Descent vs Naturalisation: Two Separate Routes
Portuguese citizenship law provides two fundamentally different pathways to citizenship for foreign nationals: naturalisation and acquisition by descent (jus sanguinis). Naturalisation — governed by Article 6(1) of Lei n.º 37/81, the Nationality Law, as amended — requires the applicant to have lived in Portugal legally for a specified number of years, meet language and civic requirements, and have no disqualifying criminal history. Under the law approved by the Portuguese parliament on April 1, 2026, the naturalisation residency requirement is 10 years for most non-EU nationals and 7 years for EU and CPLP nationals. This is the route most immigration guides discuss, and it is the route most affected by the April 2026 changes.
The descent route is separate. Under Portuguese law, citizenship by descent recognises that nationality passes through bloodlines — from a Portuguese parent to their child automatically, and from a Portuguese grandparent to a grandchild through an application process. This route does not require the applicant to have lived in Portugal. It requires proving the lineage, meeting the language standard, and demonstrating effective ties to the Portuguese community. The April 2026 nationality law — for all the controversy it generated — did not impose a residency requirement on the grandparent descent route. Applicants who qualify through a Portuguese grandparent can still apply regardless of where they live. The law did make two changes that affect the descent route: it tightened the criminal conviction disqualification from five years to three years, and it abolished the Sephardic Jewish special route that had operated since 2015. Those changes are addressed in the final section.
The distinction between these routes matters enormously in practice. Someone whose parent is Portuguese acquires Portuguese citizenship automatically at birth under Article 1(1)(b) or 1(1)(c) of the Nationality Law — no application is needed beyond formal registration. Someone whose grandparent (but not parent) is Portuguese does not acquire citizenship automatically; they must apply under Article 6. The application is filed with the Instituto dos Registos e do Notariado (IRN) and requires the submission of a complete documentary file establishing the lineage and meeting the language and character requirements. Importantly, this application is not naturalisation in the legal sense — it is a distinct form of acquisition by descent through an administrative process.
Who Qualifies: The Grandparent Requirements
To apply for Portuguese citizenship through a grandparent, you must satisfy three primary conditions. First, you must have at least one grandparent who is or was a Portuguese national. The grandparent must have held Portuguese nationality — not merely Portuguese ancestry or residence in Portugal — and that status must be provable through official civil registration documents. It does not matter whether the grandparent is still alive or still holds Portuguese nationality; what matters is that Portuguese nationality existed in the grandparent at the relevant time. A grandparent who emigrated and naturalised in another country, potentially losing Portuguese nationality in the process, may still satisfy this requirement if they held Portuguese nationality when your parent was born.
Second, you must demonstrate effective ties to the Portuguese community (ligação efectiva à comunidade nacional portuguesa). This is the most contextual requirement and the one that allows IRN the greatest discretion. Evidence of effective ties includes: knowledge of the Portuguese language (demonstrated through the A2 certificate, addressed below); previous visits to Portugal; participation in Portuguese cultural associations or diaspora communities; Portuguese schooling or education in Portuguese-language institutions; family ties with Portuguese nationals beyond the grandparent; or other connections that indicate a genuine relationship with Portuguese culture and society. There is no prescribed list or minimum score — IRN assesses the totality of the evidence. Applicants who submit a strong A2 certificate alongside credible cultural or associative evidence typically satisfy this requirement without difficulty.
Third, you must not have been sentenced to a prison term of three or more years for a crime committed under Portuguese law or an equivalent foreign law. This is the criminal conviction threshold that the April 2026 nationality law lowered from five years to three years. The threshold applies to final convictions — charges, investigations, or suspended sentences of less than three years do not automatically disqualify an applicant. If you have a criminal record of any kind, you should obtain a full criminal record certificate from your country of residence and consult an immigration lawyer before filing, as the IRN will review criminal records as part of the application.
Required Documents
The documentary file for a grandparent descent application must establish the lineage from you to the Portuguese grandparent through a chain of certified civil registration documents. The standard documents required are: your grandparent's Portuguese birth certificate (certidão de nascimento), issued by the Portuguese civil registry (Conservatória do Registo Civil) — if the grandparent was born in former Portuguese overseas territories, the relevant registry may be different; your parent's birth certificate showing them as the child of the Portuguese grandparent; and your own full birth certificate showing you as the child of that parent. All three birth certificates must be full-form (certidão completa or equivalente), not summary extracts, as IRN requires full lineage details.
Foreign documents — any document not issued by a Portuguese authority — must generally be apostilled under the Hague Convention (where the issuing country is a Hague signatory) or legalised through diplomatic channels. They must then be translated into Portuguese by a sworn translator (tradutor juramentado) unless they are already in Portuguese. Portuguese-language documents from Brazil, Angola, Mozambique, and other CPLP countries typically do not require translation but still require apostille. Documents from countries that are not Hague signatories require legalisation through the Portuguese consulate in the issuing country, which adds time and cost. Along with the lineage documents, you must submit: a valid copy of your passport or national identity document; an A2 Portuguese language certificate (see next section); a criminal record certificate (certificado de registo criminal) from your country or countries of residence and citizenship covering the past five years; and the application form filed through the Portuguese consulate or directly at IRN.
If original Portuguese civil registration records for your grandparent are unavailable because they have been lost or destroyed — a situation that arises with some regularity for records from the 19th and early 20th centuries, from former colonies, or from areas affected by natural events — IRN may accept alternative evidence of Portuguese nationality, such as a Portuguese identity card (bilhete de identidade), a Portuguese passport, or a notarially certified statement of the grandparent's Portuguese nationality. A Portuguese immigration lawyer or specialist in citizenship by descent can help identify which substitute documents are acceptable in your specific situation.
The A2 Portuguese Language Requirement
An A2-level Portuguese language certificate is mandatory for all Article 6 citizenship applications, including the grandparent descent route. A2 is the second level of the Common European Framework of Reference for Languages (CEFR), representing basic communicative ability: understanding sentences relating to familiar topics, communicating in simple routine exchanges, and describing aspects of background and immediate environment. This level is significantly more attainable than the B1 or B2 levels required for citizenship in many other European countries. The principal examination body for A2 Portuguese certification is CAPLE — the Centro de Avaliação de Português Língua Estrangeira, operated by the University of Lisbon's Faculty of Letters. The relevant exam is the CIPLE (Certificado Inicial de Português Língua Estrangeira). CIPLE exams are offered multiple times per year at CAPLE-authorised testing centres worldwide, including in Brazil, the United States, France, Germany, the United Kingdom, and dozens of other countries.
Automatic exemptions from the A2 language requirement apply in several circumstances. If you completed at least two years of education (primary or secondary) in a Portuguese-language institution — whether in Portugal, Brazil, or another Portuguese-speaking country — you may be exempt upon presenting certified school records. If you hold a degree from a Portuguese-language university, that also satisfies the requirement. Children under 10 years of age are exempt. Applicants born in Portugal who spent significant time in a Portuguese-speaking environment in childhood may also qualify for exemption, though this is assessed case by case. If you believe you may qualify for an exemption, obtain a written confirmation from the Portuguese consulate or IRN before relying on it — submitting an application without an A2 certificate or formal exemption will result in the file being returned incomplete.
Preparing for the CIPLE exam typically takes between 60 and 120 hours of structured study for someone starting from zero. The exam consists of four components: listening comprehension, reading comprehension, written production, and oral interaction. Passing requires a minimum score of 55% across the components with no component below 40%. Preparation materials are available from the CAPLE website. Many online language schools offer A2 Portuguese preparation courses specifically targeted at the CIPLE exam, including remote instruction tailored to the Portuguese spoken in Portugal rather than the Brazilian variety used in some commercial platforms.
How to Apply: IRN Process and Timeline
Applications for Portuguese citizenship by descent can be submitted in one of two ways: through a Portuguese consulate in your country of residence, or directly at IRN in Portugal. If you are not resident in Portugal, the consulate route is standard. You schedule an appointment at the Portuguese consulate with jurisdiction over your area of residence, attend in person with your complete documentary file, pay the applicable fees, and the consulate forwards the file to IRN's Citizenship Department (Departamento de Cidadania) in Lisbon for review and decision. If you reside in Portugal on a valid residence permit, you can submit directly to IRN at one of its offices (Conservatórias do Registo Civil) or by mail to the competent service.
The application fee is currently €175, payable at the time of submission. This covers the processing of the citizenship registration and the issuance of a Portuguese birth certificate (assento de nascimento) if citizenship is granted. There is no additional fee for the citizenship card (cartão de cidadão), which is issued separately through the Instituto dos Registos e do Notariado as well, but passport and identity card applications require separate fees. Application fees paid are non-refundable if the application is refused.
IRN does not publish real-time processing statistics for the citizenship by descent route. Based on reports from applicants and immigration lawyers, current realistic timelines range from 18 to 36 months from submission of a complete file to receipt of a decision. The most common cause of delay is incompleteness at the time of submission: if any document is missing, incorrectly apostilled, translated by a non-approved translator, or inconsistent with the information in other documents, IRN will return the file for correction, which effectively restarts the timeline for that file. Submitting the most complete and fully certified file possible on the first attempt is the single most effective way to minimise the overall wait. Once a decision is issued, you will be notified by the consulate or by registered letter. If approved, IRN issues a Portuguese birth certificate (assento de nascimento) confirming your Portuguese nationality, and you can then apply for a Portuguese identity card (cartão de cidadão) and passport.
If your application is refused, you have the right to contest the decision administratively (recurso administrativo) within 15 days by requesting the IRN Director to review the decision, or judicially (recurso contencioso) before the administrative courts within the applicable time limit. Refusals are typically based on insufficient documentation of the lineage, failure to meet the effective ties requirement, or a disqualifying criminal conviction. Legal assistance is strongly recommended if you intend to contest a refusal.
How the April 2026 Nationality Law Affects the Descent Route
The Portuguese parliament approved a major revision of the Nationality Law on April 1, 2026, doubling the naturalisation residency requirement for most non-EU nationals from 5 to 10 years and for EU and CPLP nationals from 3 to 7 years. The law passed with 151 votes in favour and is now awaiting promulgation by President Seguro, who has until approximately April 21, 2026 to sign, veto, or refer it to the Constitutional Court. For the full details of the presidential decision scenarios, see the Portugal Nationality Law 2026 presidential decision guide.
The grandparent descent route is not affected by the 10-year naturalisation rule. That rule applies only to applicants seeking citizenship on the basis of legal residence in Portugal — it does not add a residency requirement to citizenship applications based on lineage. Applicants pursuing citizenship through a Portuguese grandparent under the Article 6 descent process do not need to reside in Portugal for any minimum period, and this has not changed under the April 2026 law.
Two changes in the April 2026 law do affect the descent route. The first is the criminal conviction threshold: the new law lowers the disqualifying sentence from five years to three years of imprisonment. This tighter standard applies across all citizenship routes, including descent applications. If you have a prior conviction carrying a three-year or greater sentence — whether in Portugal or abroad under an equivalent offence — your citizenship by descent application will be refused under the new law once it enters force. The second change is the abolition of the Sephardic Jewish citizenship route established by Law 30-A/2015. The Sephardic route allowed descendants of Sephardic Jews expelled from Portugal in the 15th century to apply for citizenship without residency or language requirements; that route is eliminated by the April 2026 law. Standard descent applications through a Portuguese grandparent are unaffected by this abolition.
One practical consequence of the 2026 law worth flagging: the new law's lack of transitional protections extends only to the naturalisation route for which it removes them. The April 2026 law as approved does not contain transitional provisions for naturalisation applicants already in the pipeline — they are subject to the new 10-year rule upon the law's entry into force. The descent route does not have this problem: since there is no residency requirement in descent applications, there is no "old timeline" to be grandfathered, and a pending descent application is not materially disadvantaged by the law's entry into force beyond the tighter criminal conviction threshold. If you have a pending descent application and no disqualifying conviction, your application is not at significant risk from the 2026 law.
Frequently Asked Questions
Does the new 10-year residency rule apply to citizenship through a Portuguese grandparent?
No. The April 2026 nationality law's 10-year naturalisation requirement applies only to naturalisation applications — those based on legal residence in Portugal for the required years. Citizenship through a Portuguese grandparent (the descent route) does not require you to have lived in Portugal at all. The 2026 law changed the criminal conviction threshold from 5 to 3 years (affecting all routes) and abolished the Sephardic route, but did not impose a residency requirement on descent applications.
My grandparent was Portuguese but died before I was born. Can I still apply?
Yes. Your grandparent does not need to be alive. You need to prove the lineage: your grandparent's Portuguese civil registration documents establishing their Portuguese nationality, your parent's birth certificate showing the relationship to the Portuguese grandparent, and your own birth certificate. If original documents have been lost, Portuguese civil registration archives may assist in reconstruction. A Portuguese immigration lawyer can advise on alternatives when specific documents are unavailable.
Do I need to speak Portuguese to get citizenship through a grandparent?
Yes. An A2-level Portuguese language certificate is required. The standard exam is the CIPLE (Certificado Inicial de Português Língua Estrangeira) offered by the University of Lisbon's CAPLE centre at testing locations worldwide. Exemptions apply if you completed two or more years of schooling in a Portuguese-language institution, hold a degree from a Portuguese university, or are under 10 years of age.
How long does it take to get Portuguese citizenship through a grandparent?
Realistic current processing times at IRN are 18 to 36 months from submission of a complete file. Applications submitted through Portuguese consulates face an additional 2 to 4 months before the file reaches IRN in Lisbon. Incomplete or incorrectly certified files are returned for correction and effectively restart the clock. Preparing the fullest possible file before submission is the most effective way to minimise delays.
What happens to my pending Sephardic Jewish citizenship application after the 2026 law?
The April 2026 nationality law abolishes the Sephardic route created by Law 30-A/2015. Applications formally received by IRN before the new law enters force may be assessed under the old law, but this is not guaranteed given the law contains no transitional provisions. Applicants with pending Sephardic applications should consult an immigration lawyer immediately to assess their options, including whether a judicial challenge to the retroactive application of the new law is viable.