VSME vs CSRD: Key Differences Every SME Needs to Know

The VSME (Voluntary Sustainability Reporting Standard for SMEs) and the CSRD (Corporate Sustainability Reporting Directive) are two distinct EU sustainability reporting frameworks designed for different types of companies. VSME is a voluntary standard for non-listed small and medium enterprises with approximately 60 ESG indicators. CSRD is a mandatory directive for large companies with 320+ data points, external audit requirements, and comprehensive double materiality assessments. After the Omnibus I Directive (February 2026) reduced CSRD scope to companies with 1,000+ employees, understanding which framework applies to your company has never been more important.

Side-by-Side Comparison

Dimension	VSME	CSRD (Post-Omnibus I)
Legal status	Voluntary (EU Commission recommendation)	Mandatory (EU Directive)
Who it applies to	Non-listed SMEs (voluntary)	Companies with 1,000+ employees AND EUR 450M+ turnover
Number of companies affected	Millions (voluntary adoption)	~1,000 in the EU
Reporting standards	VSME Standard	ESRS (European Sustainability Reporting Standards)
Data points	~60 (Basic Module)	~320 (post-Omnibus I simplification)
Double materiality assessment	Not required	Required
External audit	Not required	Required (limited assurance)
Scope 3 emissions	Only in Comprehensive Module	Required
Digital taxonomy	VSME XBRL taxonomy	ESRS XBRL taxonomy
First reporting year	Voluntary (anytime)	FY 2025 for first wave; FY 2027 for simplified ESRS
Estimated cost	EUR 2,000–20,000/year	EUR 50,000–500,000/year
Reporting frequency	Annual (recommended)	Annual (mandatory)
Penalties for non-compliance	None (voluntary)	Member state sanctions

How Omnibus I Changed Everything

Before Omnibus I (adopted 24 February 2026), the CSRD was set to apply to approximately 49,000 companies across the EU, including many medium-sized and listed SMEs. The Omnibus I Directive fundamentally reshaped this landscape:

New CSRD Thresholds (Post-Omnibus I)

Employees: 1,000+ (previously 250+)
Turnover: EUR 450M+ (previously EUR 50M+)
Result: ~48,000 companies removed from CSRD scope
First application: Financial year 2027 for simplified ESRS

The Value Chain Cap

Perhaps the most important Omnibus I change for SMEs is the value chain cap. CSRD-reporting companies can no longer request sustainability data from SME suppliers that exceeds the scope of VSME. This means:

VSME defines the maximum ESG data request an SME can receive from a supply chain partner
SMEs can refuse data requests that go beyond VSME disclosures
This creates a clear, predictable reporting obligation for SMEs

Decision Framework: Which One Applies to You?

Choose VSME if your company:

Has fewer than 1,000 employees
Has annual turnover below EUR 450 million
Is not listed on an EU-regulated market
Is in the supply chain of a CSRD-reporting company
Wants to proactively demonstrate sustainability performance
Needs to respond to bank or investor ESG questionnaires
Is a micro-enterprise starting sustainability reporting for the first time

Choose CSRD (ESRS) if your company:

Has 1,000+ employees AND EUR 450M+ turnover
Is listed on an EU-regulated market (any size)
Is a large third-country company with EUR 450M+ EU revenue
Was already reporting under NFRD (Non-Financial Reporting Directive)

What if you are in the grey zone?

Some companies were previously in CSRD scope but are now exempt after Omnibus I. If this is your situation:

Check if you fall below the new thresholds (1,000 employees / EUR 450M turnover)
If you are now exempt, you can stop CSRD preparation and adopt VSME instead
If you already started CSRD work, the data collected is fully compatible with VSME
If you are listed on a regulated market, the LSME (Listed SME) standard may apply instead of VSME

Sounds like VSME applies to you?

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Can You Switch from CSRD to VSME?

Yes. Companies that were preparing for CSRD but now fall below the Omnibus I thresholds can transition to VSME. Key considerations:

Data reuse: ESRS data maps directly to VSME disclosures (VSME is a subset of ESRS)
Cost savings: Moving from CSRD to VSME can reduce reporting costs by 70–90% (see our pricing)
Stakeholder communication: Inform supply chain partners and investors of the transition
Timeline: The simplified ESRS applies from FY 2027, but VSME can be adopted immediately

Switching from CSRD to VSME?

Any ESRS data you've already collected maps directly to VSME disclosures. Import it into VSME Reporter and pick up where you left off — or book a 15-minute walkthrough if you want to talk it through.

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How VSME and CSRD Work Together

VSME and CSRD are not competing frameworks. They are complementary parts of the EU's sustainability reporting ecosystem:

EU Sustainability Reporting Ecosystem:

Large companies (1,000+ employees, EUR 450M+)
  └── Report under CSRD / ESRS (mandatory)
       └── Request supply chain data from SMEs
            └── SMEs report under VSME (voluntary)
                 └── Data flows seamlessly (aligned taxonomy)

The data structure of VSME deliberately mirrors ESRS, so sustainability data collected by SMEs under VSME can be directly consumed by CSRD-reporting companies without translation or remapping.

Cost Comparison

Cost Category	VSME (Basic Module)	CSRD (Post-Omnibus I)
Software/tools	EUR 600–6,000/year	EUR 15,000–100,000/year
External consultants	EUR 0–10,000	EUR 30,000–200,000
External audit	Not required (EUR 0)	EUR 20,000–100,000
Internal staff time	40–120 hours/year	500–2,000 hours/year
Training	EUR 500–2,000	EUR 5,000–20,000
Total estimated	EUR 2,000–20,000/year	EUR 70,000–500,000/year

Complexity Comparison

Reporting Element	VSME Approach	CSRD Approach
Materiality	Optional, simplified	Mandatory double materiality assessment
Value chain	Own operations + direct suppliers (Basic)	Full upstream and downstream value chain
Emissions	Scope 1 & 2 mandatory; Scope 3 optional	Scope 1, 2, and 3 mandatory
Governance	Basic policy description	Detailed board oversight, risk management
Targets	Optional	Mandatory climate targets with pathways
Transition plan	Optional (Comprehensive Module)	Mandatory for climate
Biodiversity	Qualitative description	Detailed impact and dependency assessment

Frequently Asked Questions

Can a company report under both VSME and CSRD?

No. If you are subject to CSRD, you report under ESRS. If you are an SME not subject to CSRD, you use VSME. They are designed for different audiences.

Does the Omnibus I value chain cap protect SMEs from excessive data requests?

Yes. CSRD-reporting companies can only request supply chain ESG data from SMEs up to the level defined by VSME. They cannot impose ESRS-level reporting on their SME suppliers.

Is VSME accepted internationally?

VSME is an EU standard, but it is gaining recognition among non-EU companies that supply to European markets. It is compatible with GRI and aligned with ISSB concepts, making it a useful framework even outside the EU.

What happens if VSME becomes mandatory?

From 2026 onward, the European Commission may adopt VSME as a delegated act, which could embed it more firmly in EU law. However, even if formalized, the intent is for VSME to remain proportionate and lower-burden than CSRD.

My company was preparing for CSRD Wave 3. Should we stop?

If you now fall below the Omnibus I thresholds (fewer than 1,000 employees or less than EUR 450M turnover), you are no longer subject to CSRD. You can transition to VSME and significantly reduce your reporting effort. Any ESRS data already collected is directly reusable.

Published by VSME Reporter. Updated April 2026.

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