EU Taxonomy: Eligibility vs Alignment¶
If you work in corporate sustainability, you have heard two words repeated endlessly: "EU Taxonomy." You have probably also heard two more: "eligible" and "aligned." And if you are like most people, the distinction has been explained to you once — possibly by a consultant using a slide deck — and you nodded and never quite felt certain.
Here is the distinction, clearly, with no slide deck.
What Is the EU Taxonomy?¶
The EU Taxonomy is a classification system — a dictionary of what counts as "environmentally sustainable" for economic activities within the European Union. It was created by the EU Taxonomy Regulation (2020/852) and is the foundation of the EU's sustainable finance framework.
Its purpose is to prevent greenwashing. Before the Taxonomy, any company could call any investment "green." An airline could issue a green bond. An oil company could market a sustainability fund. There was no shared definition of what "green" meant. The Taxonomy provides that definition — a legal standard, not a marketing claim.
The Six Environmental Objectives¶
The Taxonomy defines six environmental objectives. An economic activity must substantially contribute to at least one of them to be considered sustainable:
- Climate change mitigation — reducing greenhouse gas emissions or increasing carbon sinks
- Climate change adaptation — reducing the negative effects of climate change on the activity
- Sustainable use and protection of water and marine resources
- Transition to a circular economy — waste prevention, recycling, reuse
- Pollution prevention and control
- Protection and restoration of biodiversity and ecosystems
The first two objectives are covered by the Climate Delegated Act (in force since January 2022). The remaining four are covered by the Environmental Delegated Act (in force since January 2024).
The Core Distinction: Eligibility vs. Alignment¶
This is the distinction that causes the most confusion — and the one that auditors, investors, and regulators scrutinise most closely.
Taxonomy-Eligible¶
An economic activity is eligible if it appears on the EU's list of activities covered by the Taxonomy — the Technical Screening Criteria. The list covers over 100 activities across nine sectors: forestry, environmental protection and restoration, manufacturing, energy, water and waste, transport, construction and real estate, information and communication, and professional services.
Eligibility is a yes/no question: is your activity on the list? A cement manufacturer checking whether cement manufacturing is a Taxonomy-eligible activity is asking whether the Taxonomy covers cement at all. If the activity is on the list, it is eligible. If it is not, it is not — and no further analysis is possible for that activity.
Eligibility is the easy part. Most companies reporting Taxonomy eligibility find that 30-70% of their activities are eligible. This number is commonly reported, and it is commonly meaningless on its own.
Taxonomy-Aligned¶
An eligible activity becomes aligned when it meets all three of the following conditions simultaneously:
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Substantial contribution to at least one of the six environmental objectives. The activity must meet the specific Technical Screening Criteria for that objective — quantitative thresholds, not qualitative intentions. For example, cement manufacturing substantially contributes to climate change mitigation if its specific CO₂ emissions are below 0.498 tonnes per tonne of grey cement clinker. Not "we have a plan." The measured number must be below the threshold.
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Do No Significant Harm (DNSH) to the other five environmental objectives. The activity must not cause significant harm to climate adaptation, water resources, circular economy, pollution, or biodiversity. Each objective has its own DNSH criteria. A cement plant that meets the substantial contribution threshold for climate mitigation but causes unacceptable water pollution would fail DNSH — and would not be aligned.
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Minimum Social Safeguards. The company must comply with the OECD Guidelines for Multinational Enterprises and the UN Guiding Principles on Business and Human Rights, including the ILO core labour standards and the International Bill of Human Rights. This means no forced labour, no child labour, no discrimination, and respect for freedom of association.
Alignment is difficult. Most companies reporting Taxonomy alignment find that only 1-15% of their eligible activities are aligned — and some find 0%. A company reporting 60% eligibility and 5% alignment is not hiding something. That is the typical gap.
Why the Gap Exists¶
The gap between eligibility and alignment exists by design. The EU did not want companies to report high alignment percentages easily. The Taxonomy sets the bar high because it is the standard against which green financial products (EU Green Bonds, climate benchmarks, Article 8/9 funds) are measured.
A company with 0% alignment is not necessarily doing something wrong. It may mean the Technical Screening Criteria are not yet achievable with current technology. What matters to investors is the trajectory: does the company have a credible plan to increase alignment over time?
The Three Mandatory KPIs¶
Companies subject to the Non-Financial Reporting Directive (NFRD) — and, from 2025, the Corporate Sustainability Reporting Directive (CSRD) — must disclose three Key Performance Indicators:
Revenue KPI¶
The proportion of turnover derived from Taxonomy-eligible and Taxonomy-aligned activities. This is the most scrutinised KPI because it ties sustainability directly to the business model. A company with 2% aligned revenue is signalling to investors that its core business is not currently sustainable under the EU definition — a signal that may affect capital allocation.
CapEx KPI¶
The proportion of capital expenditure (CapEx) directed toward Taxonomy-eligible and Taxonomy-aligned assets. This KPI is often higher than the Revenue KPI because it captures investment in the transition. A company building a new low-carbon production line reports high CapEx alignment even if its current Revenue alignment is low. The CapEx KPI shows investors where the company is going, not where it is.
OpEx KPI¶
The proportion of operating expenditure related to Taxonomy-aligned activities. Research and development, building renovation, short-term leases, maintenance and repair — these operating costs count toward alignment if they serve the company's transition. The OpEx KPI is typically the smallest of the three.
Who Must Report¶
| Company Category | Obligation Begins | What to Report |
|---|---|---|
| Large public-interest entities (500+ employees) under NFRD | Already required (FY 2022 onward) | Revenue, CapEx, OpEx KPIs for climate objectives |
| Large companies under CSRD (250+ employees) | FY 2025 (reporting in 2026) | Full Taxonomy disclosure across all six objectives |
| Listed SMEs under CSRD | FY 2026 (reporting in 2027), with opt-out possible until 2028 | Simplified Taxonomy reporting |
| Non-EU companies with significant EU operations | FY 2028 (reporting in 2029) | Full Taxonomy disclosure |
The Strategic Value to Your Business¶
The Taxonomy is not just a reporting obligation. It is a capital allocation signal. EU Green Bonds must allocate proceeds to Taxonomy-aligned activities. EU climate benchmarks must increase their exposure to Taxonomy-aligned companies over time. Asset managers marketing Article 8 or Article 9 funds must disclose the Taxonomy alignment of their portfolios.
A company with documented Taxonomy alignment has preferential access to sustainable finance capital. A company with documented eligibility but no alignment has a credible transition story to tell. A company with neither faces an increasingly expensive cost of capital as sustainability-mandated funds reallocate.
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Frequently Asked Questions¶
Is the EU Taxonomy only for EU companies?¶
No. Non-EU companies with significant EU operations or EU-listed securities are captured. The CSRD extends Taxonomy reporting to qualifying non-EU companies from FY 2028. Additionally, any non-EU company issuing a green bond marketed to EU investors must demonstrate Taxonomy alignment.
What happens if we report 0% alignment?¶
Nothing legally. The Taxonomy does not require you to be aligned — it requires you to report accurately. Many companies in hard-to-abate sectors report 0% alignment in early years. What matters is that your reported numbers are accurate and your CapEx trajectory shows a credible transition plan.
How is the Taxonomy different from CSRD?¶
CSRD is the reporting framework — the obligation to disclose sustainability information. The Taxonomy is a specific classification standard within that framework — the definition of what counts as sustainable. CSRD requires companies to report against the Taxonomy; they are complementary, not alternatives.
Do small companies need to comply?¶
Most SMEs below the CSRD thresholds (fewer than 250 employees) are not legally obligated to report. However, if an SME supplies a larger company that is obligated, the larger company will request Taxonomy-relevant data from the SME. The obligation cascades through the supply chain even if the SME itself has no direct filing requirement.