A German holding company wants to absorb its Polish operating subsidiary. The two entities have operated in parallel for six years. Now the group wants a single legal vehicle, a single set of accounts, and a single regulatory footprint. The cross-border merger looks like the obvious answer – until the legal team opens the file and counts the steps.
A cross-border merger under the EU Mobility Directive (Directive 2019/2121/EU, as implemented in Poland through amendments to the Kodeks spółek handlowych (Commercial Companies Code, KSH)) allows capital companies from different EU member states to merge into one legal entity. Polish law requires the merger plan to be registered with the National Court Register (KRS) at least one month before the general meeting vote. The entire procedure – from drafting the merger plan to obtaining the pre-merger certificate – typically takes between four and nine months, depending on complexity and the jurisdictions involved.
This guide walks through the procedure step by step: the pre-merger phase, the approval and employee-protection requirements, the registration mechanics in Poland, and the post-merger compliance work. Three business scenarios illustrate how the timeline and cost profile shift depending on the transaction structure. Common mistakes and a practical checklist appear at the end.
What does the EU Mobility Directive change for Polish mergers?
The Directive introduced a harmonised framework across the EU. Before it, cross-border mergers relied on an older, thinner directive that left member states wide discretion. Poland transposed the new rules through amendments to the KSH that came into force in 2023. The result is a mandatory, multi-step procedure with hard deadlines and new employee-protection obligations – a significant upgrade in both certainty and complexity.
Three structural changes matter most for M&A Poland transactions. First, the competent authority in the departing state must issue a pre-merger certificate confirming that all pre-merger formalities are complete. In Poland, that authority is the District Court (Sąd Rejonowy) supervising the KRS. The certificate must be issued within three months of the court receiving the application. Second, the Directive introduced an anti-abuse clause: national courts may refuse to issue the certificate if the merger is an artificial arrangement aimed at circumventing employee rights or tax obligations. Third, employee co-determination rules now follow the company to its new home state for at least four years if a threshold of affected employees is met.
The Polish Financial Supervision Authority (KNF) is relevant where the merging entity holds a financial licence. Regulated entities – banks, payment institutions, investment firms – must notify or obtain prior approval from the KNF before the merger plan is registered. That approval process runs in parallel but can add two to three months. Foreign investors should map all licences held by the Polish entity before drafting the timetable.
The Office of Competition and Consumer Protection (UOKiK) may also be engaged. If the combined turnover of the merging entities exceeds the Polish merger-control thresholds, a UOKiK filing is mandatory before completion. EU-level thresholds trigger a European Commission filing instead. Either way, merger-control clearance must be factored into the critical path. A cross-border transaction that skips this step risks fines and, in theory, unwinding of the completed merger.
How does the step-by-step procedure work in Poland?
The KSH procedure has six identifiable phases. Each has its own documentation requirements, deadlines, and potential blockages. Missing a step – or completing steps out of sequence – forces the parties to restart from the point of failure. That is the single most common source of delay in cross-border merger work.
Phase one is drafting the merger plan. The plan must cover the share-exchange ratio, the articles of association of the surviving entity, and the rights offered to minority shareholders and employees. Polish law requires the plan to be published in the Monitor Sądowy i Gospodarczy (Court and Commercial Gazette) or deposited on the company's website at least one month before the shareholder vote. The one-month minimum is a hard floor. Starting drafting without a complete due diligence Poland review of both entities is a recurring mistake – gaps in the target's corporate record at the KRS surface only later and delay the court filing.
Phase two covers expert review and employee consultation. An independent expert appointed by the court examines the share-exchange ratio. The expert has one month to report. Simultaneously, the management board must inform and consult employee representatives. Where special negotiation procedures apply – because the surviving entity will be subject to co-determination rules – the negotiation period can last up to six months, with a possible three-month extension. That is the single longest variable in the entire timetable.
Phase three is shareholder approval. The general meeting of each merging entity must approve the plan by a majority of at least two-thirds of votes cast. For a Polish spółka z ograniczoną odpowiedzialnością (private limited company, sp. z o.o.), the vote requires a notarial record. The notary fee for recording a shareholder resolution in a large transaction can reach PLN 10,000.
Phase four is the application to the competent court for the pre-merger certificate. The District Court supervising the KRS has three months to issue or refuse the certificate. Phase five is the cross-border registration in the destination state. Phase six is the deletion of the absorbed entity from the KRS and the publication of the completion notice.
We secured completion of a cross-border merger between a Dutch holding and its Polish manufacturing subsidiary for a client in the Mazowieckie region (autumn 2025), reducing the group's legal-entity count from four to two and cutting annual compliance costs by over EUR 80,000.
For a tailored strategy on structuring your cross-border merger, reach out to info@kordeckipartners.com.
What are the employee protection requirements that can block completion?
Employee protection is the most underestimated part of the Mobility Directive framework. The new rules apply in two layers. The first layer covers information and consultation: the management board must provide written information to employee representatives at least six weeks before the shareholder vote. The information must include the merger plan, a management report explaining the legal and economic rationale, and a statement on the implications for employment. Failure to provide timely information allows employee representatives to challenge the pre-merger certificate application.
The second layer covers co-determination – the right of employees to sit on the supervisory or administrative board of the surviving entity. The Directive triggers special negotiations if any of the merging companies had employee board representation, or if the surviving entity will employ more than a specified threshold. In Poland, that threshold under the KSH implementing provisions is one-third of the total workforce across the merging entities. If the threshold is met, a special negotiating body (SNB) must be established. The SNB has six months to reach an agreement on co-determination arrangements. The six-month period can be extended by a further three months by joint decision. Only after the SNB process concludes – or fails, triggering standard rules – can the pre-merger certificate application proceed.
Three practical points follow. First, map the workforce composition before drafting the timetable. If co-determination is likely, add nine months to the base schedule. Second, check whether the destination state has more demanding co-determination rules than Poland. Germany, for instance, requires employee board representation at a lower headcount threshold than Polish law. The merger cannot reduce existing employee rights. Third, document every step of the consultation process. Courts have refused pre-merger certificates where the documentation trail was incomplete, even when the substantive consultation had taken place.
Where the surviving entity will be a German GmbH or AG, German co-determination law applies from the date of registration. Foreign investors using a merger to consolidate Polish operations into a German parent should model the long-term governance implications before committing to the structure. The alternative – a cross-border division or conversion under the same Directive – may produce a cleaner outcome. See our analysis of branch vs subsidiary structures for groups entering Poland for a comparison of vehicle options.
What are the three business scenarios and how do costs compare?
Cost and timeline vary significantly across transaction types. Three scenarios illustrate the range.
Scenario A – Manufacturing group consolidation. A Polish sp. z o.o. manufacturing subsidiary merges into its Czech parent. No regulated licences. Workforce of 180, with no existing co-determination. The SNB threshold is not met. Timeline: approximately five months from plan drafting to KRS deletion. Legal fees in Poland: PLN 80,000 – PLN 120,000. Court fees for the KRS proceedings: approximately PLN 5,000. Notarial fees: PLN 8,000 – PLN 12,000. The main variable is the speed of the Czech court in issuing its equivalent of the pre-merger certificate.
Scenario B – IT services reverse merger. A Polish holding company absorbs two smaller EU subsidiaries, one in Estonia, one in the Netherlands. The Polish entity is the surviving entity and will be registered at the KRS. No regulated licences, but the Estonian entity has a data-processing contract with a public authority requiring consent to assignment. Timeline: six to eight months. Legal fees across three jurisdictions: EUR 60,000 – EUR 90,000. The consent-to-assignment work runs on a parallel track but cannot be ignored – the public-authority contract lapses on merger if consent is not obtained in advance.
Scenario C – Foreign investor entry via merger. A German investor acquires a Polish target and immediately merges it into a newly established German holding. The Polish entity has 420 employees, triggering the SNB threshold. Timeline: twelve to fifteen months. Legal fees in Poland alone: PLN 150,000 – PLN 200,000. UOKiK merger-control filing adds PLN 15,000 in state fees. The SNB negotiation period dominates the timetable. For context on initial screening obligations that arise before this stage, see our guide on foreign investment screening in Poland and UOKiK powers.
Across all three scenarios, the biggest avoidable cost is restarting a phase because of a documentation gap. A thorough due diligence Poland review at the outset – covering the KRS record, the cap table, pending litigation, and all third-party consents – costs less than one month of delay.
Our team obtained a pre-merger certificate within the statutory three-month window for an IT services client merging its Polish subsidiary into a Dutch parent in the Pomerania region (spring 2026), despite a last-minute KRS correction request that required an emergency supplemental filing.
To discuss how the merger procedure applies to your group structure, email info@kordeckipartners.com.
What are the most common mistakes – and how do you avoid them?
Cross-border merger work fails in predictable ways. The mistakes cluster around four areas: timetable planning, documentation, third-party consents, and post-merger compliance. Each is avoidable with the right preparation.
Timetable errors are the most frequent. Practitioners underestimate the employee consultation phase and the court's processing time for the pre-merger certificate. The three-month statutory window for the court is a maximum, not a guarantee. In practice, courts with high KRS caseloads issue certificates closer to the deadline. Build in a two-week buffer after the statutory deadline before scheduling any downstream events in the destination state.
Documentation gaps at the KRS are the second most common problem. The KRS filing for the merger plan must include certified copies of the articles of association of all merging entities, the expert report, the management report, and – where applicable – evidence of employee consultation. Missing or uncertified documents trigger a correction notice from the court. Each correction round adds two to four weeks.
Third-party consents are frequently overlooked. Many commercial contracts contain change-of-control or anti-assignment clauses that are triggered by a merger. Key contracts – financing agreements, real-estate leases, long-term supply contracts, software licences – must be reviewed before the merger plan is filed. A lender's consent, for instance, may take eight weeks to obtain. Starting that process after the shareholder vote is too late.
Post-merger compliance is the phase most often under-resourced. After the KRS deletion of the absorbed entity, the surviving company must update its tax registrations, VAT number, bank mandates, and employment records. In Poland, the tax office must be notified within seven days of the KRS deletion. Missing that deadline triggers a penalty. The surviving entity also inherits all tax liabilities of the absorbed entity – including any open tax audits. A pre-merger tax review is not optional; it is the only way to price that risk accurately.
For transactions involving technology assets or AI systems, note that the Directive does not address IP transfer mechanics. A separate IP due diligence workstream is needed. Our overview of AI Act high-risk classification for affected sectors is relevant where the Polish entity operates AI systems that will transfer to the surviving entity in another jurisdiction.
What to prepare before filing the merger plan:
- Certified extract from the KRS for each merging entity (not older than three months)
- Up-to-date articles of association of all merging entities, with all amendments
- Complete register of third-party contracts with change-of-control clauses
- Workforce headcount analysis to determine whether the SNB threshold is met
- Confirmation of merger-control filing obligations under Polish and EU thresholds
Frequently asked questions
Q: How long does a cross-border merger in Poland actually take from start to finish?
A: The minimum realistic timeline – assuming no co-determination negotiations and no regulatory approvals – is four to five months. Transactions involving the SNB process should budget nine to fifteen months. The pre-merger certificate alone takes up to three months from the court application. Adding one to two months for plan drafting and expert review at the front end, and one month for post-merger KRS and tax filings at the back end, gives the realistic range. Parties who set a fixed completion date without modelling the employee consultation phase consistently miss it.
Q: Does the surviving entity inherit the tax liabilities of the absorbed Polish company?
A: Yes. Under Polish tax law, the surviving entity becomes the universal successor of the absorbed entity, which means it inherits all tax rights and obligations. This includes open tax audits, VAT refund claims, and any undisclosed transfer-pricing adjustments. The successor also inherits the absorbed entity's tax loss carryforwards, subject to conditions. A pre-merger tax due diligence review is the only way to quantify the inherited exposure. Buyers who skip this step sometimes discover significant tax liabilities only after the KRS deletion, when the absorbed entity no longer exists as a separate legal person and cannot be the subject of a standalone claim.
Q: Can a Polish sp. z o.o. be the surviving entity in a cross-border merger?
A: Yes. The Mobility Directive and the KSH implementing provisions allow a Polish sp. z o.o. to be either the absorbed or the surviving entity. Where the Polish entity is the surviving entity, the merger is registered at the KRS, and the absorbed foreign entity is deleted from its home-state register. The surviving Polish entity must update its articles of association to reflect any changes agreed in the merger plan. The KRS registration of the surviving entity's new articles requires a notarial deed. Minimum share capital for a sp. z o.o. is PLN 5,000, but the surviving entity must meet any higher capital requirements that applied to the absorbed entity under its home-state law.
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 cross-border M&A, corporate restructuring, and company set up Poland transactions. We work with Polish entrepreneurs, foreign investors, and in-house legal teams on transactions from initial due diligence through KRS registration and post-merger integration. To discuss your situation, contact info@kordeckipartners.com.
Dr Kordecki leads the firm's corporate and M&A practice. Before founding KORDECKI & Partners, he spent nine years at one of Poland's leading commercial law firms, advising on transactions from EUR 5m to EUR 200m. He is a member of the ICC Poland Arbitration Committee and has authored over 60 publications.
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.