else. More than 1,000 employees and over EUR 450m net turnover, both, at entity and consolidated level.
  2. Separately test Article 40a. EU net turnover above EUR 450m in each of two consecutive years, plus an EU subsidiary or branch above EUR 200m. Sterling groups near the line should document the exchange-rate basis.
  3. Ask each EU subsidiary's member state two questions. Has it transposed, and will it use the discretion to exempt sub-threshold companies for FY2025 and FY2026.
  4. Make the FY2026 version election deliberately, and record the reasoning. A company that will stay in scope for FY2027 usually gains by early-applying the revised standards.
  5. Stop resourcing anything that no longer exists. Sector-specific ESRS, the listed-SME standard, and any plan premised on reasonable assurance.
  6. Do not build a data model against the 2023 datapoint list. The revised list is not published; build for the disclosure requirements and keep the field mapping changeable.
  7. If Article 40a will catch you, read the exposure draft and respond by 31 October 2026. The mixed approach is the difference between a European report and a global one.
  8. Revisit a double materiality assessment built on the 2023 Appendix A tree. It is probably more granular than the revised standard requires.
  9. If you are a supplier rather than a reporter, learn the cap. Know which requests you may decline, and which sit outside it entirely.
  10. Watch two dates. Official Journal publication of the revised standards, and the FCA's UK SRS policy statement in autumn 2026.

The UK-side sequence, for groups whose first obligation is domestic rather than European, is on UK SRS compliance and ESG integration under UK SRS.

That is the regime as it stands, and where it is still moving.
Below is the sourced record — the reference detail, the questions, and every primary document.

If you last checked ESRS before March 2026, check again — the scope, the standards and the assurance ceiling all moved.

The dates and boundaries

What is settled, and what is not

More than 1,000 employees and over EUR 450m
Both tests, not either, and no balance-sheet alternative. In force since 18 March 2026.
About 6,753 companies
What is left after a reduction the Commission puts at about 85%. Not 5,000, and not 90%.
FY2027
The single scope gate. Wave-one companies below the thresholds drop out at the same moment.
3 July 2026, adopted — not in force
The revised ESRS are in scrutiny. No Official Journal number, and no implementation guidance yet.
FY2028, filed by the subsidiary
Article 40a reaches a UK group through an EU subsidiary or branch above EUR 200m. The standard is still an exposure draft.
31 October 2026
The ESRS-40a consultation closes. It decides whether a UK group reports EU impacts or global ones.
Limited assurance, permanently
The move to reasonable assurance was deleted. The EU standard is now due by 1 July 2027.
1,000 employees or fewer, in a value chain
A protected undertaking with a right to decline — but only requests made for CSRD reporting.

If a UK group is in this at all, it is through an EU subsidiary — and that is a different page.

See how CSRD reaches a UK group Compare UK SRS with ESRS, side by side
The sourced record
20 · Method

How this page is sourced

Every threshold, date and percentage on this guide to the European Sustainability Reporting Standards is cited to the Official Journal, a European Commission document, or EFRAG.

Where a figure is a Commission estimate rather than an observed outcome — the cost savings, the company counts — the page says which it is.

Where a claim is widely repeated and wrong, chapter 05 states the correct positionSilently omitting an error leaves the reader with whatever they arrived believing. Naming it costs a sentence and is the only version of this page that is useful to somebody who has already read three others. rather than quietly omitting it.

Regulatory status is stated as at 6 August 2026: the two delegated acts adopted on 3 July 2026 are in scrutiny and are not described as being in force, and the ESRS-40a standard is described as an exposure draft because that is what it is.

One figure that appears widely could not be traced to a primary Commission documentIt appears in law-firm and consultancy summaries and in press coverage, and may well be broadly right. It is not sourced here because this page cites primary documents, and an unsourced denominator makes every percentage built on it unsourced too. and is therefore not used here: the pre-Omnibus baseline of "around 50,000 companies".

The reduction is stated the way the Commission states it — as a percentage, and as the number remaining.

What are European Sustainability Reporting Standards?

The European Sustainability Reporting Standards (ESRS) are 12 disclosure standards adopted by the European Commission on 31 July 2023 under the Corporate Sustainability Reporting Directive (CSRD).

They cover environmental (E1-E5), social (S1-S4), and governance (G1) topics, plus cross-cutting requirements (ESRS 1 and 2).

A revised set was adopted on 3 July 2026 and applies to financial years beginning on or after 1 January 2027; it keeps the same twelve-standard architecture.

What is CSRD?

The Corporate Sustainability Reporting Directive (CSRD) is EU legislation requiring large companies to report sustainability information using the European Sustainability Reporting Standards.

After Directive (EU) 2026/470, scope is limited to undertakings that exceed both 1,000 employees and EUR 450 million net turnover, which the Commission estimates leaves about 6,753 companies reporting.

Do UK companies need to comply with CSRD?

Not directly post-Brexit.

A UK group is reached only through the EU: either an EU subsidiary that meets the thresholds in its own right, or Article 40a, under which an EU subsidiary or branch publishes a report drawn up at the level of the UK parent group.

UK-listed companies follow UK SRS, with the FCA consulting on mandatory application under CP26/5.

How is CSRD different from UK SRS?

CSRD uses double materiality and applies to EU companies above size thresholds.

UK SRS uses single materiality (enterprise value) and applies to UK-listed companies regardless of size.

Different authorities: the European Commission and EFRAG on one side, the UK's Department for Business and Trade and the FCA on the other.

Reporting under one does not discharge the other.

What did Omnibus I change to CSRD?

Directive (EU) 2026/470 was adopted on 24 February 2026, published in the Official Journal on 26 February 2026 and entered into force on 18 March 2026.

It replaced the scope test with a cumulative one of more than 1,000 employees and more than EUR 450 million net turnover, a reduction the Commission puts at about 85%.

It also deleted the listed-SME wave, deleted the power to adopt sector-specific standards, removed the empowerment for reasonable assurance, suspended digital mark-up, and raised the Article 40a thresholds for non-EU groups.

Member states must transpose it by 19 March 2027.

When does ESRS apply from?

Wave-one companies — NFRD-legacy large public-interest entities above 500 employees — report for financial years starting between 1 January 2024 and 31 December 2026, and fall out of scope from financial years starting on or after 1 January 2027 unless they meet the new thresholds.

From FY2027 a single gate applies to everyone.

Article 40a reporting for non-EU groups begins with financial years starting on or after 1 January 2028, with first reports published in 2029.

Are the revised ESRS in force?

Not as at 6 August 2026.

The Commission adopted the revising delegated act, C(2026) 5010 final, on 3 July 2026, but it is in the European Parliament and Council scrutiny period, has not been given an Official Journal number, and takes legal effect only on publication.

It applies to financial years beginning on or after 1 January 2027, and companies reporting on financial year 2026 may choose between the existing standards, the revised standards in full, or the existing standards plus eight named reliefs.

How many ESRS datapoints are there after the 2026 revision?

The Commission's explanatory memorandum states a 61% reduction in mandatory datapoints, and its press release states more than 60% of mandatory and more than 70% of total datapoints, the latter reflecting the deletion of all voluntary datapoints.

The revised datapoint list itself had not been published as at 6 August 2026, so an exact count is not yet available from a primary source.

Are there sector-specific ESRS?

No, and there will not be.

Directive (EU) 2026/470 deleted the Commission's power to adopt sector-specific standards.

In its place the Commission may, at its discretion, publish non-binding sector guidance illustrating how to apply ESRS in a given sector, including on the double materiality assessment.

No such guidance exists yet.

Does CSRD require reasonable assurance?

No. Limited assurance remains mandatory, and the empowerment for the Commission to adopt reasonable-assurance standards was removed by Directive (EU) 2026/470 to avoid increasing assurance costs.

The Commission must adopt limited-assurance standards by delegated act by 1 July 2027; until then the CEAOB's non-binding guidelines of 30 September 2024 are the reference point.

Can a UK supplier refuse an ESG questionnaire from an EU customer?

Partly.

An undertaking in a reporting company's value chain that does not exceed an average of 1,000 employees is a protected undertaking and may decline requests for information beyond what the voluntary reporting standard covers; a contract clause purporting to override that right does not bind.

The cap applies only to information sought for sustainability reporting under the Accounting Directive, so requests driven by other EU rules, existing contracts or the customer's own risk management are unaffected.

Is double materiality still required?

Yes.

Both limbs survive verbatim in the amended Article 19a(1).

What changed is method: the revised ESRS 1 codifies a top-down pathway, writes in undue-cost-or-effort and value-chain limitations, and makes the Appendix A list of topics non-binding guidance rather than a mandatory tree.

Reporting under Article 40a is an exception — it covers impacts only.

Authority sources

Continue reading

Related guides & references

The European Sustainability Reporting Standards are Europe’s. Whether they reach you is a question about your EU subsidiary.

If your group has EU operations, the next thing to establish is which of the three routes applies — and that determination has its own page.

CSRD for UK companiesCompare UK SRS and ESRS

Related: What is UK SRS, UK SRS thresholds, UK SRS S1, UK SRS S2, UK SRS timeline, UK SRS vs TCFD, UK SRS compliance, UK SRS vs CSRD, Reporting frameworks, ESG reporting requirements, ESG integration, Scope 3 emissions and the glossary.

Last verified 6 August 2026Reviewed by UK SRS Editorial Team
Was this useful?
Book a free consultation