U.S. estate (inheritance) taxes can impose substantial liabilities on non‑resident aliens who own U.S. assets. The tax applies even when the decedent never lived in the United States, and the rates are among the highest worldwide.
What triggers the tax
- U.S. real estate – any property located in the United States.
- U.S. stocks – shares of companies incorporated in the U.S., regardless of where the brokerage account is held (e.g., Europe, Hong Kong).
- Cash held in a U.S. brokerage account – balances in U.S.‑based accounts are included.
- Certain life‑insurance products linked to U.S. assets.
Assets that are not U.S. stocks (e.g., Canadian or Australian shares held in a U.S. brokerage) and cash held in non‑U.S. brokerage accounts are excluded.
Tax thresholds and rates
- The first US $60,000 of U.S. assets is exempt.
- Amounts above that exemption are taxed on a sliding scale, reaching 18 % to 40 % for estates exceeding US $1 million.
- The tax liability escalates quickly once the exemption is surpassed.
Estate‑tax treaties
The United States has entered into roughly 15 estate‑tax treaties with countries that include:
- Australia
- Canada
- France
- Germany
- United Kingdom
- Switzerland
- South Africa
These treaties can reduce or eliminate the U.S. estate tax for residents of the treaty‑partner country, but the provisions are complex and vary by treaty. For most other jurisdictions, the full U.S. estate tax applies.
Mitigation strategies
- Professional advice – Engage a tax adviser familiar with U.S. estate tax and the specific treaty (if any) for your country. Local CPAs may lack the necessary expertise.
- Asset restructuring –
- Transfer U.S. real estate into a foreign corporation, which may shield the property from direct estate taxation.
- Consider selling U.S. stocks and reinvesting in non‑U.S. equities to remove the taxable asset from the estate.
- Review brokerage holdings – Keep cash in non‑U.S. brokerage accounts when possible, as only cash in U.S. accounts is subject to the tax.
Practical considerations
- Timing – Estate‑tax planning is most critical for individuals who are aging or facing serious health issues.
- Cost – Professional services for cross‑border tax planning can be expensive, but the potential tax savings often justify the expense.
- Documentation – Accurate records of asset locations, ownership structures, and treaty eligibility are essential for any mitigation plan.
Risks and caveats
- Misclassifying assets (e.g., treating a foreign‑listed stock held in a U.S. account as a non‑taxable asset) can lead to unexpected tax exposure.
- Treaties may contain residency or holding‑period requirements; failure to meet them can nullify treaty benefits.
- Changing U.S. tax law or treaty renegotiations can alter the effectiveness of existing structures.
Bottom line: Non‑resident aliens with U.S. real estate, U.S.‑listed stocks, or cash in U.S. brokerage accounts face a steep estate‑tax burden above a US $60,000 exemption. Understanding treaty provisions and restructuring assets under professional guidance are the primary ways to mitigate exposure.
