Before you leave Italy: AIRE, taxes, pension and health
Register with AIRE within 90 days
Moving to Portugal for more than 12 months, you must register with AIRE (Anagrafe degli italiani residenti all'estero), the register of Italians living abroad, within 90 days of your move. You do it online on the Foreign Ministry's Fast It portal; the consular office of the Italian Embassy in Lisbon passes it on to your Comune, which keeps your AIRE file. Your registration counts from the day you file a complete request.
To prove your address in Portugal, the Embassy asks for a utility bill in your name (water, electricity or gas), a work contract, a lease of at least one year, renewable, or the papers of a business you open there. It does not accept your CRUE, a certificate from the junta de freguesia, your NIF, a bank account or a mobile phone bill.
Not registering in time costs a fine of €200 to €1,000 for each year, set by your Comune; €20 if you file less than 90 days late, before any check. AIRE is also what lets you renew your passport or ID card at the consulate, and vote from Portugal: by post in national elections and referendums, and at the consulate's polling stations for Italy's seats in the European Parliament (or for Portugal's, if you choose).
Your Italian tax residence
Italy taxes your income from all over the world for any year in which, for most of the year (183 days, 184 in a leap year, part days included), you lived in Italy, had your domicile there (the place of your main personal and family ties) or were on a Comune's population register. Since 2024 that registration is only a presumption: you can prove you lived abroad.
There is no split year with Portugal. Leave in the first half of the year, with your family, and register with AIRE at once, and you can be a non-resident in Italy for that whole year. Leave later, and you remain an Italian tax resident for that year, while Portugal taxes you from your first day there: the Italy–Portugal convention then decides which country comes first (your permanent home, then the centre of your vital interests). As a non-resident, Italy taxes only your income from Italy, as far as the convention allows.
Your Italian pension and health insurance
INPS pays pensions abroad through Citibank, to a Portuguese account or to an Italian one: give your new bank details (IBAN and BIC) to the INPS office that manages your pension and to the bank. Paid outside Italy, your pension comes with a yearly proof of life (esistenza in vita): Citibank sends you a form, which an "acceptable witness" countersigns, such as the consular office in Lisbon, an honorary consulate or a patronato, and you have 120 days to send it back. Late, you are paid once in cash at a counter of Citibank's local partner, and if you don't collect it, your pension is suspended.
Until INPS applies the tax convention, it withholds Italian tax: send it the EP-I form with the Portuguese tax office's certificate of your tax residence (see Taxes). Drawing an Italian pension and not working in Portugal? Ask your ASL for the S1 form (see Healthcare).