What Is the EU Taxonomy and How Does It Relate to CSRD?

 The EU Taxonomy and CSRD are often mentioned together in sustainability reporting discussions—and for good reason.

The EU Taxonomy is the EU’s classification system for sustainable economic activities. The Corporate Sustainability Reporting Directive (CSRD) mandates that companies disclose how aligned their operations are with this taxonomy.

In this blog, we’ll explore:

  • What the EU Taxonomy is

  • How it connects to CSRD disclosures

  • What companies must report

  • Common challenges

  • How EcoPrism automates EU Taxonomy alignment

What Is the EU Taxonomy?

The EU Taxonomy is a regulatory framework that defines which economic activities are environmentally sustainable. It’s a key part of the EU Green Deal and is used to direct investments and corporate behavior toward sustainability.

🔗 European Commission: What Is the EU Taxonomy?

Core Objectives of the EU Taxonomy

For an activity to be considered sustainable under the taxonomy, it must:

  1. Substantially contribute to at least one of six environmental objectives

  2. Do no significant harm (DNSH) to the other five objectives

  3. Comply with minimum social safeguards (e.g., labor rights, human rights)

  4. Follow technical screening criteria set by the EU

The Six Environmental Objectives

  1. Climate change mitigation

  2. Climate change adaptation

  3. Sustainable use of water and marine resources

  4. Circular economy

  5. Pollution prevention and control

  6. Protection of biodiversity and ecosystems

How Does CSRD Connect to the EU Taxonomy?

Under CSRD and ESRS 2 (General Disclosures), companies must disclose:

  • Percentage of turnover, CapEx, and OpEx aligned with the EU Taxonomy

  • Which activities are:

    • Eligible under the taxonomy

    • Aligned (eligible + compliant with all criteria)

  • Methodologies used to determine alignment

  • Qualitative information explaining strategy and risks

💬 In short: CSRD brings EU Taxonomy compliance into mandatory annual ESG disclosures.

What Companies Must Report

Per CSRD:

Data PointExplanation
Taxonomy-eligible activitiesActivities that could qualify as sustainable
Taxonomy-aligned activitiesActivities proven to meet technical criteria
% of Turnover (Revenue)Share generated from aligned activities
% of CapExInvestments in sustainable assets or processes
% of OpExOperating spend tied to green activities

📘 Mandatory for all companies in scope starting FY2024

Challenges in EU Taxonomy Reporting

🔍 Mapping Business Activities

  • Companies often struggle to match their business model to taxonomy activity definitions.

📊 Data Granularity

  • CapEx and OpEx data may be grouped in ways that make disaggregation hard.

⚖️ Do No Significant Harm (DNSH)

  • Proving no harm across all six environmental objectives is complex.

🧾 Traceability

  • Ensuring every line item can be backed by documentation and audit logs.

How to Align with the EU Taxonomy (Step-by-Step)

  1. Identify Eligible Activities

  2. Check Technical Screening Criteria

    • Each activity has detailed performance thresholds.

  3. Apply DNSH Principles

    • Conduct impact analysis for other environmental objectives.

  4. Verify Social Safeguards

    • Ensure alignment with OECD, UNGP, and ILO standards.

  5. Quantify Financials

    • Attribute revenue, CapEx, and OpEx to taxonomy-aligned activities.

  6. Document Methodology

    • Prepare clear explanations for each data point, for both internal and external audit.

How EcoPrism Simplifies EU Taxonomy Alignment

EcoPrism makes EU Taxonomy alignment seamless and auditable:

📚 Pre-Mapped Activity Library
– Match your industry to taxonomy activity codes instantly

📊 Turnover, CapEx, OpEx Attribution Engine
– Allocate financial metrics to aligned activities with logic rules

🔍 DNSH and Social Safeguard Validator
– Auto-check compliance based on uploaded policies and risk assessments

📤 Taxonomy Disclosure Dashboard
– View alignment progress and download ESRS/CSRD-ready reports

🧾 XBRL Export with Taxonomy Tags
– Digitally tag taxonomy disclosures for EU submission compliance

🔗 See EcoPrism’s EU Taxonomy Toolkit →

Case Study: European Logistics Company

  • Operates vehicle fleets and warehouses across 7 countries

  • Mapped freight services and EV infrastructure investments to EU Taxonomy

  • Used EcoPrism to tag €63M of CapEx and €14M OpEx

  • Generated CSRD-aligned disclosure in both PDF and XBRL format

FAQs About CSRD and EU Taxonomy

Q: What if none of our activities are eligible?
You must still disclose this. But note—many industries have at least some eligible CapEx or OpEx.

Q: Can I just report eligibility and skip alignment?
No. Alignment disclosures are required starting FY2024 if you are subject to CSRD.

Q: Is this the same as SFDR or ISSB?
No. The EU Taxonomy is a classification system, while CSRD is a reporting regulation. They work together, but have different scopes.

Final Thoughts

CSRD brings the EU Taxonomy from an investment tool to a compliance mandate. Every CSRD-aligned report must now include clear disclosures on sustainability-linked revenue, investments, and operations.

EcoPrism makes this complex task fast, traceable, and audit-ready—giving your team the tools to report with confidence.

👉 Automate Your EU Taxonomy Disclosures with EcoPrism →

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