Personal NDA Spain (Acuerdo de Confidencialidad Personal)

A Personal NDA Spain (Acuerdo de Confidencialidad Personal) is a binding private contract between two or more individuals — outside a formal employment or corporate structure — under which one party (parte divulgadora) shares sensitive personal, creative, financial, or business information with another party (parte receptora) on terms of strict confidentiality. The agreement is governed by Código Civil Article 1255, which enshrines the principle of freedom of contract (autonomía de la voluntad) allowing parties to establish any terms provided they are not contrary to law, public morals (buenas costumbres), or public order (orden público); by Ley 1/2019, de 20 de febrero, de Secretos Empresariales (LSE), which protects trade secrets and commercially valuable confidential information; and by Ley Orgánica 3/2018 (LOPDGDD) supplementing Reglamento (UE) 2016/679 (RGPD) where personal data is involved.

Personal NDAs in Spain arise in a wide variety of non-commercial and semi-commercial contexts: two individuals exploring a joint business venture (negocio conjunto) before forming a company, a creator sharing an unpublished literary or artistic work with a collaborator before registration with the Registro de la Propiedad Intelectual under Real Decreto Legislativo 1/1996 (Ley de Propiedad Intelectual — LPI), individuals discussing sensitive personal matters requiring legal or financial advice, or parties negotiating a private real estate transaction (compraventa privada) governed by Código Civil Articles 1445 through 1537 before involving a notario.

The Ley 1/2019 de Secretos Empresariales applies where the information shared has commercial value and the disclosing party has taken reasonable steps to protect its secrecy — even between two private individuals. Article 1 LSE does not restrict protection to corporate entities: an individual inventor, freelance professional, or entrepreneur sharing a business concept or technical know-how with another individual benefits from LSE protections if the information meets the three-part definition (secrecy, commercial value, reasonable protection steps). The Juzgado de lo Mercantil has jurisdiction over LSE infringement claims under Article 86 ter of the Ley Orgánica del Poder Judicial (LOPJ).

Where the shared information includes personal data — health information, financial records, family details, or other data identifying a natural person — the RGPD and LOPDGDD apply. The Agencia Española de Protección de Datos (AEPD) enforces data protection obligations on individuals as well as organisations where the processing of personal data goes beyond purely personal or household use (the so-called personal use exemption under RGPD Article 2.2.c does not apply to systematic or organised data sharing). Unauthorised disclosure of sensitive personal data in Spain may additionally trigger claims under the Ley Orgánica 1/1982, de 5 de mayo, de Protección Civil del Derecho al Honor, a la Intimidad Personal y Familiar y a la Propia Imagen (Right to Honour and Privacy Law), which provides a separate civil remedy for violations of personal privacy independent of RGPD.

For creative works — including unpublished manuscripts, artistic compositions, software, or audiovisual scripts — protection under the Ley de Propiedad Intelectual (RDL 1/1996) arises automatically upon creation without registration, but the author's identity and the date of creation may be difficult to prove without prior registration or contemporaneous documentation. A Personal NDA Spain combined with a dated digital record of the shared work provides evidence of the sharing relationship and the confidentiality terms agreed.

A Personal NDA Spain is needed whenever two or more individuals share sensitive information in a personal, creative, or pre-business context where neither party is acting in a formal corporate capacity and the standard employment or commercial NDA frameworks do not apply.

The agreement is needed when two friends or acquaintances are exploring the launch of a startup or joint business in Spain and one party shares a business concept, market research, or proprietary technical idea before any partnership agreement (contrato de sociedad) or company formation (constitución de sociedad limitada) has been completed before a notario.

A Personal NDA Spain is needed when a writer, musician, artist, or filmmaker shares an unpublished creative work — a literary manuscript, song lyrics, screenplay, or software prototype — with a potential collaborator, agent (agente literario or representante artístico), or producer, seeking to protect the work's confidential content before formal registration with the Registro de la Propiedad Intelectual or the Oficina Española de Patentes y Marcas (OEPM).

The agreement is needed when two individuals share sensitive financial or personal information — such as estate planning details, inheritance discussions, or personal investment strategies — in the context of a private negotiation, family mediation (mediación familiar under Ley 5/2012), or financial planning consultation not covered by a formal professional engagement letter.

A Personal NDA Spain is needed when an individual mentor or coach (coach, mentor, o asesor personal) shares or receives sensitive personal development information with a client outside a formal therapeutic or legal relationship, confirming that personal disclosures remain confidential between the parties.

The agreement is also needed when parties to a private real estate negotiation (compraventa privada) share financial capacity information, mortgage terms, or structural survey results before executing a preliminary sale contract (contrato de arras or contrato privado) under Código Civil Articles 1451 and 1454, to prevent either party from leveraging the other's disclosed financial position in negotiations with third parties.

Parties in Spain should prepare a Personal NDA Spain (Acuerdo de Confidencialidad Personal) proactively rather than waiting for a dispute to arise. Courts interpret agreements based on the written terms rather than oral representations. Under Spanish law, the Código Civil governs marriage (Article 66), divorce (Article 81), custody (Article 92), and maintenance (Article 142). The Ley Orgánica 1/1996 (LOPJM) protects minors. The Registro Civil records births, marriages, and deaths. The Ley 15/2015 de Jurisdicción Voluntaria governs non-contentious proceedings. The Ley Orgánica 1/1982 protects fundamental rights including image and privacy. Where the transaction involves regulated activities, prior approval from the relevant authority may be required before execution.

A valid Personal NDA Spain under Código Civil Article 1255 must contain the following essential elements to be binding and enforceable between private individuals.

Identification of Parties: Full legal names, DNI or NIE numbers, and current addresses of both the disclosing party (parte divulgadora) and the receiving party (parte receptora). Where a party is acting as a representative of another individual or entity, the basis of their authority (poder notarial or representation) must be stated. The parties' IBAN bank account details are not required but may be useful for payment of any agreed compensation.

Purpose of Disclosure: Clear and specific statement of the context in which the information is being shared — for example, evaluation of a potential business joint venture, collaboration on a creative project, personal financial planning discussion, or private real estate transaction. The purpose defines the limits of the permitted use and prevents the receiving party from exploiting the information outside the agreed context.

Definition of Confidential Information: Specific description of the information to be protected — business ideas, creative works, financial data, personal matters, technical know-how, or other identified categories. The definition may incorporate the Ley 1/2019 LSE Article 1 criteria for secretos empresariales where commercially valuable information is involved, and should specify whether oral disclosures as well as written materials are covered. Standard exclusions apply: information already in the public domain, information independently known to the receiving party, and information required to be disclosed by law or court order.

Obligations of the Receiving Party: The receiving party agrees to: (1) maintain strict confidentiality and not disclose the information to any third party without the disclosing party's written consent; (2) use the confidential information solely for the stated purpose; (3) not copy, reproduce, or store the information beyond what is necessary for the stated purpose; and (4) return or destroy all confidential materials upon the disclosing party's request or upon termination of the purpose.

Duration: The confidentiality obligation must have a defined term — typically 2 to 5 years from the date of disclosure, depending on the sensitivity and commercial value of the information. For information qualifying under Ley 1/2019 LSE, the contractual term supplements rather than limits the statutory protection, which continues as long as the information remains secret. For personal data under RGPD and LOPDGDD, confidentiality obligations continue for as long as the data is retained by the receiving party.

Privacy Clause: Where the confidential information includes personal data of the disclosing party or third parties, the receiving party acknowledges obligations under RGPD Article 5 (purpose limitation, data minimisation) and Ley Orgánica 1/1982 protecting personal privacy and dignity. The parties agree that personal information shared under the NDA will not be used, disclosed, or referenced in any public forum — including social media platforms (redes sociales) — without the disclosing party's express written consent.

Remedies: Reference to civil damages under Código Civil Articles 1101 and 1106 for breach of contract, statutory remedies under Ley 1/2019 LSE Articles 9 through 11 for trade secret misappropriation, and claims under Ley Orgánica 1/1982 for privacy violations. The parties may agree a liquidated damages clause (cláusula penal) under Código Civil Article 1152 — a pre-agreed sum payable upon breach — which courts will enforce unless it is manifestly disproportionate to the actual harm.

Dispute Resolution: Agreed method of resolving disputes — mediation under Ley 5/2012 (which parties should attempt before litigation), followed by jurisdiction of the Juzgado de Primera Instancia of the disclosing party's domicile for general civil claims or the Juzgado de lo Mercantil for trade secret claims under Ley 1/2019 LSE.

Forms-legal.com provides this Personal NDA Spain template for individuals sharing sensitive information in non-commercial contexts. For business-related disclosures, the Due Diligence NDA or Employee Confidentiality Agreement templates on forms-legal.com may be more appropriate. Legal advice from a Spanish abogado is recommended where significant financial interests or commercially valuable information is involved.

Under Spanish law, the Código Civil governs marriage (Article 66), divorce (Article 81), custody (Article 92), and maintenance (Article 142). The Ley Orgánica 1/1996 (LOPJM) protects minors. The Registro Civil records births, marriages, and deaths. The Ley 15/2015 de Jurisdicción Voluntaria governs non-contentious proceedings. The Ley Orgánica 1/1982 protects fundamental rights including image and privacy.