Portuguese nationality by marriage or de facto union after the 2026 reform
The three-year relationship rule still opens the route, but the 2026 law rewrote the substantive barriers and opposition framework. A six-year marriage/union or a common Portuguese child now has a specific statutory effect.
Marriage to a Portuguese citizen does not make the foreign spouse Portuguese on the wedding day.
The Nationality Law creates a declaration route after the relationship has existed for more than three years.
The more interesting 2026 question is what happens between year three and year six.
Three years creates eligibility to declare. Six years changes how the effective-connection opposition rule works.
Portuguese citizenship by marriage 2026: The entry rule did not disappear
Current Article 3 says a foreigner married to a Portuguese national for more than three years may acquire Portuguese nationality by declaration made while the marriage continues.
A person in a de facto union for more than three years can use the route after a competent court has recognised the union.
The declaration must be made while the marriage/recognised union remains in force.
The 2026 reform added direct Article 3 filters For the reform-wide context behind these new filters, see the 2026 nationality-law change overview; this page remains limited to the marriage/de facto-union route.
Article 3(4) now states that acquisition through marriage/de facto union depends on the non-occurrence of the Article 6(1)(f)–(h) situations.
The corrected serious-crime rule in Article 6(f).
No security/defence threat under Article 6(g).
No applicable UN/EU restrictive measures under Article 6(h).
This is narrower and more precise than older summaries that said any offence punishable by three years automatically blocked the route.
Then Article 9 asks the connection question
Nationality acquired by effect of will remains subject to possible opposition.
Article 9(1)(a) now frames lack of effective connection to the national community by reference to the material parameters in Article 6(1)(c) through (i), including consideration of a conviction for insulting national symbols.
Article 9(1)(c) separately retains certain foreign public-office/non-compulsory military-service grounds.
The six-year rule
Article 9(2) now says there is no opposition to acquisition when the marriage/de facto union has lasted more than six years, except on the Article 6(f)–(h) serious-crime/security/sanctions grounds.
The same statutory protection applies where the couple has common children with Portuguese nationality. Where the common Portuguese child is relevant because the child was born in Portugal, the birth-in-Portugal nationality guide explains the child’s own nationality basis separately from the parent’s marriage route.
| Situation at application | What the statute does |
|---|---|
| Marriage/recognised union >3 years but not >6; no common Portuguese child | Route is open, but effective-connection opposition framework can still matter |
| Marriage/recognised union >6 years | Article 9(2) removes ordinary opposition, except Article 6(f)–(h) grounds |
| Common child/couple’s children with Portuguese nationality | Article 9(2) removes ordinary opposition, except Article 6(f)–(h) grounds |
Do you have to live in Portugal?
Article 3 does not impose a general minimum Portuguese-residence period as the entry condition for the marriage route.
Residence in Portugal can still be powerful evidence of connection in a case where the Article 9 opposition framework remains relevant.
Do not turn that practical evidence into a fake statutory rule such as ‘you must live in Portugal for X years to apply through marriage’.
Marriage and de facto union are not identical files
Marriage
The civil-status chain centres on the marriage registration and Portuguese spouse’s birth/civil record.
De facto union
Article 3 requires a judicial decision recognising the union of more than three years before the nationality declaration route is used.
Justice.gov’s current page also asks for a recent statement from the Portuguese partner confirming the union continues.
Foreign marriage: register/recognise the civil status first
A marriage celebrated abroad may need to be transcribed/registered into the Portuguese civil registry so that the Portuguese record reflects the marriage before the nationality application can move cleanly.
Do not discover a civil-registry mismatch only after paying for translations and criminal certificates.
The relationship evidence question
For a >3 but ≤6-year marriage/union without a common Portuguese child, a practical file should make the genuine connection legible.
Possible evidence can include residence/tax/Social Security history, shared Portuguese household, children/schooling, Portuguese language/education, employment or other concrete links. The exact evidential package should follow current IRN guidance and the case facts.
Avoid theatrical evidence. Ten years of genuine shared civil/residential history is more persuasive than a folder of staged photographs.
What the Justice profile page gets right — and where to use the statute
Justice.gov remains useful for the current document list: marriage certificate or judicial de facto-union decision, birth certificates, nationality proof, criminal records and route-specific declarations.
Some summary wording on official profile pages can lag a fast legal reform. For substantive criminal/opposition thresholds, use the current Articles 3, 6 and 9 of the Nationality Law.
The marriage-route audit
Confirm more than three years of marriage or judicially recognised de facto union.
Ensure the Portuguese civil registry correctly reflects the relevant civil status.
Identify whether Article 9(2) applies because the relationship exceeds six years or the couple has common Portuguese-national children.
Prepare current criminal records required by the filing procedure.
If ordinary opposition remains relevant, build real evidence of effective connection rather than relying on relationship duration alone.
Check the current IRN/Justice document list immediately before filing. If your claim is based on ancestry instead of relationship, use the Portuguese-grandparent nationality guide because the civil-status chain and substantive test are different.
Sources and further reading
Diário da República — current Nationality Law — Articles 3, 6 and 9 after the 2026 reform.
Diário da República — 2026 reform — Changed Article 3 and the marriage/union opposition framework.
Diário da República — Rectification n.º 17/2026/1 — Corrected the Article 6(f) criminal threshold.
Justice.gov — Married/de facto union with Portuguese citizen — Current route/document logistics; statutory reform text controls in case of mismatch.
