The NIF is your nine digit tax identification number and the first thing you need when moving to Portugal.
You will need this number to open a bank account, sign a rental lease, or even get a phone contract.
EU citizens can get their NIF in person at any finance office in Portugal in just one to two hours.
Non EU citizens can now apply remotely through a Portuguese consulate which usually takes between one and three weeks.
The application is free and you only need a valid passport and proof of your intended residence to apply.
Your NIF is assigned to you for life and it never expires even if you leave the country temporarily.