The Cook Islands Trust and the Polish Tax Authorities

The Cook Islands Trust and the Polish Tax Authorities

2026-03-22

Polish tax law does not recognize the trust. It does not define it, does not regulate it, does not provide a dedicated regime. Yet it taxes it. The ruling of 12 December 2025 classifies a Cook Islands trust as a controlled foreign company (CFC), denying the general tax transparency treatment applicable to fiduciary relationships.

 

The Cook Islands: A Jurisdiction Built on Unreachability

The Cook Islands is a self-governing territory in free association with New Zealand—fifteen islands in the South Pacific with a total area of 237 km² and a population of under 15,000. It operates its own legal system rooted in English common law, its own diplomatic service (diplomatic relations with the US since 2023), and its own customs regulations. It is not a UN member state. Courts of other nations have no direct jurisdiction over Cook Islands institutions.

Since the International Trusts Act 1984 (ITA) entered into force, the Cook Islands has systematically built a legislative ecosystem for asset protection. Trust services generate approximately 8% of GDP—more than fishing, less than tourism. The flagship product is the Cook Islands International Trust—a structure marketed by promoters as “the strongest asset protection vehicle in the world.”

 

The Legislative Architecture: What the Statute Promises

The ITA rests on four pillars. First—non-recognition of foreign judgments: a judgment obtained in any foreign jurisdiction is unenforceable in the Cook Islands. A creditor must start fresh before the High Court in Avarua. Second—short limitation periods: a creditor has only two years from the date of transfer (or one year from accrual—whichever expires first). Third—criminal standard of proof: the creditor must prove fraudulent intent beyond reasonable doubt. Fourth—the self-settled trust: since the 1989 amendment, the settlor may also be a beneficiary—an innovation later adopted by Nevis, Belize, and others.

A properly drafted trust deed includes an anti-duress clause (the trustee disregards directions given under legal compulsion), a flight clause (migration to another jurisdiction if threatened), and spendthrift provisions. The trustee must be a locally licensed trustee company supervised by the Financial Supervisory Commission.

The tax system completes the picture: the Cook Islands imposes no income tax, capital gains tax, inheritance tax, or withholding tax on income earned by offshore structures from foreign sources. The double tax treaty network is minimal—there is no treaty with Poland (the Poland-New Zealand treaty explicitly excludes the Cook Islands).

 

International Standing: Not as Paradisiacal as It Seems

The Cook Islands received a “Largely Compliant” rating from the OECD Global Forum (confirmed in the second round in 2022), participates in CRS automatic exchange, is not on the FATF blacklist, and has not been consistently placed on the EU list of non-cooperative jurisdictions. Its presence on the Polish list of harmful tax competition jurisdictions follows from formal criteria but does not necessarily reflect the current compliance posture.

 

Promise versus Reality: Anatomy of the Strategic Gap

The ITA’s legislative architecture is impressive on paper. The practical question is different: what exactly does a Cook Islands trust protect, and against what? The answer is considerably more complex than promoter materials suggest.

First: the trust does not protect against criminal, tax-criminal, or fiscal liability in the country of origin. Transferring assets into a Cook Islands trust does not alter unlimited tax liability in Poland. Polish enforcement agencies retain full jurisdiction over the settlor. The Cook Islands’ own Mutual Assistance in Criminal Matters Act 2003 creates a pathway for international cooperation in criminal proceedings—the ITA’s protections expressly do not extend to proceeds of crime.

Second: financial institutions treat Cook Islands trusts with institutional suspicion. The trust must hold its assets somewhere. The Cook Islands’ financial infrastructure is minimal. In practice, assets are deposited with banks in the EU, Switzerland, the US—subject to AML/KYC, CRS, FATCA, and—in criminal proceedings—seizure orders. A Cook Islands trust whose portfolio sits in an EEA bank enjoys ITA protection only vis-à-vis the Avarua court. Vis-à-vis the jurisdiction where the assets reside, that protection is illusory. Compliance departments treat this structure as an AML red flag. The paradox: the stronger the trust’s legal protection, the weaker its access to banking infrastructure.

Third: the Cook Islands is a jurisdiction at the edge of the world—literally and figuratively. The principal cases cited in the literature—FTC v. Affordable Media (Anderson), In re Lawrence, In re Olson—are American cases decided by US courts, not Cook Islands courts. A survey of the case law reveals an ambivalent pattern: American courts imprisoned trust settlors for contempt of court while assets remained formally “protected”—but protected in the sense that the settlor sat in detention.

The fundamental question: how will the Avarua court behave in the face of a coordinated proceeding conducted simultaneously by a G20 prosecution, tax authorities acting under CRS, and the financial regulator where the assets reside? The Cook Islands is de facto dependent on New Zealand and has been building diplomatic ties with the US since 2023. Geopolitical space for resistance to coordinated international pressure is limited. Promoter marketing assumes the ITA is eternal—but legislation is paper, and paper changes under political pressure.

In sum: the Cook Islands International Trust protects against a specific, narrow risk category—civil creditor claims from parties lacking resources to litigate at the antipodes. It does not protect against criminal or tax liability, nor against state action where the assets reside. Its utility is a function of the geography of assets, the settlor’s risk profile, and a realistic assessment of escalation scenarios. For a Polish tax resident whose assets sit in an EEA bank, the equation is particularly unfavourable.

 

Factual Background

A French national with Polish tax residence established an international trust in the Cook Islands in 2024 (ITA 1984) for asset protection and succession planning. Classical structure: settlor → trustee (Cook Islands IBC) → beneficiaries. The trust deed provided for a protector and a non-binding letter of wishes.

The applicant served as investment advisor, advising the trustee on investment strategy. The trustee held as sole member a Cook Islands LLC whose principal asset was a securities portfolio managed by an EEA bank.

The applicant argued for tax transparency citing NSA II FSK 1370/15 and three 2023 KIS rulings (0115-KDIT1.4011.832.2022.2.PSZ, 0112-KDIL2-1.4011.406.2023.2.KF, 0115-KDIT1.4011.383.2023.2.MR).

 

The Authority’s Reasoning

The authority made a dual classification. First: CFC under Article 30f(2)(1)(e) PIT Act (Cook Islands on the tax haven list, §1(6) MF Regulation of 18.12.2024 → automatic CFC under Article 30f(3)(1)).

Second: income from the securities portfolio classified as income from monetary capital (Article 17(1)(4)), not business income (Article 10(1)(3)). Article 8(1) and (2) rejected. Consequence: 19% CFC tax.

The authority did not reject economic attribution of income to the applicant—it stated expressly that tax consequences should be attributed directly to his person. What it denied was the general transparency regime, holding that the CFC framework displaces it for tax haven trusts.

 

NSA II FSK 1370/15—What the Court Actually Decided

The case involved a domestic fiduciary relationship (fiducia cum amico contracta) between two natural persons in Poland. The word “trust” does not appear in the judgment. The NSA’s general thesis was extended by analogy to foreign trusts in subsequent KIS practice—not by the judgment itself. The factual context differs qualitatively: in the NSA case, the fiduciary was a natural person under a mandate contract with no autonomy. The Cook Islands trust is sui generis, with an anti-duress clause that automatically strips the settlor of control upon issuance of a court order.

 

The 2019 Amendment—Partial Resolution

The 2018/2019 amendment included trusts in the CFC definition (Article 30f(2)(1)(e)). The legislature chose: a foreign trust may be a CFC. What it did not resolve: when is it CFC, and when transparent? No boundary criteria—no US-style grantor/non-grantor distinction. The gap is filled by the unwritten geographic criterion.

 

The Unwritten Geographic Criterion

Trusts in non-listed jurisdictions received transparency in 2023; the Cook Islands trust was classified as CFC. The authority applies a de facto criterion: tax haven = CFC; elsewhere = transparent. Pragmatic but without explicit statutory basis. Ironically, the Cook Islands—OECD “Largely Compliant”, CRS participant—is treated identically to jurisdictions with zero transparency.

 

Source of Income—The Second Layer

Income from the securities portfolio was classified as monetary capital income (Article 17(1)(4)), not business income. A separate finding with independent practical consequences.

 

Comparative Perspective

The US distinguishes grantor trusts (transparent) from non-grantor trusts (separate) based on settlor control—a substantive, jurisdiction-independent criterion. Polish law has only fiduciary relationship or CFC. Geography fills the gap—pragmatic but normatively doubtful.

 

Practical Implications

For Polish tax residents: the choice of trust situs has decisive tax consequences. Alternatives: trusts in non-listed jurisdictions (Jersey, Guernsey, Malta) or the Polish family foundation—whose combination even with a foreign foundation may obtain the Head of KAS’s approval (protective opinion of 7 November 2025).

 

Conclusions

The ruling reveals three systemic problems: an unwritten geographic criterion, missing demarcation criteria post-2019 amendment, and erroneous extrapolation of NSA II FSK 1370/15 to qualitatively different structures.

The Cook Islands International Trust itself proves to be an instrument of limited practical utility—protecting against civil creditor claims from parties willing to litigate at the antipodes, but not against criminal or tax liability, nor state action where assets reside. For a Polish tax resident with an EEA-managed portfolio, it generates automatic CFC at 19%, heightened compliance risk, and mounting banking difficulties—while offering protection that operates exclusively in a jurisdiction whose courts the settlor will in all likelihood never need to test.

The collision between common law and civil law in Polish tax law continues—but now at least we know that the principal dividing line is the map, not the substance. And the map of the Cook Islands—fifteen islands at the end of the world—turns out to be considerably less protective than its marketing promises.