What is a double materiality assessment?

Double materiality assessment: Definition and step-by-step guide

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Double materiality reveals where sustainability risks become your next big advantage.
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April 8, 2025

Navigating the world of carbon reporting can be full of unfamiliar frameworks, terminology and regulations. Finding your way through can often get a bit complicated, and choosing the right way to track and report your emissions is often a tough choice.

Want to track how sustainability issues impact your finances? Need to know your impact on the environment and society? A double materiality assessment takes this dual approach to carbon tracking and is at the core of the Corporate Sustainability Reporting Directive (CSRD).

Implementing a double materiality assessment (DMA) is crucial for compliance, transparency, and strategic decision-making. A DMA helps organisations uncover risks and opportunities, aligning sustainability efforts with business goals. 

This guide will explain the concept, its importance and walk you through a step-by-step process for conducting a DMA.

What is a double materiality assessment (DMA)?

Definition

A Double Materiality Assessment (DMA) evaluates both how a company's actions impact the environment and society (impact materiality) and how sustainability-related risks and opportunities affect the company's financial performance (financial materiality).

A double materiality assessment evaluates two key elements:

  • Impact materiality: How a company’s activities influence the environment and society, both positively and negatively.
  • Financial materiality: How sustainability-related risks and opportunities affect a company’s financial health, performance, and long-term value.

Traditionally, businesses focused solely on financial materiality, assessing risks and opportunities directly impacting profitability. However, impact materiality is gaining prominence as regulators and stakeholders demand greater accountability for corporate sustainability practices.

The two components of double materiality

Impact materiality

Impact materiality assesses a company’s positive and negative effects on the environment, society, and communities. It extends beyond financial implications to examine how business operations, products, and supply chains contribute to or mitigate sustainability challenges.

Key considerations:

  • Climate change & carbon emissions: Evaluating direct and indirect emissions, reducing carbon footprints, and enhancing climate resilience.
  • Human rights & labour practices: Ensuring fair wages, safe working conditions, and ethical supply chains while addressing forced labour and discrimination.
  • Biodiversity & resource use: Assessing land use, water consumption, waste production, and sustainable sourcing.
  • Supply chain sustainability: Identifying environmental and social risks, from unethical labour to resource depletion.
  • Waste management & circular economy: Implementing recycling, reuse strategies, and sustainable product design.
  • Community engagement & social responsibility: Supporting local economies, education, and health initiatives to foster positive social impact.
  • Water usage & conservation: Minimising consumption, preventing pollution, and investing in sustainable water management.
  • Ethical sourcing & procurement: Ensuring suppliers meet environmental and social standards, avoiding conflict materials.
  • Diversity & inclusion: Promoting workforce diversity to enhance social responsibility and company performance.
  • Energy efficiency & renewables: Reducing reliance on non-renewables by adopting clean energy sources.

Financial materiality

Financial materiality examines how sustainability risks and opportunities shape a company’s financial health. With regulations tightening, markets shifting, and investors paying closer attention, businesses must stay ahead of the curve.

Key considerations:

  • Regulatory changes: Keeping up with environmental policies, carbon taxes, and reporting requirements.
  • Market shifts: Meeting growing demand for sustainable products to stay competitive.
  • Climate risks: Preparing for disruptions from extreme weather, resource shortages, and supply chain disruptions.
  • Investor & consumer expectations: Aligning with sustainability trends to attract funding and customer loyalty.
  • Environmental liabilities: Managing pollution, biodiversity loss, and potential legal risks.
  • Labour & workforce trends: Ensuring fair wages, good working conditions, and employee well-being to boost productivity.
  • Supply chain resilience: Strengthening operations against climate risks, geopolitical shifts, and material shortages.
  • Insurance costs: Evaluating risks from climate disasters and adjusting coverage strategies accordingly.
  • Efficiency & innovation: Cutting costs and boosting profitability through sustainability-driven innovations.

Understanding both sides of double materiality helps businesses manage risks, seize opportunities, and drive long-term success.

What is the link between the DMA and the CSRD?

The Corporate Sustainability Reporting Directive (CSRD) legally mandates that certain EU companies adopt a double-materiality approach to their sustainability reporting. They are responsible for ensuring that companies follow this framework and report accurate data on their business operations.

What is CSRD?

The CSRD is a European regulation requiring companies to disclose sustainability-related risks and impacts using a double materiality approach, ensuring greater corporate accountability.

This move aims to enhance corporate transparency, ensuring businesses provide a complete view of their sustainability risks, impacts, and strategies.

The CSRD outlines key principles for companies to follow when it comes to sustainability reporting:

  • Sustainability must be embedded into overall business strategy, not just as a side initiative.
  • Companies must engage with employees, customers, regulators, and investors to identify sustainability issues with the greatest business and stakeholder impact.
  • Reports should meet qualitative and quantitative benchmarks to assess materiality correctly.
  • Clear governance structures and processes must be in place for managing sustainability effectively.
  • Sustainability performance metrics must be verifiable, comparable, and aligned with global reporting standards.

Ignoring these requirements isn’t just a compliance risk; it can lead to financial penalties, damage to a company’s reputation, and loss of investor trust. Conversely, proactive businesses can gain a competitive edge, boost brand value, and build long-term financial resilience.

Should your company conduct a double materiality assessment?

Beyond regulatory compliance, a DMA offers strategic advantages that can strengthen your business:

  • Smarter decision-making: Identifies key risks and opportunities, improving long-term strategy.
  • Stronger reputation: Signals corporate responsibility, boosting trust with investors and customers.
  • Competitive edge: Positions your company as a sustainability leader.
  • Resilience against ESG risks: Anticipates and mitigates environmental, social, and governance (ESG) challenges.
  • Better stakeholder alignment: Ensures your strategy meets investor, consumer, and regulatory expectations.
  • Opportunities for innovation: Uncovers new possibilities for sustainable products and business models.
  • Risk reduction: Lowers exposure to legal, regulatory, and reputational risks.
  • Easier access to capital: Aligns sustainability efforts with investor and lender expectations, improving funding opportunities.
Why is double materiality important for businesses?

Beyond ticking regulatory boxes, double materiality helps businesses anticipate risks, build stakeholder trust, and find new opportunities. It's about long-term resilience and staying competitive in a world that increasingly values sustainability.

A step-by-step process for a successful double materiality assessment

To get the most out of a double materiality assessment (DMA), it's essential to follow a structured approach. This ensures that both impact materiality and financial materiality are considered. Here's a breakdown of how to carry it out.

How to conduct a Double Materiality Assessment?

A Double Materiality Assessment (DMA) involves identifying relevant sustainability topics, consulting stakeholders, assessing impact and financial materiality, integrating findings into strategy, and ensuring compliance with reporting standards.

Step 1: Understanding the context

Understanding your company's context is key before diving into the assessment itself. It’s like building a foundation for the entire process; everything else can fall apart without it.

  • What’s your business model? Understand your products, services, and operational reach. Are you a global enterprise or a local player?
  • Who are your stakeholders? Consider who will be affected by your actions: employees, customers, suppliers, and local communities, and factor in their interests.
  • What’s the sustainability landscape? Familiarise yourself with the legal regulations, industry norms, and societal expectations that impact your company’s sustainability journey.

This step will guide the rest of the process by giving you the context needed to identify the material impacts, risks, and opportunities that matter most.

Step 2: Identifying impacts, risks, and opportunities

Once you’ve got the context, it's time to figure out exactly what’s happening with your sustainability impacts, risks, and opportunities. The goal is to understand both the positives and negatives that your business activities create and how these could affect your financial performance.

To ensure a comprehensive assessment, here’s the process:

  1. Stakeholder mapping: Identify who the key stakeholders are (think employees, suppliers, customers) and what their concerns might be.
  2. Data gathering: Collect information about your operations, from supply chain impacts to product lifecycles.
  3. Engage with stakeholders: Whether through surveys, interviews, or workshops, getting insights from your stakeholders ensures that you’re considering the right factors.
  4. Literature and benchmarks: Check industry reports and benchmarks to see if any trends or risks you may have missed are emerging elsewhere.
  5. Analyse the data: With the information at hand, assess actual and potential impacts that could impact the environment, society, and your financials.

Step 3: Assessing materiality

It’s time to assess whether the identified risks and opportunities matter. This involves evaluating them based on their significance to your operations and financial performance.

Here’s how you can assess materiality:

  • Severity and likelihood: Evaluate the impact and probability of each risk and opportunity.
  • Stakeholder relevance: Consider the importance of these issues to stakeholders (e.g., will investors care about your carbon footprint?).
  • Qualitative and quantitative thresholds: Use both qualitative factors (e.g., stakeholder concerns) and quantitative metrics (e.g., financial implications and environmental impact) to define what’s material.

Assessing materiality narrows the list of potential issues to those that matter.

Step 4: Reporting and disclosure

Finally, it’s time to communicate your findings. Reporting and disclosure aren't just about ticking a box; they’re about building trust with stakeholders and showcasing your commitment to sustainability.

  • Be transparent: Disclose your process for identifying and assessing material issues. Show how you arrived at your conclusions.
  • Align with reporting requirements: If you're reporting under regulations, ensure your disclosures align with its guidelines, which require you to explain impact and financial materiality.
  • Strategic integration: Highlight how your identified issues are integrated into your business strategy. This shows that sustainability is a priority.
Key Challenges

Common challenges include resource constraints, data availability, limited stakeholder engagement, complex regulations, and integrating sustainability into existing business processes.

What is the cost of a DMA?

The cost of a Double Materiality Assessment (DMA) can vary depending on your company’s size, complexity, and the scope of the assessment. 

Key cost factors include:

  • Internal resources: Dedicated teams for data collection, analysis, and stakeholder engagement.
  • External expertise: Consultants or sustainability experts for guidance and compliance, particularly with regulations like the CSRD.
  • Data tools: Software and third-party databases are needed for data collection and analysis.
  • Stakeholder engagement: Costs for surveys, interviews, or workshops to gather insights.
  • Reporting: Resources are required to prepare reports and ensure regulatory compliance.

While the initial cost can be high, the long-term benefits often make the investment worthwhile. Ignoring DMA could result in even higher costs in the future.

Double materiality is here to stay, and companies that adopt a Double Materiality Assessment (DMA) will be better positioned for long-term success. With increasing regulatory demands and stakeholder expectations, DMA is a strategic tool for managing risks and creating value.

Assessing financial and sustainability impacts can help businesses uncover growth opportunities, improve resilience, and enhance their reputation. DMA aligns companies with investor, customer, and regulatory expectations, fostering efficiency and innovation.

Take the first step towards comprehensive double materiality assessment with Plan A's expert guidance. Our specialised platform and sustainability consultants will help you identify what truly matters for your business and stakeholders, ensuring CSRD compliance while uncovering strategic opportunities.

Contact us today to see how Plan A can transform your sustainability reporting from a compliance challenge into a competitive advantage.

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