Portugal Officially Publishes New Nationality Law in Diário da República
Lisbon 18 May, 2026 — Portugal has officially published its new nationality reform today in the Diário da República as Lei Orgânica n.º 1/2026, de 18 de Maio, formally amending Law n.º 37/81, the Portuguese Nationality Law.
The law enters into force the day after publication, meaning the new rules are expected to start applying from 19 May 2026.
One of the biggest changes is the increase in the residence period required for naturalisation: