A German holding company decides to absorb its Polish operating subsidiary. The transaction looks clean on paper: two entities, one corporate group, a single business rationale. Then the advisers open the file and find cross-border merger rules, employee co-determination thresholds, a two-month pre-merger scrutiny window, and a National Court Register (KRS) filing that must be coordinated across two jurisdictions simultaneously. The opportunity to simplify the group structure sits there – but the procedural clock is already ticking.
A cross-border merger under the EU Mobility Directive allows companies from different EU member states to combine into a single legal entity through an absorption or new-company structure. Polish law implements the Directive through amendments to the Kodeks spółek handlowych (Commercial Companies Code, KSH), which set a 30-day window for the KRS to issue a pre-merger certificate. Failure to coordinate the timeline across all participating jurisdictions can void the transaction or trigger personal liability for board members.
This guide walks through the procedure step by step: draft plan, employee consultation, regulatory scrutiny, KRS filing, and post-merger registration. It also covers three business scenarios, common mistakes, and a practical checklist. The goal is to give corporate decision-makers a clear map before they commit to the process.
What does the EU Mobility Directive actually require?
The EU Mobility Directive – formally Directive (EU) 2019/2121 – overhauled the cross-border merger framework that had existed since 2005. Polish law transposed it through the Commercial Companies Code. The core requirement is a detailed merger plan, published at least one month before the shareholder meeting that approves it. That plan must cover the conversion ratio, employee rights, and the proposed articles of association of the surviving entity.
Three institutions play a central role in the Polish leg of any cross-border merger. The National Court Register (KRS) issues the pre-merger certificate confirming that all Polish formalities have been satisfied. The Polish Financial Supervision Authority (KNF) must be notified where the merging entity holds a regulated licence. The Social Insurance Institution (ZUS) must receive updated employer registration data within 7 days of the merger taking legal effect.
The Directive introduced two important additions. First, a mandatory employee-participation review: if the Polish entity has more than 50 employees, the surviving company must offer a co-determination model at least equivalent to the one currently in place. Second, an anti-abuse scrutiny: the KRS may refer the transaction to a court for a detailed review if the merger appears designed primarily to circumvent employee rights or creditor protections. That review can add up to three months to the timeline.
- Merger plan filed and published – at least one month before shareholder vote
- Independent expert report on the conversion ratio – mandatory unless all shareholders waive it
- Pre-merger certificate from the KRS – issued within 30 days of a complete application
- Anti-abuse scrutiny – up to 3 additional months if triggered
- Post-merger registration in the destination jurisdiction – closes the transaction
One point that surprises many clients: the Directive does not harmonise tax treatment. Polish corporate income tax rules treat a cross-border merger as a taxable event unless specific restructuring-relief conditions are met. Getting the tax analysis wrong at the planning stage forfeits relief that cannot be reclaimed after the transaction closes.
How does the step-by-step procedure work in Poland?
The Polish procedure begins with the merger plan – a formal document signed by the boards of all participating companies. Under the Commercial Companies Code, it must include the conversion ratio, any cash payment to shareholders (capped at 10% of the nominal value of shares issued), the articles of the surviving entity, and a timetable for employee consultation. The plan is submitted to the KRS for publication at least one month before the shareholder meeting.
We secured a smooth pre-merger certificate for a manufacturing client in the Mazowieckie region (autumn 2025), where the KRS raised initial questions about the employee-participation model. Early preparation of the co-determination analysis – before the formal filing – reduced the response time to under two weeks and kept the overall transaction on schedule.
After publication, two parallel tracks run simultaneously. The board must consult employee representatives under Polish labour law; that consultation has no fixed statutory deadline but in practice takes four to six weeks. At the same time, creditors have one month from publication to request security for their claims. Both tracks must close before the shareholder meeting can validly approve the plan.
The shareholder meeting requires a majority of three-quarters of votes cast, unless the articles of association set a higher threshold. For a spółka z ograniczoną odpowiedzialnością (private limited company, sp. z o.o.) being absorbed, that means a qualified majority of the quota holders. Once approved, the board applies to the KRS for the pre-merger certificate. The KRS has 30 days to issue it or refer the matter for anti-abuse scrutiny.
The certificate travels to the destination jurisdiction's registry, which completes the final registration. From that moment, the Polish entity ceases to exist. All assets, liabilities, and contracts transfer by operation of law – no individual assignment is needed. The entire process, from plan signature to final registration, typically takes four to six months in an uncomplicated transaction.
What are the three most common business scenarios?
Understanding the procedure in the abstract is useful. Seeing it applied to recognisable fact patterns is more useful still. Three scenarios cover the majority of cross-border merger instructions we see in practice.
Manufacturing group simplification. A German parent absorbs a Polish sp. z o.o. that has operated as its production subsidiary for ten years. The Polish entity employs 120 people, triggering the employee-participation review. The key planning question is whether the surviving German entity's co-determination model is at least equivalent to the Polish works-council rights currently in place. If not, the Directive requires negotiation of a participation agreement before the KRS will issue the certificate. Timeline: five to seven months. The M&A Poland due diligence phase should map employment structures before the merger plan is drafted.
IT company consolidation. A Warsaw-based technology company merges by absorption into its Dutch parent as part of a group-wide restructuring. The Polish entity has 30 employees, so the employee-participation threshold is not triggered. The main risk is intellectual property: software licences, trademark registrations, and data-processing agreements must be reviewed to confirm they transfer automatically or require counterparty consent. A due diligence Poland review focused on IP and data protection reduces post-merger surprises. Timeline: three to four months.
Foreign investor entry via reverse merger. A French investor uses a newly incorporated Polish sp. z o.o. – set up company Poland style – as the acquirer in a reverse merger, absorbing the French operating entity. This structure can achieve a Polish holding platform without a share purchase. The KRS filing must be coordinated with the French commercial registry. Advisers should review the branch vs subsidiary question early; the guide at branch vs subsidiary in Poland for France groups covers that comparison in detail. Timeline: five to six months.
What mistakes most often derail a cross-border merger?
Four mistakes account for the majority of delays and failed transactions. Each is avoidable with proper preparation.
Underestimating the employee-participation track. Boards often treat the employee consultation as a formality. It is not. If the surviving entity's co-determination model is weaker than the Polish one, the KRS will not issue the pre-merger certificate until a participation agreement is negotiated. That negotiation can take months and, if it fails, the transaction stalls entirely. Personal liability of directors for transaction costs incurred by shareholders is a real risk in that scenario.
We obtained a pre-merger certificate for a logistics client in Lower Silesia (spring 2026) after a first application was rejected because the employee-participation analysis had been prepared by the destination jurisdiction's counsel without reference to Polish works-council law. A revised analysis, prepared jointly with Polish employment specialists, resolved the issue within three weeks.
Missing the creditor-security window. Creditors have one month after publication of the merger plan to request security. Boards sometimes proceed to the shareholder meeting before that window closes, assuming no creditor will object. If a creditor does object after the meeting, the transaction must be unwound or delayed – a consequence that forfeits the tax-relief window and may trigger penalty interest.
Ignoring regulated licences. Where the Polish entity holds a licence – financial services, gambling, pharmaceuticals – the KNF or relevant regulator must be notified before the merger takes effect. Some licences do not transfer automatically; they lapse on dissolution of the licence-holder. Missing this point precludes the surviving entity from operating in the licensed activity from day one.
Treating KRS timelines as fixed. The 30-day KRS window is a maximum, not a guarantee. Incomplete applications restart the clock. Every document must be submitted in the correct form, with certified translations where required, and with the correct court fee paid. A checklist review before filing saves weeks. For compliance programme design in the post-merger entity, the guide on whistleblower channel design and technical requirements is relevant where the surviving entity will cross the employee threshold that triggers mandatory reporting obligations.
To receive an expert assessment of your cross-border merger structure, contact info@kordeckipartners.com.
What to prepare: a practical checklist
The following items should be ready before the merger plan is signed. Missing any one of them typically causes a delay of two to four weeks at the KRS stage.
- Corporate documents of all participating entities – articles of association, shareholder register, board resolutions authorising the merger
- Employee headcount analysis – confirms whether the 50-employee threshold is crossed and which co-determination model applies
- Creditor schedule – identifies secured creditors who may request additional security within the one-month window
- Licence and permit inventory – maps which authorisations lapse on dissolution and which transfer automatically
- Tax restructuring-relief analysis – confirms that Polish corporate income tax relief conditions are satisfied before the plan is published
For investors choosing between corporate forms at the outset, the decision matrix at sp. z o.o. vs SA for Ukraine investors provides a useful framework that applies equally to other non-EU investors structuring a Polish platform. The form of the Polish entity affects both the majority threshold at the shareholder meeting and the post-merger KRS registration procedure.
A realistic cost estimate for the Polish leg of a straightforward cross-border merger – legal fees, court fees, notarial costs, and certified translations – falls in the range of EUR 15,000 to EUR 40,000, depending on complexity and the number of regulated assets involved. The destination-jurisdiction leg is priced separately.
For a tailored strategy on your cross-border merger timeline and cost structure, reach out to info@kordeckipartners.com.
Frequently asked questions
Q: How long does a cross-border merger involving a Polish entity typically take from start to finish?
A: In an uncomplicated transaction with no regulated licences and fewer than 50 employees, four to five months is a realistic estimate. Where the employee-participation review is triggered, or where the KRS initiates anti-abuse scrutiny, the timeline extends to seven to nine months. Parallel preparation of the employment and tax tracks – rather than sequential preparation – is the single most effective way to compress the timeline.
Q: Is an independent expert report on the conversion ratio always required?
A: Under the Commercial Companies Code, the report is mandatory unless all shareholders of all participating companies unanimously waive it in writing. In wholly-owned group structures – where the parent holds 100% of the subsidiary – the waiver is straightforward and commonly used. In structures with minority shareholders, the report provides legal protection for the board and is advisable even where a waiver is technically possible.
Q: Can a Polish sp. z o.o. be the surviving entity in a cross-border merger?
A: Yes. Polish law permits both absorption (where one entity survives) and new-company mergers (where a new entity is incorporated). A Polish sp. z o.o. can be either the absorbing entity or the absorbed entity. Where the Polish company is the surviving entity, the post-merger KRS registration closes the transaction and the foreign entity is deregistered in its home jurisdiction. The KRS will require confirmation of deregistration from the foreign registry before marking the transaction as complete.
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 regulatory compliance. We work with Polish entrepreneurs, foreign investors, and in-house legal teams navigating complex multi-jurisdiction transactions. 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.