Peter A. Ryan, J.D. | Bespoke Wealth Solutions
One of the first questions I hear from CPAs and wealth advisors who are introduced to the Cook Islands trust structure is some version of this: “Does it reduce my client’s taxes?”
The honest answer is no. A properly structured Cook Islands International Trust does not reduce a U.S. person’s tax liability. It does not create a deduction, shelter income, or eliminate capital gains. For U.S. tax purposes, it is classified as a grantor trust, which means all income, gains, and losses flow directly through to the settlor’s personal tax return as if the trust did not exist.
But tax-neutral is not the same as tax-irrelevant.
The structure interacts with tax strategy in ways that sophisticated advisors increasingly recognize as significant, not by reducing the tax owed, but by giving the client control over when, how, and from what source that tax is paid. For clients managing large concentrated positions, approaching a liquidity event, or holding appreciated assets across multiple jurisdictions, that distinction can represent a substantial economic advantage.
The U.S. Tax Framework: Grantor Trust Treatment
Under the Internal Revenue Code, a Cook Islands International Trust established by a U.S. person is treated as a foreign grantor trust. All trust income is reported on the settlor’s U.S. individual income tax return. Capital gains realized within the trust are taxed to the settlor at the settlor’s applicable rate. Contributions to the trust are not deductible and do not create a taxable event.
The required reporting: U.S. settlors must file Form 3520 and Form 3520-A annually. Offshore bank accounts held through the Cook Islands LLC require FBAR filing (FinCEN Form 114) and, for accounts above the applicable threshold, Form 8938 under FATCA. These are disclosure obligations, not tax liabilities. The structure is fully transparent to the IRS.
Capital Gains and the Realization Timing Problem
The most significant tax interaction involves capital gains and the problem of forced realization.
Consider a client who holds a $10 million portfolio of appreciated securities inside a domestic brokerage account. If a creditor obtains a judgment, a domestic court can issue a turnover order directing the client to liquidate the securities and surrender the proceeds. The liquidation triggers capital gains tax, potentially at the federal long-term rate of 20% plus the 3.8% net investment income surtax, plus applicable state taxes. In a high-tax state, the effective combined rate on a large gain can approach 30% or more. The creditor collects, and the IRS collects alongside them.
Inside a Cook Islands trust structure, the turnover order cannot reach the assets. The Cook Islands LLC holds the securities in a Swiss private banking account. The court order has no authority over the foreign trustee. There is no forced liquidation. No forced realization of capital gains. The tax event that would otherwise be triggered by a creditor’s collection effort simply does not occur.
This is not tax avoidance. The gains remain unrealized and will eventually be taxed when realized voluntarily, on the client’s terms and timeline. The structure preserves the client’s ability to manage realization timing rather than surrendering it to a court order.
The Lombard Facility: Liquidity Without Realization
The Swiss or Liechtenstein private banking relationship includes a Lombard credit facility. Against assets on deposit, the private bank extends a credit line of approximately 70 to 80 percent of portfolio value at current rates of approximately 1.5 to 2.5 percent per annum. The client borrows against their own assets rather than selling them.
A loan is not a taxable event. Under U.S. tax law, borrowing money does not generate income, regardless of how the proceeds are used. The client who needs $3 million for a real estate acquisition, a business investment, or personal liquidity can draw on the Lombard facility, deploy the capital, and repay the line over time, all without selling appreciated securities and without triggering a capital gains recognition event.
For a client holding $10 million in securities with a $2 million cost basis, a forced sale to access $3 million in liquidity could generate $2.4 million in taxable gain at a 30% combined rate, resulting in $720,000 in immediate tax liability. The Lombard facility eliminates that tax cost entirely, at a borrowing cost of approximately $45,000 to $75,000 annually at current rates.
This is a legitimate, well-established banking technique used by European private banking clients for generations. It is not a tax shelter. It is simply a more efficient method of accessing liquidity than selling assets.
Non-U.S. Clients: Different Frameworks, Same Structure
United Kingdom: UK residents who establish Cook Islands trusts are subject to the UK’s offshore trust taxation regime under the Income Tax Act 2007 and the Taxation of Chargeable Gains Act 1992. The transfer of assets abroad provisions (Sections 720-730 ITA 2007) and the offshore income gains regime require careful pre-structuring analysis. UK-based settlors and beneficiaries are subject to CRS reporting. The asset protection benefits are fully available to UK residents, but the tax analysis requires engagement with UK tax counsel.
European Union: EU residents face varied trust tax treatment depending on their country of residence. Most EU jurisdictions do not have a domestic trust concept, and offshore trusts are analyzed as either transparent or separate taxable entities depending on the degree of control retained. EU residents are subject to CRS reporting obligations that ensure automatic disclosure to their home tax authority. France, Germany, Italy, and Spain each have specific anti-avoidance provisions that may apply.
The consistent principle across jurisdictions: the structure does not create a tax benefit that did not otherwise exist. Tax planning remains the domain of local tax counsel working in coordination with the offshore architecture.
The Estate Tax Dimension
A Cook Islands trust structured as an irrevocable foreign trust, with no retained powers that would cause inclusion in the gross estate under Sections 2036 or 2038 of the Internal Revenue Code, may reduce the client’s U.S. taxable estate. If the settlor does not retain the right to revoke the trust, amend its terms, or recapture the transferred assets, the trust assets may not be included in the gross estate at death.
This is a legitimate estate planning benefit. It is the same principle that applies to domestic irrevocable trusts, applied to an offshore structure. Clients approaching the federal estate tax exemption threshold should discuss this dimension with both their estate planning attorney and their tax advisor.
What This Means for Wealth Advisors and CPAs
If your clients have asked whether offshore structuring can help with taxes, the accurate answer is: the structure does not reduce tax liability directly, but it interacts with your client’s tax strategy in three meaningful ways.
First, it eliminates the risk of forced realization, the scenario where a creditor’s collection efforts trigger capital gains tax at the worst possible moment.
Second, the Lombard credit facility provides a tax-efficient alternative to asset liquidation for clients who need liquidity without triggering gains.
Third, for clients with estate tax exposure, a properly structured irrevocable foreign trust may reduce the taxable estate, subject to careful compliance with the IRC’s retained interest rules.
The interaction between offshore structuring and any individual client’s tax position requires analysis by qualified tax counsel. Bespoke Wealth Solutions provides the structural architecture and coordinates with your existing advisory team.
To discuss how these structures interact with your clients’ specific situations, contact us at bespokewealth.solutions/contact/.
Initial consultations are complimentary.
This article is provided for informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship. Consult qualified legal counsel before implementing any planning strategy.