Sole Director Agreement Spain (Acuerdo de Administrador Único)

A Sole Director Agreement Spain (Acuerdo de Administrador Único) is a corporate resolution and contractual document that formalises the appointment of a single natural or legal person as the exclusive administrator (administrador único) of a Spanish Sociedad de Responsabilidad Limitada (S.L.) or Sociedad Anónima (S.A.), in accordance with the Ley de Sociedades de Capital (Real Decreto Legislativo 1/2010, de 2 de julio — LSC). Article 209 of the LSC establishes that the management (gestión) and representation (representación) of a sociedad de capital corresponds to the administrative body (órgano de administración), which may take the form of a sole administrator, joint administrators, joint and several administrators, or a board of directors (consejo de administración) depending on what the company's statutes (estatutos sociales) provide.

The administrador único is the most common governance structure for small and medium-sized Spanish limited companies (pymes) because it concentrates decision-making authority in a single person, reducing administrative complexity while still complying with the LSC's requirements. Article 233.1 of the LSC grants the sole administrator full powers of representation of the company — the power to bind the company vis-à-vis third parties extends to all acts within the company's corporate purpose (objeto social) as defined in its estatutos, as well as acts connected thereto, regardless of whether they fall strictly within the objeto social, following the Tribunal Supremo's broad interpretation of corporate representation under Articles 233 and 234 LSC.

The appointment of an administrador único in Spain requires a resolution (acuerdo) of the Junta General (shareholders' meeting) under Article 214.1 of the LSC for a sociedad limitada, or a Junta General Ordinaria or Extraordinaria for a sociedad anónima. The appointment must be recorded in a public deed (escritura pública) authorised by a Notario público and registered in the Registro Mercantil Provincial where the company is domiciled, under Article 94.1 of the Reglamento del Registro Mercantil (RRM — Real Decreto 1784/1996). Until registration, the appointment is not effective against third parties under the principle of inoponibilidad established in Article 21 of the Código de Comercio.

The administrador único owes the company duties of diligence (deber de diligencia) under Article 225 LSC — required to act with the diligence of an orderly businessman (ordenado empresario) and a loyal representative — and duties of loyalty (deber de lealtad) under Article 227 LSC, which prohibit conflicts of interest and self-dealing without proper corporate authorisation. Breach of these duties triggers personal liability under Article 236 LSC, which establishes that directors are jointly and severally liable to the company, shareholders, and creditors for damages caused by acts or omissions contrary to the LSC, the company's estatutos, or general fiduciary duties.

Remuneration of the administrador único in Spain requires an express provision in the estatutos sociales stating that the position is remunerated (retribuido), specifying the remuneration system. Under Article 217 LSC as reformed by Ley 31/2014, the estatutos must specify whether remuneration consists of a fixed annual sum (remuneración fija), profit-sharing (participación en beneficios), variable remuneration linked to performance indicators, shares or share options, or other forms. Where the estatutos are silent, the position of administrador único is deemed honorary (gratuito) — a critical distinction that affects both social security contributions and income tax treatment through the Agencia Tributaria.

A Sole Director Agreement Spain is needed whenever a Spanish company constitutes or changes its administrative organ to the administrador único structure. The document captures both the corporate resolution and the terms of the appointment in a single enforceable instrument.

The agreement is required at company formation when the founding shareholders (socios fundadores) include in the escritura de constitución the appointment of the first administrador único, as required by Article 22 LSC for sociedad limitada constitutions. The Notario público incorporates this appointment in the public deed of incorporation, which is then registered in the Registro Mercantil.

A Sole Director Agreement is needed when a company transitions from a board of directors (consejo de administración) to a sole administrator structure — a change that requires a Junta General resolution modifying the estatutos sociales if they specify the governance structure, plus a new appointment deed registered in the Registro Mercantil.

The document is required when renewing the term of an existing administrador único. For sociedades anónimas, Article 221 LSC limits director mandates to a maximum of six years, renewable by successive Junta General resolutions. For sociedades limitadas, the default position under Article 221.2 LSC is that the administrador is appointed for an indefinite term unless the estatutos specify a fixed mandate.

A Sole Director Agreement is needed when the administrador único is a legal entity (persona jurídica) rather than a natural person — Article 212bis LSC requires the legal entity to designate a natural person (representante persona física) as its permanent representative to exercise the functions of administrator on its behalf, and this designation should be documented in the agreement.

The agreement is also required when defining the remuneration of the administrador único, particularly following the Agencia Tributaria's enhanced scrutiny of director remuneration structures after the Tribunal Supremo ruling on the so-called teoría del vínculo — which affects whether an administrator who is also a senior executive receives one remuneration or two under separate legal relationships.

Parties in Spain should prepare a Sole Director Agreement Spain (Acuerdo de Administrador Único) proactively rather than waiting for a dispute to arise. Courts interpret agreements based on the written terms rather than oral representations. Under the Ley de Sociedades de Capital (LSC) RDL 1/2010, the Registro Mercantil maintains the register of Spanish companies. The Código de Comercio 1885 governs commercial obligations. The Agencia Estatal de Administración Tributaria (AEAT) administers Impuesto sobre Sociedades (IS) under Ley 27/2014. The Comisión Nacional de los Mercados y la Competencia (CNMC) enforces competition law. The Código Civil governs general contractual obligations under Article 1255. Where the transaction involves regulated activities, prior approval from the relevant authority may be required before execution.

A valid Sole Director Agreement Spain under the Ley de Sociedades de Capital must contain the following essential elements to be enforceable and to satisfy Registro Mercantil registration requirements.

Company Identification: Full company name, company type (S.L. or S.A.), registered address (domicilio social), NIF (Número de Identificación Fiscal), and Registro Mercantil registration details — Provincial Registro, volume (tomo), folio (folio), and sheet (hoja) number. These details are required for the appointment deed to be registered and to verify that the appointment is consistent with the company's estatutos.

Shareholders' Resolution: A certified copy (copia certificada) or extract of the Junta General resolution appointing the administrador único, including the date of the meeting, quorum, votes in favour, and declaration that the resolution was adopted in accordance with the LSC and the company's estatutos. For sociedad limitada, Article 198 LSC requires the resolution to be adopted by simple majority of votes representing the share capital, unless the estatutos require a higher majority.

Administrador's Identification: Full legal name, DNI or NIE, tax identification number (NIF), domicile, and nationality of the appointee. Where the administrador is a legal entity, the legal entity's NIF, Registro Mercantil details, and the designation of the natural person representative under Article 212bis LSC must be included.

Scope of Powers (Poderes de Representación): A description of the administrator's representational powers, confirming that they include full representation of the company for all acts within and connected to its objeto social under Articles 233 and 234 LSC. Any limitations on representation powers — which are effective only as between the shareholders and the administrator, not against third parties acting in good faith under Article 234.2 LSC — should be noted.

Appointment Duration: For sociedad anónima, the specific term of the mandate (maximum six years under Article 221 LSC) and the renewal procedure. For sociedad limitada, whether the appointment is for an indefinite term or a fixed period as permitted by the estatutos.

Remuneration Terms: Whether the position is honorary (gratuito) or remunerated (retribuido). If remunerated, the amount, payment frequency, and remuneration system must be consistent with the estatutos sociales under Article 217 LSC. Social security treatment — whether the administrador is a trabajador autónomo (self-employed) contributing through the Régimen Especial de Trabajadores Autónomos (RETA) under Ley 20/2007 del Estatuto del Trabajo Autónomo, or a socio trabajador contributing through the Sistema Especial para Trabajadores por Cuenta Propia — must be addressed.

Directors' Duties Acknowledgement: An express acknowledgement by the administrador of their duties of diligence (Article 225 LSC) and loyalty (Article 227 LSC), including the prohibition on using company information for personal benefit, the duty to avoid conflicts of interest under Article 229 LSC, and the obligation to notify the company of any situation that could constitute a conflict under Article 228 LSC.

Acceptance of Appointment: The administrator's written acceptance of the appointment (aceptación del cargo), which is required before the appointment can be registered in the Registro Mercantil under Article 141 of the Reglamento del Registro Mercantil.

Forms-legal.com provides this Sole Director Agreement Spain template as a practical starting point. The appointment of an administrador único requires registration in the Registro Mercantil by a Notario público and should be reviewed by an abogado especialista in corporate law (derecho mercantil) to confirm full compliance with the LSC and the company's specific estatutos sociales.

Additional compliance elements for a Sole Director Agreement Spain (Acuerdo de Administrador Único) used in Spain include: Under the Ley de Sociedades de Capital (LSC) RDL 1/2010, the Registro Mercantil maintains the register of Spanish companies. The Código de Comercio 1885 governs commercial obligations. The Agencia Estatal de Administración Tributaria (AEAT) administers Impuesto sobre Sociedades (IS) under Ley 27/2014. The Comisión Nacional de los Mercados y la Competencia (CNMC) enforces competition law. The Código Civil governs general contractual obligations under Article 1255. Forms-legal.com provides this template as a starting point for Spain-compliant documentation.