A baby born in Portugal is no longer automatically Portuguese
Most people planning a family here still repeat the old rule: have the baby in Portugal and the baby is Portuguese. That stopped being true in May.
What changed on 19 May 2026
Lei Orgânica 1/2026 rewrote the relevant line of the nationality law. The new wording sets two conditions at once:
A child born in Portugal to foreign parents is Portuguese if they declare they want to be — and provided that, at the moment of birth, at least one parent had been legally resident in Portugal for at least five years.
Two things moved. The residence requirement went from one year to five. And it is no longer automatic: nationality now has to be claimed, not simply recorded.
If you arrived two or three years ago and are expecting a child, this is the paragraph that changes your plan. Count from when your legal residence began, not from when you first landed.
The 20-day clock
Separate from nationality, the birth itself must be registered — and that deadline is short.
Within 20 days of birth. Three ways to do it:
· at a Nascer Cidadão desk inside the maternity unit — most public hospitals have one, and this is the simplest route;
· at any Conservatória do Registo Civil;
· online through Nascimento Online, if you have Chave Móvel Digital or a Cartão de Cidadão.
Foreign parents bring documents proving their own place of birth and their residence — that second one is exactly what the nationality condition is checked against, so take the residence card, not just the passport.
The child's own paperwork
Registration is the start, not the end. The child needs their own records regardless of which nationality they end up with:
NIF — the tax number, needed for health cover, benefits, and later to list the child as a dependent on your IRS.
Número de utente (SNS) — for paediatric care at your health centre. Where the child is registered as Portuguese, the citizen card and the SNS number are issued automatically with the birth registration.
Residence permit — if the parents are non-EU residents and the child does not acquire Portuguese nationality, the child needs their own permit through AIMA, based on being born to a legal resident. It is a lighter route than reunification from abroad, but it is still a file with its own timeline.
If you do not reach five years
Nothing is lost, but the plan is different. The child follows your nationality by descent — most countries pass citizenship to children born abroad, and that usually means registering the birth with your consulate in Portugal. Do both: the Portuguese registration for the local record, the consular one for the passport.
Portuguese nationality then comes later, by the ordinary routes, once the residence condition is met.
If a parent is an EU citizen
The family follows EU-family rules rather than the third-country route: a parent with a CRUE gives the child a different, simpler path to legal residence here. That does not by itself grant Portuguese nationality — the five-year condition applies to the parent's legal residence in Portugal regardless of which passport they hold.
Bottom line: register the birth within 20 days, take your residence card to the desk, and check the five-year condition against your actual residence history before assuming the baby is Portuguese. The rule changed in May, and most guidance online still describes the old one.
General information, not legal advice. Nationality rules changed in 2026 and are still being amended — confirm the current text for your exact case, especially before a birth abroad or a consular registration.
Guidance, not legal or tax advice — verify your case with official sources.