Residents of Portugal are subject to taxation on their worldwide incomes, capital gains and inheritances. Non-residents are generally only subject to taxation on their Portuguese-source income.

For tax purposes, a foreign national is considered a resident if he/she stays in Portugal in excess of 183 days during a tax year, a tax year being January 1 to December 31. The 183 days are not required to be consecutive. An accumulated total of 183 days in Portugal will make you a tax resident. Portugal is a signatory to Double Tax Treaties with many nations, which may result in tax concessions in Portugal or your country of origin. It is advisable to consult an international tax specialist to determine your exact tax liability prior to moving abroad.

Residents of Portugal are also subject to certain other taxes, including VAT, vehicle sales tax, stamp tax, rental property tax, taxes on real estate transactions and more.

If you own and maintain a permanent home in Portugal you may be considered a tax resident as well, regardless of length of stay, residence permit or work permit status.