Understanding US Estate Tax on Worldwide Assets
American citizens and residents face US estate tax on their worldwide assets, including European property holdings. The federal estate tax applies to the total value of your global estate at death, with the current exemption set at $13.99 million per person for 2025 (rising to $15 million in 2026). This means married couples can effectively shield $30 million from estate tax through proper planning.
The estate tax rate reaches 40% on amounts exceeding the exemption threshold. For Americans with substantial European property portfolios, this can create significant tax liabilities that require careful advance planning to mitigate.
How European Property Fits Into Your Taxable Estate
Your European property is valued at fair market value as of the date of death for US estate tax purposes. This includes your primary residence in France, that Italian villa, your London investment flat, or commercial property in Germany. The IRS doesn’t distinguish between property types or locations when calculating your worldwide estate.
Property held through foreign corporations or trusts may still be subject to US estate tax depending on the structure and your level of control. Direct ownership typically provides the clearest tax treatment, though it may not always be the most efficient approach from an overall tax perspective.
Double Taxation Treaties and Relief Mechanisms
The United States maintains estate tax treaties with several European countries, including the UK, France, Germany, Italy, and the Netherlands. These treaties typically provide relief from double taxation through credit mechanisms, allowing you to offset foreign estate or inheritance taxes against your US estate tax liability.
For example, under the US-UK estate tax treaty, if you pay UK inheritance tax on your London property, that payment can generally be credited against your US estate tax on the same asset. However, the credit is limited to the lower of the two tax amounts, and the calculation can become complex with different valuation dates and tax rates.
Countries without estate tax treaties (including Spain, Portugal, and most Eastern European nations) don’t provide this relief mechanism. You could face full taxation in both jurisdictions without any offset, making advance planning even more critical.
Specific Challenges for Americans in Europe
European inheritance laws often include forced heirship rules that conflict with US estate planning strategies. France’s réserve héréditaire, for instance, mandates that certain portions of your estate pass to specific heirs regardless of your will. These restrictions can complicate tax-efficient wealth transfer strategies that work well for US domestic assets.
Currency fluctuations add another layer of complexity. Your European property might be valued in euros for local tax purposes but must be converted to US dollars for the US estate tax return (Form 706). Exchange rate movements between the date of death and the tax filing deadline can affect your final tax liability.
Many Americans in Europe also face the challenge of coordinating with local wealth taxes. Spain’s patrimonio, France’s IFI (for properties above €1.3 million), and similar levies in other countries create ongoing tax obligations that must be factored into your overall estate planning strategy.
Planning Strategies to Reduce Estate Tax Exposure
The most straightforward approach is making lifetime gifts to reduce your taxable estate. The annual gift tax exclusion allows you to give $19,000 per recipient in 2025 and 2026 without using your lifetime exemption. Married couples can combine their exclusions to give $38,000 per recipient annually.
For larger transfers, you can use your lifetime gift and estate tax exemption ($15 million in 2026). Gifting European property during your lifetime removes future appreciation from your estate, though you’ll need professional valuations and must comply with both US gift tax reporting and local transfer tax requirements.
Qualified Personal Residence Trusts (QPRTs) can be particularly effective for European vacation homes. You transfer the property to a trust while retaining the right to use it for a specified term. If you survive the term, the property passes to your beneficiaries at a discounted value for gift tax purposes.
For Americans with substantial European real estate portfolios, offshore structures may provide additional planning opportunities. These typically involve moving assets outside the direct US estate tax net while maintaining some level of control or benefit. However, such structures require careful navigation of anti-avoidance rules and ongoing compliance obligations.
The 2026 Estate Tax Exemption Reduction
The estate tax exemption was permanently extended and increased by the One Big Beautiful Bill Act (signed 4th July 2025), rising to $15 million per person in 2026 with no sunset provision. This permanent increase will significantly reduce the number of Americans subject to estate tax, benefiting those with valuable European property holdings.
With the exemption now permanently elevated at $15 million per person, gifting strategies remain valuable for removing future appreciation from your estate, even without the prior deadline pressure. The IRS has confirmed that gifts made using the higher exemption amounts will be protected, and because the $15 million exemption is now permanent, there is no sunset deadline requiring urgent action.
Compliance and Reporting Requirements
US estate tax returns (Form 706) are due nine months after death, with a possible six-month extension. The return must include all worldwide assets valued above $15 million, requiring professional appraisals for European property and careful documentation of any foreign taxes paid.
Your executor will need to gather property valuations, mortgage statements, local tax assessments, and treaty claim documentation. This process can be particularly challenging when dealing with multiple European jurisdictions, each with different legal systems and languages.
The IRS may challenge property valuations, especially for unique or illiquid assets like European real estate. Maintaining contemporary appraisals and detailed property records during your lifetime can help support the estate tax return values and reduce audit risk.
How We Can Help
International Wealth Ventures provides dual-licensed advisory for Americans in Europe, helping coordinate your US tax obligations with European property holdings. We work with estate planning attorneys and international tax specialists to structure offshore investments and explore annuity options for guaranteed income while managing your overall estate tax exposure. Contact our US expat team to review your European property holdings and estate planning strategy.
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