CSRD

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

18. March 2026

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.

2027

First financial year covered for newly in-scope companies under the post-Omnibus CSRD scope.

1. July 2027

The European Commission must adopt limited assurance standards by this date. Limited assurance is the permanent requirement for CSRD reports following Omnibus I.

2025

Former Wave 1 companies publish first CSRD reports covering FY 2024 data.

18. September 2026

The European Commission must publish the simplified ESRS by this date, replacing the original 2023 standards with a reduced set of disclosure requirements.

19. March 2027

Member states must transpose Omnibus I into national law by this date.

2028

First CSRD reports published by newly in-scope companies, covering FY 2027 data.

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  • 2025
    2025

    Former Wave 1 companies publish first CSRD reports covering FY 2024 data.

  • 2026
    18. March 2026

    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.

  • 18. September 2026

    The European Commission must publish the simplified ESRS by this date, replacing the original 2023 standards with a reduced set of disclosure requirements.

  • 2027
    2027

    First financial year covered for newly in-scope companies under the post-Omnibus CSRD scope.

  • 19. March 2027

    Member states must transpose Omnibus I into national law by this date.

  • 1. July 2027

    The European Commission must adopt limited assurance standards by this date. Limited assurance is the permanent requirement for CSRD reports following Omnibus I.

  • 2028
    2028

    First CSRD reports published by newly in-scope companies, covering FY 2027 data.

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.

csrd double materiality

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.

OSAPIENS HUB FOR DISCLOSURES AND REPORTING

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.

Additional Resources

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Guides, Studies & Checklists
EN
July 27, 2026

CSRD after Omnibus I: A Practical Guide for Second-Wave Companies

Omnibus I has significantly changed the CSRD landscape. Many companies originally preparing for the second reporting wave now need to reassess whether they remain directly in scope, are only indirectly affected, or are currently outside the reporting obligation.This guide provides a practical overview of the revised thresholds, timelines, and reporting requirements. It also outlines the steps companies should take now to prepare their governance, double materiality assessment, sustainability data, and assurance processes.What you will learnHow to determine whether your company remains in scopeWhat Omnibus I changed regarding thresholds, timing, and the ESRSWhat double materiality and limited assurance require in practiceHow to map data sources, responsibilities, and evidenceHow to create a repeatable and scalable annual reporting process

FAQs

The CSRD compliance platform trusted by 2,500+ companies across the EU

The osapiens HUB covers double materiality, ESRS data collection, EU Taxonomy, and CSDDD from one platform, built for limited assurance from day one.

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