Double Materiality Assessment for Irish Firms

Double materiality is the foundational concept behind the EU’s Corporate Sustainability Reporting Directive (CSRD) — and it survived the Omnibus simplification intact. The February 2026 Omnibus directive cut the number of companies that must report, but for those still in scope, and for the growing number reporting voluntarily under pressure from banks and large customers, the double materiality assessment remains the starting point. It determines what your company reports on, what data you collect, and what your assurance provider scrutinises. Getting it wrong means reporting on the wrong topics and facing audit challenges that are expensive to fix.

What Double Materiality Means

Traditional financial reporting considers one direction: how events and conditions affect the company’s financial performance. Single materiality — the approach used by frameworks like SASB — asks whether a sustainability topic could influence investor decisions.

Double materiality adds a second lens. Under CSRD, companies must also assess whether their operations have a significant impact on people and the environment, regardless of whether that impact feeds back into financial risk.

Impact Materiality

Impact materiality looks outward. It asks: does your business cause or contribute to significant positive or negative impacts on the environment, people, or society? This covers direct operational impacts, impacts through business relationships (such as supply chain labour practices), and impacts from how your products are used and disposed of. Both actual and potential impacts must be assessed — and for potential impacts, the assessment must weigh both likelihood and severity across multiple dimensions.

Financial Materiality

Financial materiality looks inward. It asks: do sustainability matters create risks or opportunities that could materially affect your company’s financial position, performance, or cash flows? This spans physical climate risks, transition risks from regulatory and market shifts, reputational exposure, and emerging opportunities in sustainable markets. The assessment methodology must be rigorous enough to satisfy your assurance provider — which is where many companies discover they need specialist support.

Where the Rules Stand After the Omnibus (July 2026)

The regulatory picture moved substantially between 2025 and 2026. Here is the position as of July 2026:

• The Omnibus directive is final. Directive (EU) 2026/470 was published in the Official Journal on 26 February 2026 and entered into force on 18 March 2026. It amends the CSRD (and the CSDDD) rather than replacing them.
• Scope is dramatically narrower. Only companies with more than 1,000 employees and net turnover above EUR 450m fall within mandatory CSRD scope, applying to financial years starting on or after 1 January 2027. Both thresholds must be met, and they also apply at group level.
• Listed SMEs are out. The planned third wave of reporting for listed SMEs is gone — they are fully exempt from mandatory CSRD reporting.
• Timing had already shifted. The 2025 “stop-the-clock” directive (Directive (EU) 2025/794) deferred the second reporting wave by two years, so the remaining in-scope companies report on FY2027, with first reports due in 2028.
• Assurance stays at limited assurance. The earlier pathway towards reasonable assurance was removed. Limited assurance is still a genuine review — your materiality assessment methodology and documentation are precisely what the assurance provider tests.
• The ESRS are being simplified — but the double materiality assessment stays. EFRAG delivered its technical advice on revised standards in late 2025, and the Commission consulted on a draft delegated act in May–June 2026 that would cut mandatory datapoints by roughly 60%. As of July 2026 the final revised ESRS have not yet been adopted; adoption is expected later in 2026, applying from FY2027 with voluntary earlier use. The drafts ease how the assessment is performed — a more top-down approach, less obligation to individually justify every impact and risk — but they do not remove the requirement to run and document one.

The practical takeaway: the reporting burden shrank, the deadlines moved — but for every company still in scope, the double materiality assessment is untouched as the gateway exercise.

What the Omnibus Means for Irish Companies

Who falls out of scope

Most Irish companies that spent 2024 and 2025 preparing for CSRD under the original thresholds (250+ employees, EUR 50m turnover) are no longer required to report. If you have fewer than 1,000 employees or turnover below EUR 450m, mandatory CSRD reporting does not apply to you. Listed SMEs on Euronext Dublin are exempt outright.

Who still must comply

• Large Irish companies and groups exceeding both thresholds — 1,000+ employees and EUR 450m+ net turnover — report on FY2027, due in 2028.
• Irish subsidiaries of large EU groups may be exempt from producing their own report where they are consolidated into a parent’s group sustainability report — but they still have to feed materiality input and data upstream, so the assessment work does not disappear, it relocates.
• Companies near the thresholds should track headcount and turnover at each balance sheet date. Crossing both lines pulls you into scope, and the assessment takes months, not weeks.

In Irish law, the stop-the-clock deferral was transposed in July 2025 by the European Union (Corporate Sustainability Reporting) Regulations 2025 (SI No. 309 of 2025), which amended Part 28 of the Companies Act 2014. Member states have 12 months from the Omnibus directive’s entry into force to transpose the substantive changes, so expect further Irish amending regulations on the same Part 28 framework.

Why out-of-scope companies are not off the hook

Falling out of mandatory scope has not stopped the questionnaires. Irish banks are embedding sustainability into credit assessment, large customers still need value-chain data for their own reports, and public and private tenders increasingly ask for materiality-based ESG disclosure. The Omnibus did add protection here: in-scope companies cannot demand more from value-chain partners with fewer than 1,000 employees than what the EU’s voluntary reporting standard covers. But that voluntary standard still asks materiality-shaped questions — which is why a proportionate, right-sized materiality exercise remains the sensible response for many Irish SMEs, rather than either full CSRD machinery or a blank page. Our ESG advisory team scopes this to what your lenders and customers actually ask for.

What a Double Materiality Assessment Actually Covers

To make this concrete, consider what the exercise looks like for a mid-sized Irish food manufacturer with EU customers. The shape is the same in any sector; the judgements are not.

The topic universe. The assessment starts from the full ESRS topic list — environmental, social, and governance topics broken into sub-topics — plus any entity-specific topics the standard list misses. Nothing gets skipped; topics can only be ruled out through the documented process, not at first glance. For the food manufacturer, that means water, biodiversity, and supply-chain labour get assessed with the same rigour as the obvious candidates like climate and packaging waste.

The impact side. Each potential impact is scored on severity — the scale of the harm, how widespread it is, and how hard it is to reverse — and, for potential rather than actual impacts, on likelihood. Water abstraction from a stressed catchment scores very differently from the same abstraction in a water-rich one. An irreversible impact (habitat loss, a serious labour rights breach in the supply chain) weighs heavier than a reversible one of similar scale. These scoring judgements are exactly what an assurance provider probes.

The financial side. Each sustainability matter is assessed for the magnitude and likelihood of its effect on revenue, costs, assets, access to finance, and cost of capital. For our manufacturer: energy price exposure, the cost trajectory of packaging regulation, climate risk to key agricultural inputs, and the commercial risk of losing a large customer that has its own reporting obligations.

The stakeholder inputs. ESRS distinguishes affected stakeholders (workers, suppliers, communities) from users of the report (investors, lenders). Structured input from both — interviews, surveys, existing grievance and customer data — must demonstrably influence the scoring, not decorate it. An assessment where every stakeholder input conveniently confirms management’s prior view is a red flag auditors know well.

The matrix and the thresholds. The scores land on two axes — impact materiality and financial materiality — and a topic clears the bar if it crosses the threshold on either axis. Where those thresholds sit is a judgement call that must be set before scoring, applied consistently, and defensible under audit. The most scrutinised part of the output is usually not what you included but what you excluded, and why.

The output. The result is not a matrix graphic for the annual report. It is a documented list of material impacts, risks, and opportunities mapped to specific ESRS disclosure requirements — which becomes your data collection plan, your gap analysis, and the scope of your sustainability statement.

Run properly, this is dozens of judgement calls, each needing a documented rationale that will survive limited assurance. That is the part generic templates cannot do for you — and it is the core of what we do in a double materiality engagement.

Why the Assessment Is More Complex Than It Appears

On paper, double materiality sounds straightforward — assess each topic from two perspectives and determine what is material. In practice, it is one of the most challenging aspects of CSRD compliance. Here is why.

The Scope Is Vast

ESRS requires you to assess the full range of topical areas, each broken down into sub-topics — and every one must be considered before it can be ruled out. The revised standards expected later in 2026 cut the number of datapoints you ultimately disclose, but they do not shrink the universe of topics you must consider and document. The sheer volume of assessment work involved is why most companies that attempt this internally find themselves either under-resourced or behind schedule within weeks.

Value Chain Complexity

You cannot assess impacts and risks without understanding where they occur across your entire value chain — from raw material extraction through to end-of-life. For companies with complex or international supply chains, mapping this comprehensively requires significant effort. The data needed to assess whether a topic is material often lives outside your organisation, with suppliers, logistics providers, or customers who may not collect it.

Stakeholder Engagement Is Not Optional

ESRS explicitly requires that your assessment incorporates the perspectives of affected stakeholders — employees, suppliers, customers, local communities, and investors. This is not a box-ticking exercise. Your assurance provider will look for evidence of genuine, structured engagement that influenced your materiality conclusions. Designing and executing a stakeholder engagement process that is both meaningful and auditable requires careful planning.

Threshold-Setting Requires Judgement

The ESRS provides guidance on how to assess materiality, but it does not prescribe rigid thresholds. Determining what constitutes “significant” impact or “material” financial risk requires professional judgement — and that judgement must be consistent, documented, and defensible under audit. Two companies in the same sector can legitimately reach different conclusions, but only if they can demonstrate the reasoning behind their thresholds. This is where experienced guidance makes a real difference if you want to make sure your thresholds hold up under scrutiny.

The Consequences of Getting It Wrong

If your materiality assessment is too narrow, you risk non-compliance — your auditor may challenge the exclusion of topics, and stakeholders or regulators may question the completeness of your report. If it is too broad, you commit to collecting, reporting, and assuring data on topics that did not warrant inclusion, wasting significant resources. Either error compounds over time, because your materiality assessment drives everything downstream: data collection systems, targets, policies, and disclosures.

The Five Mistakes That Fail Assurance

We see the same patterns repeatedly in companies that attempt materiality assessments without experienced guidance — and each one maps directly to a question your assurance provider will ask:

• Starting too late — the assessment determines the scope of everything downstream. With first reports on FY2027 due in 2028, beginning six months before your reporting deadline leaves insufficient time to collect data for material topics.
• Confusing materiality with relevance — not every sustainability topic that touches your business is material. The assessment must distinguish between what is genuinely significant and what is merely present — a judgement that requires consistent methodology.
• Treating it as a one-off — CSRD requires the assessment to be kept current through annual reassessment. Your initial assessment is a baseline, not a finished product.
• Superficial stakeholder engagement — ESRS requires genuine, structured consultation with affected stakeholders. Internal perspectives alone will not satisfy your assurance provider.
• Inadequate documentation — a sound assessment is worthless if the methodology, evidence, and rationale are not documented to the standard your auditor expects. Limited assurance under CSRD is a review of process and evidence — documentation must be built into the process from the start, not bolted on afterwards.

Each of these mistakes compounds over time, because your materiality assessment drives every downstream decision. If you are concerned about whether your approach will hold up under assurance scrutiny, talk to us early — it is far less expensive to get it right the first time than to remediate after your auditor raises questions.

How Double Materiality Connects to Other Frameworks

If your company already reports under GRI or another ESG reporting framework, you are familiar with impact materiality. CSRD’s double materiality adds the financial dimension.

If you report under TCFD or CDP, you are familiar with financial materiality for climate. CSRD extends this to all environmental and social topics.

If you have ISO 14001 certification, your environmental aspects register covers some of the same ground as impact materiality for environmental topics — but the CSRD assessment is broader in scope and more rigorous in documentation requirements.

The CSRD reporting framework builds directly on your materiality assessment, so getting this foundation right is essential.

How Clearscope Helps

A double materiality assessment is not a template exercise. It requires deep understanding of the ESRS requirements, the ability to map complex value chains, experience designing stakeholder engagement processes that satisfy audit expectations, and the professional judgement to set defensible materiality thresholds.

Most Irish companies do not have this expertise in-house — and they should not need to. This is specialist work that sits at the intersection of sustainability science, regulatory interpretation, and assurance methodology.

We guide Irish businesses through the full double materiality assessment process:

• ESRS interpretation — translating the topic universe into a structured assessment framework tailored to your sector and operations, aligned with the revised standards as they are finalised
• Value chain mapping — building a comprehensive picture of where impacts and risks arise, including upstream suppliers, downstream customers, and affected communities
• Stakeholder engagement design — planning and facilitating engagement that is both meaningful and auditable, from employee consultations to investor dialogues
• Materiality scoring and threshold-setting — applying consistent, defensible criteria grounded in ESRS methodology, with full documentation of rationale
• Documentation and audit preparation — creating the assessment record your assurance provider will review, built to the standard they expect
• Right-sizing for voluntary reporters — proportionate assessments for companies outside mandatory scope who need credible answers for banks, customers, and tenders
• Ongoing maintenance — annual reassessment as your business and regulatory environment evolve, so your materiality conclusions remain current

Companies that invest in a rigorous materiality assessment upfront avoid the costly cycle of retrofitting data collection, revising reports, and defending challenged exclusions during assurance. The assessment is the foundation — get it right, and everything that follows is more efficient.

Contact us to discuss your CSRD materiality assessment.

Frequently Asked Questions

What is double materiality under CSRD?

Double materiality requires assessing sustainability topics from two directions: your impact on people and the environment, and how sustainability issues create financial risks or opportunities. A topic must be reported if it is material from either perspective.

Is a double materiality assessment still required after the Omnibus?

Yes. The 2026 Omnibus directive narrowed who must report under CSRD, but it kept double materiality as the foundation of the framework. Every company still in scope must run and document the assessment, and the draft revised ESRS retain it as the basis for determining what to disclose.

Who needs to conduct a double materiality assessment?

All companies in scope for CSRD. Following the Omnibus directive, that means companies with more than 1,000 employees and net turnover above EUR 450m, reporting on FY2027 with first reports due in 2028. Listed SMEs are exempt. Many out-of-scope companies also run proportionate assessments to answer banks, customers, and tenders.

Is there a template for a double materiality assessment?

Generic templates exist, but they are where failed assurance reviews start. The scoring thresholds, stakeholder evidence, and exclusion rationale must be specific to your business — an auditor tests your judgements and documentation, not whether you filled in a spreadsheet. A defensible assessment is a methodology, not a form.

How long does a double materiality assessment take?

Typically 3-6 months for a mid-sized Irish company. The process involves multiple parallel workstreams — stakeholder engagement, value chain mapping, scoring, documentation — and should begin well in advance of your reporting deadline.

Can a topic be material from only one perspective?

Yes. A topic may be material from impact, financial, or both perspectives. It must be reported if it meets the threshold from either direction — which is why the threshold-setting methodology is so important to get right.

How often must the assessment be updated?

Annually. CSRD reporting is a yearly cycle, and your materiality conclusions must stay current as your business, value chain, and the regulatory environment change. The first assessment is the heavy lift; subsequent updates build on it.