According to the Portuguese tax law in force since January 2015, an individual is deemed to be resident in Portugal for tax purposes if one meets either of the following conditions:
- Spends more than 183 days, consecutive or not, in Portugal in any 12-month period starting or ending in the fiscal year concerned.
- Regardless of spending less than 183 days in Portugal, maintains a residence (i.e. a habitual residence) in Portugal during any day of the period referred above.
The PIT Reform introduced a partial residence concept, so that there is a direct connection between the period of physical presence in Portuguese territory and the status of tax resident.
Thus, as a rule, the taxpayer will become resident in Portugal as of the first day of stay in the Portuguese territory and non-tax resident as of the last day of stay in Portugal, with a few exceptions.