A Warsaw-based manufacturing group receives a letter from its German parent: CSRD reporting goes live for the consolidated group in twelve months. The Polish subsidiary must supply verified ESG data by that deadline. The compliance team has no template, no baseline, and no clear owner for the project.

The Europejskie Standardy Sprawozdawczości Zrównoważonego Rozwoju (European Sustainability Reporting Standards, ESRS) set out the disclosure framework that Polish entities must follow under the Dyrektywa w sprawie sprawozdawczości przedsiębiorstw w zakresie zrównoważonego rozwoju (Corporate Sustainability Reporting Directive, CSRD). Implementation runs in four broad phases: materiality assessment, gap analysis, data architecture, and first-year reporting. The first wave of Polish large public-interest entities was required to report from the financial year 2024, with large non-listed companies following from 2025.

This guide walks through each phase in sequence. It covers the legal framework, practical timelines, costs, three business scenarios, and the most common errors that compliance teams make in the first year. Each section opens with the direct answer, then develops the detail you need to act.

What is the legal basis for ESRS reporting in Poland?

Polish entities report under ESRS because CSRD was transposed into Polish law through an amendment to the ustawa o rachunkowości (Accounting Act). The obligation applies to large public-interest entities from the 2024 financial year, large non-listed companies from 2025, and listed SMEs from 2026. Each wave must submit a sustainability statement as part of the management report – not as a separate document. The Polish Financial Supervision Authority (KNF) and the National Court Register (KRS) both play a role in verification and filing.

ESRS consists of twelve cross-cutting and topical standards. Two cross-cutting standards – ESRS 1 (general requirements) and ESRS 2 (general disclosures) – apply to all entities. The ten topical standards cover environment, social, and governance matters. Critically, ESRS 1 establishes that topical standards are subject to materiality assessment. An entity is not required to report on every topic – only those that are material to its business model or value chain.

The Polish Securities and Exchange Commission equivalent, KNF, supervises compliance for listed entities. The Polska Agencja Nadzoru Audytowego (Polish Audit Oversight Agency, PANA) oversees limited assurance of sustainability statements. From the 2025 reporting year, limited assurance by an accredited auditor is mandatory. This adds both cost and lead time to the compliance calendar.

  • Large public-interest entities: first report covers financial year 2024
  • Large non-listed companies: first report covers financial year 2025
  • Listed SMEs: first report covers financial year 2026 (opt-out available until 2028)
  • Non-listed SMEs: voluntary ESRS framework available separately

How does a Polish entity conduct a double materiality assessment?

Double materiality is the analytical core of ESRS implementation. It asks two questions simultaneously: does a sustainability topic create financial risk or opportunity for the entity (financial materiality)? And does the entity's activity cause impact on people or the environment (impact materiality)? Both dimensions must be assessed, scored, and documented before any topical standard is applied. Skipping this step – or treating it as a formality – is the most common error CSRD teams make in Poland.

The assessment process typically takes six to ten weeks for a mid-sized Polish company. It involves mapping the value chain, interviewing internal stakeholders, surveying external parties such as suppliers and community representatives, and scoring each sustainability matter against defined thresholds. The output is a materiality matrix that determines which ESRS topical standards apply and to what depth. This matrix must be disclosed in the sustainability statement itself.

We assisted a logistics operator in Mazowieckie (autumn 2025) in completing a double materiality assessment that reduced its active disclosure topics from ten to six. This narrowed the data collection programme significantly, saving the client an estimated three months of internal resource time before the reporting deadline.

One practical note: the assessment is not a one-time exercise. ESRS 1 requires entities to review materiality conclusions at least annually. Changes in business model, acquisitions, or new regulatory developments – such as the EU taxonomy alignment requirements – can shift which topics are material from year to year.

What are the key implementation steps and timelines?

Implementation runs across four phases. Each phase has a defined output, a typical duration, and a cost range that varies with company size. For a Polish non-listed large company targeting its first report for the 2025 financial year, the work should begin no later than the first quarter of 2025 to allow sufficient buffer before the filing deadline.

Phase 1 – Scoping and governance (weeks 1–4). Appoint an ESRS project owner, map reporting boundaries, and identify which group entities are in scope. Establish a steering committee that includes finance, legal, HR, and operations. Assign data owners for each potential disclosure topic. Cost at this phase is primarily internal time – typically 40 to 80 person-hours for a company with 500 employees.

Phase 2 – Double materiality assessment (weeks 5–14). As described above, this is the analytical foundation. External advisory support at this stage typically costs between PLN 30,000 and PLN 80,000 depending on value chain complexity. For entities with operations across multiple Polish regions – Mazowieckie, Silesia, Małopolska – the stakeholder engagement process takes longer.

Phase 3 – Data architecture and gap analysis (weeks 15–24). Map existing data flows against required ESRS datapoints. Identify gaps. Build or procure collection tools – most Polish entities use a combination of ERP exports and purpose-built ESG platforms. This phase often reveals that key data, such as Scope 3 emissions or supplier audit results, simply does not exist yet and must be gathered from scratch.

Phase 4 – Drafting, assurance, and filing (weeks 25–40). Draft the sustainability statement, submit for limited assurance by PANA-accredited auditor, integrate into the management report, and file with the KRS. Total external cost for a mid-sized entity typically ranges from PLN 80,000 to PLN 200,000 across all phases, excluding audit fees.

For guidance on designing internal compliance structures that support ESRS data collection, see our analysis of compliance programme design for Italy subsidiaries in Poland, which covers governance frameworks applicable across reporting regimes.

What mistakes do Polish companies make most often?

Three errors appear consistently in first-year ESRS implementations across Poland. Each one is avoidable. Each one, if left uncorrected, forfeits the entity's ability to produce a credible sustainability statement – and risks qualified assurance or regulatory scrutiny from KNF or PANA.

The first mistake is treating ESRS as an accounting exercise. ESRS data is not financial data. It requires different collection methods, different governance chains, and different quality controls. Entities that assign the project exclusively to the finance department – without HR, procurement, and operations – consistently discover data gaps in the social and governance topics that cannot be filled in the final weeks before the audit.

The second mistake is underestimating value chain scope. ESRS standards require disclosure of material impacts, risks, and opportunities across the upstream and downstream value chain – not just within the company's own operations. A Polish food manufacturer, for example, must consider agricultural suppliers. A technology company must consider hardware supply chains. Limiting scope to own operations produces a statement that will not survive assurance review.

The third mistake is late engagement with the assurance auditor. Limited assurance under PANA oversight is not a rubber-stamp process. Auditors require documentation of the materiality assessment methodology, evidence for each quantitative datapoint, and written representations from management. Engaging the auditor at least three months before the planned filing date – rather than after drafting is complete – avoids costly rework. Failure to meet the filing deadline triggers administrative liability under the Accounting Act, with penalties reaching PLN 250,000 per violation.

Foreign-owned Polish subsidiaries face an additional layer of complexity. Parent-group reporting templates often do not map cleanly to ESRS datapoint structures. We have seen German and Swiss parent groups require Polish subsidiaries to report data in formats that require significant re-mapping before they can be used in the ESRS statement. For Swiss-owned entities in particular, see our analysis of compliance programme design for Switzerland subsidiaries in Poland.

How do three common business scenarios affect the implementation path?

Implementation is not uniform. Three scenarios – a manufacturing company, an IT services firm, and a foreign investor's Polish subsidiary – each present a distinct risk profile and a different set of priority actions. Understanding which scenario applies determines where to focus resources in the first twelve weeks.

Manufacturing company (Silesia, 800 employees). Environmental topics dominate. Climate change adaptation, pollution, and resource use are likely material. Scope 1 and 2 emissions data usually exists in energy management systems, but Scope 3 data – from raw material suppliers – requires a new collection programme. The biggest risk is value chain disclosure: suppliers in the region may resist data requests, requiring contractual leverage to be built into procurement terms. Expect Phase 2 and Phase 3 to take longer than average.

IT services firm (Warsaw, 300 employees). Social and governance topics dominate. Own-workforce disclosures – pay equity, working conditions, training hours – are likely material. Environmental footprint is smaller, but data centre energy use may be relevant if the company operates or leases server infrastructure. The governance topics under ESRS G1 (business conduct, anti-corruption, whistleblower compliance) will require coordination with the legal function. AML compliance policies may already provide a partial data source for governance disclosures.

Foreign investor's Polish subsidiary (Małopolska, 150 employees). This entity may fall within scope as part of a consolidated group even if it would not qualify independently. The parent's ESRS statement will reference Polish operations. The subsidiary must supply data on schedule. The key risk is misalignment between group templates and Polish regulatory requirements. Early coordination between the Polish compliance lawyer Warsaw-side and the group sustainability team prevents duplication and gaps. ESG reporting obligations at the subsidiary level should be clarified before Phase 1 begins.

We secured agreement from a German parent group to accept a modified data-reporting format for its Polish subsidiary in Lower Silesia (spring 2026), avoiding a full re-implementation of the group's ESG platform and saving the client approximately four months of integration work.

For entities managing cross-border restructuring alongside ESRS implementation, the interaction between sustainability reporting timelines and financial restructuring is addressed in our guide on preventive restructuring in Poland.

Specific situations carry irreversible consequences. An entity that files a sustainability statement without completing a documented materiality assessment faces not only regulatory exposure but also reputational risk that precludes corrective action after the fact. Personal liability of management board members under the Accounting Act applies where the statement is materially misleading.

To receive an expert assessment of your ESRS implementation timeline and identify the highest-priority gaps, contact info@kordeckipartners.com.

What to prepare: ESRS implementation checklist

  • Board resolution appointing ESRS project owner and steering committee
  • Completed double materiality matrix with documented scoring methodology
  • Data owner register mapping each ESRS datapoint to an internal function
  • Gap analysis report identifying missing data sources and collection timelines
  • Signed engagement letter with PANA-accredited assurance auditor

Frequently asked questions

Q: How long does ESRS implementation realistically take for a first-time Polish reporting entity?

A: For a large non-listed Polish company with no prior sustainability reporting, end-to-end implementation – from scoping to filed statement – typically takes nine to twelve months. The double materiality assessment alone requires six to ten weeks. Entities that attempt to compress the timeline below six months consistently encounter data quality problems that delay assurance. Starting in the first quarter of the reporting year is the minimum viable timeline; starting in the prior year is strongly preferable.

Q: Does every ESRS topical standard apply to every Polish company in scope?

A: No. This is a common misconception. ESRS 1 establishes that topical standards – covering climate, biodiversity, water, workforce, affected communities, and governance topics – apply only where the entity's materiality assessment concludes they are material. A company that determines a topic is not material must explain that conclusion in its statement, but it is not required to collect or disclose data for that topic. This materiality gateway is one of the most important cost-management tools in the implementation process.

Q: What does limited assurance by a PANA-accredited auditor cost in Poland?

A: Assurance fees vary with entity size, data complexity, and the number of material topics. For a mid-sized Polish company reporting on six to eight material topics, assurance fees typically range from PLN 40,000 to PLN 120,000 for the first year. Fees tend to decrease in subsequent years as documentation processes mature. Engaging the auditor early – before drafting begins – reduces the risk of scope creep and additional billing for rework.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to ESG compliance, CSRD implementation, and sustainability reporting. We work with Polish entrepreneurs, foreign investors, and in-house legal teams navigating ESRS obligations for the first time. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.