Guide

The 183-day rule

"Stay under 183 days and you won't be tax resident" is a common belief and often wrong. 183 days is one test in many countries, but rarely the only one, and countries count days differently.

How countries use 183 days

CountryThe day testOther tests
SpainMore than 183 days in the calendar yearMain base of business or economic interests; family living in Spain
FranceNo fixed number: more than 183 days is usually read as your main place of stayYour home or family, your main work, the centre of your economic interests (service-public.fr)
PortugalMore than 183 days in any 12-month periodA home you intend to keep as your usual residence
Ireland183 days or more in the calendar year, or 280 over two yearsOrdinary residence after three years
UK183 days or more makes you resident automaticallyFewer days can still make you resident through your UK ties

More on leaving the UK: the Statutory Residence Test explained. On leaving Ireland: Irish tax residency when you leave. Both are from Dubai Transition Consultants. Dubai Transition Consultants is run by the same company as RezTally.

Three things that catch people out

  1. The days needn't be in a row. Every country here adds up all your days, not one continuous stay.
  2. Counting methods differ. Ireland, Spain, France and Portugal count any part of a day; the UK counts a day only if you are there at midnight.
  3. Under 183 isn't a safe harbour. Your home, family and work can make you resident with far fewer days, and a tax treaty decides where you pay when two countries both treat you as resident.

Second homes in the EU

If you hold a UK or other non-EU passport, the Schengen 90/180 rule usually stops you well before 183 days in Spain, France or Portugal unless you have a residence permit. Count both: the Schengen calculator and the Spain day counter take the same dates.