- Omnibus I changes (effective 19 Mar 2026): new non-EU thresholds — €450 M net EU turnover + €200 M EU subsidiary/branch
- Which non-EU companies fall within CSRD scope, and from which financial year (FY 2028 data; first report 2029)
- Simplified ESRS: ~50% shorter, ~61% fewer data points, €4.7 bn EU savings (≈44%)
- How to conduct a CSRD-compliant double materiality assessment (impact + financial lenses)
- Value-chain reporting relief: SME comply-or-explain and limited assurance requirements
- A practical 6-step preparation roadmap you can start today
What is CSRD?
The Corporate Sustainability Reporting Directive (CSRD) is the EU's flagship legislation for corporate sustainability transparency. It replaces the Non-Financial Reporting Directive (NFRD) and dramatically expands the scope, depth, and enforceability of sustainability disclosure across Europe and beyond.
Adopted in January 2023 and enforceable from financial year 2024 for the largest reporters, CSRD introduces four fundamental changes to the sustainability reporting landscape. The Omnibus I Directive (effective 19 March 2026) amended the original CSRD to raise thresholds for non-EU companies, simplify the ESRS data-point set, and extend the SME opt-out — while keeping the core framework and double-materiality requirement intact.
- Mandatory double materiality assessment — companies must evaluate ESG matters from both a financial impact and an environmental/social impact perspective.
- ESRS-aligned disclosures — all reporters must use the 12 European Sustainability Reporting Standards, with standardised data points and narrative requirements.
- Digital tagging — sustainability statements must be tagged in iXBRL for machine-readable submission.
- Third-party assurance — sustainability data must receive at least limited assurance from an accredited audit provider.
~50,000 companies are estimated to fall within CSRD scope across Europe — compared to ~11,700 under NFRD. The expansion is roughly 4× and includes many non-EU groups for the first time.
Who is affected — the non-EU scope
The Omnibus I Directive (approved by the European Parliament 16 December 2025, signed 24 February 2026, effective 19 March 2026) significantly revised the thresholds for non-EU companies. CSRD now extends beyond EU borders through two main channels.
Third-country undertakings (non-EU companies)
A non-EU company must report under CSRD if it meets both of the following conditions:
- Net EU turnover exceeding €450 million for the last two consecutive financial years, and
- At least one EU subsidiary or EU branch with net turnover exceeding €200 million.
Additionally, listed non-EU companies with more than 1,000 employees and global turnover above €450 million are also in scope regardless of subsidiary/branch thresholds.
Data collection commences for financial year 2028; the first sustainability report is due in 2029. This timeline applies to Gulf-based conglomerates, US corporations, and Asian manufacturers with material European revenue.
The Omnibus I amendment raised the non-EU threshold from €150 M to €450 M net EU turnover and the branch/subsidiary threshold from €40 M to €200 M — reducing the number of captured non-EU groups significantly. Verify your current EU revenue against the new figures before assuming you are or are not in scope.
EU subsidiaries and group reporting
If a non-EU parent has EU subsidiaries that independently meet large-undertaking thresholds (balance sheet > €25M, net turnover > €50M, >250 employees — any two of three), those subsidiaries must file CSRD reports individually from FY 2025 onwards. The parent entity may prepare a consolidated group-level sustainability statement to exempt qualifying subsidiaries from filing individually. Value-chain reporting requirements include an SME-friendly exemption: suppliers with fewer than 500 employees can use a comply-or-explain approach, providing relief to small subcontractors in the Gulf and other regions.
| Entity type | Threshold | First FY (data) | First report due | Assurance |
|---|---|---|---|---|
| Large EU listed companies (ex-NFRD) | Previously in scope | FY 2024 | 2025 | Limited |
| Large EU non-listed companies | 2 of 3: >€25M balance sheet / >€50M turnover / >250 staff | FY 2025 | 2026 | Limited |
| EU-listed SMEs (opt-in / proportionate) | Listed + SME size | FY 2026 | 2027 | Limited |
| Non-EU companies (third-country undertakings) | Net EU turnover >€450 M AND EU subsidiary/branch >€200 M; OR listed non-EU >1,000 employees & >€450 M global turnover | FY 2028 | 2029 | Limited → Reasonable |
ESRS data requirements
The 12 European Sustainability Reporting Standards (ESRS) define every disclosure requirement under CSRD. They are divided into cross-cutting standards and topic-specific standards across environmental, social, and governance dimensions.
A draft simplified ESRS was released on 3 December 2025. It cuts the total length by approximately 50%, reduces mandatory data points by approximately 61%, and is estimated to save EU companies €4.7 billion (~44%) in compliance costs — equivalent to roughly €1.1 million per large company and €150,000 per smaller firm in scope. Final adoption of the simplified ESRS is expected before mid-2026.
The draft simplified ESRS (released 3 Dec 2025) cuts total length by ~50%, reduces mandatory data points by ~61%, and is estimated to save EU companies €4.7 billion (~44%) in compliance costs — approximately €1.1 million per large company and €150,000 per smaller in-scope firm.
ESRS 2 (General Disclosures) is mandatory for all reporters — no materiality escape. The topic-specific standards (E1–E5, S1–S4, G1) are subject to materiality; companies only disclose on topics that pass the double materiality assessment. Even with simplification, start with ESRS 2 and E1 as universal baselines.
Double materiality assessment
Double materiality is the conceptual and procedural centrepiece of CSRD. It requires companies to apply two simultaneous lenses to every potential sustainability topic:
How do our activities affect people and the planet — both positively and negatively, directly and through our value chain?
- Actual and potential negative impacts
- Positive contributions to society and environment
- Scope includes own operations, upstream and downstream value chain
How do sustainability matters affect our financial performance, position, and cash flows — including risks and opportunities?
- Physical climate risks (acute and chronic)
- Transition risks from regulatory and market shifts
- Opportunities: efficiency gains, new markets, resilience
A topic is material under CSRD if it is material from either perspective — not both. The assessment process must be documented, subject to senior governance oversight, and auditable for assurance purposes.
ESRS 1 requires that the double materiality assessment process be disclosed in the sustainability statement itself — including who was involved, how topics were identified, how they were scored, and how senior management reviewed and approved the outcome.
Reporting timelines
CSRD is being phased in over several years, with different waves applying to different company types. Non-EU companies (third-country undertakings) fall into the final wave. Key dates to note:
Large EU listed companies (previously under NFRD) file first CSRD-compliant reports for FY2024.
Large EU non-listed companies above size thresholds must comply. EU subsidiaries of non-EU groups may be captured here.
Omnibus I Directive (approved 16 Dec 2025, signed 24 Feb 2026) enters into force. New thresholds — €450 M net EU turnover / €200 M subsidiary branch — apply from this date.
Third-country undertakings (net EU turnover > €450 M + EU presence > €200 M) and listed non-EU firms (> 1,000 employees + > €450 M global turnover) commence FY 2028 data collection.
First CSRD-compliant sustainability statement filed, with limited assurance. EU Commission may later mandate upgrade to reasonable assurance.
How to prepare: a 6-step plan
Preparation for CSRD is a 12–24 month programme for most large enterprises. With the non-EU deadline set at FY 2028 data (report due 2029), organisations have a window to prepare systematically rather than reactively. The following six steps reflect how the Gazelles advisory team structures CSRD readiness engagements.
Scope confirmation and gap analysis
Weeks 1–3Confirm whether and when your entity falls within CSRD scope. Map your current ESG data against ESRS 2 and your highest-likelihood material topics to identify the most significant data gaps.
Double materiality assessment
Weeks 4–10Conduct a structured DMA across all ESRS topics, engaging senior stakeholders in impact and financial materiality scoring. Document the process and governance trail for assurance.
ESRS data point mapping
Weeks 8–14For each material topic, map every required ESRS data point to existing data sources, identify gaps, and assign ownership. Prioritise quantitative KPIs that require system integration.
Data governance and controls
Weeks 12–20Establish data collection workflows, approval hierarchies, and audit trails. Define calculation methodologies, set emission factors, and document control frameworks for assurance-readiness.
Draft sustainability statement
Weeks 18–26Prepare the full sustainability statement against ESRS requirements, including narrative sections, quantitative tables, and entity-specific disclosures. Complete iXBRL tagging for digital submission.
Assurance and filing
Weeks 24–30Engage your assurance provider early — ideally from Step 4. Conduct a pre-assurance readiness review, address findings, and submit the assured sustainability statement with the annual report.
CSRD Implementation Playbook
48-page step-by-step deployment guide for first-wave filers. Includes ESRS data point mapping tables, double materiality templates, and assurance preparation checklist.
Download Playbook →How Ecopshub supports CSRD readiness
Ecopshub is pre-configured for all 12 ESRS standards and is updated to reflect the Omnibus I simplifications. Rather than building CSRD compliance from a blank spreadsheet, enterprise teams use a structured platform that handles data collection, workflow governance, and report generation in a single environment. The simplified ESRS cuts mandatory data points by ~61%, reducing the scope of what the platform needs to collect — but the governance and audit-trail requirements remain.
Double materiality workflow
Facilitated assessment with stakeholder scoring, topic register, and audit trail — fully documented for ESRS 1 requirements.
ESRS data point library
All 1,144 ESRS data points pre-mapped with definitions, calculation guidance, and source system tags.
Automated data collection
Configurable collection workflows push data requests to site managers, HR, procurement, and finance systems.
Assurance-ready audit trail
Every data point captures source, approver, timestamp, and calculation methodology — ready for your assurance provider.
iXBRL tagging engine
Automated XBRL/iXBRL tagging against the EFRAG taxonomy for digital submission to EU filing registries.
Multi-entity consolidation
Roll up data from subsidiaries and branches across jurisdictions into a consolidated group sustainability statement.
The Gazelles advisory team layers human expertise on top of the platform — providing ESRS interpretation, DMA facilitation, gap analysis reviews, and assurance preparation support throughout the engagement.
Frequently asked questions
Yes — under the Omnibus I amendments (effective 19 March 2026), any non-EU company with net EU turnover exceeding €450 million for two consecutive years AND at least one EU subsidiary or branch with turnover above €200 million must comply from financial year 2028 onwards (first report due 2029). Listed non-EU companies with more than 1,000 employees and global turnover above €450 million are also in scope. This captures large multinationals from the Middle East, the US, and Asia with significant European operations.
CSRD is the EU law (the directive) that mandates sustainability reporting. ESRS (European Sustainability Reporting Standards) are the technical standards that specify exactly what must be disclosed. CSRD requires it; ESRS defines how. There are currently 12 ESRS standards covering general requirements, governance, environmental topics, and social topics.
Double materiality requires companies to assess sustainability matters from two perspectives: (1) financial materiality — how ESG issues affect the company's financial performance; and (2) impact materiality — how the company's activities affect people and the environment. Both lenses must be applied, and the process must be documented and defensible for assurance.
A well-facilitated double materiality assessment for a large enterprise typically takes 6–10 weeks end-to-end, including stakeholder engagement, topic mapping, scoring, and senior review. Ecopshub provides a structured workflow and facilitation templates that reduce this to 4–6 weeks for experienced teams.
CSRD initially mandates limited assurance on sustainability statements, with a stated ambition to move to reasonable assurance in later phases. Limited assurance requires that the assurance provider has found no evidence that the sustainability statement is materially misstated. This is a higher bar than simple self-declaration and requires robust data governance and audit trails.
Not directly. While GRI and ESRS share conceptual overlap, ESRS has specific data points, tagging requirements (iXBRL), and a double materiality assessment mandate that GRI does not. However, a mature GRI reporting programme provides a strong foundation — Ecopshub maps GRI data points to ESRS requirements to identify gaps and reduce duplication of effort.