Estate Planning for Americans Abroad: Wills, Beneficiaries and Two Legal Systems

Estate planning is easy to postpone at home and even easier abroad — two legal systems, unfamiliar words like “forced heirship,” and the general sense that it’s a problem for later. Here’s the plain-English map of what actually changes when an American’s estate crosses a border — and the handful of fixes that cover most of it.

The headline: your US will doesn’t automatically rule abroad

A valid US will is usually recognised in Europe, but recognition isn’t the whole game. Your new country’s law may govern parts of your estate regardless of what the will says — especially real estate located there, and especially in forced heirship countries (France, Spain, Portugal and others), where the law reserves fixed shares of an estate for children and sometimes spouses. An American “leave everything to my spouse” will can collide head-on with that.

The EU created a powerful tool: the EU Succession Regulation (“Brussels IV”) generally lets foreign residents elect the law of their nationality to govern their estate — but the election usually needs to be made explicitly, in a will. It’s one sentence that changes everything, and most US wills written before the move don’t contain it.

Beneficiary designations quietly outrank wills

Your IRA, 401(k), life insurance and TOD accounts pass by designation, not by will — in any country. Which makes the humble beneficiary form the most powerful estate document most expats own, and the most commonly outdated one. Review every designation as part of the move (it’s a standing item on our 90-day checklist), and think about whether a beneficiary who also lives abroad can practically claim — a US institution paying out to a non-resident involves paperwork worth anticipating.

Taxes: two systems, different logic

The US estate tax exemption is famously high (most households never touch it). European systems often work the other way: inheritance tax charged to the recipient, at rates and allowances that depend on their relationship to you and where they or the assets are. A spouse may be fine; a US-based sibling inheriting your Spanish flat may not be. This asymmetry — not the US side — is usually what needs planning. Treaties exist but are patchy for inheritance. Genuine professional territory: cross-border advisors and local counsel.

The practical fix list

• Update (or write) a will after the move — often one for each jurisdiction, drafted to work together, with the nationality-election clause where applicable.
• Audit every beneficiary designation against your current family map and geography.
• Check ownership forms on foreign property before buying — how title is held drives forced heirship and tax outcomes.
• Powers of attorney and healthcare directives: your US documents may carry no weight locally; get local equivalents.
• Make it findable. The finest estate plan fails if nobody knows where anything is — wills, policies, account lists, contacts, instructions in one organised place. Building exactly that is our Financial Organization System and its Emergency Information Pack.

This article is general information, not legal or tax advice. Succession and inheritance law is jurisdiction-specific — use qualified local and cross-border professionals.