Personal Loan for Use Agreement Spain (Acuerdo de Comodato Personal)

A Personal Loan for Use Agreement Spain (Acuerdo de Comodato Personal) is a formal written contract establishing a comodato — the gratuitous loan of a non-fungible item (cosa no fungible) from one person (the comodante, or lender) to another (the comodatario, or borrower) for a specific period or purpose, after which the borrower must return the exact same item in the same condition as received. The comodato is regulated by Articles 1740 through 1752 of the Código Civil (Real Decreto de 24 de julio de 1889), which define it as one of the two forms of personal loan in Spanish civil law — the other being the préstamo de consumo (mutuo), which transfers ownership of fungible goods like money or grain. In the comodato, ownership and title never transfer — the comodante retains full dominio (ownership) throughout, and the comodatario has only the use and enjoyment (uso) of the object for the agreed purpose.

The essential distinguishing feature of the comodato under Article 1740 Código Civil is its gratuity (gratuidad) — the loan is free of charge, without any consideration or rent. If a payment is agreed, the contract is reclassified as a lease (arrendamiento) under Articles 1542 through 1600 Código Civil. The comodato is therefore a contract of pure liberality, reflecting a personal or familial relationship of trust between the parties — a friend lending a vehicle, a family member lending a property for temporary occupation, or a company lending equipment to an employee for home working are all classic comodato scenarios in Spain.

The object of the comodato must be a cosa no fungible — something that can be identified individually and returned as the same item, as opposed to fungible goods (cosas fungibles) like money or grain that are consumed upon use. Under Article 1741 Código Civil, the comodatario may use the object only for the purpose established by the agreement or, in the absence of an agreed purpose, for the use corresponding to the nature of the thing. The comodatario may not lend the object to a third party (no puede prestar el bien a un tercero) without the comodante's express written consent under Article 1749 Código Civil — any unauthorised sub-lending terminates the comodante's obligations and generates liability for the comodatario.

The comodatario's primary obligation under Article 1744 Código Civil is to preserve the item with the diligence of a good pater familias — exercising the same care over the borrowed item as a reasonable, prudent person would over their own property. The comodatario bears liability for loss or deterioration of the item caused by their negligence (culpa) or through use beyond the agreed purpose (uso extralimitado) under Article 1745 Código Civil. However, the comodatario is not liable for the ordinary wear and tear (deterioro ordinario) caused by authorised use under Article 1746 Código Civil. For items of high sentimental or financial value, the agreement should specify the condition at loan commencement and include photographic documentation to assist in any later liability assessment.

Termination of the comodato is governed by Articles 1748 through 1752 Código Civil. If a fixed duration is agreed, the comodante may not demand return of the item before expiry unless an urgent and unexpected need arises under Article 1749 Código Civil (precario exception). If no duration is agreed, the contract is presumed to be a precario (loan at will) under Article 1750 Código Civil, and the comodante may demand return at any time. The comodatario's heirs, if they were unaware of the loan, are treated as acting in good faith if they sell the item — the comodante's remedy is then against the estate for the item's value under Article 1752 Código Civil.

From a tax perspective, the comodato of a property in Spain has significant Impuesto sobre la Renta de las Personas Físicas (IRPF) implications for the comodante under Ley 35/2006. The Agencia Tributaria considers that a property owner who lends their property for free to another person — even a family member — must impute income equivalent to 2% of the property's cadastral value (valor catastral) per year (1.1% for properties with recently revised cadastral values) as rendimiento de capital inmobiliario under Article 87 Ley 35/2006, in the same way as an unoccupied property. This imputed income must be declared in the annual Modelo 100 IRPF return regardless of whether any actual rent is received.

A Personal Loan for Use Agreement Spain is required whenever one person allows another to use a valuable or identifiable object — a vehicle, property, equipment, artwork, or other personal item — for a period of time without charging rent or payment, and the parties want a written record of the terms, the item's condition, and the return obligation.

The agreement is needed when a parent lends their adult child a vehicle for an extended period — without a written comodato, the child's insurance coverage may be disputed if an accident occurs, since most Spanish motor insurance policies (pólizas de seguro de vehículos) require the habitual user of the vehicle to be named or the use to be covered under the policy conditions. The comodato serves as evidence of the authorised use for insurance purposes.

A formal Acuerdo de Comodato Personal is required when a person allows a family member or friend to live in their property for free — without a written agreement establishing the comodato or precario relationship under Código Civil Article 1750, the occupying party may assert an implied lease or other possessory claim that complicates recovery of the property when needed. The written comodato clarifies the gratuitous nature of the occupation and the comodante's right to demand return under Article 1749.

The agreement is needed when a company lends equipment — laptops, tools, machinery, or specialised instruments — to an employee for use at home under a teletrabajo arrangement governed by Ley 10/2021 de Trabajo a Distancia, which requires the employer to provide the necessary equipment for remote work and creates an explicit comodato relationship for the equipment provided.

A Personal Loan for Use Agreement is required when valuable personal property — artwork, jewellery, antiques, musical instruments, or sports equipment — is lent for an exhibition, event, or temporary use, and the lender needs a written record of the item's condition, an agreed return date, and clear liability allocation in case of loss or damage.

The agreement is needed when a property comodato has tax implications — the comodante must document the gratuitous loan to support the IRPF imputación de renta position under Ley 35/2006 Article 87, and a written agreement provides clear evidence of the start date, duration, and gratuitous nature of the arrangement for the Agencia Tributaria.

A formal agreement is required when the borrowed item is encumbered — for example, a vehicle subject to a leasing contract or a property subject to a mortgage — where the lender must verify that the comodato is permitted under the terms of the existing financing arrangements and does not trigger any breach of the lender's obligations to the financial institution.

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.

A valid Personal Loan for Use Agreement Spain under Código Civil Articles 1740 through 1752 must contain the following essential elements to establish a clear and enforceable comodato relationship.

Identification of Parties: Full legal names, DNI/NIE, and residential addresses of both the comodante (lender) and the comodatario (borrower). For legal entities acting as comodante (e.g. a company lending equipment to an employee), the CIF and registered address of the entity and the name of the authorized representative must be included.

Description of the Loaned Item: A precise description of the cosa no fungible being loaned — for a vehicle, include make, model, year, registration plate (matrícula), and chassis number (número de bastidor); for a property, include the full cadastral reference (referencia catastral), address, and any mortgage or other encumbrances; for equipment, include serial numbers, model numbers, and specifications; for artwork or personal property, include a detailed physical description and estimated value. A photographic record attached to the agreement significantly reduces disputes about pre-existing damage.

Condition at Delivery: A description of the item's condition at the moment of delivery (estado de la cosa al momento de la entrega) — any existing defects, wear, or damage must be documented to establish the baseline against which the comodatario's liability for deterioration under Article 1744 Código Civil will be assessed. The comodatario's signature on the condition description constitutes acknowledgment.

Purpose of Use: The specific authorised purpose for which the comodatario may use the item, under Article 1741 Código Civil. Use beyond the agreed purpose is a material breach entitling the comodante to demand immediate return and triggering the comodatario's liability for any resulting damage under Article 1745. For a vehicle, specify permitted uses (e.g. personal use only, not commercial transportation). For a property, specify permitted occupation (e.g. residential use by borrower only, not sub-letting).

Duration: The agreed loan period — start and end dates — or, if the loan is for an indefinite purpose, a statement that the loan is a precario under Article 1750 Código Civil terminable by the comodante at any time with reasonable notice. A defined end date protects the comodante's right to recover the item on a fixed date under Article 1748.

Gratuity: An express statement that the loan is gratuitous — no rent, fee, or consideration is paid or received. This is the essential characteristic of the comodato under Article 1740 Código Civil — its presence distinguishes the agreement from an arrendamiento (lease) which would require registration and generate different tax and legal consequences.

Maintenance and Care Obligations: The comodatario's obligation to maintain the item with the diligence of a good pater familias under Article 1744 Código Civil, to bear ordinary running costs of use (e.g. fuel, small maintenance for a vehicle; utility bills for a property), and to promptly notify the comodante of any damage, malfunction, or third-party claims affecting the item.

Insurance: Where applicable, a clause confirming that the comodatario will maintain or be covered by adequate insurance for the loaned item during the loan period — motor insurance for a vehicle, home contents insurance for equipment lent for home use, or a specific rider on the comodante's existing policy covering the loaned use.

Prohibition on Sub-Lending: The comodatario's express obligation not to lend, sub-let, or allow third parties to use the item without the comodante's prior written consent, under Article 1749 Código Civil. Breach of this prohibition entitles the comodante to demand immediate return.

Return: The comodatario's obligation to return the exact same item on the agreed date or upon the comodante's request (for precario loans), in the same condition as received less ordinary authorised wear and tear, at a specified location (the comodante's address, the original delivery location, or otherwise agreed). The cost of return delivery is borne by the comodatario unless agreed otherwise.

Forms-legal.com provides this Personal Loan for Use Agreement Spain template as a practical starting point. For comodatos of high-value property or complex arrangements — particularly property comodatos with IRPF implications — review by a qualified abogado or asesor fiscal is recommended.

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.