2026 ESG Reporting: CSRD Drives SME Digital Transformation
3 min read
Key Takeaways
- The EU-CSRD mandates sustainability reporting for medium-sized enterprises starting in 2025/2026.
- Approximately 15,000 German companies will be affected by the expanded reporting requirements.
- ESG data must be machine-readable, auditable, and prepared according to ESRS standards.
- The greatest challenge is capturing Scope-3 emissions across the entire supply chain.
- Digital ESG platforms automate data collection and reduce reporting efforts by 60%.
The Corporate Sustainability Reporting Directive (CSRD) is no longer a voluntary sustainability report – it is now a legal requirement. Starting from the 2025 fiscal year, large companies must report in detail on environmental, social, and governance factors. From 2026, medium-sized enterprises with more than 250 employees will also be subject to these reporting requirements.
What the CSRD Specifically Requires
The CSRD significantly expands the scope of the previous Non-Financial Reporting Directive (NFRD). Companies meeting two of the three criteria – more than 250 employees, more than 50 million Euros in revenue, or more than 25 million Euros in balance sheet total – are required to report. The report must be prepared according to the European Sustainability Reporting Standards (ESRS) and is subject to audit.
The ESRS encompass twelve standards across three categories: Environment (climate change, environmental pollution, water, biodiversity, circular economy), Social (own workforce, supply chain, affected communities, consumers), and Governance (corporate governance, risk management, internal controls).
The Data Challenge: From Excel to Platform
ESG reporting requires data from a dozen sources: energy consumption (electricity bills, gas bills), business travel (expense reports), fleet (tank receipts, leasing agreements), suppliers (questionnaires, certifications), and employees (diversity data, workplace safety, training).
Most medium-sized enterprises currently collect this data manually and in a fragmented manner. Digital ESG platforms like Sphera, Workiva, Plan A, and Persefoni automate data collection, validate inputs, and generate ESRS-compliant reports. This reduces the workload from several months to just a few weeks.
Scope-3 Emissions: The Greatest Hurdle
Scope 1 (direct emissions) and Scope 2 (electricity and heat) are relatively straightforward to measure. However, Scope 3 emissions, which encompass indirect emissions in the supply chain and beyond, account for 70-90% of a company’s carbon footprint and are the most challenging to quantify.
Practical Approaches: Spend-Based Method (emission factors per Euro of purchasing volume – quick but less accurate), Activity-Based Method (emission factors per ton of material or km of transport – more precise but data-intensive), and Supplier-Specific Method (actual emission data from suppliers – most accurate but requires collaboration).
The pragmatic path: Start with the Spend-Based Method and transition to the Activity-Based or Supplier-Specific Method for the top 20 suppliers (responsible for 80% of emissions).
Leveraging ESG as a Competitive Advantage
The CSRD is a compliance requirement, but it is not merely a cost factor. Companies that systematically collect ESG data gain operational transparency: Energy efficiency opportunities become visible, supply chain risks become measurable, and employee satisfaction becomes trackable.
Banks and investors are increasingly using ESG data for credit decisions and evaluations. A good ESG score can lead to better financing conditions, while a poor score can have the opposite effect. For B2B companies, ESG certifications are becoming a requirement for major customers in their supplier selection processes.
Implementation Roadmap for SMEs
Q1: Materiality Assessment (Double Materiality Assessment) – which ESG topics are relevant to the company? This assessment is mandatory under ESRS and serves as the strategic starting point.
Q2: Identify data sources, define data collection processes, evaluate and implement an ESG platform. Initial data collection for Scope 1 and 2 emissions.
Q3: Scope-3 screening, engage with suppliers, conduct a gap analysis against ESRS requirements.
Q4: First internal report, prepare for external audits, define improvement measures. From the second year onwards: Optimize processes, increase automation, and elevate ambitions.
Frequently Asked Questions
When exactly does my company need to report?
Large publicly listed companies starting from the 2024 fiscal year, all large companies (>250 employees) from 2025, and capital market-oriented SMEs from 2026. The report will be part of the management report and must be audited by a certified public accountant.
What does CSRD compliance cost?
For a medium-sized company with 500 employees: 50,000-150,000 Euro in the first year (consulting, platform, personnel). In subsequent years, the cost will decrease to 30,000-80,000 Euro. An ESG platform costs 10,000-50,000 Euro per year, depending on the scope of functions.
Does the ESG report need to be audited?
Yes. The CSRD mandates an external audit with limited assurance, which will require reasonable assurance from 2028 onwards. Certified public accountants must verify the ESG data and processes.
What happens in case of non-compliance?
Sanctions will be defined at the national level. In Germany, fines, entries in the transparency register, and liability risks for management are possible. Indirectly, banks and customers may use ESG non-compliance as a criterion for exclusion.
Do we need an ESG manager?
For companies with more than 250 employees, it is recommended to have a dedicated ESG role – at least as a 50% position. This person coordinates data collection, manages the platform, serves as the contact person for the auditor, and drives improvement measures. In smaller companies, this role can be integrated into the controlling or management functions.
Source of the title image: Pexels / Lukas Blazek
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