Portuguese Nationality Through Legal Residence in Portugal (Nacionalidade portuguesa por viver legalmente em Portugal)
Blank form to apply for naturalisation based on legal residence in Portugal. Comes with an explanation of the fields.
Official form: Modelo 6.1 · Instituto dos Registos e do Notariado
What it is for
- Applying for Portuguese nationality by naturalisation
- Presenting legal residence as the grounds for the application
What it is
This is IRN Form 6.1 for people applying for nationality by naturalisation on the grounds of legal residence. It gathers the applicant's personal and residence details. It is not the form for descendants of Portuguese citizens, and the application alone does not mean approval.
What you receive
You receive the official blank PDF form, with an explanation of what it is for. The Titus assistant answers your questions about filling it in. You can combine it with other documents in the same request, with a single payment. We do not ask for any password for forms.
The assistant explains; it does not fill in or submit anything on your behalf. Do not type passwords or third parties' data.
Things to note
The form is supplied unfilled; the applicant fills it in and signs it. The requirements, such as length of residence and proof of integration, should be confirmed with the competent office. Titus Docs does not submit the application or guarantee that it will be accepted.
Frequently asked questions
How long do I need to have been resident?
The law sets conditions that may change. Please check the current requirement with the registry office; the Titus assistant helps you understand what the form asks, but does not decide eligibility.
Can I apply if my status is irregular?
The form is based on legal residence, so that requirement must be met.
Related documents
Blank form for people who live legally in Portugal and hold no nationality of any country to apply for naturalisation.
Portuguese Nationality for an Adult Grandchild of a Portuguese Citizen (Nacionalidade portuguesa para neto de português – maior)Blank form for an adult to apply for Portuguese nationality as the descendant of a Portuguese grandfather or grandmother. Comes with a filling-in guide.
Text reviewed in November 2026.