What EU Taxonomy alignment actually involves

The EU Taxonomy is a classification system that defines which economic activities can be considered environmentally sustainable under EU law, based on whether they make a substantial contribution to at least one of six environmental objectives while doing no significant harm to any of the others, and meeting minimum social safeguards. Companies in scope of CSRD must disclose the proportion of their turnover, capital expenditure, and operating expenditure aligned with the Taxonomy. Financial institutions must disclose the green asset ratio of their portfolios. Taxonomy alignment analysis requires detailed assessment of operational activities against technical screening criteria (TSC) published in the Climate Delegated Act and other delegated regulations.

Why it's harder in practice than it looks

Technical screening criteria are highly specific and sometimes technically demanding

TSC specify precise thresholds, for example, specific energy performance standards, greenhouse gas emission intensities, or technology specifications, that activities must meet. Determining compliance requires engineering-level data about specific assets, processes, or products, not just general sustainability claims. For companies with complex or diverse asset bases, this assessment is a significant undertaking.

Do No Significant Harm (DNSH) assessments are poorly understood

For an activity to be Taxonomy-aligned, it must demonstrate not just substantial contribution to one objective but also that it does not significantly harm any of the other five. DNSH assessment requires evaluation across climate adaptation, water, circular economy, pollution prevention, and biodiversity objectives, an interdisciplinary analysis that most single-speciality consultants cannot complete in full.

Minimum social safeguards require documented due diligence

Activities must also comply with OECD Guidelines on Responsible Business Conduct and the UN Guiding Principles on Business and Human Rights. Documenting compliance with these requirements, particularly for complex supply chains, is an underestimated component of Taxonomy compliance.

The Taxonomy is still being extended to additional environmental objectives

Current Taxonomy delegated acts cover climate change mitigation and adaptation primarily. Additional delegated acts covering water, circular economy, pollution prevention and biodiversity are in various stages of development. Companies disclosing Taxonomy alignment now should expect requirements to expand and methodology to evolve.

What good looks like

A credible EU Taxonomy disclosure includes a documented activity identification exercise mapping all material revenue, capex, and opex activities to Taxonomy-eligible categories, a technical assessment of TSC compliance for each eligible activity supported by underlying engineering or operational data, a DNSH assessment covering all six environmental objectives, documentation of minimum social safeguard compliance, and clear disclosure of the methodology and data sources used. The output meets CSRD Appendix A disclosure requirements and is reviewed by an external assurance provider.

When to bring in external support

EU Taxonomy assessment requires technical depth across climate science, environmental engineering, legal compliance, and financial reporting that rarely coexists in a single internal team. Leafr's network includes EU Taxonomy specialists who have delivered activity classification assessments and DNSH analyses across real estate, energy, manufacturing and financial services sectors.

Frequently asked questions

What are the six objectives of the EU Taxonomy?

The six environmental objectives are: (1) climate change mitigation, (2) climate change adaptation, (3) sustainable use and protection of water and marine resources, (4) transition to a circular economy, (5) pollution prevention and control, and (6) protection and restoration of biodiversity and ecosystems. An activity must make a substantial contribution to at least one objective and do no significant harm to any of the other five.

What is the difference between Taxonomy-eligible and Taxonomy-aligned?

An activity is Taxonomy-eligible if it falls within the categories of economic activities covered by the Taxonomy, regardless of whether it meets the technical screening criteria. An activity is Taxonomy-aligned if it is eligible and also meets all the substantive criteria: substantial contribution to an environmental objective, DNSH to all others, and minimum social safeguards. Many companies have high eligibility but lower alignment ratios because their activities do not yet meet the TSC thresholds.

Which companies must disclose against the EU Taxonomy?

Companies in scope of CSRD must include Taxonomy-related KPIs (turnover, capex, and opex proportions eligible and aligned) in their CSRD reports. Financial institutions subject to SFDR and the Taxonomy Regulation must disclose the green asset ratio of their portfolios. Large companies outside CSRD scope but subject to NFRD may have transitional Taxonomy disclosure obligations depending on jurisdiction.

How does EU Taxonomy interact with green finance?

Green bonds and sustainability-linked loans increasingly reference EU Taxonomy alignment as a condition for the use of proceeds or as a KPI. Companies with high Taxonomy alignment ratios can more easily qualify for green finance instruments and may access better borrowing terms from lenders with green asset ratio targets. Taxonomy alignment is therefore becoming a material factor in corporate financing strategy as well as regulatory compliance.

Does the EU Taxonomy apply to non-EU companies?

The Taxonomy applies directly to EU companies in scope of CSRD and to EU financial institutions disclosing under SFDR. Third-country companies with CSRD obligations from 2028 will need to disclose Taxonomy-related KPIs. Additionally, non-EU companies that issue green bonds in European markets or seek investment from EU financial institutions face pressure to demonstrate Taxonomy alignment even without a direct legal obligation to do so.