What Is the EU Taxonomy?
The EU Taxonomy is a legal classification framework for sustainable economic activities. Established by Regulation (EU) 2020/852, the system is designed to prevent greenwashing and accelerate capital flows toward sustainable investments (European Parliament and Council, "Regulation (EU) 2020/852," 2020, Article 1).
The Taxonomy operates around six environmental objectives:
- Climate change mitigation
- Climate change adaptation
- Sustainable use and protection of water and marine resources
- Transition to a circular economy
- Pollution prevention and control
- Protection and restoration of biodiversity and ecosystems
The most common source of confusion in this framework is the difference between "eligibility" and "alignment." These two concepts are fundamentally distinct and carry separate reporting consequences.
Eligibility: The First Threshold
An economic activity is considered Taxonomy-eligible if it is described in the EU Taxonomy's delegated acts. In other words, the activity simply needs to appear on the Taxonomy's "list."
Commission Delegated Regulation (EU) 2021/2139 (the Climate Delegated Act) identifies eligible activities and their associated technical screening criteria for the climate change mitigation and climate change adaptation objectives (European Commission, "Commission Delegated Regulation (EU) 2021/2139," 2021).
Example: A construction company's building renovation activity is Taxonomy-eligible because it is described in the Climate Delegated Act as Activity 7.2 "Renovation of existing buildings." However, this does not mean the renovation is sustainable — it merely indicates that it falls within the scope of assessment.
An activity not being eligible does not imply it is environmentally harmful. The Taxonomy's delegated acts are being progressively expanded, and many activity areas are not yet covered.
Alignment: The Real Sustainability Test
Alignment goes far beyond eligibility. For an activity to be considered Taxonomy-aligned, three conditions must be met simultaneously:
1. Meeting Technical Screening Criteria
Each eligible activity must meet specific quantitative and qualitative criteria defined in the delegated acts. For example, for new building construction (Activity 7.1) to be aligned with climate mitigation, its primary energy demand must be at least ten percent lower than "nearly zero-energy building" (NZEB) requirements.
2. Do No Significant Harm (DNSH)
The activity must not "significantly harm" any of the other five environmental objectives beyond the one it contributes to. DNSH criteria are defined separately for each activity. Article 17 of Regulation 2020/852 explicitly defines what constitutes "significant harm" for each environmental objective (European Parliament and Council, "Regulation (EU) 2020/852," 2020, Article 17).
3. Minimum Safeguards
The activity must comply with minimum safeguards in the areas of human rights, anti-corruption, taxation, and fair competition. These safeguards are grounded in the OECD Guidelines for Multinational Enterprises, the UN Guiding Principles on Business and Human Rights, the International Labour Organization's core conventions, and the International Bill of Human Rights.
An Example That Makes the Difference Concrete
Consider an energy company's wind farm operation:
| Assessment | Result | Explanation |
|---|---|---|
| Eligibility | Yes | Activity 4.3 "Electricity generation from wind power" is defined in the delegated acts |
| Technical criteria | Yes | Wind energy directly provides low-carbon electricity generation |
| DNSH | Assessment required | For example: Has an Environmental Impact Assessment been conducted for biodiversity effects? |
| Minimum safeguards | Assessment required | Are human rights due diligence and compliance procedures in place? |
| Alignment | Yes, if all conditions are met | All three conditions must be satisfied |
As illustrated, eligibility is a precondition, but alignment requires a far more comprehensive assessment.
Reporting Obligations: Who Reports What?
Non-Financial Undertakings (NFRD/CSRD Scope)
Companies within the scope of reporting obligations must disclose the Taxonomy-eligible and Taxonomy-aligned shares of their turnover, capital expenditure (CapEx), and operating expenditure (OpEx). According to the Platform on Sustainable Finance's recommendations, these three financial indicators send different strategic signals: turnover reflects current green revenue, CapEx indicates future green transition investment, and OpEx shows capacity to sustain green operations (Platform on Sustainable Finance, "Technical Working Group Recommendations," 2022).
Financial Undertakings
Banks, insurance companies, and asset managers are required to report the Taxonomy-aligned share of their portfolios and investments. This is the core mechanism through which the Taxonomy exerts its steering effect on capital markets.
Reporting Timeline
Companies initially reported only eligibility data, with alignment data becoming mandatory subsequently. Alignment reporting for the first two environmental objectives (climate mitigation and adaptation) has been mandatory since the 2024 financial year; the remaining four objectives have also applied from the 2024 reporting period.
Common Mistakes
The European Commission's FAQ on the EU Taxonomy highlights several frequent errors (European Commission, "Commission FAQ on the EU Taxonomy," 2022):
- Presenting eligibility as proof of sustainability: An activity being Taxonomy-eligible does not automatically make it sustainable.
- Underestimating the DNSH assessment: Companies that meet technical screening criteria but skip DNSH cannot claim alignment.
- Overlooking minimum safeguards: Alignment cannot be claimed without human rights due diligence.
- Interpreting non-eligible activities as "environmentally harmful": The Taxonomy does not yet cover all economic activities.
Practical Preparation Steps
- Activity mapping: Match your company's economic activities with NACE codes and compare them against the Taxonomy activities in the delegated acts.
- Eligibility assessment: Determine which of your activities are defined within the Taxonomy's scope.
- Technical criteria analysis: Review the technical screening criteria for eligible activities and compare them against your current performance.
- DNSH and minimum safeguards gap analysis: Evaluate whether your existing environmental and social management systems meet Taxonomy requirements.
- Data infrastructure: Review your accounting systems to ensure financial data (turnover, CapEx, OpEx) can be disaggregated at the activity level.
Action Item: Map your company's main revenue-generating activities against the activity list in the Taxonomy's delegated acts to establish your eligibility profile. This first step will define the scope of your alignment journey.
See how enterprise teams assess EU Taxonomy alignment across their activities.