CSRD reporting for UK and other non-EU businesses

The UK’s sustainability reporting landscape is shifting. The recent introduction of the UK Sustainability Reporting Standards (SRS) marks a significant change for British businesses, aligning the country more closely with international frameworks.

But for UK companies operating in Europe, or those with significant EU operations, the Corporate Sustainability Reporting Directive (CSRD) is equally relevant and increasingly urgent.

The key fact: The CSRD applies not only to EU-based companies but also to non-EU companies with significant operations in the EU, meaning that international firms must comply if they have a presence in the EU market.

For UK businesses with European subsidiaries, supply chain relationships, or customers, understanding the final version of the CSRD is no longer optional.

Why CSRD matters for UK businesses

The CSRD represents the most comprehensive sustainability reporting framework in the world. It places sustainability reporting on the same level of importance as financial reporting, introducing mandatory disclosure requirements that go far beyond traditional voluntary sustainability reporting.

The readiness gap

According to recent research from Sweep and Sustainability Magazine:

• 40% of businesses outside the EU are well prepared or ahead of sustainability reporting requirements
• 65% of EU-focused organisations report similar readiness

This gap reflects the fact that many UK companies are only now encountering mandatory reporting obligations for the first time. For businesses subject to CSRD, the clock is already ticking.

Who must comply?

CSRD applies to:

• Large companies operating in the EU with 1,000+ employees and €450 million+ turnover
• Non-EU companies generating €150 million+ net turnover in the EU with at least one EU subsidiary or branch exceeding size thresholds

If you have a significant European presence, CSRD likely applies to you.

CSRD compliance timeline: what you need to know

Compliance is being phased in from 2024 through 2029:

 

Company type	First reporting year	Publication date
Companies previously under NFRD	2024	2025
Large public interest entities (new to mandatory reporting)	2025	2026
Listed small and medium enterprises	2026	2027 (opt-out until 2028)
Non-EU companies	2028	2029

Why you can’t wait: The CSRD requires companies to report their sustainability impacts in a standardised digital format, which aims to enhance comparability and reliability of sustainability data across different organisations. Building that infrastructure takes time.

Six critical CSRD requirements

1. Double materiality assessment

What it means: Double materiality requires organisations to report on:

• The impact their businesses have on sustainability matters (impact materiality)
• The impact that sustainability matters have on their finances (financial materiality)

This is a fundamental departure from single materiality frameworks, which focus only on financial risks to the company.

What you need to do:

• Engage stakeholders across your entire value chain
• Identify material sustainability topics requiring disclosure under ESRS
• Document your assessment process for audit purposes

Most organizations conduct a double materiality assessment as a first step toward compliance with the CSRD, ensuring they understand both their sustainability impacts and financial risks associated with those impacts.

2. European Sustainability Reporting Standards (ESRS)

The framework you’ll report under:

The ESRS were officially adopted by the European Commission on 31 July 2023, and published in the Official Journal of the EU in December 2023, making them legally binding.

Structure:

• 12 standards covering sustainability matters
• Four categories: Cross-cutting, environmental, social, and governance
• Four pillars per topic: Governance, strategy, risk management, metrics and targets

Companies must disclose information following the same structure as financial reporting, embedding sustainability into core business processes and the management report.

3. Value chain reporting

The challenge: CSRD mandates that companies report sustainability information across their entire value chain, including:

• Upstream: Emissions from producing or transporting goods or materials you purchase
• Downstream: Emissions from customers using or disposing of your products

The data problem:

Research shows that 69% of businesses struggle with supplier data collection . This is the single most critical barrier for businesses worldwide, particularly for Scope 3 reporting under CSRD.

Why it’s difficult:

• No standardised data formats
• Variable supplier engagement across geographies
• Limited regulatory pressure on smaller suppliers
• Manual collection processes that don’t scale

For most businesses, Scope 3 emissions and social and environmental impacts in the value chain are the largest and most complex aspects of sustainability performance.

4. Climate transition plans and net zero alignment

What CSRD requires:

Companies must disclose their climate transition plans, aligning with the 2050 climate neutrality objective established under the European Green Deal.

Starting in 2025, the CSRD mandates that businesses have a Paris Agreement-aligned emissions reduction plan to reach net zero by 2050.

What your plan must include:

• Science-based targets for Scopes 1, 2, and 3
• Specific sustainability targets and timelines
• How you will limit global warming to 1.5°C
• Concrete actions and capital allocation
• Financial implications and business strategy alignment
• Governance structures and company board oversight

This goes beyond aspirational net emissions goals. You need to show how your business model and business strategy will deliver climate neutrality.

5. Mandatory assurance and audit requirements

A fundamental shift: For the first time, sustainability data must be independently audited to ensure its accuracy and reliability.

The standard:

• Initially: Limited assurance (similar to financial statement review)
• Over time: Reasonable assurance (same standard as financial reporting)

What this means for data quality:

According to global research, 41% of organisations report improved audit outcomes from better carbon data management . High-quality, auditable sustainability information is rapidly becoming a competitive necessity, not just a compliance requirement.

6. Penalties for non-compliance

Member states can impose penalties on companies that omit information or submit non-compliant reports.

Examples:

• Germany: Financial penalties up to €10 million or 5% of annual turnover
• France: Directors may face imprisonment for failing to provide essential data to auditors

The consequences of getting this wrong are significant.

The current state of readiness: three major challenges

Challenge 1: Spreadsheet dependency

59% of global businesses still rely on spreadsheets for carbon accounting .

The risks:

• Data accuracy issues
• Version control problems
• Not audit-ready
• Difficult to scale

As CSRD reporting requirements grow more granular, manual spreadsheet processes are increasingly difficult to maintain. A strong ESG data foundation can help ease reporting, make disclosures auditable, and prepare organizations for upcoming regulatory changes.

Challenge 2: Resource constraints

32% of businesses lack sufficient internal resources for sustainability reporting .

Why this is critical:

• Double materiality assessments require cross-functional expertise
• Value chain reporting demands supplier engagement capacity
• Mandatory assurance requires robust data governance

Automation and integrated platforms are essential to help teams accomplish more with existing resources.

Challenge 3: Time investment

65% of organisations complete annual reporting within three months , but more than one in four spend three months or longer on a single reporting cycle.

That burden will grow as:

• CSRD requirements expand
• Assurance standards tighten
• Multi-framework reporting becomes standard

How CSRD aligns with UK SRS and other frameworks

UK Sustainability Reporting Standards (SRS)

The UK Financial Reporting Council is working towards mandatory adoption of UK SRS for listed companies and large UK-registered companies.

Based on: ISSB standards IFRS S1 and S2

Common ground with CSRD:

• Disclosure of sustainability risks and climate-related financial risks
• Governance structures
• Scope 1, 2, and 3 emissions reporting
• Alignment with TCFD recommendations

Key difference: Materiality

• CSRD: Double materiality (impact + financial)
• UK SRS: Financial materiality (single materiality)

CSRD captures a broader range of sustainability impacts, including those that don’t directly affect financial performance but do affect people and the environment.

The efficient approach

For companies operating in both jurisdictions:

Build one integrated data infrastructure that satisfies both frameworks. ISSB provides a baseline that aligns with most regional requirements.

Benefits:

• Reduce duplication
• Lower costs
• Decrease complexity
• Single source of truth for sustainability data

Connection to SFDR

The Sustainable Finance Disclosure Regulation (SFDR) applies to financial market participants and asset managers.

How CSRD and SFDR connect:

• CSRD corporate disclosures provide underlying data for SFDR compliance
• Quality CSRD reporting improves access to sustainable investments
• 42% of businesses report enhanced investor confidence from better carbon data management

For companies seeking sustainable investments or working with EU-based investors, robust CSRD compliance strengthens market positioning.

Your CSRD compliance roadmap: six essential steps

Step 1: Conduct a gap analysis

What to assess:

• Current sustainability disclosures vs CSRD requirements
• Which ESRS standards apply based on double materiality
• Existing data collection capabilities
• Governance structures
• Reporting processes
• Internal controls

Output: Clear understanding of where you need to build new capabilities, improve data quality, or strengthen governance.

Step 2: Strengthen value chain data collection

With 69% of businesses struggling with supplier data, this is no longer optional.

Actions:

• Create standardised data request templates
• Build supplier portals for data submission
• Embed sustainability requirements in procurement processes
• Establish supplier engagement programmes
• Set clear expectations with business relationships

The quality of your CSRD disclosures will ultimately depend on the quality of your value chain data.

Step 3: Invest in integrated carbon management platforms

Manual processes create liability under CSRD’s assurance requirements.

What to look for:

• Automated data collection
• Multi-framework reporting (CSRD, ISSB, CDP, UK SRS)
• Double materiality assessment tools
• Audit trail and version control
• Standardised digital format output

The evidence: 64% of businesses using carbon management software report better data accuracy and improved auditability .

Integration reduces errors, saves time, and ensures you are audit-ready across all sustainability obligations.

Step 4: Build for assurance from day one

CSRD requires mandatory limited assurance, transitioning to reasonable assurance over time.

What this requires:

• Document methodologies clearly
• Maintain clear audit trails
• Establish robust data governance policies
• Design controls that satisfy assurance requirements
• Engage with auditors early

Don’t wait until your first regulated report to think about auditability.

Step 5: Align climate plans with net zero targets

Your climate transition plan must demonstrate alignment with the Paris Agreement and the EU’s 2050 climate neutrality objective.

Requirements:

• Science-based targets across all scopes
• Operational changes mapped to targets
• Capital investment plans
• Business strategy alignment
• Clear timelines and responsibilities
• Company board oversight mechanisms

Be specific. Show how you will achieve net zero emissions, not just that you intend to.

Step 6: Address resource gaps through automation

With 32% of businesses lacking sufficient internal resources, technology is critical.

Automate:

• Data collection from multiple sources
• Emissions calculations
• Report generation
• Supplier engagement workflows
• Materiality assessment processes

This frees your team to focus on strategic analysis, stakeholder engagement, and materiality assessment rather than manual data processing.

Turning compliance into competitive advantage

CSRD compliance is demanding, but it also creates opportunity.

The business case

Cost reduction: 42% of businesses achieve reduced operating costs from better carbon data management

How it happens:

• Identify energy efficiency opportunities
• Optimise resource use
• Strengthen supply chain relationships
• Reduce waste and emissions

Investor confidence: 42% report enhanced investor confidence

Why it matters:

• Access to sustainable investments
• Lower cost of capital
• Stronger positioning in procurement
• Competitive advantage in RFP processes

Companies that embed sustainability into their business model and report transparently on social and environmental issues are better positioned for the transition to a sustainable economy.

What to do now

CSRD is no longer a future concern. The sustainability regulation is here.

Immediate actions:

1. Determine if you’re in scope based on EU turnover, employees, and subsidiary structure
2. Identify your reporting timeline (2026, 2027, 2028, or 2029)
3. Conduct a gap analysis against ESRS requirements
4. Assess your current data infrastructure and identify gaps
5. Build a business case for carbon management software
6. Engage stakeholders across your value chain

Long-term priorities:

• Build robust data infrastructure
• Engage your entire value chain
• Automate wherever possible
• Treat sustainability reporting as seriously as financial reporting

Whether you’re preparing for CSRD, UK SRS, or both, the path forward is clear. The European Union and the European Parliament have made corporate sustainability a cornerstone of the sustainable economy. UK and non-EU businesses with European operations need to respond accordingly.

The companies that take action now will achieve compliance more smoothly, avoid penalties, and position sustainability as a strategic asset rather than a reporting burden.