The European Union's Corporate Sustainability Reporting Directive came into force for its first wave of companies on 15 April 2024, marking a substantial expansion of mandatory non-financial disclosure requirements across the bloc's financial sector and wider corporate landscape. The transition placed large listed banks, insurance firms, and companies with more than 500 employees that were previously subject to the Non-Financial Reporting Directive under a significantly more demanding and granular reporting regime designed to meet the expectations of investors, regulators, and civil society stakeholders.
Under the CSRD, Wave 1 companies are required to report against the European Sustainability Reporting Standards, developed by the European Financial Reporting Advisory Group under mandate from the European Commission, for the financial year 2024. Those reports will be due in 2025, giving institutions a single reporting cycle to embed the new standards into their data collection, assurance, and disclosure processes before the first fully ESRS-compliant sustainability statements become publicly available.
ESRS STANDARDS SET A NEW DISCLOSURE BASELINE
The European Sustainability Reporting Standards represent a substantial step up from the qualitative, principles-based reporting that had characterised disclosures under the NFRD. The new framework requires companies to report across a defined range of environmental, social, and governance dimensions using prescribed data points, narrative disclosures, and forward-looking assessments that are intended to be decision-useful for investors and other stakeholders seeking to understand a company's sustainability profile in a consistent and comparable format.
For banks and insurance firms, the standards introduce specific requirements around the sustainability characteristics of lending books, insurance underwriting portfolios, and investment activities, connecting sustainability reporting to core business activities rather than treating it as a separate communications or public relations exercise. Institutions must apply a double materiality assessment, considering both how sustainability risks affect the company and how the company's own activities affect the environment and society at large.
The European Commission and EFRAG have published supporting guidance and sector-specific implementation materials to assist companies navigating the transition. Preparedness across Wave 1 institutions has varied, with the largest and most sophisticated firms having invested heavily in data infrastructure and governance while others have continued to work to close significant gaps in their reporting capabilities as the first mandatory cycle approaches.
WAVE 1 COVERS FORMER NFRD REPORTERS IN BANKING
The first wave of CSRD applicability is targeted at companies that were already subject to reporting obligations under the NFRD, the predecessor directive that the CSRD supersedes across the European Union. In the banking and financial services sector, that population primarily consists of the largest listed institutions, which had been producing sustainability reports of varying scope and rigour for several years under the less prescriptive prior regime.
The shift to ESRS is expected to drive greater comparability across institutions, addressing a long-standing and frequently voiced criticism of NFRD-era disclosures, which permitted significant flexibility in how companies defined materiality and selected what non-financial information to present. Investors and supervisory authorities have consistently argued that this flexibility made it difficult to assess and compare sustainability performance across institutions or to integrate such information meaningfully into credit analysis or investment decision-making.
Subsequent waves of the CSRD will extend the reporting obligation to smaller listed companies and, ultimately, to non-EU companies with material European operations, progressively widening the population of entities subject to ESRS and extending the directive's reach across the full breadth of the European financial system over the coming years.