Brussels Sets a Data Ceiling: Suppliers With Up to 1,000 Staff Can Now Refuse Extra Sustainability Requests
Published on 10/12/2026 at 15:11 | Editorial boerse-global.de
Small and mid-sized suppliers across Europe have gained a legal shield against what many described as an avalanche of sustainability questionnaires from their largest customers. Under a safeguard known as the Value-Chain-Cap, companies with as many as 1,000 employees may turn down requests for sustainability data that reach beyond the requirements of the EU's new voluntary reporting standard.
The protection applies to financial years beginning on or after 01.01.2027. Large undertakings that fall under the Corporate Sustainability Reporting Directive (CSRD) are barred from demanding data beyond the voluntary standard from suppliers at or below that headcount. The cap covers greenhouse gas accounting for at least Scope 1 and Scope 2 — but not a transition plan. Banks conducting credit risk assessments are exempt from the restriction.
Two standards, one publication date
The European Commission published the simplified European Sustainability Reporting Standards (ESRS) through Delegated Regulation (EU) 2026/1563 on 21.09.2026 in the Official Journal of the European Union. The same issue carried the revised voluntary standard, adopted earlier on 03.07.2026 and published as Regulation (EU) 2026/1560. That voluntary standard took effect on 24.09.2026.
Its architecture is split in two: a basic module running from B1 to B11, and a comprehensive module spanning C1 to C9. Mandatory disclosures on greenhouse gas intensity and the gender pay gap were removed from the voluntary standard, while the carbon footprint for direct and indirect emissions — Scope 1 and Scope 2 — remains obligatory.
Within module B3, companies must report total energy consumption in megawatt-hours, broken down between renewable and non-renewable sources, along with gross Scope 1 and Scope 2 emissions in tonnes of CO2 equivalent. Only operations with a maximum of 10 employees may treat these disclosures as voluntary.
Fewer data points, leaner paperwork
Brussels expects the delegated regulation adopted on 21.09.2026 to cut the administrative cost of corporate reporting by more than 30 percent. Mandatory data points were trimmed by over 60 percent, and total data points by more than 70 percent. The revised framework leans harder on quantitative metrics and narrows the space for purely narrative text.
The publication also clarified the principle of double materiality and drew a sharper line between mandatory and voluntary disclosures. Content was aligned with the Corporate Sustainability Due Diligence Directive (CSDDD) and with global reporting standards.
Greenhouse gas accounting got simpler as well. Instead of applying both control approaches in parallel, companies may now choose between financial control, operational control or the equity share method. Pure trusteeship asset managers were exempted from assessing impacts, risks and opportunities.
When the rules bite
The revised ESRS enter into force on 10.11.2026. Both the updated ESRS and the voluntary standard become binding for financial years starting on or after 01.01.2027.
CSRD-obligated companies can, however, use transitional provisions to apply the new rules as early as financial year 2026. For financial years running from 01.01.2026 to 31.12.2026, they may choose between the old and the new requirements.
Reporting thresholds under the CSRD were already raised in February 2026. The obligation now kicks in only when net turnover exceeds 450 million euros and average headcount reaches 1,000 — both criteria must be met cumulatively. Directive (EU) 2026/470 of 24.02.2026 amended the relevant provisions, and EU member states have until 19.03.2027 to transpose it into national law. Audits begin with limited assurance, with harmonised auditing standards not expected before 01.07.2027.
