By Dr Souha Bel Haj Messaoud | Founder, Eco Fluent Solutions Published: May 2026 | Reading time: 11 min
ESRS. VSME. CSR. CSRD. These four acronyms have been everywhere for two years. And for many SME leaders, they end up blurring together — a mix of vague obligations, incomprehensible European standards and acronyms you hesitate to pronounce in a meeting.
Yet these terms refer to very different realities. And confusing one with another means risking preparation for the wrong exercise, or missing a tool that could have simplified your life.
This article clears things up. In plain language, without unnecessary jargon.
CSR, ESRS, simplified ESRS, VSME: the four terms explained
CSR: an approach, not a standard
CSR stands for Corporate Social Responsibility (RSE — Responsabilité Sociétale des Entreprises — in French).
CSR is not a norm, not a standard, not a legal obligation as such. It is a concept — the approach by which a company takes into account its impacts on the environment, its employees, its clients, its suppliers and society in general.
When your client asks about “your CSR approach”, they are asking you to describe what you concretely do in these areas. When a bank talks about “CSR criteria” for green financing, it is assessing the quality of this approach.
CSR is the terrain. ESRS, VSME and other standards are the tools to measure and communicate it.
ESRS: the standards for large companies subject to the CSRD
ESRS stands for European Sustainability Reporting Standards. They were developed by EFRAG (European Financial Reporting Advisory Group) and are integrated into the CSRD (Corporate Sustainability Reporting Directive).
ESRS are the standards that large companies subject to the CSRD must apply to prepare their sustainability report. They cover climate change, biodiversity, water resources, workforce, human rights, governance and many other topics.
They are comprehensive, detailed and demanding standards. They involve hundreds of data points, double materiality analysis, and sophisticated data collection and verification systems.
They are not designed for SMEs. If your company does not exceed CSRD thresholds after the revision introduced by Omnibus I — companies with more than 1,000 employees and more than €450M turnover — you do not have to use ESRS.
Simplified ESRS: for companies still within CSRD scope
In November 2025, EFRAG submitted to the European Commission a draft of simplified ESRS standards. These standards significantly lighten the requirements of full ESRS — a reduction of approximately 70% of data points — for companies still subject to the CSRD but for whom the original standards were considered too burdensome.
In May 2026, the Commission published its draft delegated act on these simplified ESRS, open for public consultation until 3 June 2026. Official adoption is expected in the second quarter of 2026.
Who are simplified ESRS for?
Companies that remain within CSRD scope after Omnibus I — in other words, very large companies exceeding the new thresholds — and that can benefit from a lighter version of reporting standards.
If your SME is not subject to the CSRD, simplified ESRS do not directly concern you either.
VSME: the standard designed for you
VSME stands for Voluntary Sustainability Reporting Standard — a voluntary sustainability reporting standard for SMEs. It was developed by EFRAG specifically for companies not subject to the CSRD but wishing to structure and communicate their sustainability data credibly.
It is voluntary — no legal obligation to use it. It is free — EFRAG provides templates, guides and educational resources. It is proportionate — designed to be applicable with SME resources, without the costs and complexity of full ESRS.
The VSME draws on ESRS — it reuses their structure and vocabulary — but offers a much more accessible version, calibrated for the reality of a small or medium-sized business.
To go further on the VSME as a management tool: The VSME is not just another report: a management tool for SME leaders
What the VSME contains concretely
The VSME is structured in two progressive modules.
The Basic Module
The basic module covers 11 essential indicators, spread across environmental, social and governance themes:
Environment:
- Total energy consumption and share of renewable energy
- Direct greenhouse gas emissions, Scope 1 (your own activities) and indirect energy-related emissions, Scope 2
Social:
- Total headcount and breakdown by contract type
- Staff turnover rate
- Number of workplace accidents
- Gender pay gap
Governance and responsible practices:
- Existence of an anti-corruption policy
- Existence of whistleblowing mechanisms (internal alerts)
These 11 indicators are the minimal entry point. For many SMEs, they already represent a significant step forward in structuring CSR data.
The Comprehensive Module
The comprehensive module goes further. It allows you to describe your sustainability strategy, policies, objectives and actions beyond the figures in the basic module.
It is particularly useful for SMEs that want to go further in their CSR approach, respond to more demanding client questionnaires, or prepare for assessment on platforms such as EcoVadis.
A third module, specifically oriented towards commercial partners, was developed to facilitate responses to value chain requests. This is the most directly useful one if you regularly receive questionnaires from major corporate clients.
Why the VSME is more relevant than simplified ESRS for most SMEs
The table below summarises the essential differences:
| Full ESRS | Simplified ESRS | VSME | |
|---|---|---|---|
| For whom? | Large companies subject to CSRD | Companies subject to CSRD (lightened) | SMEs not subject to CSRD |
| Mandatory? | Yes (if CSRD applies) | Yes (if CSRD applies) | No — voluntary |
| Complexity | Very high | High | Accessible |
| Implementation cost | High (tens of thousands of €) | Moderate | Low |
| Objective | Legal compliance | Lightened legal compliance | Voluntary structuring |
| Useful for responding to clients? | Indirectly | Indirectly | Directly |
If your SME is not subject to the CSRD — which is the case for the vast majority of French SMEs after Omnibus I — the VSME is your reference tool. Simplified ESRS do not directly concern you, unless you are planning rapid growth that would take you beyond the thresholds in the coming years.
How to use the VSME in practice: first steps
Adopting the VSME does not mean producing a 50-page report. It can start very simply.
Step 1: Download the official VSME template
EFRAG provides VSME templates free of charge on its website. The XBRL format (structured digital format) is available, along with user guides in several languages.
Step 2: Start with the basic module
Identify the 11 basic module indicators and assess which ones you can fill in immediately with existing data: energy bills, HR data, safety records.
Step 3: Identify missing data
For indicators you cannot yet fill in, note what would need to be put in place to measure them. This is not a weakness — it is the starting point of a roadmap.
Step 4: Build your VSME dossier progressively
The VSME is not a last-minute annual exercise. It is a management framework that you enrich over time. A quarterly update of key indicators is enough to keep a dossier up to date.
Receiving CSR questionnaires from your clients and don’t know how to organise your responses? ESG Questionnaires: Why SMEs Can No Longer Keep Up
VSME and client requests: the direct link
The VSME was designed with a very specific practical objective: to enable SMEs to respond effectively to CSR requests from their commercial partners — major corporate clients, investors, banks.
The information requested in the VSME and that requested in client questionnaires overlap very largely. A well-completed VSME dossier allows you to respond to most value chain questionnaires without starting from scratch each time.
That is its main value for SMEs: not legal compliance, but operational efficiency in managing CSR requests.
Frequently asked questions
Will the VSME become mandatory for SMEs?
At this stage, no. The VSME remains a voluntary standard. No European directive currently in force imposes it on SMEs. However, its recognition as a reference framework for value chain data is progressing, and some major corporate clients are beginning to mention it explicitly in their supplier questionnaires.
VSME and simplified ESRS: does one replace the other?
No, they address different audiences. Simplified ESRS are a lightened version of ESRS for companies still subject to the CSRD. The VSME is a distinct standard for companies not subject to the CSRD. They are not in competition: if you are not within CSRD scope, it is the VSME that concerns you.
Is the VSME recognised by major corporations as a valid response to their questionnaires?
Recognition is progressing, but it is not yet universal. In practice, a dossier structured according to the VSME covers the information requested in the vast majority of client questionnaires, even if your client does not mention VSME explicitly. What matters is the content, not the label.
What is the difference between VSME and EcoVadis?
EcoVadis is a CSR assessment platform used by major corporations to rate their suppliers. The VSME is a reporting standard. Both draw on the same information, but their logic is different: the VSME helps you structure your data; EcoVadis assesses you on that data according to its own methodology.
Do you need a consultant to use the VSME?
Not necessarily for the first steps. EFRAG templates and guides are accessible to any motivated leader. External support becomes useful when you want to go beyond the basic module, structure your CSR approach strategically, or prepare for more demanding assessments.
Where can you download the official VSME?
Official templates are available free of charge on the EFRAG website: efrag.org. Educational videos are also available in 17 languages.
Structure your CSR approach with the right tools
Confusion between CSR, ESRS, simplified ESRS and VSME is not a comprehension problem — it is an information problem. These terms circulate in different contexts, with sometimes approximate definitions.
Now that you know which one concerns you, the next step is to start. Not to produce a perfect report, but to gather the first data, formalise the first policies, and progressively build a CSR dossier that belongs to you and meets your real needs.
At Eco Fluent Solutions, I have developed practical resources to support SMEs in this approach — without jargon, without unnecessary complexity, with directly usable tools.
→ Discover Eco Fluent Solutions digital resources — templates, guides and practical tools to structure your CSR approach and respond effectively to client requests.
Related articles:
- The VSME is not just another report: a management tool for SME leaders
- CSRD Omnibus reform: why French SMEs remain affected in 2026
- ESG Questionnaires: Why SMEs Can No Longer Keep Up
- Omnibus I is now in force: what French SMEs must do now
Dr Souha Bel Haj Messaoud is the founder of Eco Fluent Solutions, a Paris-based consultancy specialising in ISO management systems, CSR governance and ESG compliance. She supports French and European SMEs in structuring their sustainability data and responding to CSR requirements from major corporate clients. Learn · Comply · Lead — ecofluentsolutions.com
SME support: discover how to structure your responses to ESG and VSME questionnaires.
