A couple in Denver — one spouse American, the other a German citizen here on a green card — sits down to do 'normal' estate planning and discovers the rules treat their marriage differently. The unlimited marital deduction most couples lean on doesn't automatically apply when the surviving spouse isn't a U.S. citizen. Nobody warned them.
This is the quiet trap of cross-border planning: citizenship and residency change the tax treatment underneath familiar-looking documents. Families with a non-citizen spouse, foreign property, inheritances arriving from abroad, or careers that move between countries all need planning that accounts for those layers.
Whiteford's national trusts and estates platform includes deep experience with international families, and our Colorado team brings that to the Front Range. From qualified domestic trusts for non-citizen spouses to coordinating a Colorado will with property overseas, the goal is a plan that works on both sides of every border your family crosses.
The non-citizen spouse problem, plainly stated
American tax law generally lets spouses leave each other unlimited amounts free of estate tax. When the survivor is not a U.S. citizen, the law worries the assets might leave the country — so the automatic unlimited deduction is withheld. For couples with meaningful assets, that single difference can reshape the entire plan.
The established solution is a qualified domestic trust, or QDOT: a special trust that holds assets for the non-citizen spouse and preserves marital-deduction treatment while keeping the property within reach of U.S. tax rules. Some couples plan around the issue with lifetime gifts, life insurance, or a path to citizenship. The attorney will tailor the mix.
When life and property span two countries
Cross-border families face a second layer of questions. Where you are 'domiciled' — the country you treat as your permanent home — can determine which nation taxes your worldwide estate. The United States maintains estate tax treaties with a number of countries that decide who taxes what, and foreign property often passes under the other country's inheritance rules regardless of what a Colorado will says.
Practical planning means mapping every asset to the legal system that will actually govern it. Many families end up with coordinated documents — a Colorado plan for U.S. assets and separate arrangements abroad — drafted so they don't accidentally revoke each other. Reporting obligations for foreign accounts and gifts deserve equal attention, because penalties for silence are far worse than the taxes themselves.
- Couples where one or both spouses are not U.S. citizens, including green card holders
- Families expecting an inheritance from relatives overseas
- Professionals at Colorado employers on visas who are building U.S. assets
- Owners of homes, accounts, or business interests in another country
- Parents whose children live, or hold citizenship, abroad
How Whiteford approaches global families
We start by charting the family's full picture: citizenships, visas, domicile intentions, and every asset's location. That map usually makes the plan almost self-evident — where a QDOT fits, whether treaty relief applies, which documents belong in which country. When foreign counsel is needed, our national platform coordinates with advisors abroad.
Because immigration status and exemption rules both evolve, cross-border plans deserve periodic review. The free Colorado Estate Snapshot at /estate-snapshot is an easy way to surface the cross-border pieces, and a free Legacy Game Plan Session is the natural next step.
