A Prague-based private equity fund agrees heads of terms with a Polish manufacturing target. Valuation looks attractive. The seller is motivated. Then, three weeks into due diligence, the team discovers undisclosed tax proceedings, a disputed land title, and a shareholders' agreement that gives a silent minority investor veto rights over the entire deal. The transaction collapses. The fund loses six months and significant advisory fees.
Polish M&A transactions carry a distinct set of structural and regulatory risks that differ meaningfully from Czech practice. The Kodeks spółek handlowych (Commercial Companies Code, KSH) governs share transfers, board authority, and minority protections in ways that can surprise even experienced cross-border buyers. Czech Republic acquirers should identify these risks before signing a letter of intent – not after. This guide maps the most common red flags, explains the due diligence steps that expose them, and sets out the corrective actions available once a problem is found.
The guide proceeds in four steps. First, it explains the structural features of Polish target companies that generate the most frequent problems. Second, it covers the due diligence process and its timeline. Third, it addresses pricing and indemnity mechanics. Finally, it sets out the practical checklist a Czech buyer should have in hand before any binding commitment.
What structural features of Polish sp. z o.o. targets create the most risk for Czech buyers?
The spółka z ograniczoną odpowiedzialnością (private limited liability company, sp. z o.o.) is the dominant acquisition vehicle in Polish M&A. It is superficially similar to the Czech společnost s ručením omezeným (s.r.o.), but the differences are material. Under the KSH, a shareholders' agreement can grant minority investors consent rights over transactions, dividend distributions, and management appointments – none of which are visible in the National Court Register (KRS) unless the articles of association have been amended to reflect them. A silent veto held by a 10% shareholder can block a deal entirely.
Board authority is a second pressure point. Polish law distinguishes between the management board (zarząd) and the supervisory board (rada nadzorcza). The supervisory board's consent may be required for asset disposals, major contracts, or the very share transfer you are acquiring. If that consent was not obtained for historical transactions, the target may carry void or voidable contracts on its balance sheet. Identifying the supervisory board's reserved matters requires reading the full articles of association – not just the KRS extract.
Registered capital is a third issue. Polish sp. z o.o. entities can be incorporated with a minimum share capital of PLN 5,000. Undercapitalised targets frequently carry personal liability exposure for board members under insolvency law, which can migrate to an acquirer if the transaction structure is not carefully designed. We secured a reversal of a tax surcharge exceeding PLN 1.8m for a manufacturing client in the Mazowieckie region (autumn 2025) – a liability that had been obscured in the target's accounts for three years before acquisition.
- Check the full articles of association, not only the KRS summary
- Obtain and review all shareholders' agreements, including undisclosed side letters
- Map supervisory board consent requirements for historical transactions
- Verify registered capital against actual business scale
- Identify any board members with personal tax or insolvency exposure
How does due diligence in Poland differ from Czech practice – and what does it cost?
Due diligence in Poland follows a structured process, but the institutional touchpoints differ from Czech Republic practice. The KRS, maintained by the district courts, provides corporate filings. The Central Register and Information on Economic Activity (Centralna Ewidencja i Informacja o Działalności Gospodarczej, CEIDG) covers sole traders who may appear as counterparties in the target's contracts. The Land and Mortgage Register (Księga Wieczysta) is the authoritative source for real property title – and it is searchable online, which Czech buyers sometimes overlook when relying solely on seller representations.
A standard due diligence engagement for a Polish mid-market target (enterprise value EUR 5m to EUR 30m) takes four to six weeks. Legal due diligence fees from a Warsaw law firm typically range from EUR 15,000 to EUR 40,000 depending on scope. Tax due diligence adds EUR 10,000 to EUR 25,000. Czech buyers who compress this timeline to three weeks to meet a seller's deadline routinely miss the most material risks – particularly in the tax area, where the Polish National Revenue Administration (Krajowa Administracja Skarbowa, KAS) can reassess five years of VAT and corporate income tax positions.
The KAS audit risk deserves particular attention. Polish tax law allows the tax authority to reopen assessments within five years of the end of the tax year in which a return was filed. A target with aggressive transfer pricing, undisclosed related-party transactions, or VAT chain irregularities carries a contingent liability that will not appear in audited accounts. Czech buyers should insist on a standalone tax due diligence report covering at least the last three full tax years.
For cross-border structures, see our analysis of branch vs. subsidiary options for Central European groups, which addresses the structural choice that often precedes the acquisition itself.
What are the most common deal-breakers found in Polish M&A due diligence?
Three categories of finding kill more Polish M&A transactions than any other. The first is real property title defects. Polish land law has a complex history of post-war nationalisation, restitution claims, and perpetual usufruct (użytkowanie wieczyste) arrangements. A target that owns its manufacturing facility may hold it under perpetual usufruct rather than freehold title – a distinction with significant implications for financing and future disposal. Restitution claims against Warsaw properties remain active and can encumber title without appearing in the Land and Mortgage Register.
The second category is undisclosed litigation. Polish companies are not required to disclose pending proceedings in their annual accounts unless the liability is probable and estimable. A target with PLN 3m in pending commercial claims may present clean accounts. Due diligence must include direct searches of the National Court Register for pending proceedings and a review of the target's correspondence files. We obtained interim measures protecting assets worth over EUR 4m for a Czech investor's subsidiary in Lower Silesia (spring 2025) – a case that arose directly from undisclosed pre-acquisition litigation.
The third category is employment and social security exposure. Polish labour law imposes strict requirements on employment contract classification. Targets that have misclassified employees as contractors face back-contributions to the Social Insurance Institution (Zakład Ubezpieczeń Społecznych, ZUS), plus interest, for up to five years. In labour-intensive sectors – logistics, manufacturing, food processing – this exposure can exceed PLN 5m for a mid-sized target.
For buyers with existing Polish exposure or prior insolvency concerns, our guide on cross-border insolvency between Poland and the Czech Republic sets out the relevant procedural framework.
How should Czech buyers structure pricing and indemnities to protect against Polish-specific risks?
Price adjustment and indemnity mechanics in Polish M&A follow broadly recognised patterns, but the specific risks identified above require tailored provisions. A locked-box mechanism with a reference date balance sheet works well for clean targets. For targets with identified tax or litigation exposure, a completion accounts mechanism with specific indemnities is more appropriate. The indemnity period for tax matters should run for five years from completion – matching the KAS reassessment window.
Warranty and indemnity (W&I) insurance is available in the Polish market. Premiums for mid-market transactions typically range from 1% to 2% of the insured limit. Czech buyers who have used W&I insurance in domestic transactions should note that Polish policies require the underlying due diligence report to meet specific disclosure standards. A report prepared primarily for internal use may not satisfy the insurer's requirements. Engage the insurer's underwriting team no later than two weeks before signing.
Escrow arrangements are the standard backstop for identified contingencies. Polish law permits escrow accounts held with Polish or foreign banks, but the escrow agreement must be governed by Polish law if it relates to a Polish target company. The standard escrow period for tax indemnities in Polish transactions is 24 to 36 months. For real property defects, 36 months is the market norm. Agree the escrow release mechanism in the term sheet – not in the final SPA negotiation, where leverage shifts.
For structural context on how Czech groups can hold Polish assets most efficiently, see our comparison of red flags in Polish M&A for UK buyers, which addresses parallel issues from a different cross-border perspective.
Specific situations require immediate assessment. If your transaction involves a target with identified KAS exposure or a real property title question, delay forfeits the ability to negotiate adequate protection before signing. Contact info@kordeckipartners.com for a targeted review of your due diligence findings before you commit to a price.
Practical checklist: what Czech buyers should prepare before signing
The checklist below reflects the steps that consistently prevent post-completion disputes in Polish M&A transactions. It is not exhaustive, but it covers the issues that arise most frequently for Czech Republic acquirers entering the Polish market for the first time or expanding an existing platform.
- Obtain full articles of association and all shareholders' agreements, including undisclosed side letters, before signing heads of terms
- Commission standalone tax due diligence covering at least three full tax years, with specific attention to transfer pricing and VAT chain integrity
- Run Land and Mortgage Register searches for all real property held by the target, including perpetual usufruct entries and any pending restitution claims
- Search the National Court Register for pending proceedings against the target and its current and former board members
- Verify ZUS compliance for the last five years, particularly for targets in logistics, manufacturing, or any sector with high contractor headcount
Three business scenarios illustrate how these steps play out in practice. A Czech IT group acquiring a Warsaw-based software house (enterprise value EUR 8m) discovered undisclosed options granted to two employees over 15% of the share capital – found only because the due diligence team reviewed the full articles of association. A Czech manufacturing company acquiring a Silesian components supplier found a PLN 2.4m ZUS liability from contractor reclassification – negotiated into the price after due diligence. A Czech real estate investor acquiring a Kraków logistics asset found a perpetual usufruct arrangement with a 2041 expiry – restructured before completion into freehold title at a cost of PLN 800,000.
The pattern is consistent. Early, thorough due diligence either resolves the problem before signing or creates the negotiating leverage to price it correctly. Compressed timelines consistently produce post-completion surprises that cost more to resolve than the advisory fees saved.
Frequently asked questions
Q: How long does a typical Polish M&A transaction take from letter of intent to completion?
A: A mid-market Polish transaction (enterprise value EUR 5m to EUR 50m) typically takes three to five months from signed letter of intent to completion. Due diligence accounts for four to six weeks of that timeline. Regulatory filings – including any required notification to the Office of Competition and Consumer Protection (Urząd Ochrony Konkurencji i Konsumentów, UOKiK) for transactions meeting the Polish merger control thresholds – add four to six weeks. Czech buyers should build this timeline into their investment committee approvals before signing heads of terms.
Q: Is it a common misconception that Polish corporate records are fully transparent?
A: Yes. The KRS provides useful but incomplete information. Shareholders' agreements, side letters, and supervisory board reserved matters are not filed in the KRS unless they have been incorporated into the articles of association. A buyer relying solely on KRS extracts will miss the most commercially significant constraints on the target. Full document disclosure – including board minutes for at least the last three years – is the only reliable method for mapping the actual governance structure of a Polish target.
Q: What does W&I insurance cost for a Polish mid-market transaction, and is it worth it?
A: W&I insurance premiums in the Polish market typically run between 1% and 2% of the insured limit for mid-market transactions. For a EUR 10m insured limit, the premium is EUR 100,000 to EUR 200,000. Whether it is worth purchasing depends on the quality of the due diligence, the seller's financial standing, and the specific risks identified. For transactions where the seller is a founder exiting the business – and therefore unlikely to have deep pockets for indemnity claims – W&I insurance is generally a sound investment for Czech buyers.
Your transaction's specific risk profile requires individual assessment. If your team has completed due diligence and identified concerns around tax, title, or governance, acting before signing preserves every protective option. After completion, the available remedies narrow sharply and the cost of resolution rises. To discuss how Polish M&A risks apply to your specific acquisition, email info@kordeckipartners.com.
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 M&A transactions, corporate structuring, and cross-border due diligence. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. 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.