Dollar Risk and Offshore Trusts

An offshore trust holds assets in multiple currencies through foreign custodians that offer multi-currency accounts, non-dollar-denominated investments, and securities custody outside the U.S. financial system. Keeping all liquid wealth in a single currency concentrates exposure the same way an all-in bet on one stock does, and an offshore trust is the most direct way to reduce that concentration.

The dollar lost roughly 10% against a basket of major currencies in early 2025 alone. Previous sustained periods of dollar weakness have lasted five to ten years and produced declines of 30% to 50%. Currency diversification through an offshore trust requires recognizing that single-currency concentration is a risk, not predicting a dollar collapse.

Why the Dollar’s Trajectory Concerns Investors

Central banks worldwide have been reducing their U.S. dollar reserves for over two decades. Global dollar reserves dropped from roughly 70% to 58% between 2000 and late 2024, while central bank gold purchases have reached levels not seen in decades. BRICS nations have actively pursued bilateral trade agreements settled in non-dollar currencies, and de-dollarization has accelerated since 2022.

The structural forces behind these shifts include U.S. federal debt exceeding $36 trillion, persistent fiscal deficits, and periods of aggressive monetary expansion. These factors do not guarantee a dollar decline, but they explain why the rest of the world is diversifying away from dollar concentration—and why individual investors holding 100% dollar exposure face the same underlying question.

The Swiss franc has appreciated roughly 89% against the U.S. dollar since 2000. The euro, despite its own periods of weakness, has outperformed the dollar over the same timeframe. Someone who held everything in dollars lost global purchasing power over that stretch. A person who diversified across currencies fared better, regardless of how U.S. equities performed.

Why an Offshore Trust Is Necessary for Currency Diversification

U.S. banks generally cannot hold foreign currency deposits. A domestic brokerage account may offer some international investments, but the account itself remains within the U.S. financial system, denominated in dollars at the custodian level and subject to U.S. court jurisdiction.

An offshore trust holds accounts at foreign banks and custodians where multi-currency functionality is standard. A trust account at a Swiss or Singaporean institution can maintain balances simultaneously in U.S. dollars, euros, Swiss francs, British pounds, and other currencies. The settlor or trustee allocates across currencies based on the trust’s investment objectives.

Foreign custodians also offer access to non-dollar-denominated investments that domestic brokerages may not carry—foreign government bonds, euro-denominated corporate debt, and equity funds priced in currencies other than the dollar. The trust provides the legal vehicle for holding these assets outside the U.S. financial system, combining currency diversification with jurisdictional separation.

What This Looks Like in Practice

A Cook Islands trust custodied in Switzerland might split its portfolio: 50% dollar-denominated securities, 25% euro-denominated bonds, 15% Swiss franc holdings, and 10% other currencies or precious metals. The specific allocation depends on the settlor’s goals and the trustee’s investment guidelines.

Rebalancing between currencies happens as part of normal portfolio management. The settlor does not need separate accounts in each currency or personal management of foreign exchange transactions. The multi-currency account treats different currencies as different asset classes within a single custodial relationship.

A 20% dollar decline against the euro makes euro-denominated holdings worth 20% more in dollar terms—purely from the currency shift, independent of investment performance. The trust’s total value is partially insulated from the dollar’s decline because not all assets are priced in dollars.

What Currency Diversification Does Not Do

Currency diversification through an offshore trust redistributes exchange rate risk across multiple currencies rather than eliminating it. If the euro weakens while the dollar strengthens, euro-denominated holdings lose value in dollar terms. The point is avoiding 100% exposure to any single currency’s performance, not predicting which currency will outperform.

Currency diversification also does not protect against a global financial crisis that affects all major currencies simultaneously. It protects against the specific risk that one currency underperforms relative to others over an extended period.

Tax and Reporting Obligations Remain Unchanged

Offshore trust assets are fully reportable to the IRS regardless of what currency they are denominated in. The IRS requires all foreign financial accounts and assets reported as U.S. dollar equivalents, and foreign-currency income is converted to dollars for tax purposes. IRS reporting obligations apply to every foreign trust account regardless of the currencies held.

The PFIC Trap in Foreign Investments

Investing through an offshore trust requires careful attention to how investment vehicles are structured. Foreign-domiciled mutual funds, foreign ETFs, and pooled investment vehicles held outside the U.S. are classified as Passive Foreign Investment Companies under U.S. tax law. PFIC classification triggers a punitive tax regime: gains are taxed at the highest ordinary income rate plus an interest charge calculated as if the gain accrued ratably over the holding period. The tax penalty effectively eliminates the advantage of holding these instruments.

Offshore trust portfolios typically avoid PFICs by holding individual securities, U.S.-domiciled ETFs, or separately managed accounts rather than foreign pooled funds. A CPA experienced in international tax planning structures the portfolio to avoid this trap.

Who Benefits from Currency Diversification Through an Offshore Trust

Currency diversification through an offshore trust makes the most sense when liquid assets exceed $1 million and the holding period is a decade or longer. Short-term currency movements are unpredictable, and the structure costs $20,000 to $25,000 upfront plus $5,000 to $8,000 annually, so the time horizon must be long enough for currency trends to develop.

The structure also makes sense for individuals who spend time abroad, maintain foreign property, or expect to retire outside the United States. Holding assets in the currencies where future expenses will occur reduces conversion risk at the point of spending.

For most people pursuing an offshore asset protection trust, currency diversification is a secondary benefit. The trust is established for creditor protection or jurisdictional diversification, and multi-currency holding is an additional capability the structure makes available. But for some people watching the dollar’s trajectory and the structural factors behind it, the ability to hold non-dollar assets through a fully compliant legal structure is what starts the conversation.