CSRD vs ESRS: What's the Difference? Complete 2026 Guide

The Corporate Sustainability Reporting Directive (CSRD) and European Sustainability Reporting Standards (ESRS) are often mentioned together, but they serve different purposes. Understanding the distinction is critical for companies preparing their sustainability disclosures. This guide explains what each framework covers, how they relate, and what your company needs to do to comply.

What is CSRD?

The CSRD (Corporate Sustainability Reporting Directive) is a **European Union regulation** that mandates sustainability disclosures for nearly 50,000 companies. Think of it as the **"what" and "when"** of sustainability reporting.

CSRD Key Facts:

• **Scope:** Applies to all large companies (€25M+ revenue, 500+ employees) and listed SMEs

• **Timeline:** Large companies start reporting in 2024 (disclosure 2025), SMEs in 2025 (disclosure 2026)

• **Assurance:** Mandatory third-party assurance (limited initially, reasonable by 2028)

• **Purpose:** Standardise sustainability disclosures across Europe to reduce greenwashing and inform investors

• **Reference:** EU Directive 2022/2464

CSRD covers:

• Double materiality assessment (impact + financial)

• Environmental, social and governance (ESG) topics

• Supply chain due diligence

• Climate transition plans

• Stakeholder engagement

**Real example:** A logistics company with €100M revenue and 800 employees in Germany must report under CSRD starting 2024.

What is ESRS?

The ESRS (European Sustainability Reporting Standards) is the **technical standard** that specifies exactly what data to report under CSRD. Think of it as the **"how" and "what data"** of sustainability reporting.

ESRS Key Facts:

• **Purpose:** Define which specific metrics, datapoints and disclosures are required under CSRD

• **Coverage:** 12 topical standards (E1-E5, S1-S4, G1) + 2 cross-cutting standards

• **Datapoints:** Over 1,100 specific metrics across environmental, social and governance topics

• **Approved by:** EFRAG (European Financial Reporting Advisory Group) and EU Commission

• **Status:** Mandatory under CSRD (no optionality)

ESRS Standards Explained:

CSRD vs ESRS: Side-by-Side Comparison

How CSRD and ESRS Work Together

Think of CSRD and ESRS as **layers:**

**Layer 1 (Regulatory): CSRD**

• "You must report on sustainability"

• "You must conduct double materiality assessment"

• "Your report must be assured by third party"

**Layer 2 (Technical): ESRS**

• "Here are the 12 standards that cover sustainability"

• "Here are the 1,100+ datapoints you need to report"

• "Here are quality requirements (relevance, verifiability, etc.)"

**Real workflow:**

1. Company determines scope (CSRD regulation)

2. Company conducts double materiality assessment (CSRD requirement)

3. Company identifies which ESRS standards are material (ESRS mapping)

4. Company collects datapoints required under material ESRS standards (ESRS metrics)

5. Company publishes consolidated report with assurance (CSRD + ESRS enforcement)

Key Differences in Practice

CSRD Sets the Mandate

CSRD says: "If you're a large European company, you must report on sustainability annually with third-party assurance."

This applies to:

• Companies headquartered in EU with 500+ employees

• Non-EU companies operating in EU with similar revenue/headcount thresholds

• Listed SMEs (€50M+ revenue) starting 2025

ESRS Specifies What to Report

ESRS says: "Here are 12 standards covering environmental, social and governance topics. Report on the ones that are material to your business."

Example ESRS E1 (Climate) datapoints:

• Total and scope-specific GHG emissions (tonnes CO2e)

• GHG intensity ratio (emissions per revenue/employee)

• Climate scenario analysis (1.5°C, 2°C, 3°C pathways)

• Climate transition plan targets and milestones

• Climate risk financial impact assessment

Timeline: When CSRD and ESRS Apply

Double Materiality: How CSRD & ESRS Connect

Both CSRD and ESRS require **double materiality assessment:**

**1. Impact Materiality (CSRD → ESRS)**

• How does your company impact the environment, society and people?

• Example: Does your supply chain have high water stress impact? → Report ESRS E3 (Water)

**2. Financial Materiality (CSRD → ESRS)**

• How do sustainability issues impact your business financially?

• Example: Will carbon pricing increase your costs? → Report ESRS E1 (Climate) + financial impact

The double materiality assessment determines **which ESRS standards you must report on.** Not all 12 ESRS standards apply equally to every company.

Common Misconceptions

Misconception 1: "We must report all 1,100+ ESRS datapoints"

**Reality:** You report only datapoints for material ESRS standards. A software company may not need to report all ESRS E3 (water) metrics if water is not material to their operations.

Misconception 2: "CSRD and ESRS are the same thing"

**Reality:** CSRD is the regulation; ESRS are the standards. It's like saying "tax law and accounting principles are the same." They're related but distinct.

Misconception 3: "ESRS only applies if CSRD applies"

**Reality:** Correct—if CSRD applies to your company, you must use ESRS standards for reporting. Companies outside CSRD scope can voluntarily use ESRS.

Misconception 4: "ESRS standards won't change"

**Reality:** ESRS are reviewed annually. Sector-specific standards and updated metrics are coming in 2024-2026.

What Your Company Should Do

Step 1: Determine CSRD Scope

Are you in scope? Check:

• Headcount: 500+ employees

• Revenue: €25M+ (or €50M+ for SMEs)

• Location: EU-headquartered or significant EU operations

Step 2: Understand Your Materiality

Conduct double materiality assessment to identify:

• Which ESRS standards are material to your business

• Which specific metrics you must report

Step 3: Data Readiness

Audit your data sources:

• Energy: Can you pull Scope 1+2 from utility bills and ERP?

• Workforce: Can HR systems provide headcount, turnover, diversity?

• Supply Chain: Can you survey suppliers for Scope 3?

• Governance: Do you have board diversity and anti-corruption data?

Step 4: Select Reporting Tool

Options range from spreadsheets to enterprise ESG platforms. Key requirements:

• Supports all 12 ESRS standards

• Tracks evidence for assurance readiness

• Automates calculations (emissions, ratios, etc.)

• Generates CSRD-compliant reports

Timeline Example: Manufacturing Company

A mid-size German chemicals manufacturer with €80M revenue and 600 employees:

**2024:** Conducted double materiality → identified 7 material ESRS standards (E1, E2, E3, E5, S1, S2, G1)

**2024:** Built ESG data layer mapping 150+ datapoints

**Early 2025:** Compiled first CSRD report using ESRS standards

**May 2025:** Third-party auditor conducted limited assurance

**June 2025:** Published consolidated sustainability report on website

FAQ: CSRD vs ESRS

**Q: Can we report on ESRS without CSRD applying?**

A: Yes, ESRS can be used voluntarily. Many companies outside CSRD scope use ESRS to demonstrate sustainability leadership.

**Q: What if our company is not EU-headquartered but operates in Europe?**

A: If you have significant EU operations (500+ employees), CSRD likely applies. Check the EU guidance on scope.

**Q: How often do ESRS standards change?**

A: The base 12 standards are stable through 2026. Sector-specific standards are being added 2024-2026. Minor updates occur annually.

**Q: Is CSRD/ESRS compliance expensive?**

A: First-year costs average €150,000-€500,000 (depending on company size and data maturity). Year-two costs typically drop 40-50% as processes mature.

**Q: What is the penalty for non-compliance?**

A: EU member states set penalties, typically €5,000-€50,000 per violation. Reputational damage from missed deadline or failed assurance is often higher.

Bottom Line

• **CSRD** = The EU regulation saying "you must report sustainably"

• **ESRS** = The technical standards saying "here's exactly what to report"

• **Together** = A comprehensive sustainability reporting framework that raises the bar for corporate transparency

If you're in scope, start with double materiality assessment to understand which ESRS standards apply, then build the data infrastructure to report them consistently.

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*ESG Data Core helps companies automate CSRD & ESRS reporting. [Schedule a demo](#contact) to see how we can reduce your compliance timeline from months to weeks.*