Puerto Rico occupies a unique position in the U.S. tax system—and that uniqueness extends to estate tax treatment.

⚖️ 1️⃣ A Hybrid Regime

Under the

Internal Revenue Code:

• Individuals domiciled in Puerto Rico may, in certain cases, be treated similarly to:

👉 Nonresident aliens (NRAs) for U.S. estate tax purposes

🌍 2️⃣ What Does This Mean in Practice?

Instead of worldwide taxation:

• Only U.S.-situs assets are subject to U.S. estate tax

• U.S. real estate

• Shares of U.S. corporations

• Certain U.S.-based investments

👉 Non-U.S. (including Puerto Rico) assets are generally excluded

Puerto Rico is:

• A U.S. territory, not a foreign country

• But has its own separate tax system

👉 This creates a hybrid treatment:

• Not fully treated like U.S. citizens

• Not fully treated like foreign individuals

The outcome depends heavily on:

• Domicile status

• Whether the individual is considered:

👉 Misclassification can result in:

• Unexpected worldwide taxation

• Or incorrect exclusion of assets

For Puerto Rico residents:

• Exposure is generally limited to U.S.-situs assets

• But structuring and domicile must be carefully analyzed

For individuals domiciled in Puerto Rico:

• U.S. estate tax may apply only to U.S.-situs assets

• The regime functions similarly to NRA treatment

• But depends heavily on correct classification and domicile analysis

In practice:

Puerto Rico sits in a gray zone—where small classification errors can lead to very different tax outcomes.