The Estonian Company in Polish Tax Law: Beyond the Marketing Brochure

The Estonian private limited company (osaühing, OÜ) is widely marketed to Polish residents as an efficient vehicle for tax optimization, principally on account of Estonia’s distributed profits tax regime. This Article examines the position of such an entity under Polish tax law, focusing on two parallel exposures—the controlled foreign company (CFC) regime under Article 30f of the Polish Personal Income Tax Act and the place-of-management test under Article 3(1a) of the Polish Corporate Income Tax Act—and on the protective architecture available to taxpayers. The analysis identifies three independent routes out of the CFC regime, considers the doctrinal force and limits of individual tax rulings under Articles 14k and 14m of the Polish Tax Ordinance Act, surveys the operation of the place-of-management test as modified by the 2022 reforms, and gives particular attention to the unusual residence tie-breaker in the Poland–Estonia double tax treaty of 1994, which survives unmodified by the Multilateral Instrument. The Article concludes that substantive economic activity in Estonia constitutes the most robust defensive posture across all three doctrinal fronts, while the treaty tie-breaker affords an additional, structurally distinctive layer of protection rarely encountered in Poland’s other bilateral instruments.

Introduction

The Estonian company is presently marketed to Polish clients in standardized packages, frequently advertised at prices on the order of EUR 99: an online formation procedure, e-residency, and an undertaking that the corporate tax burden will remain at zero so long as profits are retained rather than distributed. Each of these representations is, on its own terms, accurate. They describe the Estonian side of the transaction. The Polish side, which the marketing materials do not describe—and have no commercial incentive to describe—is the proper subject of the present analysis. The Polish resident who acquires such a company assumes, on the date of incorporation, exposure to two distinct mechanisms of Polish tax law. The first is the CFC regime imposed by Article 30f of the Personal Income Tax Act (the “PIT Act”). The second is the place-of-management test under Article 3(1a) of the Corporate Income Tax Act (the “CIT Act”). The consequences of these two mechanisms differ materially and the doctrinal defenses available against them differ as well. It is the burden of this Article to map both.

What the Marketing Materials Get Right

The Estonian distributed profits tax (DPT), in force since 2000, operates substantively as advertised. An Estonian resident company is not subject to corporate income tax upon the realization of profit; the taxable event is the distribution of profit to shareholders, whether by way of dividend, deemed distribution, or equivalent transfer. In any fiscal year in which no such distribution occurs, the company’s corporate income tax liability is, in principle, zero. This represents not a loophole but a deliberate fiscal policy: the Estonian legislator has elected to tax consumption from capital rather than the productivity of capital itself. The remaining elements of the marketing proposition—the e-residency program, the availability of online incorporation, the use of a registered address in Tallinn, the provision of bookkeeping services by Estonian providers—are equally accurate as descriptions of the Estonian regime. The company so formed is a fully constituted legal person under Estonian law, registered in the Commercial Register, operating under the Estonian Commercial Code. Each of these representations holds up under examination. They cease to be dispositive, however, the moment Polish tax authorities begin to ask their own questions.

The Polish Tax Architecture: Two Parallel Risks

A Polish resident who owns an Estonian OÜ is exposed to two doctrinally distinct tests under Polish tax law, the consequences of which are not commensurate.

The first is the CFC test under Article 30f(3) of the PIT Act. A negative determination results in the imposition of Polish personal income tax at the rate of 19% on the controlled entity’s profit attributable to the resident shareholder, regardless of whether any distribution has in fact occurred. In substance, the Polish fisc treats undistributed profits in the Estonian entity as if they had been received by the shareholder.

The second is the place-of-management test under Article 3(1a) of the CIT Act, in force since 1 January 2022. The consequence here is graver: the Estonian company itself is reclassified as a Polish tax resident notwithstanding its formal Estonian incorporation, and becomes subject to Polish corporate income tax on its worldwide income on ordinary terms. The CFC regime captures the shareholder; the place-of-management test captures the company in its entirety.

Each test requires separate analysis, and in suitable cases an individual tax ruling addressed to each in turn. The marketing literature seldom addresses the first and almost never addresses the second.

The CFC Test under Article 30f(3) PIT Act

The Polish CFC regime was introduced in 2015 and has been the subject of substantial amendment in 2018, 2019, and—most consequentially—in 2022 under the package commonly referred to as the Polish Deal. Each amendment has shifted the analytical center of gravity, with the result that an individual tax ruling issued in 2018 and a ruling issued in 2025 may reach opposite conclusions in respect of identically structured entities; both may nonetheless be correct on the law applicable to their respective dates. The taxpayer seeking guidance from publicly available sources may encounter materials that are mutually consistent only in their inconsistency with one another.

In its current iteration, Article 30f(3) of the PIT Act prescribes five alternative routes to CFC classification. Four of these are seldom triggered by a typical Estonian OÜ. They concern tax havens (Estonia is not such), jurisdictions lacking an information-exchange agreement (Poland and Estonia are bound by the 1994 double tax treaty, the information-exchange provision of which is Article 27), holding companies dominated by passive assets, and low-substance entities generating disproportionate income. The operative route, for practical purposes, is the third.

Article 30f(3)(3) requires the cumulative satisfaction of three conditions.

(a) Control. A Polish resident—whether acting individually, jointly with affiliated parties, or (as of 1 January 2022) jointly with other Polish residents holding at least 25% of equity or voting rights—must hold more than 50% of equity, voting rights, or profit participation, or exercise factual control over the entity.

(b) Thirty-three percent passive income. At least one-third of the entity’s gross income for the tax year must derive from a statutorily enumerated catalogue of “passive” sources. This catalogue includes the traditional categories of dividends, interest, royalties, and gains from the disposal of shares, but since 2022 has expressly extended to consulting services, accounting services, market research, advertising services, management and control services, data processing, lease and sublease arrangements, and related-party transactions devoid of economic value added.

(c) Effective taxation. The tax actually paid by the entity must be lower, by at least 25%, than the tax it would have paid in Poland at the 19% CIT rate.

For a typical Estonian OÜ controlled by a Polish resident, condition (a) is plainly satisfied. Condition (c) is likewise satisfied in any year of profit retention, since the Estonian DPT regime imposes no tax in the absence of distribution; zero is lower than 19% by considerably more than 25%. This is the point at which commentary frequently goes astray, treating condition (c) as an automatic disqualifier. The opposite is true: condition (c) is almost always satisfied during years of retention, but this alone resolves nothing, for conditions (a), (b), and (c) must occur conjunctively.

Three Independent Routes Out of the CFC Regime

The enumeration of conditions in Article 30f(3)(3) might suggest that an entity engaged in consulting, advertising, or management services—activities falling squarely within the post-2022 passive catalogue—is irretrievably exposed to CFC classification. The contrary is true. The Polish legislator has provided, for the typical Estonian OÜ, three independent routes out of the CFC regime, each of which operates autonomously. Compliance with the conditions of any one suffices.

A. Services Outside the Catalogue (Condition (b) Unsatisfied)

The first route consists in establishing that the entity’s revenues fall outside the statutory passive catalogue. This is fundamentally a question of linguistic interpretation, conducted by reference to administrative court decisions, dictionary definitions of the relevant Polish terms, and prior interpretations of similar provisions in other statutory contexts.

The most recent dispositive authority demonstrating the operation of this route is the individual ruling issued by the Director of the National Revenue Information (KIS) on 5 September 2025, reference 0115-KDIT3.4011.560.2025.2.PS. The facts: a Ukrainian national who became a Polish tax resident in 2025, holding 52% of the share capital of an Estonian company providing two distinct service offerings (the substance of which has been anonymized in the publicly available text). The company did not distribute dividends, held no participations in other entities, owned no real estate, and rendered no services to related parties. The KIS endorsed the taxpayer’s position. The dispositive analysis turned on condition (b): the taxpayer demonstrated in detail that the services rendered did not constitute “consulting,” “market research,” “advertising,” “management,” “data processing,” or “lease and sublease” within the meaning of the statute, supporting each negation with reference to Supreme Administrative Court and Provincial Administrative Court decisions, Polish-language dictionaries, and earlier rulings. Each definitional element characteristic of a given service—for example, “intermediation in the transmission of knowledge” for consulting—was shown to be absent from the actual conduct of the company’s business.

The lesson is straightforward. Services described as “consulting,” “client marketing,” or “strategic advisory” fall within the catalogue as a matter of textual classification, since these expressly entered the catalogue in 2022. Services described as “technical services not enumerated in the catalogue,” “proprietary software development,” or “trading in goods within a logistics framework” retain a genuine prospect of exclusion. The matter is one of precise characterization and rigorous defense of that characterization.

B. Substantive Economic Activity in the EU or EEA

The second route is provided by Article 30f(18) of the PIT Act. The provision states that the CFC rules shall not apply where the controlled foreign company:

• is subject to taxation on its worldwide income in an EU or EEA Member State (Estonia satisfies this condition), and
• conducts substantive genuine economic activity in that State.

The exclusion is not limited to record-keeping and reporting obligations; it extends to the tax liability itself. The Polish commentary is unequivocal on this point: a determination that the entity conducts substantive economic activity constitutes a sufficient condition for the avoidance of CFC taxation, notwithstanding the satisfaction of all conditions otherwise constituting the entity a CFC (W. Modzelewski, J. Bielawny, M. Słomka, Komentarz do art. 30f PDOFizU, 25th ed., 2026, II.8). The exclusion derives from the Court of Justice of the European Union’s judgment in Cadbury Schweppes plc v. Commissioners of Inland Revenue, Case C-196/04, [2006] ECR I-7995, and was introduced into Polish law in order to render the CFC regime compatible with the freedom of establishment under Article 49 of the Treaty on the Functioning of the European Union.

The content of “substantive genuine economic activity” is elaborated in Article 30f(20) of the PIT Act, which prescribes an open-ended catalogue of relevant indicia: the formal incorporation of the entity is associated with the existence of an enterprise within which it carries on actual economic functions; the entity maintains premises, qualified personnel, and equipment used in the conduct of business; the entity does not constitute a structure operating in isolation from economic motive; the scale of the entity’s activity is commensurate with the premises, personnel, and equipment it maintains; the entity discharges its principal economic functions through resources of its own. Article 30f(20a), introduced by the 2017 amendment, adds a proportionality criterion: the ratio of revenue derived from substantive activity to total revenue is to be considered.

This is, in essence, a substance route. It operates even in respect of an entity providing services that fall squarely within the passive catalogue, provided those services are in fact rendered in Estonia by Estonian personnel using Estonian infrastructure.

C. Profit Distribution Triggering Estonian Taxation (Condition (c) Unsatisfied)

The third route operates by reference to condition (c). The Estonian DPT rate in 2025 and 2026 is 22% of the distributed amount (formally calculated as 22/78 of net distribution), which exceeds the Polish CIT rate of 19%. In any year of full distribution, in which the Estonian tax has in fact been remitted, condition (c) cannot be satisfied: the actual Estonian tax exceeds the hypothetical Polish tax rather than falling below it by 25% or more.

This is a narrow route in temporal terms, operating only in years of actual distribution. It is, however, definitive in its operation and dispenses with both linguistic argument concerning the character of services rendered and evidentiary argument concerning substance. Where the shareholder accepts that 22% Estonian DPT will be paid upon distribution, the CFC question for the relevant year simply does not arise.

Each of these three routes operates autonomously. A typical Estonian OÜ controlled by a Polish resident may exit the CFC regime continuously through the first or second route (or both), and through the third in any year in which distribution actually occurs. The choice among them is not exclusive; it is a portfolio.

The Protective Force of Individual Tax Rulings and Its Limits

The individual ruling of the Director of KIS dated 5 September 2025 establishes a template by which a typical Estonian OÜ may be successfully excluded from the CFC regime via the first route. The protective force of such a ruling, however, is not absolute, and the Polish resident who intends to rely upon it must understand its limits.

The guarantee principle articulated in Article 14k § 1 of the Polish Tax Ordinance Act provides that a taxpayer’s reliance upon an individual tax ruling cannot redound to the taxpayer’s detriment. The protective function is realized not through the binding effect of the ruling upon the tax authority (an individual ruling does not constitute a source of law and accordingly does not bind), but rather through the principle that, even where the authority issues a decision inconsistent with the ruling, the taxpayer who has relied upon it does not suffer adverse consequences.

The legislator distinguishes two scopes of this protection. Broad protection under Article 14m § 1 of the Tax Ordinance Act constitutes an exemption from the obligation to pay tax in respect of the event addressed by the ruling—on the condition that the tax consequences arose after the ruling was served upon the taxpayer. Narrow protection encompasses the absence of default interest and the absence of fiscal penal consequences but does not exempt from the payment of the tax itself; it applies where the tax consequences arose before receipt of the ruling. From the perspective of a client planning the formation of an Estonian OÜ, the practical implication is straightforward: the application for an individual ruling should be filed before the commencement of activity in the relevant service profile, not after. This secures broad protection and permits the applicant genuinely to shape the company’s actual activity in accordance with the description set out in the application.

The most consequential pitfall, however, is of a different character: protection extends only to the extent that the facts presented in the application correspond to the actual factual circumstances as subsequently established by the tax authority in the course of audit or examination. The Provincial Administrative Court in Wrocław, in its judgment of 12 December 2019 (I SA/Wr 650/19), articulated this principle unequivocally: where, in the course of tax proceedings, the authorities establish facts in a manner divergent from those that formed the basis of the ruling, that ruling—to the extent of the divergence in facts—does not justify legal protection.

For the typical Estonian company, this consideration entails three concrete precautions.

First, the description of services in the application must accurately reflect the actual scope of the company’s activity. Where the application represents the rendering of only “technical services not enumerated in the catalogue,” but the company in fact also offers strategic advisory, market research, or marketing services, the ruling does not protect in respect of those additional services. The audit authority may, in that regard, consider condition (b) of Article 30f(3)(3) PIT satisfied and the company classified as a CFC, notwithstanding the formal possession of a favorable ruling.

Second, any material change in the business model subsequent to the issuance of the ruling necessitates a new ruling. Each substantive modification of the service profile—the introduction of a new service line falling within the catalogue, a change in revenue structure, the addition of related-party services—may undermine the protective force of the prior ruling in respect of those new elements.

Third, not every discrepancy deprives the applicant of protection. The case law confirms that only those elements of the factual presentation which bear upon the assessment of tax consequences are material. Discrepancies in immaterial elements (for instance, in the manner of organizing routine bookkeeping, where this does not alter the classification of services) do not undermine protective force. From this follows a practical drafting principle: the description of facts should be candid but focused upon elements that genuinely affect the qualification at hand. An excess of detail increases the probability that some circumstance described in the application will subsequently change or be otherwise construed in the course of audit.

An individual tax ruling is a strategic instrument, not an insurance policy. It protects the applicant in respect of what has been truthfully described—and no further.

The Place-of-Management Test under Article 3(1a) CIT Act

The graver risk for a typical “Estonian company acquired by a Polish resident” is not the CFC regime but rather the place-of-management test under Article 3(1a) of the CIT Act, in force since 1 January 2022.

Article 3(1a) provides that the place of management of a taxpayer is located on the territory of the Republic of Poland where the current affairs of the taxpayer are conducted in a continuous and organized manner on the basis of an agreement, decision, judicial order, or other document, or on the basis of relations between affiliated entities, one of which exerts significant influence over another. The provision is, by design, directed at structures that maintain formal foreign registration while retaining their operational locus in Poland.

The Provincial Administrative Court in Szczecin, in its judgment of 20 July 2022 (I SA/Sz 320/22), construed “place of effective management” as “the place where the actual management of the entity is conducted, where decisions of key importance to the entity are made—those, that is, possessing significance for the entity from both an economic and a functional standpoint.” Substance, not form, controls. A company whose owner works from a Polish computer, executes agreements from a Polish desk, and decides commercial questions in a Polish café is, by that standard, managed from Poland—regardless of any e-residency certificate or registered address in Tallinn.

Here, however, the architecture acquires an unexpected treaty defense. The Poland–Estonia double tax treaty of 9 May 1994 contains, in Article 4(3), an atypical residence tie-breaker for non-individual persons: “Where, by reason of the provisions of paragraph 1, a person other than an individual is a resident of both Contracting States, then it shall be deemed to be a resident of the Contracting State under whose law it derives its status.” The formulation conforms to neither the pre-2017 OECD Model (which employed “place of effective management” as the tie-breaker) nor to the post-2017 OECD Model (which substituted mutual agreement procedure). It refers, in substance, to the law of incorporation—the legal system under which the entity has come into being and derives its juridical personality. Estonia did not elect the optional modification of Article 4 under the Multilateral Instrument (MLI), and the rule accordingly remains in force in its original form.

The practical consequence is that an Estonian OÜ, which derives its status from the Estonian Commercial Code, remains a treaty resident of Estonia—even if a Polish authority establishes that its place of effective management is in Poland for purposes of Article 3(1a) of the CIT Act. Treaty defense is not illusory; it is operative. This is a feature of the particular treaty—negotiated in 1994 in circumstances that favored stability of registration-based residence for a newly independent Estonian economy—and not a feature replicated in Poland’s analogous instruments with Cyprus, Malta, or the Netherlands.

The treaty defense does not, however, exhaust the operative consequences of management substance in Poland. Article 5(2)(a) of the same treaty enumerates “a place of management” as an express example of a permanent establishment. Where, accordingly, an Estonian company is managed from Poland in fact, the Polish authority may contend that the company maintains a permanent establishment in Poland for treaty purposes. The result is not the absorption of the company itself (which remains, at the treaty level, Estonian) but the attribution to a Polish PE of profits actually generated in Poland and their taxation under Article 7 of the treaty. The dispute does not vanish; its locus shifts from the existence of the company to the allocation of its income.

A further consideration is the principal purpose test (PPT) introduced into the treaty by Article 7(1) MLI. The PPT, conceptually adjacent to the Polish general anti-avoidance rule, denies treaty benefits where it can reasonably be concluded that obtaining the relevant benefit was one of the principal purposes of the arrangement. For an Estonian company conducting substantive activity in Estonia, the PPT poses limited risk. For a shell e-residency vehicle controlled by a Polish resident, whose only discernible raison d’être is the deferral of Polish tax, the PPT presents a real risk and may, in litigation, reach the treaty’s residence protections.

The composite picture is as follows. An entity with substantive activity in Estonia prevails both under domestic law (Article 3(1a) of the CIT Act does not engage) and under the treaty (the tie-breaker would protect it, but the conflict does not arise). A shell entity loses under domestic law but retains treaty protection for residence purposes; what remains is the profits attributable to the Polish PE under Articles 5 and 7, and the prospective application of the PPT. Substance in Estonia thus remains the argument of broadest defensive reach, but the treaty tie-breaker of Article 4(3) operates as an independent and structurally distinct layer of protection—a feature that, in the Polish treaty network, the Poland–Estonia instrument uniquely affords.

Substance as a Threefold Defense

The “EUR 99 OÜ” packages offered to foreign clients sell, in substantive terms, a corporate shell. E-residency, registered address, and remote bookkeeping are administrative overlays; they are not economic substance. From the perspective of the Polish fisc the distinction is dispositive across three doctrinal fronts simultaneously. First, substance grounds the second route out of the CFC regime under Article 30f(18) of the PIT Act. Second, substance neutralizes the place-of-management test under Article 3(1a) of the CIT Act: if management is in fact conducted from Estonia, the domestic test does not engage. Third, substance forecloses both the PE doctrine under Articles 5 and 7 of the treaty and the operation of the PPT under Article 7(1) MLI; where the principal functions are performed in Estonia, no Polish PE arises, and the PPT has no underlying anomaly to challenge. Tax audits in cases of cross-border residence transition routinely begin from substance inquiries for precisely this reason: it is the argument of broadest defensive reach.

An Estonian company that operates substantively, from the perspective of Polish law, will typically present at least the following indicia: an Estonian-resident member of the management board taking operational decisions in Estonia; office premises in Estonia at which work is actually performed (as distinct from a mere mail-forwarding facility); employees or contracted specialists engaged in Estonia; revenues a substantial portion of which is generated from arm’s-length transactions with clients unrelated to the Polish controlling shareholder; and documentary traces of decision-making—minutes, correspondence, calendars—originating in Estonia.

The inquiry is not a matter of binary classification. The greater the density of these indicia, the stronger the entity’s defensive posture across all three fronts. An entity whose owner is the sole member of its management board, resides in Warsaw, works from home, and communicates with an Estonian accountant on a quarterly basis is, by contrast, deficient on each front. The treaty tie-breaker of Article 4(3) preserves such an entity from absorption as a corporate person, but not from the attribution of income to a Polish PE. Between these two poles lies a substantial gray zone in which the outcome of a tax audit cannot be predicted with confidence in either direction.

Practitioner’s Checklist: Four Questions

A Polish resident contemplating the formation of an Estonian company for purposes of tax planning should be in a position to answer the following four questions before retaining a formation service.

First: what services will the company supply, and do those services fall within the passive catalogue of Article 30f(3)(3)(b) PIT Act? Consulting, advisory, marketing, advertising, market research, management, lease, and sublease enter the catalogue as a matter of statutory text since 2022; the first route out of the CFC regime is therefore unavailable, and reliance must be placed upon the substance route, the distribution route, or both. Trading in goods, proprietary software development, and technical services not enumerated in the catalogue remain available to the first route, with substance as an optional reinforcement.

Second: by whom and from which jurisdiction will the company’s operational decisions be taken? Where the answer is “by the owner, from the owner’s Polish desk,” the company is a Polish tax resident under Article 3(1a) of the CIT Act as a matter of domestic law. The treaty tie-breaker of Article 4(3) preserves the company’s Estonian residence at the treaty level, but only as a corporate person; profits attributable to a Polish PE—which the authority will readily construct, since “place of management” is an express example of a PE under Article 5(2)(a) of the treaty—remain taxable in Poland. The PPT under Article 7(1) MLI presents an additional risk in arrangements lacking substance.

Third: what economic substance will the company maintain in Estonia? Premises, personnel, an Estonian-resident director, clients unrelated to the Polish controlling shareholder—each indicium fortifies the entity’s position on three fronts simultaneously. Substance is the most diversified defensive investment available to such a structure.

Fourth: by what means and at what cadence will profits be distributed? The Estonian DPT regime imposes zero CIT for so long as profits are retained—but in that period the first and second routes out of the CFC regime are equally operative. When distribution occurs, the Estonian 22% DPT applies; the Polish 19% PIT applies to the dividend at the shareholder level, subject to credit for the underlying Estonian tax; and the entire architecture of the double tax treaty enters operation. It is also the moment at which the third route out of the CFC regime activates: the 22% Estonian tax having been paid, condition (c) is no longer satisfied. A planning structure that functions only for so long as the company never distributes its earnings is not a planning structure. It is a deferral.

Levels of Certainty

Certain. An Estonian OÜ controlled by a Polish resident enjoys three independent routes out of the CFC regime: services outside the passive catalogue of Article 30f(3)(3)(b) PIT (the linguistic route); substantive economic activity in Estonia within the meaning of Article 30f(18) PIT (the substance route); or actual profit distribution attracting Estonian DPT (the income route). Each operates autonomously.

Certain. Since 1 January 2022, Article 3(1a) of the CIT Act creates an independent risk of reclassification of a foreign company as a Polish tax resident under domestic law. The Poland–Estonia treaty, by contrast, preserves Estonian residence at the treaty level: Article 4(3) refers to the law under which the entity derives its status (the law of incorporation), and Estonia did not elect to modify this rule under the MLI. The treaty protection does not, however, prevent the attribution of profits to a Polish PE under Articles 5 and 7 of the treaty (Article 5(2)(a) enumerates “place of management” as an express example of a PE), nor does it foreclose the PPT under Article 7(1) MLI.

Certain. Substantive economic activity in Estonia—premises, personnel, an Estonian-resident director, arm’s-length clients unrelated to the controlling shareholder—operates as a threefold protection: it excludes CFC classification under Article 30f(18) PIT, prevents engagement of the place-of-management test under Article 3(1a) CIT, and forecloses both the PE doctrine and the PPT.

Certain. The protective force of an individual tax ruling extends only to those facts that are consistent with the facts subsequently established in the course of audit proceedings. A divergence in material elements of the description—in particular, in the character of the services rendered—deprives the taxpayer of protection to the extent of that divergence, even where the ruling otherwise remains operative.

Probable. Polish administrative practice in respect of Estonian companies is likely to intensify its scrutiny of substance rather than of rate—particularly insofar as the post-2022 passive catalogue has materially expanded the universe of CFC exposures. Rulings issued in 2025, although favorable to the taxpayer, demand considerably greater factual specification than the rulings of 2017 or 2018.

Uncertain. No published administrative court decision presently addresses the qualification of Estonian OÜ entities as CFCs under the post-2019 and post-2022 amendments. The body of KIS rulings remains the dominant interpretive source and may, in time, be modified by the administrative courts in either direction.

Conclusion

The Estonian company is not, in itself, an objectionable instrument. It functions, in the manner in which it is advertised, in cases that correspond to its presupposed reality: substantive operations in Estonia, a predictable distribution model, and an Estonian footprint commensurate with the scale of business conducted. The Polish legislator has provided, for such a structure, not one but three independent routes out of the CFC regime, and the Poland–Estonia treaty supplements these with a residence tie-breaker that is uniquely favorable within Poland’s treaty network—rendering it, for an appropriately structured Estonian vehicle, a genuinely operative instrument of cross-border planning. Where, however, the entity reduces to a registered address held by a Polish resident operating from a Polish desk, the layered protections degrade in sequence: the treaty tie-breaker preserves the company as a corporate person, but does not protect profits attributable to a Polish PE, and the principal purpose test stands ready to act on what remains.

Marketing materials offering “EUR 99 OÜ” packages describe the Estonian side of the transaction accurately. They do not describe the Polish side, having neither obligation nor competence to do so. The Polish resident acquires such a company together with two tests of Polish tax law—and also together with constructive exits from those tests. Their consequences are not extinguished by the absence of their mention in the formation prospectus. The exits, however, operate only for the resident who has identified them and has, in fact, made use of them—and an individual tax ruling, however potent an instrument, protects only to the extent that it has been truthfully framed.

Robert Nogacki

Robert Nogacki – licensed legal counsel (radca prawny, WA-9026), Founder of Kancelaria Prawna Skarbiec.

There are lawyers who practice law. And there are those who deal with problems for which the law has no ready answer. For over twenty years, Kancelaria Skarbiec has worked at the intersection of tax law, corporate structures, and the deeply human reluctance to give the state more than the state is owed. We advise entrepreneurs from over a dozen countries – from those on the Forbes list to those whose bank account was just seized by the tax authority and who do not know what to do tomorrow morning.

One of the most frequently cited experts on tax law in Polish media – he writes for Rzeczpospolita, Dziennik Gazeta Prawna, and Parkiet not because it looks good on a résumé, but because certain things cannot be explained in a court filing and someone needs to say them out loud. Author of AI Decoding Satoshi Nakamoto: Artificial Intelligence on the Trail of Bitcoin’s Creator. Co-author of the award-winning book Bezpieczeństwo współczesnej firmy (Security of a Modern Company).

Kancelaria Skarbiec holds top positions in the tax law firm rankings of Dziennik Gazeta Prawna. Four-time winner of the European Medal, recipient of the title International Tax Planning Law Firm of the Year in Poland.

He specializes in tax disputes with fiscal authorities, international tax planning, crypto-asset regulation, and asset protection. Since 2006, he has led the WGI case – one of the longest-running criminal proceedings in the history of the Polish financial market – because there are things you do not leave half-done, even if they take two decades. He believes the law is too serious to be treated only seriously – and that the best legal advice is the kind that ensures the client never has to stand before a court.