CSRD Compliance in Financial Year 2027! Does your company meet the following criteria?
- Niels Blokzijl
- Apr 25
- 3 min read
The EU’s Corporate Sustainability Reporting Directive (CSRD) with its technical

standards (ESRS) is no longer a distant regulation on the horizon: for thousands of companies, the first CSRD-ESRS aligned report is due in 2028 for financial year 2027 Over 1,100 data points, digital XBRL tagging and limited assurance demand a level of data discipline many organisations have never applied to non financial information. This is short notice! This blog explores three make or break dimensions of CSRD-ESRS readiness in financial year 2027—Data Quality & Data Management, Innovation & AI, and Automation—and details the main pitfalls to watch for, along with pragmatic steps to stay on track.
1. Data Quality & Data Management: building a rock solid foundation
"In sustainability reporting, accuracy without traceability is an illusion."— Assurance partner at a Big4 audit firm
1.1 From double materiality to definitional rigour
The CSRD-ESRS starts with a double materiality assessment. A sloppy scoping exercise can leave you drowning in irrelevant data—or worse, missing disclosures that auditors will flag. Once scope is set, every metric needs unambiguous definitions—units, periodicity, consolidation boundary, and owners—mirrored in both your ERP systems and ESG systems.
1.2 Value chain data and the thirdparty gap
Upstream suppliers and downstream distributors often hold the keys to Scope 3 emissions, water withdrawals, or human rights metrics. Collecting this data requires contractual clauses, data sharing portals, and plausibility checks. Where primary data is unavailable, explain and version control estimation methodologies are required.
1.3 Governance & the three lines of defence
Treat sustainability data like financial data: assign data owners, stewards, custodians and coordinators, implement automated and manual controls, and retain rich audit trails. These structures are your shield when auditors come asking for evidence.
Key risks
Risk | Impact | Early warning sign |
Incomplete materiality scope | Qualified assurance opinion | Repeated scope changes late in the reporting cycle |
Disparate data definitions | Reconciliation failures | Conflicting values between ESG and Finance dashboards |
Missing audit trail | Report rework, reputational damage | Adhoc spreadsheets, no version control |
2. Innovation &AI: harnessing tech without losing control
2.1 AI & advanced analytics
Machine learning models can estimate Scope 3 emissions or predict water stress, but auditors will expect documented logic, datasets, and reproducibility. Avoid "blackbox" outputs by logging feature importance and providing human in the loop validation.
2.2 SaaS and RegTech platforms supporting CSRD-ESRS
Be aware of security certifications and portability of your data should you consider to switch service providers before your financial 2027 CSRD reporting.
2.3 CSRD-ESRS updates
Possible CSRD-ESRS updates: Have your advisors update you regularly so you can adapt your tooling before the next assurance cycle begins.
Innovation watchouts!
Over reliance on immature tools
Cyberrisk in multitenant cloud platforms
Model bias and hidden assumptions undermining credibility
3. Automation: scaling accuracy without multiplying errors
3.1 ETL, RPA & integration layers
Automating data collection and transformation is essential, but a single scripting error can propagate across hundreds of disclosures. Strong change management should keep a mirrored test environment and run automated regression suites after every update.
3.2 XBRL tagging and taxonomy updates
The CSRD-ESRS Set1 taxonomy is only the first release. Configure your tagging engine to handle taxonomy versioning, automated rule validation, and warnings for deprecated elements.
3.3 Automated controls & continuous monitoring
Replace manual spot checks with continuous online control monitoring: reconciliation bots, anomaly detection alerts and chat ops channels for exception management. Ensure separation of duties—bots should never approve their own data.
Top automation hazards
Hazard | Consequence | Mitigation |
Broken interface mapping | Mass mis tagging, filing rejection | Dual ledger validation, interface smoke tests |
Poor bot governance | “Garbage in, garbage out” | Control libraries for RPA scripts, botid specific access rights |
Performance bottlenecks | Reporting delays, missed filing deadlines | Eventdriven data lakehouse, autoscaling pipelines |
4. Five moves to start as of this quarter
Run a data quality health check on the top 50 ESRS data points.
Pilot XBRL tagging with a handful of metrics to test your stack and assurance evidence.
Set up materiality refresh workstreams with internal and external stakeholders and your way of communication with them.
Document AI powered estimations—inputs, outputs, and human review gates.
Keep on being periodically informed by your advisors about regulatory updates on CSRD-ESRS, ISSB, GRI, Stock Exchanges and local authority updates.
Conclusion
CSRD compliance is a marathon, not a sprint, but 2027’s Financial Year’s race has already begun. Companies that treat sustainability data with the same discipline as financial data—supported by smart innovation & AI and robust automation—will not only satisfy assurance auditors; they will gain strategic insight and stakeholder trust and increased EU market and EU capital market accessibility.
Need help operationalising these ideas? Let’s start the conversation.
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