When Americans speak of leaving America, they generally are expressing a desire to live elsewhere in the world for cultural reasons or due to cost of living. These people are called expatriates, aka expats. For clarity, a mere visit to another country does not make you an expat. To be an expat, the move needs to be long-term and often includes working or retiring in the new country. Expats live somewhere outside the U.S., but still have a tax obligation to the U.S. and possibly the country they move to. That will be the focus of this article.

When Your Client’s World Is Bigger Than the U.S.
A lot of client meetings still start with the same assumptions: W-2 in a U.S. state, mortgage nearby, a 401(k), maybe some RSUs, and a college-savings plan. Yet many of those “simple” clients now own an apartment in another country, freelance for a foreign company, or have parents wiring money from overseas. The tax code does not see those details as background color; it treats them as organizing facts. This is where citizenship, residency, and domicile quietly step onto center stage. For planners, the challenge is not memorizing every cross-border rule. It is knowing when a client is no longer “just domestic” and shifting your planning framework before you stumble into penalties, double taxation, or blown opportunities.


