CSRD and ESRS deadlines and compliance calendar

Start the calendar with the legal implementation dates, then layer in the undertaking's own financial year-end and Member State publication rules. The CSRD required Member States to transpose the main reporting provisions by 6 July 2024.

The first application wave covers financial years starting on or after 1 January 2024 for large public-interest undertakings with more than 500 employees and public-interest parent undertakings of large groups with more than 500 employees on a consolidated basis.

The original CSRD text then set later waves for other large undertakings and parent undertakings of large groups from financial years starting on or after 1 January 2025, and listed SMEs, certain small and non-complex institutions, captive insurance undertakings, and captive reinsurance undertakings from financial years starting on or after 1 January 2026.

The Commission's current CSRD overview states that the enacted stop-the-clock Directive postpones entry into application for companies that were previously required to report for the first time for financial years 2025 or 2026. Do not treat the original wave two or wave three dates as final without checking the applicable transposing law and the stop-the-clock implementation for the entity.

For each legal entity or consolidated group, keep a row that distinguishes the original CSRD wave from later postponement or simplification measures. This prevents teams from deleting preparation work for wave one while also avoiding unsupported assumptions for postponed waves.

Wave one remains a live reporting calendar item: the Commission notes that a 2025 quick-fix delegated act gives additional flexibility to wave one companies for financial years 2025 and 2026 compared with financial year 2024. Treat that as a disclosure-content caveat for already-reporting companies, not as a general delay of wave one reporting.

For listed SMEs, the CSRD text includes a transitional opt-out until financial years beginning before 1 January 2028, provided the undertaking briefly states in its management report why sustainability reporting was not provided. Put the opt-out assessment, board decision, and management-report wording on the calendar if the entity is in that category.

Once an entity is in scope for a reporting year, the calendar should not stop at the wave date. The Commission FAQ explains that the sustainability statement must be included in a dedicated section of the management report, prepared under ESRS, marked up under the digital taxonomy when applicable, subject to assurance, and published together with the assurance opinion.

The same FAQ states that CSRD does not change the pre-existing management-report publication deadline in the Accounting Directive, which is at the latest 12 months after the balance-sheet date. Issuers under the Transparency Directive also need their annual-financial-report timetable checked separately; the FAQ notes a four-month publication deadline for that annual financial report.

The practical calendar should therefore count backwards from the local statutory publication date, not from a generic EU filing date. Put materiality sign-off, data freeze, assurance readiness, management-report approval, XHTML preparation, XBRL tagging review, and publication submission into separate entries.

Separate legal reporting waves from standards-development milestones. ESRS Set 1 applies from 1 January 2024 for financial years beginning on or after that date, but sector-specific and certain third-country undertaking standards were postponed by Directive (EU) 2024/1306.

Directive (EU) 2024/1306 replaced the 30 June 2024 adoption deadline with 30 June 2026 for the specified delegated acts. That date is a standards-adoption milestone, not a company filing date.

For assurance, keep the current limited-assurance engagement workstream distinct from future EU assurance-standard milestones. The Commission FAQ states that limited assurance standards are to be adopted by 1 October 2026 and reasonable assurance standards by 1 October 2028, following the required assessment.

A usable CSRD calendar record should make the reporting basis auditable. It should show which legal wave or caveat the team relied on, which annual-report deadline controls publication, and which evidence must exist before management-report approval.

Keep proposed simplification measures, political agreements, delegated acts, and enacted directives in separate status fields. That helps visitors and internal users see whether a date is already binding for the entity or still needs national-law confirmation.