Domicile

Domicile is the place a person treats as their permanent legal home, where they intend to remain indefinitely and return to when absent. It determines which state or country's laws govern your estate, your tax obligations, and matters of personal status such as marriage and divorce. You can live somewhere temporarily without making it your domicile. Only the place you treat as your true permanent home qualifies.

Domicile matters most in three areas: estate and inheritance tax, income tax, and the jurisdiction whose courts have authority over your affairs.

Domicile vs. Residency: A Critical Distinction

Residency describes where you physically live. Domicile describes where you intend to stay permanently. You can be a resident of multiple states in a single year if you spend significant time in each. You can only have one domicile at a time.

A person who spends January through April in Florida and May through December in New York is a resident of both states for income tax purposes. But they have only one domicile, and establishing which one requires examining where their permanent home, professional ties, family relationships, and civic connections are centered.

How Courts Determine Domicile

Courts look at objective evidence, not declarations. Saying "I intend Florida to be my domicile" is not sufficient. You must demonstrate the intent through consistent action.

Factors courts and tax authorities examine include:

• Where you maintain your primary residence and the largest home
• Where your spouse and children live and attend school
• Where you are registered to vote
• Where you obtained your driver's license
• Where you maintain your primary bank accounts and safe deposit boxes
• Where your doctors, lawyers, and accountants are located
• Where your professional licenses and memberships are held
• Where you attend religious services and social clubs

Domicile and Estate Tax Exposure

Your domicile at death determines which state can impose an estate or inheritance tax on your assets. New York imposes an estate tax on all assets of a New York domiciliary, regardless of where those assets are physically located. Florida has no state estate tax. Many high-net-worth individuals change domicile to a no-tax state for exactly this reason.

Changing domicile effectively requires more than renting a Florida apartment. New York's Department of Taxation and Finance routinely challenges claimed domicile changes and applies a "183-day rule" as one factor, though spending fewer than 183 days in New York does not automatically establish a new domicile elsewhere.

Corporate Domicile

Corporations and other legal entities also have a domicile, typically the state where they are incorporated. A Delaware corporation has Delaware as its domicile for legal purposes even if it operates exclusively in Texas. Delaware domicile gives the corporation access to Delaware's business-friendly court system and established corporate law, which is why more than 60% of Fortune 500 companies are incorporated there.

International Domicile Issues

U.S. citizens living abroad are taxed on worldwide income regardless of where they domicile, because the U.S. taxes based on citizenship as well as residence. Non-U.S. citizens who become U.S. domiciliaries become subject to U.S. estate tax on their worldwide assets upon death. Understanding domicile in an international context requires working with a tax attorney experienced in both the U.S. system and the laws of the country where you live.

Sources

• https://www.irs.gov/individuals/international-taxpayers/residency-starting-and-ending-dates
• https://www.law.cornell.edu/wex/domicile
• https://www.tax.ny.gov/pubs_and_bulls/tg_bulletins/pit/domicile.htm