A case currently before the Supreme Court, Charles Moore, G. Moore et ux. v. United States , has the court looking at some of the fundamentals of the Constitution’s treatment of taxation. Advocates of various views are hoping for an earthshaking result. Also, many “tax protester” arguments base themselves on misreading of Supreme Court decisions from around the time of the 16th Amendment. Knowing a fuller version of what surrounds the snippets they feed you probably won’t help you bring them around if they have drunk deep of the tax protester Kool-Aid, but it will help you maintain your own sanity. Let’s start with what the Moore case is about.

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.


