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Swiss Chinese Law Association — Geneva

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Legal Observatory / Everyday Rights

Explained Cross-Border Court judgment

Spanish Court Orders Maintenance Obligations for Mexican Surrogate Mother Following Filiation Non-Recognition

A Spanish court ordered a Mexican gestational surrogate with no genetic tie, no custody, and no contact rights to pay monthly child maintenance based on Spanish statutory rules that treat the woman who gives birth as the permanent legal mother.

What Changed

  • The Tribunal de Instancia de Alicante (No. 3) suspended a Mexican surrogate's exercise of parental responsibility while ordering her to pay €150/month in child maintenance.
  • The ruling follows Spanish Supreme Court decision STS 496/2025 affirming that maternal filiation is strictly determined by childbirth under Art. 10.2 Ley 14/2006.
  • Administrative DGSJFP Instructions of 28 April 2025 confirm that foreign birth certificates or surrogacy decisions are insufficient to establish filiation under Spanish law.

**Background and Overview of the Case**

In an unreported ruling dated 29 April 2026, the Family, Childhood and Capacity Section of the Tribunal de Instancia de Alicante (No. 3) in Spain ordered a Mexican gestational surrogate to pay €150 per month in child maintenance, along with half of extraordinary expenses, to a Spanish father. This order was issued even though the surrogate holds no custody, is denied contact rights, and has had the exercise of her parental responsibility suspended.

The underlying circumstances involve a Spanish father who had a child through a gestational surrogacy arrangement in Mexico using his own sperm and a donor egg. The gestational surrogate possesses no genetic link to the child. Born on 24 April 2024, the child traveled to Spain in January 2025 and has resided with the father since. An earlier 2024 decision by the same court in Alicante established the father's biological paternity and registered the child under standard Spanish civil-registry rules using both the father's and surrogate's surnames. In the April 2026 decision, acting upon the Prosecutor's request under Articles 154 and 158 of the Spanish Civil Code (CC), the court chose not to deprive the surrogate of parental responsibility (patria potestad) entirely, but suspended its exercise. It assigned exclusive custody to the father, denied the mother contact, and ruled that as the child's legal mother under Spanish law, she remains obligated to contribute to child maintenance.

**Spanish Legal Framework and Precedents**

The Alicante decision aligns with established Spanish jurisprudence concerning surrogacy arrangements contracted abroad. Under Article 10.2 of Ley 14/2006, Spanish law mandates that maternal filiation is determined strictly by childbirth. The Spanish Supreme Court reinforced this stance in judgment STS 496/2025 of 25 March 2025 (ROJ: STS 1262/2025), which involved a surrogacy contract from Tabasco, Mexico. In that case, despite contractual terms stating the surrogate was not the legal or biological mother and waiving custody, and despite both parties seeking to strike maternal filiation, the Supreme Court held that maternal filiation determined by childbirth is a mandatory rule that cannot be bypassed by agreement or by challenging filiation under Articles 131 and 139 of the Civil Code. The Supreme Court also declined to refer the matter to the Court of Justice of the European Union, finding no violation of Articles 19 and 20 TFEU, and cited its prior ruling (STS 1626/2024 of 4 December 2024) holding that foreign judgments attributing parentage to intended parents cannot be recognized in Spain on public-policy grounds.

Administrative practice mirrors this position. The Directorate-General for Legal Security and Public Faith (DGSJFP) Instruction of 28 April 2025—which rendered earlier 2010 and 2019 instructions ineffective—stipulates that foreign civil-status certificates, medical birth declarations, or foreign judicial parentage decisions are insufficient titles for registering surrogacy-born children. Registration requires standard legal mechanisms under Spanish law, namely biological filiation or adoption.

**Cross-Border Conflicts and Enforcement Challenges**

The judgment creates significant cross-border legal complexities, particularly regarding potential enforcement in Mexico. Under Spanish conflict of laws, filiation is governed by Article 9.4 CC (pointing to the child's habitual residence), while maintenance obligations are governed by the 2007 Hague Protocol under Article 9.7 CC. While press reports indicate the father has been described as resident in Alicante and as working in Switzerland (with the child holding a Swiss passport), nationality is not the decisive factor under these conflict rules.

If enforcement were sought in Mexico, proceedings would rely on the 1956 UN Convention on the Recovery Abroad of Maintenance, as Mexico is not bound by the 2007 Hague Child Support Convention, and the 1989 bilateral treaty between Spain and Mexico excludes maintenance. However, Mexican recognition faces public-policy obstacles, given that Mexican state-specific surrogacy rules and the surrogacy agreement itself may not recognize the gestational carrier as a legal mother. Furthermore, the pending European Union proposal on parenthood recognition would not resolve such cross-border issues, as it addresses recognition between EU Member States rather than parentage established in third countries like Mexico. The father has reportedly indicated he will not pursue enforcement of the maintenance order in Mexico.

**Human Rights Jurisprudence**

The ruling touches upon European Court of Human Rights (ECtHR) jurisprudence, including Mennesson v. France, Paradiso and Campanelli v. Italy, Valdís Fjölnisdóttir and Others v. Iceland, and the 2019 Advisory Opinion (P16-2018-001). While ECtHR case law primarily addresses intended parents seeking recognition of legal parentage, the Alicante decision introduces a novel dimension: whether legal motherhood can be attributed to a non-genetic gestational surrogate to impose ongoing financial maintenance obligations after excluding her custody and contact.

**Frequently Asked Questions**

*What did the Alicante court decide regarding the surrogate's maintenance duties?*

The court ordered the Mexican surrogate mother to pay €150 per month in child maintenance plus half of extraordinary expenses to the Spanish father, following the suspension of her parental responsibility and denial of contact rights.

*Why did Spanish law recognize the surrogate as the child's legal mother?*

Under Article 10.2 of Spanish Ley 14/2006 and Supreme Court precedent, maternal filiation is imperatively determined by childbirth, regardless of genetic links or contractual agreements to the contrary.

*Does the EU proposal on parenthood recognition affect parentage established in Mexico?*

No. The EU proposal on parenthood recognition is intended to govern recognition between EU Member States and expressly leaves recognition of parentage established in non-EU third countries to national law.

*Is the maintenance order expected to be enforced in Mexico?*

It is doubtful whether Mexican courts would recognize the maternal relationship or enforce the order, as it may conflict with Mexican public policy and state-specific surrogacy laws; additionally, the father has reportedly stated he will not seek enforcement.

Who May Be Affected

Legal professionals, cross-border families, surrogacy agencies, legal guardians, and courts dealing with international family law, surrogacy, and maintenance enforcement.

Cross-Border Context

Cross-border implications between Spain, Mexico, Switzerland, and the EU concerning conflict of laws (Art. 9.4 and 9.7 Spanish Civil Code), the 2007 Hague Protocol, the 1956 UN Maintenance Convention, and the draft EU proposal on parenthood recognition.

What to check next

  • Verify subsequent updates or appeals regarding the Alicante court ruling.
  • Monitor the progress of negotiations on the EU proposal on parenthood recognition.
  • Review official guidelines from the Spanish DGSJFP regarding foreign birth registrations.

This article provides general information and does not constitute legal advice. Consult the official text and obtain advice appropriate to your circumstances where needed.

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