Guides
The rules, in plain language.
The handful of ideas that quietly decide a life across countries. Learn these once and the country pages, the tools and your own plan all read differently. Planning education, not advice.
Foundations
Your visa does not decide who taxes you
Immigration status and tax residence are two different systems, decided by two different rules. Confusing them is the most expensive mistake a mover makes.
Read the guide →Residence, domicile and citizenship are three different things
These three words get used interchangeably and they are not the same. Keeping them straight is half of understanding your own position.
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Tax
The 183-day rule is a floor, not a shield
Staying under 183 days does not keep you safe. The day count is the easiest way to become tax resident, not the only way, and even the count is measured differently from place to place.
Read the guide →When two countries both claim you, the tie-breaker decides
Split your year across countries and more than one can call you tax resident. A tax treaty resolves it with a fixed sequence of tests, and knowing that sequence is how you plan a defensible year.
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