How to Conduct a Double Materiality Assessment Step by Step: CSRD Practical Guide for Companies
Learn how to perform a double materiality assessment under CSRD with a practical step-by-step method, scoring matrix, stakeholder mapping, and reporting examples.
How to Conduct a Double Materiality Assessment Step by Step: A Practical CSRD Guide for Companies
Why Companies Need a Structured Materiality Process:
Many businesses understand the concept of double materiality but struggle when they try to apply it. The main challenge is not defining the theory. The challenge is answering:
Where do we start, what do we measure, and how do we decide what is material enough to report? Under the Corporate Sustainability Reporting Directive, companies must show that materiality is based on a clear process, not guesswork.
A strong materiality assessment becomes the foundation for:
• sustainability reporting
• ESG strategy
• risk management
• board decision-making
• investor communication
A weak assessment creates reporting gaps and strategic blind spots.
Step 1: Build Your Sustainability Topic Universe
Before scoring anything, companies need a complete list of sustainability topics. This is called the topic universe. The goal is to identify all issues that could matter before narrowing them down.
Main Topic Categories Under ESRS
Use the structure of European Sustainability Reporting Standards:
Environmental Topics
• climate change
• energy use
• pollution
• water
• biodiversity
• circular economy
Social Topics
• workforce health and safety
• diversity and inclusion
• human rights
• value chain labor conditions
• consumer safety
Governance Topics
• ethics
• anti-corruption
• supplier governance
• internal controls
Practical Example: Food Company
A food manufacturer may list:
• packaging waste
• energy consumption
• water dependency
• supplier labor practices
• food safety
• transport emissions
At this stage, do not remove topics too early. Broad identification first.
Step 2: Map the Entire Value Chain
A major CSRD difference is that assessment cannot stop at direct operations.
Companies must assess:
Upstream
Everything before products are made.
Includes:
• raw materials
• suppliers
• logistics
• outsourced production
Downstream
Everything after products leave the company.
Includes:
• distribution
• product use
• disposal
• recycling
Example: Furniture Business
Direct operations:
• factory electricity
• employee safety
Upstream:
• wood sourcing
• forest certification
• supplier transport
Downstream:
• product durability
• recyclability
• disposal impact
Many important impacts appear outside the factory itself.
Step 3: Identify Stakeholders Properly
A materiality assessment becomes weak if stakeholder views are missing. Stakeholders help reveal issues management may overlook.
Internal Stakeholders
• leadership
• employees
• sustainability team
• procurement
• finance
External Stakeholders
• customers
• suppliers
• investors
• communities
• regulators
• NGOs
Practical Stakeholder Mapping Method
Create three levels:
High Influence / High Impact
Must always be included
Medium Influence
Should be consulted
Low Influence
Monitor when relevant
Example: Packaging Company
High influence stakeholders:
• retail customers
• packaging suppliers
• waste regulators
Medium influence:
• local community
• logistics providers
Step 4: Collect Data from Multiple Sources
Good materiality assessments use several data sources. Do not rely only on interviews.
Recommended Data Sources
• internal policies
• incident records
• supplier audits
• customer complaints
• energy data
• financial reports
• regulatory trends
• industry benchmarks
Example
If many customer complaints mention packaging waste, this may indicate growing material relevance. If energy cost volatility is rising, financial materiality increases.
Step 5: Separate the Two Materiality Dimensions Clearly
This is where many companies fail. They mix impact and financial dimensions too early. Keep them separate first.
Impact Materiality Questions
Ask:
What do we affect?
Examples:
• emissions
• labor conditions
• water use
• waste generation
Financial Materiality Questions
Ask:
What affects us financially?
Examples:
• regulation
• carbon cost
• supply shortages
• insurance changes
Example: Water
Impact Side
Company consumes large water volumes.
Financial Side
Water prices may rise.
Same topic, two separate assessments.
Step 6: Apply a Scoring Method
A professional materiality assessment uses scoring. Without scoring, decisions become subjective.
Recommended 1–5 Scoring Scale
Impact Materiality Score
Evaluate:
Scale
How serious?
Scope
How many affected?
Irreversibility
Can damage be reversed?
Financial Materiality Score
Evaluate:
Probability
How likely?
Magnitude
How large financial effect?
Example Scoring Table
Topic Impact Score Financial Score
Climate emissions 5 5
Packaging waste 4 4
Office paper use 1 1
Supplier labor rights 5 3
Simple Rule
High score in either dimension can make topic material. Not every topic needs high scores in both.
Step 7: Build a Double Materiality Matrix
A matrix visualizes priorities.
Matrix Structure
Vertical Axis
Impact materiality
Horizontal Axis
Financial materiality
Four Zones
High-High
Immediate reporting priority
High Impact / Lower Finance
Still material under CSRD
Low Impact / High Finance
Financially strategic
Low-Low
Monitor only
Real Example
High-High
Climate emissions
High Impact / Medium Finance
Human rights in supply chain
Medium Impact / High Finance
Energy cost volatility
Step 8: Validate with Management
Before finalizing:
Management must challenge results.
Questions:
• Are critical risks missing?
• Are future regulations considered?
• Are dependencies visible?
Step 9: Document Why Topics Were Included or Excluded
This is essential for audit readiness. Auditors increasingly ask:
Why was topic X excluded?
A company must explain the logic.
Good Documentation Includes
• scoring reason
• stakeholder input
• evidence source
• final decision
Step 10: Link Material Topics to ESRS Disclosure Requirements
Once topics are material, they must connect to reporting standards.
Example
If climate is material:
Relevant disclosures include:
• emissions
• transition plan
• climate risk
If workforce is material:
Relevant disclosures include:
• health and safety
• diversity
• worker rights
Real SME Example: Bakery Business
A medium-sized bakery performs assessment.
Identified Topics
• energy use
• wheat price volatility
• packaging waste
• employee shift safety
Matrix Result
High Priority
Energy
Medium Priority
Packaging
Medium Priority
Employee safety
Why?
Energy affects:
• emissions
• costs
So it becomes material in both dimensions.
Common Consultant Mistakes in Materiality Assessments
Mistake 1: Too Many Topics
Too many material topics weaken focus.
Mistake 2: No Future Perspective
Materiality must include future risk.
Mistake 3: No Supply Chain Evidence
Supply chain is often underestimated.
Consultant-Level Best Practice
Always ask:
If this issue becomes public tomorrow, would leadership care?
If yes, materiality may already exist.
Strong Materiality Is Strategic Intelligence
A strong assessment helps companies answer:
• where future pressure comes from
• where innovation should focus
• where investors may ask questions
• where regulation may create disruption
Why Materiality Should Be Updated Every Year
Materiality changes.
Because:
• regulations change
• market expectations change
• supply chains change
• climate risks increase
Annual review is now best practice.
Final Expert Recommendation
Start with realistic depth. Do not overcomplicate first year. Strong first materiality assessment = clear logic + evidence + strategic relevance. Perfection is not required immediately. Credibility is.