If you're thinking of moving to Portugal, obtaining a Tax Identification Number (NIF) is an essential step. Essential for a multitude of daily activities, from paying for groceries to buying a house, the NIF is your key to successful integration in this magnificent country. Contrary to popular belief, obtaining an NIF is quick and easy, even for non-EU/EFTA citizens, with the possibility of acquiring it online for less than €100 and in less than a week. In this comprehensive guide, I explain everything you need to know about obtaining your Portuguese NIF in 2025, online or in person, without hassle or excessive costs.