Tax Residency Rules by Country
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Tax residency in Saint Martin
Saint‑Martin (the French overseas collectivity) treats an individual as resident for personal income tax if their tax domicile is in Saint‑Martin, which is the case where, for the tax year, their home (foyer) or principal place of abode is in Saint‑Martin, or they carry on their principal professional activity there (unless ancillary), or the center of their economic interests is there; there is no statutory day‑count test. Individuals who transfer their domicile to Saint‑Martin are regarded as Saint‑Martin tax residents only after maintaining such domicile for five consecutive years; before this five‑year attachment condition is satisfied they are treated as non‑residents for Saint‑Martin purposes. Where dual residence arises between France and Saint‑Martin, residence is resolved under their tax convention using OECD‑model tie‑breakers (permanent home, center of vital interests, habitual abode, nationality, and, if necessary, mutual agreement).
This summary is general information, not tax or legal advice. Rules change and individual circumstances vary — confirm with a qualified adviser before making decisions.
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Day-Count Thresholds
Most countries trigger tax residency after a set number of days. Cross the threshold and you may owe local taxes.
Permanent Establishment
Repeated business travel to a country can create a permanent establishment, triggering corporate tax obligations.
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Understanding the rules before you travel helps you avoid unexpected tax liabilities and costly penalties.
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