CSRD for SMEs: What Listed Small Companies Need to Know

The Corporate Sustainability Reporting Directive (CSRD) represents a significant shift in how European companies report on environmental, social, and governance (ESG) matters. For small and medium-sized enterprises (SMEs), particularly those listed on EU regulated markets, understanding CSRD requirements is no longer optional - it's a compliance imperative. This guide breaks down what listed SMEs need to know about CSRD in 2026 and beyond.

Which SMEs Are Affected by CSRD

Listed SMEs on EU Regulated Markets Face New Obligations

Listed SMEs on EU regulated markets face mandatory CSRD reporting starting in 2026 for their first disclosure period. This means that companies with securities traded on an EU-regulated market must begin compiling their sustainability reports under CSRD rules, with first reports due in 2027. The threshold applies regardless of company size - if you're listed on an EU regulated market, CSRD applies to you.

The definition of SMEs for CSRD purposes differs from traditional EU SME classifications. Under CSRD, a listed small company is defined as:

• Having a headcount of 250 employees or fewer
• Annual turnover of EUR 50 million or less
• Total assets of EUR 25 million or less

This narrower definition means some traditionally categorized "large SMEs" will fall under full CSRD requirements.

Opt-Out Option Available Until 2028

Listed SMEs have a temporary relief mechanism built into CSRD. Companies can opt out of CSRD requirements until December 31, 2028, giving them an additional two years to prepare. However, this opt-out is not permanent - it merely postpones compliance. After 2028, all listed SMEs must comply with CSRD reporting obligations, with their first reports due in 2029.

Organizations considering the opt-out should weigh short-term relief against the risk of accelerated preparation when the exemption expires.

The VSME Standard: A Simplified Voluntary Path

Understanding the VSME Standard

The Voluntary Sustainability Reporting Standard for Small and Medium-Sized Enterprises (VSME) represents a game-changer for non-listed SMEs. Developed by the European Financial Reporting Advisory Group (EFRAG), the VSME standard provides a simplified, proportionate approach to sustainability reporting specifically designed for smaller companies.

The VSME standard allows non-listed SMEs to voluntarily report on sustainability matters using streamlined requirements. Rather than applying the full European Sustainability Reporting Standards (ESRS), which form the backbone of CSRD compliance for large companies, VSME offers a condensed framework focusing on material sustainability topics.

Who Can Use VSME and Key Advantages

Non-listed SMEs can voluntarily adopt VSME to:

• Build investor and stakeholder credibility
• Meet supply chain requirements from larger CSRD-mandatory companies
• Prepare early for potential future CSRD expansion
• Differentiate themselves in the market

The VSME standard is entirely voluntary for non-listed SMEs. It does not impose the same level of detail as mandatory CSRD but provides sufficient rigor to satisfy most corporate supply chain expectations.

What Listed SMEs Must Disclose Under CSRD

Simplified ESRS Requirements for Listed SMEs

Listed SMEs must report using the European Sustainability Reporting Standards (ESRS), but with simplified requirements compared to large companies. The CSRD framework recognizes that smaller organizations may have more limited resources and structural complexity than multinational corporations.

Listed SMEs must disclose information across three core areas:

• Environmental topics: Climate change, pollution, water and marine resources, biodiversity, and circular economy
• Social topics: Own workforce, workers in the value chain, affected communities, and consumers/end-users
• Governance topics: Business conduct and transparency

However, listed SMEs benefit from a "proportionality principle" - they report using a condensed version of ESRS standards that eliminates some of the most granular, technically complex requirements reserved for large enterprises.

Double Materiality Assessment for SMEs

Double materiality forms the foundation of CSRD reporting. This concept requires companies to evaluate sustainability issues from two angles: financial materiality (impact on the company) and impact materiality (company's impact on the environment and society).

For listed SMEs, the double materiality process is simplified. Rather than conducting the exhaustive, data-intensive assessments required of large enterprises, SMEs can use a more streamlined approach. See our detailed guide on Double Materiality Assessment Guide for step-by-step implementation.

A simplified double materiality approach for SMEs typically includes:

• Stakeholder engagement through surveys or interviews
• Review of industry benchmarks and peer practices
• Assessment of financial and sustainability risks relevant to the company's size
• Documentation of materiality decisions

Supply Chain Pressure: CSRD Extends Beyond Listed SMEs

Non-Listed SMEs Face Indirect CSRD Impact

Even if your SME isn't listed on an EU regulated market, you may still need to prepare for CSRD-related disclosures. Large companies subject to mandatory CSRD reporting increasingly require suppliers and partners to provide sustainability data. This creates an indirect compliance obligation for non-listed SMEs in their supply chains.

Companies that supply to CSRD-mandatory firms should expect requests for:

• Scope 1 and 2 greenhouse gas emissions data
• Supply chain due diligence documentation
• Sustainability certifications or audit reports
• Water usage and waste management metrics

Non-listed SMEs can address this pressure by adopting the VSME standard voluntarily or preparing their own sustainability data management systems to quickly respond to customer requests.

First-Mover Advantage

SMEs that begin CSRD or VSME preparation early gain competitive advantages. They can:

• Secure preferred supplier positions with large CSRD-mandatory companies
• Build investor interest ahead of potential future regulatory expansion
• Reduce operational risks related to climate and social issues
• Develop internal data governance capabilities

Additional Context: Related CSRD Resources

For comprehensive background on CSRD requirements and timelines, see our guides to What is CSRD? and CSRD Timeline. These resources detail the broader regulatory landscape affecting European companies across all size categories.

FAQ: CSRD for SMEs

Does CSRD apply to my small business in the EU?

CSRD applies to your business if you are listed on an EU regulated market, regardless of company size. Non-listed SMEs are not currently subject to mandatory CSRD but face indirect pressure through supply chain requirements. Many non-listed SMEs voluntarily adopt VSME standards or prepare sustainability reports to meet customer expectations.

What is the VSME standard and who can use it?

The VSME (Voluntary Sustainability Reporting Standard for Small and Medium-Sized Enterprises) is a simplified, proportionate sustainability reporting framework developed by EFRAG. Non-listed SMEs can voluntarily adopt VSME to demonstrate sustainability performance, meet supply chain requirements, and prepare for potential future regulatory expansion. Listed SMEs must use full ESRS standards but with proportionality applied.

Can listed SMEs opt out of CSRD?

Listed SMEs can temporarily opt out of CSRD reporting until December 31, 2028. This opt-out delays compliance by two years, allowing organizations additional time to prepare. However, the opt-out is temporary - mandatory compliance resumes in 2029, with first reports due in that year.

When is the CSRD deadline for EU listed SMEs?

Listed SMEs must begin CSRD compliance in their 2026 financial year, with first sustainability reports due by 2027. Organizations that opt out gain until 2029 to submit their first report. The CSRD deadline applies to all listed SMEs, regardless of employee count, turnover, or asset size.

What is double materiality and why does it matter for SMEs?

Double materiality requires companies to assess sustainability topics from two perspectives: financial materiality (impact on the company's finances) and impact materiality (the company's impact on the environment and society). For SMEs, the assessment is simplified compared to large enterprises but remains essential for identifying which sustainability topics to report on comprehensively.

Conclusion: Prepare Now for CSRD Compliance

Listed SMEs on EU regulated markets face a clear CSRD compliance timeline: reporting begins in 2026, with first reports due in 2027. Even SMEs with the opt-out option should begin preparing now - two years passes quickly, and sustainability data collection requires time and systematic processes.

Non-listed SMEs should equally prioritize CSRD preparation. While not currently mandatory, supply chain pressure from CSRD-mandatory companies creates de facto compliance expectations. Adopting VSME standards or developing sustainability reporting capabilities today positions your organization for success in 2026 and beyond.

Platforms like Greenio streamline CSRD and VSME compliance by automating data collection, double materiality assessments, and reporting workflows. Whether you're a listed SME preparing for mandatory CSRD or a non-listed SME voluntarily adopting VSME, building systematic sustainability reporting infrastructure today reduces stress tomorrow.