CSRD vs VSME: Which One Applies to My Business?

Q: **If I’m an SME, can I ignore CSRD entirely?**

You can ignore the legal obligation, but not the practical impact. Most SMEs receive data requests as part of their clients’ CSRD obligations. Using a VSME report helps you answer these efficiently. For what changed and when, see the EU Omnibus: what changed for CSRD.

If your organisation operates in Europe (whether you are a small business, supplier, or subsidiary), you will eventually hear about CSRD and VSME. One is mandatory for certain large companies. The other is voluntary but increasingly expected across supply chains.

Many businesses ask the same question: “Do we need CSRD, VSME, or both?”

This guide gives you a clear, plain-English comparison. You will see how the two standards differ, how the rules apply to SMEs and non-SMEs, and what suppliers need to prepare as their clients transition to CSRD.

For a plain-language overview, see CSRD for Beginners.

1. CSRD vs VSME: The Clear Explanation

CSRD

The Corporate Sustainability Reporting Directive is the EU’s mandatory reporting law. After the Omnibus I simplification directive (in force 18 March 2026), it applies to:

Large undertakings with more than 1,000 employees and net turnover above €450 million
Certain non-EU (third-country) groups with significant EU turnover and a substantial EU presence

Companies below the 1,000-employee / €450m turnover threshold, including listed and non-listed SMEs, are no longer required to file under CSRD.

CSRD uses the European Sustainability Reporting Standards (ESRS). These require double materiality, detailed environmental and social metrics, forward-looking plans, and assurance.

VSME

The Voluntary Standard for non-listed micro, small, and medium-sized undertakings (VSME) is optional and far simpler. EFRAG created it to help SMEs:

Respond to sustainability data requests from clients and banks
Understand and manage their environmental and social impacts
Align with ESRS topics in a proportionate way

VSME does not require assurance, double materiality, or strategy disclosures at the same depth as CSRD. It is a practical baseline that mirrors what large companies ask their suppliers for.

2. Visual Decision Tree: CSRD or VSME?

Below is a simple text-based decision tree you can use to identify your path.

                           START
                             |
Do you have more than 1,000 employees
AND net turnover above €450 million?
     |
     Yes → CSRD applies (full ESRS)
     |
     No
     |
Are you an SME or other company below that threshold?
(listed or non-listed; micro / small / medium under EU definitions)
     |
     Yes → No CSRD filing required.
           VSME is the voluntary route for answering client requests.
     |
     No
     |
Are you a non-EU (third-country) group with more than €450m EU turnover
AND an EU subsidiary or branch generating more than €200m?
     |
     Yes → CSRD applies (reporting around 2029, for FY2028)
     |
     No → Neither required, but clients may request VSME data

The decision tree shows the most important point: CSRD applies to specific company types; VSME applies everywhere CSRD pressure “flows down” the supply chain.

3. SMEs vs Non-SMEs: How the Rules Actually Apply

Large in-scope companies

If your organisation has more than 1,000 employees and net turnover above €450 million, CSRD applies directly. These companies must report using full ESRS and obtain assurance.

This includes many large manufacturing groups, retailers, logistics companies, financial institutions, and technology providers.

Listed SMEs

Listed SMEs are no longer in mandatory CSRD scope. Omnibus I removed them, along with the separate reporting track and the proportionate ESRS that had been proposed for listed SMEs. Where a listed SME wants or needs to share sustainability data, it can use the voluntary VSME Standard like any other smaller company.

Non-listed SMEs (micro, small, medium)

These companies are not in scope of CSRD. VSME confirms this explicitly: micro-, small-, and medium-sized undertakings whose securities are not admitted to trading fall outside CSRD.

EU size thresholds define the three SME categories:

Micro enterprises: ≤ 10 employees, ≤ €900k turnover, ≤ €450k balance sheet
Small enterprises: ≤ 50 employees, ≤ €10m turnover, ≤ €5m balance sheet
Medium enterprises: ≤ 250 employees, ≤ €50m turnover, ≤ €25m balance sheet

However, non-listed SMEs still need to prepare for data requests from their larger clients.

Subsidiaries of large or listed groups

Subsidiaries may not publish a standalone CSRD report, but parents often require ESRS-aligned data from them for group consolidation. CSRD allows consolidated reporting, meaning internal data requests become more structured.

Non-EU (third-country) groups

A non-EU parent must report under CSRD where it generates more than €450m in EU turnover and has an EU subsidiary or branch generating more than €200m. Reporting for these groups is expected to begin around 2029 (covering financial year 2028).

4. What Suppliers Face from Large Clients

Large companies subject to CSRD must disclose:

Their full value-chain impacts
Scope 3 emissions
Workforce information across the value chain
Risks, dependencies, and policies tied to supplier relationships

This is why suppliers increasingly receive:

Emissions questionnaires
Workforce breakdown requests
Waste and water metrics
ESG policy reviews
Evidence for human-rights or social due diligence

Many SMEs now face multiple requests each year from clients in Germany, France, the Netherlands, Denmark, Sweden, and Poland, often in different formats.

There is now a legal limit on these requests. Since Omnibus I, a CSRD reporter may not require more sustainability information from a business partner with fewer than 1,000 employees than the voluntary SME standard defines. The cap has carve-outs — climate targets, climate risks, and sector-customary information sit outside it — but it makes VSME the reference point for what a reasonable request looks like. Our guide to what large customers can ask suppliers covers the detail.

A simple way to manage these requests is covered in: How SMEs Can Handle Sustainability Data Requests from Large Clients

5. Your Path: CSRD or VSME

By this point the decision tree has told you which side you are on. The two routes are different, so pick the one that matches your scope.

If CSRD applies to you: ESRS, double materiality, assurance

If you are a large in-scope undertaking or a third-country group above the thresholds, VSME is not your answer. Your obligation runs through the full European Sustainability Reporting Standards (ESRS). In practice this means:

A double materiality assessment to decide which topics you report on
Detailed environmental and social metrics, including Scope 3 value-chain emissions
Forward-looking transition plans and policies
Limited assurance over the sustainability statement

This is a larger programme than VSME, and it sits inside your annual report on the same timeline as your financial statements. For a fuller picture of what ESRS expects, see CSRD for Beginners.

If you are a supplier or SME: VSME is your safe, minimal-compliance starting point

If the decision tree placed you outside mandatory CSRD scope, VSME is becoming the standard supplier format because:

1. It aligns with ESRS topics without overwhelming SMEs

The Basic Module covers disclosures B1 to B11 on energy, GHG emissions, waste, water, workforce, and governance.

These are the exact datapoints large clients commonly request.

2. It prevents repetitive work

Instead of filling dozens of separate questionnaires, SMEs create one structured report to share with multiple clients. An ESG answer bank lets a small business reuse those answers each time a customer or bank asks, rather than starting from scratch — and a free VSME report tool generates the finished report from those answers at no cost.

3. It builds credibility with banks and investors

Banks increasingly use sustainability data to assess lending risks. VSME provides a format they recognise and trust.

4. It matches what corporate groups need from subsidiaries

Multinational groups use VSME-aligned datapoints to collect consistent information across subsidiaries.

5. It prepares SMEs for future regulation without requiring it

VSME gives SMEs a low-cost, low-burden path into sustainability reporting. No assurance. No significant strategy documentation. No double materiality. Just clear, relevant data.

For a more detailed overview of VSME requirements, see: CSRD for Beginners: A Plain-Language Guide for Small Businesses

Frequently Asked Questions

If I’m an SME, can I ignore CSRD entirely?

You can ignore the legal obligation, but not the practical impact. Most SMEs receive data requests as part of their clients’ CSRD obligations. Using a VSME report helps you answer these efficiently. For what changed and when, see the EU Omnibus: what changed for CSRD.

Should SMEs ever choose CSRD voluntarily?

Only in rare cases, usually when a smaller company wants to demonstrate fuller transparency to investors or operate as a critical subsidiary within a large group. For most SMEs, VSME is the practical route.

What if I do not have full environmental data yet?

VSME allows reasonable estimates and gradual improvement. Most SMEs begin with utility invoices, waste reports, and simple workforce data. For help selecting emissions factors, see: Emission Factor Selection: How to Choose Data Sources

Key Terms

CSRD: Corporate Sustainability Reporting Directive (EU 2022/2464). Mandatory EU sustainability reporting for large companies above the scope threshold.
VSME: Voluntary Sustainability Reporting Standard for non-listed micro, small, and medium-sized enterprises, developed by EFRAG.
ESRS: European Sustainability Reporting Standards. The detailed rulebook used under CSRD.
EFRAG: European Financial Reporting Advisory Group. The body that develops both ESRS and VSME.
Double materiality: the CSRD test that a topic must be reported if it has a significant impact on people or environment, or if it creates significant financial risk or opportunity.
Scope 3: indirect value-chain emissions (upstream suppliers, downstream customers).
CSRD scope threshold: post-Omnibus, an undertaking is in mandatory scope only if it has more than 1,000 employees and net turnover above €450 million.

Conclusion & Next Steps

The difference is simple: CSRD applies when the law requires it. VSME applies everywhere sustainability expectations show up in day-to-day business.

If CSRD applies to you, your path is the full ESRS: a double materiality assessment, value-chain metrics, transition plans, and limited assurance, reported alongside your financial statements. Start by scoping which topics are material and lining up the data and assurance you will need.

If your organisation is a small or medium business outside that scope, VSME is the safest and most efficient starting point. It prepares you for client requests, improves access to finance, and avoids the heavy requirements of CSRD.

A structured approach and steady progress make sustainability reporting achievable. With each reporting cycle, your organisation gains clarity and confidence.

For the specific modules inside VSME, see VSME Basic vs Comprehensive Module. With a clear structure and consistent effort, sustainability reporting becomes a manageable part of running the business.

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