Last updated: · 4 min read
Status, September 2026: A simplifying delegated act applies from January 1, 2026 (covering financial year 2025 reports): activities that together make up less than 10% of turnover, capex, or opex no longer need a detailed alignment assessment. Taxonomy reporting applies to companies within CSRD scope, so the Omnibus I scope cut also narrows who reports. Source: Linklaters.
What Is the EU Taxonomy?
The EU Taxonomy Regulation (2020/852) establishes a unified classification system for environmentally sustainable economic activities across the European Union. It provides technical criteria that determine whether a specific economic activity can be classified as 'green' — creating a common language for sustainable finance and corporate disclosure.
The Taxonomy is a cornerstone of the EU's sustainable finance framework, designed to direct capital toward genuinely sustainable activities and combat greenwashing.
Who It Applies To
- CSRD-reporting companies: Must disclose Taxonomy eligibility and alignment of revenue, capital expenditure, and operating expenditure. After the Omnibus I amendments, CSRD (and so this duty) covers companies with more than 1,000 employees and more than €450 million in net turnover from financial year 2027
- Financial market participants: Must disclose Taxonomy alignment of financial products under SFDR
- The EU and member states: Must apply the Taxonomy criteria in any public measures, standards, or labels for financial products or corporate bonds marketed as environmentally sustainable
- Banks in CSRD scope: Must report the Green Asset Ratio (GAR) showing Taxonomy-aligned activities in their portfolios
Key Requirements
Four-step assessment:
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Taxonomy eligibility: Is your economic activity described in the Taxonomy? Not all activities are covered — only those with significant potential for environmental contribution.
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Substantial contribution: Does the activity meet the Technical Screening Criteria (TSC) for at least one environmental objective? For example, electricity generation from geothermal energy must have lifecycle emissions below 100g CO2e/kWh, while solar PV generation qualifies without an emissions threshold.
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Do No Significant Harm (DNSH): Does the activity avoid significant harm to the other five environmental objectives? Each TSC includes specific DNSH criteria.
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Minimum safeguards: Does the company comply with OECD Guidelines, UN Guiding Principles on Business and Human Rights, ILO core conventions, and the International Bill of Human Rights?
Reporting metrics:
- Taxonomy-eligible revenue, CapEx, and OpEx as a percentage of total
- Taxonomy-aligned revenue, CapEx, and OpEx as a percentage of total
- Breakdown by environmental objective
Since January 1, 2026 (financial year 2025 reports), activities that together make up less than 10% of turnover, capex, or opex no longer need a detailed alignment assessment, and the reporting templates are shorter.
The Six Environmental Objectives
- Climate change mitigation: Activities that reduce GHG emissions (renewable energy, energy efficiency, clean transport, green buildings)
- Climate change adaptation: Activities that reduce vulnerability to climate impacts (climate-resilient infrastructure, warning systems)
- Water and marine resources: Activities protecting aquatic ecosystems and water quality
- Circular economy: Activities minimizing waste and keeping materials in use
- Pollution prevention: Activities reducing pollution of air, water, and soil
- Biodiversity: Activities protecting and restoring ecosystems
Timeline
- July 2020: Taxonomy Regulation entered into force
- January 2022: Climate Delegated Act applied (objectives 1 & 2)
- January 2024: Environmental Delegated Act applied (objectives 3-6)
- January 2026: Simplifying delegated act (Delegated Regulation (EU) 2026/73) applies from financial year 2025 reports, adding the 10% materiality threshold; companies may defer it by one year
- March 2026: Omnibus I enters into force, narrowing CSRD scope, and with it Taxonomy reporting, from financial year 2027
- Ongoing: Technical screening criteria are periodically reviewed and updated
Compliance Steps
- Map economic activities: Identify which of your revenue-generating activities, CapEx, and OpEx are described in the Taxonomy
- Assess eligibility: Determine which mapped activities are Taxonomy-eligible
- Evaluate substantial contribution: Test eligible activities against Technical Screening Criteria for the relevant environmental objective
- Apply DNSH criteria: Verify that each substantially contributing activity does not significantly harm the other five objectives
- Verify minimum safeguards: Confirm compliance with human rights, anti-corruption, tax, and competition requirements
- Calculate KPIs: Compute Taxonomy-aligned percentages for revenue, CapEx, and OpEx
- Disclose in management report: Include Taxonomy reporting as part of CSRD sustainability statement
Penalties
Penalties follow CSRD enforcement mechanisms as Taxonomy reporting is embedded in CSRD disclosure. Additionally:
- Misrepresentation of Taxonomy alignment could constitute greenwashing
- Financial institutions face regulatory scrutiny from national supervisors
- Investment funds claiming green credentials without proper Taxonomy assessment face SFDR enforcement
How Council Fire Can Help
Council Fire helps companies navigate the EU Taxonomy — from activity mapping and technical screening criteria assessment through DNSH analysis and KPI calculation. We make Taxonomy reporting practical and audit-ready. Contact us for EU Taxonomy support.

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