Omnibus I Directive enters into force, narrowing scope to companies with more than 1,000 employees and more than €450M net turnover and extending timelines for newly in-scope companies by two years.
Corporate Sustainability Reporting Directive (CSRD)
The Corporate Sustainability Reporting Directive requires large EU companies to report on sustainability impacts and risks under double materiality principles, following European Sustainability Reporting Standards. Omnibus I narrowed scope in March 2026 to companies with more than 1,000 employees and more than €450M net turnover. Manage double materiality assessments, data collection, and ESRS reporting on one platform with the osapiens HUB.
Next deadline
1 January 2027: start of the first reporting year under the revised CSRD.
If you're newly in scope after Omnibus I, this is when your data collection clock starts. First report due in 2028.
Regulation timeline
What the regulation requires
CSRD reports follow the European Sustainability Reporting Standards across four disclosure areas: environment, social, governance, and cross-cutting disclosures covering strategy, materiality, targets, policies, and actions. Reports sit inside the management report, must be digitally tagged for machine readability, and are subject to limited assurance from year one.
Where CSRD implementation breaks down
A double materiality assessment is an audited, evidence-backed methodology
The assessment determines which sustainability topics enter the report and which are excluded. An underdocumented or poorly scoped assessment produces either over-reporting, which wastes resources, or under-reporting, which creates assurance failure risk.
ESRS data points are scattered across ERP, energy, HR, and supplier systems
Scope 3 emissions, supplier social metrics, energy by site, and board diversity data rarely share a format or a system. Consolidating them for a single report requires a structured data collection layer.
Limited assurance applies from year one
Every disclosure requires a documented source, a control, and an audit trail. Auditors apply the same evidentiary standards to sustainability reporting that they apply to financial statements.
CSRD requirements continue to evolve
Simplified ESRS, national transposition variances, and regulatory overlaps with the CSDDD, EU Taxonomy, and CBAM mean that the compliance picture is changing between reporting cycles. Obligations confirmed in one quarter may be revised or extended before the report is filed.
Double materiality, data collection, and ESRS reporting on one platform
The osapiens HUB covers the full CSRD compliance workflow, from the double materiality assessment through ESRS data collection to assurance-ready reporting, built on the same data layer as CSDDD, EU Taxonomy, and CBAM obligations.
Build a defensible double materiality assessment on a pre-mapped ESRS foundation
The osapiens IRO Library provides a pre-built, ESRS-mapped foundation for impacts, risks, and opportunities. The Materiality Matrix and interactive dashboards support prioritization, defense, and revision as inputs change.
Connect CSRD, CSDDD, EU Taxonomy, and CBAM to one shared data layer
ESRS data points, REST API integrations with ERP and energy systems, and pre-built reporting structures mean data collected for one obligation is available across all four. A figure entered once does not require re-entry for a separate regulatory workflow.
Deliver assurance-grade documentation from the first reporting cycle
The osapiens HUB provides full data lineage, version control, and clearly separated mandatory, voluntary, and phased-in disclosures. Co-developed with legal partners, the platform is structured to meet limited assurance requirements from day one.
Additional Resources
FAQs
After Omnibus I, the directive applies to EU companies with more than 1,000 employees and more than €450M in net turnover. It also covers non-EU groups generating over €450M in EU turnover for two consecutive financial years, with an EU subsidiary or branch generating over €200M. Listed SMEs, originally in scope, were removed by Omnibus I.
Double materiality requires reporting on two dimensions: how sustainability issues affect the business (financial materiality, the outside-in view), and how the business affects people and the environment (impact materiality, the inside-out view). The double materiality assessment determines which topics enter the report and which are excluded, and is the most scrutinized part of CSRD compliance under limited assurance.
A CSRD report covers four areas: environment (climate, pollution, water, biodiversity, and circular economy), social (workforce, value chain workers, affected communities, and consumers), governance (business conduct), and cross-cutting disclosures covering strategy, materiality, targets, policies, and actions. Reports sit inside the management report, are digitally tagged for machine readability, and are subject to limited assurance.
Yes. Limited assurance is required from year one. Omnibus I removed the previously planned upgrade to reasonable assurance, making limited assurance the permanent requirement. The European Commission must adopt limited assurance standards by July 1, 2027.
Penalties are set by each member state during transposition and vary across jurisdictions. The pattern across early-transposing countries includes administrative fines, public naming, and personal liability for directors in serious cases. Non-compliant or qualified reports also carry commercial consequences, as banks, customers, and investors increasingly screen for CSRD-aligned disclosure.
The reporting obligation continues for companies that still meet the revised thresholds. The primary change is the data point burden: the simplified ESRS, due by September 18, 2026, is expected to reduce the number of required disclosures compared to the original 2023 standards.
The voluntary VSME standard provides a lighter reporting framework that is credible with customers, banks, and insurers, and constitutes a defensible response to procurement questionnaires. Companies using the VSME standard can transition to full ESRS reporting if their size or structure brings them into CSRD scope in future reporting cycles.
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