Spanish Citizenship by Option
At a glance
Spanish nationality by option is a declaration route for the limited cases in Article 20 of the Civil Code. Some categories have strict two-year deadlines, and the separate Democratic Memory Law window is closed to new requests.
- Type
- Citizenship registration
- Registration fit
- People who may have a direct registration right
- Core records
- Records showing the specific registration right
- What to know
- The exact Article 20 category, evidence, and any deadline control the result
- What it gives
- Once a valid option is completed and registered, the person becomes Spanish.
- Main limit
- It is not a general ancestry route for any Spanish grandparent.
Summary
Spanish nationality by option is a declaration-based route for the limited cases in Article 20 of the Civil Code. It is not a general right for everyone with a Spanish parent or grandparent, and it is different from being Spanish automatically by origin.
The current permanent Article 20 categories are:
- a person who is or was under the parental authority (patria potestad) of a Spanish citizen;
- a person whose father or mother was originally Spanish and born in Spain; and
- a person whose Spanish parentage or birth in Spain was established only after age 18, or who was adopted by a Spanish citizen as an adult, in each case under the special two-year option.
The separate option under the Democratic Memory Law stopped accepting new in-time appointment requests on 22 October 2025. People with official proof that they requested an appointment within the deadline may still present or complete that pending process under consular instructions; the closed program is not a new route in 2026.
Eligibility
Under a Spanish citizen's parental authority
This category often concerns a minor whose parent became Spanish while the child remained under that parent's legal authority. The option is exercised by the appropriate representative or by the child with assistance depending on age. The ordinary deadline is generally two years after emancipation or reaching 18, although capacity and earlier-representation rules can change who declares and when.
Parent originally Spanish and born in Spain
A person whose father or mother was both originally Spanish and born in Spain can opt without an age limit under Article 20.3. This is not satisfied merely because a grandparent was Spanish, a parent later naturalized, or a parent was originally Spanish but born outside Spain.
Late determination or adult adoption
If Spanish parentage or the relevant birth in Spain is determined only after the person turns 18, Article 17.2 gives a two-year period from that determination to opt for Spanish nationality of origin. If a Spanish citizen adopts a person who is already 18 or older, Article 19.2 gives two years from the adoption. A child adopted by a Spanish citizen before 18 instead acquires Spanish nationality of origin from the adoption and does not need this option route.
Evidence and declaration
The exact evidence depends on the category but usually includes the applicant's full birth record, the Spanish parent's birth and nationality records, custody or parental-authority decisions, adoption or parentage judgments, and identity records. Foreign records often need an apostille/legalization and official Spanish translation. Historical Spanish records may be needed to prove that a parent was Spanish of origin, not merely Spanish later.
The declaration is made through the competent Civil Registry in Spain or Spanish consular Civil Registry abroad. Articles 20 and 23 govern who may declare, representation/authorization for a child, the oath or promise for a person over 14, any required renunciation declaration, and registration.
What This Route Allows
Once a valid option is completed and registered, the person becomes Spanish. Nationality obtained under the late-determination and adult-adoption categories is nationality of origin. The classification of other option cases depends on the legal basis and matters for some future loss and transmission questions.
After registration, the person can request a Spanish birth-registration certificate and then Spanish identity/passport documents through the appropriate authority. A minor child's option does not automatically make siblings or descendants Spanish; each person's basis must be assessed.
What This Route Is Not
- It is not a general ancestry route for any Spanish grandparent.
- It is not needed when the person was already Spanish by origin at birth or acquired origin nationality through adoption before 18.
- It is not the residence-based naturalization process and has no general residence-period requirement.
- It does not revive the closed Democratic Memory Law window for a person who did not make the required in-time request.
- A parent's Spanish passport alone may not prove that the parent was originally Spanish and born in Spain.
Next Steps
- Build a dated family tree showing each birth, nationality event, adoption, custody/parental-authority event, and Civil Registry registration.
- Identify the exact Article 20 category before collecting documents.
- Check the deadline: especially the two-year rules for late parentage, adult adoption, and many parental-authority cases.
- Obtain literal birth records and the Spanish parent's records proving place of birth and nationality of origin where required.
- Ask the competent Civil Registry or consulate for its current option checklist and appointment process.
- Legalize/apostille and translate foreign records as instructed, then complete the declaration and registration formalities.
- If relying on the Democratic Memory Law, retain the dated CSV or other official proof of an in-time appointment request and follow that consulate's pending-case instructions.