Registering a British Child Born in Argentina and Getting Passports

A child born in Argentina can have documentation duties in both countries from the start. The practical order is to register the birth locally, obtain the child's first Argentine DNI, arrange an Argentine passport for international travel, establish any British citizenship claim and apply for the appropriate UK travel document. Optional UK consular birth registration sits alongside that sequence rather than replacing any Argentine step.

This guide covers the usual case of a child born in Argentina with a British parent. Surrogacy, adoption, disputed parentage, diplomatic status and citizenship claims through a British parent by descent can require case-specific advice. The rules governing nationality are separate from the administrative processes for civil registration, identity documents and passports.

1. Register the Birth in Argentina

Start with the Registro Civil for the place of birth. The hospital or clinic normally supplies the medical birth record used for registration, while the civil registry creates the official Argentine birth entry and certificate. Check every name, date, place of birth and parental detail before the entry is finalised.

Ask the registry how to obtain additional certified copies or digitally verifiable copies. The certificate will be needed for the DNI, passports and Argentine exit formalities. It may also support future school, healthcare and benefits procedures. Keep the original or authenticated copy required for travel separate from the copy submitted in any application.

The wider practical steps for a new household are covered in Moving to Argentina with Children.

2. Understand the Child's Argentine Nationality

Under Ley 346, article 1(1), every person born in Argentine territory is Argentine from birth regardless of the parents' nationalities. The statute contains a narrow exception for children of foreign ministers and members of foreign legations resident in Argentina.

For the ordinary Argentina-born child covered here, Argentine nationality therefore arises at birth. It does not depend on either parent being Argentine and does not wait for naturalisation. Parentage is relevant to a different route: the option available to certain children of Argentine citizens who are born outside Argentina.

Families potentially covered by the diplomatic exception should obtain advice specific to that status before applying for ordinary Argentine identity documents.

3. Obtain the Newborn's First DNI

After civil registration, apply for the child's first DNI. RENAPER's newborn DNI guidance says this step is necessary once the birth has been registered and that the first DNI is free.

Follow the current RENAPER instructions for the appointment, accompanying parent or legal representative, birth record and any additional evidence. Check the delivered DNI immediately. A spelling mismatch can cause difficulty across later passport and travel procedures.

The DNI establishes the child's Argentine identity for routine domestic administration. It is also the next practical document needed before arranging the child's Argentine passport.

4. Check Whether the Child Is British

A child born outside the UK is commonly British automatically when, at the time of birth, a legal parent was a British citizen otherwise than by descent. This often covers a parent who became British through birth in the UK, naturalisation or registration. The applicable rule can depend on the child's date of birth, how the parent obtained citizenship and the legal parentage provisions in force.

A British citizen by descent generally cannot transmit citizenship automatically to another generation born abroad. Registration routes may still exist in some circumstances. Use the official British citizenship guidance for people born abroad to identify the relevant route. If the answer depends on a grandparent, residence history, adoption, assisted reproduction or surrogacy, seek nationality advice before treating the child as automatically British.

Gather evidence showing the British parent's status at the date of birth. Depending on the claim, this can include a current or previous British passport, a full UK birth certificate, or a certificate of naturalisation or registration. The application-specific checklist determines what must actually be supplied.

5. Decide on UK Consular Birth Registration

Registering the birth with the UK authorities is optional. It creates a permanent consular record and allows the family to order a consular birth registration certificate. It does not confer British citizenship, replace the Argentine birth certificate or remove the need for a travel document.

Review the live eligibility rules, evidence, fees and delivery arrangements on GOV.UK's register a birth abroad service. Fees and processing arrangements can change, so use the amounts displayed when applying rather than an older quoted figure.

Some families value the additional UK record. Others proceed directly to the child's first passport because the Argentine certificate and citizenship evidence can support that application. Keep both procedures distinct when planning timing and document availability.

6. Apply for the Child's UK Travel Document

A British passport is the normal route for a British child travelling to the UK. Start with the live overseas passport tool, selecting Argentina, a first passport and the child option. The generated result controls the current application method, documents, photo process, fee, return charge and expected timescale.

Avoid assuming that the application is paper-based or that a generic document list is complete. Follow the Argentina-specific result shown when the application begins. It may request evidence about the child, parents, British citizenship claim, name and parental responsibility. Supply translations meeting HM Passport Office requirements when the generated instructions require translation of a Spanish-language document.

Check that names are consistent across the Argentine birth certificate, DNI and parental evidence. Where a legitimate difference exists, include the linking document or explanation requested by the passport instructions. Do not commit to non-refundable travel while an application is pending.

Current Argentina guidance states that British citizens travelling to the UK must carry a valid British passport or a certificate of entitlement: see Living in Argentina. A certificate of entitlement is the official alternative for a person who has the right of abode but lacks a UK passport, as explained in the right of abode guidance. It is a separate application and is placed in a valid foreign passport.

For genuinely urgent travel, contact the British Embassy or the relevant UK service to ask whether an emergency travel document is available. Eligibility must be confirmed for the individual case.

7. Arrange the Argentine Passport

The child's Argentine nationality makes the Argentine passport an immediate first-trip task. Official newborn guidance says a baby travelling abroad must have a current passport, except for travel to neighbouring countries where a DNI is accepted. The UK falls outside that DNI-only exception.

Once the first DNI is available, apply for the child's Argentine passport under the current RENAPER process. For a trip to the UK, families will commonly carry the Argentine passport for Argentine controls and the British passport for the child's UK status. If using a certificate of entitlement, carry the valid foreign passport containing that certificate.

8. Follow Argentina's Surname Rules

For a child whose filiation to both parents is established, Civil and Commercial Code article 64 allows the first surname of either parent to be used. The parents may request that the other parent's surname be added. If they cannot agree on which surname comes first, the civil registry determines it by a draw.

Discuss the intended full name and surname order with the Registro Civil before registration, especially if the family wants consistency with British records. Article 64 expressly permits adding the other parent's surname on request. Other later changes depend on the kind of amendment and the applicable procedure, so a blanket assumption that every change requires a court order is unsafe.

9. Prepare the Argentine Exit Documents

A passport alone does not satisfy every requirement for a minor leaving Argentina. Argentine Migraciones instructs parents to carry the child's original birth certificate, civil family book or equivalent proof of parentage. The authority also accepts the forms of original or authenticated evidence specified in its minor travel guidance.

If the child travels with only one parent, obtain the missing parent's permission or authorisation in the required form. Review the dedicated one-parent travel procedure well before departure. Different authorisation requirements can apply when the child travels alone or with another adult.

For the first UK trip, prepare a document folder containing:

• The child's valid Argentine passport
• The child's British passport, or a valid passport containing a certificate of entitlement
• The original or accepted authenticated proof of parentage required by Migraciones
• The absent parent's valid travel authorisation when travelling with one parent
• Any additional documents specified by the airline, destination or current official guidance

Not legal advice. Citizenship registration and passport evidence depend on the child's circumstances and current official requirements. Confirm the case with RENAPER, Migraciones and HM Passport Office as applicable.

Carry the documents in hand luggage and verify names across all records. Families planning the move can also use the pre-move paperwork checklist. After the first passport is issued, future applications can be planned with the UK passport renewal from Argentina guide.