What is 183-day rule?

183-day rule

The 183-day rule holds that staying more than half a calendar year in a country usually makes you tax resident there. It is the best-known test, but neither the only one nor always the decisive one: many countries also treat you as resident if your centre of economic interests sits in their territory.

Treating 183 days as a safe boundary is the most expensive mistake in ill-informed nomadism. Days are counted differently by country, sometimes including partial arrivals and departures, and the economic-interests test can trigger far earlier. Leaving a country is not enough either: most require proof of tax residence somewhere else.

Also called: day count test, physical presence test

Related terms

Tax residenceTax residence is the country entitled to tax your worldwide income. You do not choose it by declaring it: each jurisdiction determines it through objective tests such as days of presence, where your centre of economic interests lies and where your family lives. You can be tax resident somewhere you barely spend time.
Double taxation treatyA double taxation treaty is an agreement between two countries that allocates the right to tax the same income so it is not taxed twice. It determines which country taxes first, which must grant relief or exemption, and provides tie-breaker rules when both consider you tax resident.