Cook Islands
High relevanceThe Cook Islands is the premier offshore asset protection trust jurisdiction, governed by the International Trusts Act 1984. Its strong debtor-friendly protections attract U.S. settlors, all of whom face Form 3520 and 3520-A obligations.
Trust law framework
The Cook Islands International Trusts Act 1984 (as amended) is the foundational statute for international trusts in the jurisdiction. The Cook Islands—a self-governing territory in free association with New Zealand—pioneered the modern offshore asset protection trust and remains the most frequently cited jurisdiction for this purpose.
The Cook Islands does not impose income tax on international trusts (trusts where the settlor and beneficiaries are non-residents and the trust property is outside the Cook Islands). There is no U.S.–Cook Islands income tax treaty. For U.S. tax purposes, Cook Islands trusts are foreign trusts under Treas. Reg. §301.7701-7.
Asset protection features
The International Trusts Act includes provisions that make Cook Islands trusts exceptionally difficult for creditors to attack. The statute of limitations for fraudulent disposition claims is two years from the date of the settlement (or one year from the date the creditor could reasonably have discovered the transfer, if later), and the creditor must prove the case beyond a reasonable doubt—the criminal standard of proof, not the civil preponderance standard. Foreign judgments, including U.S. court judgments, are not enforceable against a Cook Islands trust.
These features make the Cook Islands the most commonly chosen jurisdiction for U.S. persons establishing asset protection trusts. However, U.S. courts have ordered U.S. settlors to repatriate assets from Cook Islands trusts, and have imposed contempt sanctions (including imprisonment) on settlors who fail to comply. The trust's legal protections under Cook Islands law do not shield the U.S. settlor from the jurisdiction of U.S. courts.
For U.S. tax purposes, the asset protection features do not alter the trust's classification or the settlor's reporting obligations. A Cook Islands trust is a foreign trust, and the U.S. settlor who retains any benefit or power is the owner under the grantor trust rules.
Reporting obligations and penalties
The transfer of assets to a Cook Islands trust triggers Form 3520 Part I (§6048(a)). Because the U.S. settlor of an asset protection trust virtually always retains some interest or power (even if only as a discretionary beneficiary), the trust is nearly always a grantor trust, requiring annual Form 3520-A and Form 3520 Part II (§6048(b)). Distributions to U.S. beneficiaries require Part III reporting (§6048(c)).
Penalties under §6677(a) are 35% of the gross reportable amount for Parts I and III. Under §6677(b), the penalty for Part II and Form 3520-A is the greater of $10,000 or 5% of the gross reportable amount.
Practitioners should be aware that the IRS and DOJ have devoted significant enforcement resources to offshore asset protection trusts, and the Cook Islands is at the top of the list. Willful failure to file, or willful underreporting, can result in additional penalties, including criminal penalties under IRC §7206 for filing a false return or §7203 for willful failure to file. Advising a client to establish a Cook Islands trust without ensuring full compliance with U.S. reporting requirements exposes both the client and the advisor to serious risk.
Practical considerations
Cook Islands trust companies are licensed by the Financial Supervisory Commission and are required to maintain adequate records. However, obtaining trust financial information for Form 3520-A purposes can be challenging if the trustee is not familiar with U.S. requirements or is reluctant to share information (particularly when the trust is designed to limit the settlor's access to information as part of the asset protection strategy).
Practitioners should establish the trust's U.S. reporting framework at the time the trust is created, including securing the trustee's agreement to cooperate with U.S. filing requirements or, alternatively, ensuring that the U.S. owner has sufficient access to trust records to prepare a substitute Form 3520-A.
References
- Cook Islands International Trusts Act 1984 (as amended) - Foundational statute for international asset protection trusts; includes short limitation periods and heightened creditor burden of proof
- IRC §6048 - Reporting requirements for foreign trusts: establishes the obligation to file Forms 3520 and 3520-A
- IRC §6677 - Penalty for failure to file: 35% for Parts I/III (§6677(a)), 5% or $10,000 for Part II and 3520-A (§6677(b))
- Treas. Reg. §301.7701-7 - Defines when an arrangement is a "foreign trust": the court test and control test
Ready to file?
If you have a foreign trust, pension, or gift from Cook Islands that needs reporting, our guided interview walks you through Form 3520 and Form 3520-A step by step.
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