Arbitration and Mediation in Spain

Alternative Dispute Resolution in Spain: Overview

Spain offers two primary alternative dispute resolution (ADR) mechanisms for commercial disputes:

• Arbitration: A private, binding process where a neutral arbitrator or tribunal hears the dispute and issues an enforceable award (laudo arbitral). The award has the same legal force as a court judgment.
• Mediation: A voluntary, non-binding process where a neutral mediator facilitates dialogue between parties. Any settlement reached is only binding if formalised in a notarial deed or court-approved agreement.

ADR is increasingly preferred in commercial disputes — particularly those involving international parties — for reasons of speed (relative to Spanish courts), confidentiality, party autonomy, and the international enforceability of arbitral awards under the New York Convention.

Arbitration in Spain

Legal Framework

Spain’s arbitration law is Ley 60/2003 de 23 de diciembre de Arbitraje, substantially based on the UNCITRAL Model Law on International Commercial Arbitration. The law:

• Recognises both domestic and international arbitration
• Allows full party autonomy in selecting rules, seat, language, number of arbitrators
• Restricts court intervention to defined circumstances (appointment of arbitrators, provisional measures, enforcement)
• Establishes the Madrid Courts as the supervisory courts for national-seat arbitrations (with the Provincial Courts and Audiencia Provincial of Madrid handling arbitration proceedings)

The Arbitration Agreement (Convenio Arbitral)

Arbitration is based on the parties’ consent expressed in an arbitration clause (cláusula arbitral) in a contract or a submission agreement (compromiso arbitral) after a dispute arises. Requirements:

• Must be in writing (or by reference to rules that provide for arbitration)
• Must identify the dispute or category of disputes to be referred to arbitration
• Does not need to specify the institution, number of arbitrators, or seat — these can be agreed later or default rules apply

An arbitration clause in a commercial contract is binding and the courts will dismiss any litigation brought in breach of it (save for provisional measures or clearly non-arbitrable matters).

Arbitrability

Most commercial disputes are arbitrable in Spain. The law excludes matters that cannot be validly disposed of by the parties (materias de libre disposición). Non-arbitrable matters include:

• Family law status questions (divorce, child custody)
• Insolvency proceedings (concurso de acreedores)
• Consumer contract disputes (where mandatory court jurisdiction applies — though arbitration by mutual post-dispute agreement is possible)
• Employment disputes (specific separate labour arbitration regime applies)
• Criminal matters

Commercial disputes involving companies — contracts, shareholding disputes, IP infringement, debt claims, M&A representations, joint venture disagreements — are generally fully arbitrable.

The Arbitral Tribunal

Parties may choose:

• A sole arbitrator
• A three-member tribunal (each party appoints one; the two party-appointed arbitrators, or the institution, appoints the chair)

Arbitrators must be independent and impartial. They must disclose any circumstances that could give rise to justified doubts about their impartiality. Challenges to arbitrators are resolved by the institution (in institutional arbitration) or the courts (in ad hoc arbitration).

Institutional Arbitration

Spain hosts several arbitration institutions:

Foreign institutions (ICC, LCIA, AAA/ICDR, SCC) are fully valid choices for arbitrations with seat in Spain. The seat (sede arbitral) determines the supervisory courts and the lex arbitri; the institution’s rules govern procedure.

The Arbitration Procedure

1. Filing of request (solicitud de arbitraje or demanda de arbitraje)
2. Tribunal constitution: Arbitrators appointed per agreed rules
3. Preliminary proceedings: Scope of dispute, procedural calendar, document production
4. Written pleadings: Claimant’s memorial, Respondent’s answer, optional further rounds
5. Hearing: Witness and expert examination (if any)
6. Deliberation and award: The tribunal issues the award within the deadline set by institutional rules or agreed by parties

Typical institutional arbitration (ICC or CAM): 18–30 months from filing to award for complex disputes. Expedited procedures are available and typically conclude in 6–9 months.

Enforcement of Arbitral Awards

A Spanish domestic arbitral award is enforced in the same way as a court judgment — by application to the Juzgado de Primera Instancia or Juzgado de lo Mercantil for coercive enforcement.

A foreign arbitral award is enforced in Spain through the exequatur procedure, governed by the New York Convention (1958) and Spanish civil procedure law. The competent court for exequatur is now the Tribunal Superior de Justicia of the relevant autonomous community (reformed in 2015). Grounds for refusal are narrow and strictly construed: procedural irregularity, lack of proper notice, non-arbitrability, violation of public policy (ordre public).

Annulment of Awards

A party may seek annulment (acción de anulación) of a Spain-seat award before the Tribunal Superior de Justicia. Grounds (Article 41 Ley 60/2003):

• Invalidity of the arbitration agreement
• Lack of proper notice of the arbitration
• Matters beyond the scope of the arbitration agreement decided by the award
• Procedural irregularity causing material prejudice
• Non-arbitrability of the dispute
• Violation of public policy

Spain’s courts have historically maintained a pro-arbitration stance and rarely annul awards on substantive grounds.

Mediation in Civil and Commercial Matters

Legal Framework

Mediation is governed by Ley 5/2012 de 6 de julio de mediación en asuntos civiles y mercantiles, transposing EU Directive 2008/52/EC. The law applies to civil and commercial disputes where the parties may freely dispose of their interests.

Key Features

• Mediation is voluntary: neither party can be compelled to enter mediation.
• The mediator facilitates communication and negotiation but does not decide.
• Mediation is confidential: discussions cannot be used as evidence in subsequent proceedings.
• Suspension of limitation periods (prescripción) from the initiation of the mediation procedure.

Enforceability of Mediated Agreements

A mediated settlement agreement becomes enforceable through:

• Elevation to a notarial deed (escritura pública) before a Spanish notary — the deed is directly executory
• Approval by a court if proceedings are ongoing

EU Directive 2023/1197 (implementing the UN Singapore Convention for cross-border commercial mediation settlements) will further facilitate cross-border enforcement of mediated settlements.

Frequently Asked Questions

Is there a mandatory mediation step before arbitration in Spain? Not in general commercial arbitration. Some sector-specific and consumer regulations require prior mediation or conciliation. Employment and labour disputes require prior administrative conciliation before SMAC (separate from civil/commercial mediation).

Can provisional measures be sought from Spanish courts during arbitration? Yes. Article 11bis Ley 60/2003 allows courts to grant provisional or precautionary measures even when the parties have agreed to arbitration. Parties may also seek provisional measures from the arbitral tribunal once constituted.

Is arbitration confidential in Spain? Confidentiality is not explicitly imposed by the Ley 60/2003 but is typically established by institutional rules (e.g., CAM Rules, ICC Rules) and/or the arbitration agreement. Most institutional rules provide for confidentiality of proceedings and the award.

Can a Spanish company be compelled to arbitrate against its will? Only if it has agreed to an arbitration clause in a contract. Non-signatory parties cannot be compelled to arbitrate (with narrow exceptions based on the “group of companies” doctrine, agency, assignment, etc.). Courts have jurisdiction over any dispute where no valid arbitration agreement covers the parties.

What are the costs of arbitration compared to court litigation? Institutional arbitration fees in Spain range from approximately EUR 10,000–50,000 in arbitrator fees for a mid-size commercial dispute, plus legal costs. Spanish court litigation for commercial disputes is typically cheaper in direct costs but significantly slower (first instance judgments: 2–4 years; appeals: further 2–3 years). International parties often prefer arbitration for confidentiality and neutrality even where cost is higher.