Personal Loan Agreement Spain (Acuerdo de Préstamo Personal)

A Personal Loan Agreement Spain (Acuerdo de Préstamo Personal) is a formal written contract under which one party (the lender — prestamista) delivers a sum of money to another party (the borrower — prestatario) on the condition that the borrower returns an equal amount within an agreed period, governed principally by the Código Civil (Real Decreto de 24 de julio de 1889) Articles 1740 through 1757 on the mutuo (loan for consumption), the foundational loan contract in Spanish private law.

Article 1740 of the Código Civil defines the mutuo as a contract by which one party delivers to another party money or other fungible goods, with the obligation to return another equal quantity of the same kind and quality. Article 1753 establishes that where money is lent, the borrower owes only the nominal sum — the so-called nominalismo principle — unless the parties have agreed a higher or lower amount or an interest rate to account for value changes. Article 1755 establishes that interest is not owed unless expressly agreed in writing — therefore a personal loan is presumed to be interest-free (gratuito) unless the written agreement specifies an interest rate.

Spanish consumer credit law: where the lender is a professional credit institution or an entity that lends as part of its commercial activity, and the borrower is a consumer (consumidor) under Ley 1/2007 General para la Defensa de los Consumidores y Usuarios, the loan is additionally subject to Ley 16/2011, de 24 de junio, de Contratos de Crédito al Consumo, implementing Directive 2008/48/EC. Ley 16/2011 requires mandatory pre-contractual information including the TAE (Tasa Anual Equivalente) disclosure, a 14-day withdrawal right (derecho de desistimiento), and default interest capped at three times the legal interest rate. Private loans between individuals are not subject to Ley 16/2011 but remain subject to the Ley de Represión de la Usura of 23 July 1908 (Ley Azcárate).

The Banco de España publishes quarterly statistics on average consumer loan interest rates through its portal, which courts use as a benchmark in usury (usura) assessments. The Tribunal Supremo — Sala de lo Civil — has struck down interest rates significantly above market averages as usurious in landmark decisions including STS 628/2015 of 25 November 2015 (revolving credit) and STS 149/2020 of 4 March 2020, which established that a revolving credit rate of 26.82% TAE was usurious when the average market rate was around 20%.

For tax purposes, the Agencia Tributaria (AEAT) requires personal loan agreements to be declared using Modelo 600 (ITP-AJD) with the relevant Comunidad Autónoma tax administration within 30 working days of signing, even if the loan is exempt from tax under Article 45.I.B.15 of the ITP-AJD Texto Refundido. Interest income received by the lender must be declared as rendimiento del capital mobiliario under Ley 35/2006 del IRPF. Loans between related parties (family members, company shareholders) above €6,000 face AEAT scrutiny for potential undeclared gifts under Ley 29/1987 del Impuesto sobre Sucesiones y Donaciones, requiring clear documentation of the loan terms and repayment evidence.

The legal framework governing the Personal Loan Agreement Spain (Acuerdo de Préstamo Personal) in Spain draws on several key statutes and regulatory bodies. Under the Ley Cambiaria y del Cheque (Ley 19/1985), promissory notes and bills of exchange are governed in Spain. The Banco de España supervises banking under Ley 10/2014. The Comisión Nacional del Mercado de Valores (CNMV) regulates securities markets. The AEAT administers IVA (Ley 37/1992) and IRPF (Ley 35/2006). The Ley 3/2004 governs late payment in commercial transactions with statutory interest. Parties executing a Personal Loan Agreement Spain (Acuerdo de Préstamo Personal) in Spain should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Código Civil (Real Decreto de 24 de julio de 1889), Article 1740 sets the foundational requirements.

A Personal Loan Agreement Spain is required whenever two private parties — individuals or companies — agree that one will lend money to the other and both wish to document the arrangement with a binding written contract enforceable before the Juzgado de Primera Instancia under the Ley de Enjuiciamiento Civil (Ley 1/2000).

The agreement is needed when family members in Spain lend money to relatives — parents to children for home purchase deposit, siblings for business start-up, grandparents for education costs — and wish to establish that the transfer is a loan (préstamo) rather than a gift (donación) to avoid Impuesto sobre Sucesiones y Donaciones under Ley 29/1987 and prevent disputes about repayment expectations.

A personal loan agreement is required between friends or acquaintances in Spain who have agreed to lend or borrow money for any purpose — holiday, car purchase, home renovation — where both parties want documented terms and a clear repayment structure rather than relying on informal arrangements vulnerable to memory failure and relationship conflict.

The agreement is needed when a business owner (autónomo or administrator of an S.L.) lends personal funds to their company or borrows company funds in their personal capacity — transactions that must be documented in writing and disclosed to the Agencia Tributaria to avoid reclassification as dividend or hidden salary income under Ley 27/2014 del Impuesto sobre Sociedades and the IRPF transfer pricing rules for related-party transactions under Article 18 LIS.

A Personal Loan Agreement is required when an employer (empresario) advances salary to an employee (anticipo salarial) in an amount that exceeds one month's salary or that the parties wish to treat as a standalone loan — documented separately from the employment contract to clarify that it is not a salary supplement subject to IRPF withholding on disbursement.

The agreement is also needed when a person in Spain takes a loan from a foreign national or from a non-resident lender, where the written agreement provides documentary evidence for cross-border fund transfers reported to the Banco de España under Circular 4/2012 and to the AEAT on Modelo 720 (assets abroad) where the lender is non-resident.

Under the Ley Cambiaria y del Cheque (Ley 19/1985), promissory notes and bills of exchange are governed in Spain. The Banco de España supervises banking under Ley 10/2014. The Comisión Nacional del Mercado de Valores (CNMV) regulates securities markets. The AEAT administers IVA (Ley 37/1992) and IRPF (Ley 35/2006). The Ley 3/2004 governs late payment in commercial transactions with statutory interest.

A valid Personal Loan Agreement Spain under the Código Civil Article 1740 must contain the following essential elements to create an enforceable obligation, satisfy Agencia Tributaria documentation requirements, and support legal proceedings before the Juzgado de Primera Instancia if repayment is disputed.

Identification of Parties: Full legal names, DNI or NIE numbers, and residential addresses of both the lender (prestamista) and the borrower (prestatario). For married borrowers under the sociedad de gananciales community property regime (Article 1344 of the Código Civil), the spouse's consent may be advisable if the loan purpose is a family expense. Where a corporate entity is a party, the CIF and Registro Mercantil data of the company plus the identity and authority of the signing representative must be included.

Loan Amount and Disbursement: The principal amount (importe del préstamo) stated precisely in euros, the disbursement method — bank transfer from a specified IBAN (avoiding cash for amounts above €1,000 between businesses per Ley 7/2012), the disbursement date, and the borrower's written acknowledgment of receipt of the funds (recibo del capital). Where payment is by bank transfer, the SWIFT/BIC reference and the date of crediting the borrower's account serve as documentary proof of disbursement.

Interest Terms: A clear statement of whether interest (interés remuneratorio) is agreed — under Article 1755 of the Código Civil, interest is only owed if expressly agreed in writing, so a loan without an interest clause is free of charge. Where interest is agreed: the nominal annual interest rate (TIN), the basis for calculation (365-day year is standard in Spain), the frequency of payment (monthly, quarterly, or upon maturity), and the total interest amount over the loan term. The agreed interest rate must not be usurious (usurario) under the Ley Azcárate of 1908 — rates significantly above prevailing market rates published by the Banco de España risk judicial annulment.

Repayment Schedule: The loan term (plazo de devolución), the maturity date, the method of repayment — monthly instalments (cuotas mensuales), a single balloon payment at maturity (pago único al vencimiento), or a customised schedule — the amount of each instalment (quota mensual), and the bank account (IBAN) to which payments must be credited. A complete amortisation table (cuadro de amortización) setting out each payment date, the amount of interest, capital repaid, and outstanding balance should be attached as an annex.

Default Interest: The rate of default interest (interés de demora) applicable from the date of non-payment, calculated on the outstanding overdue amount. Article 1108 of the Código Civil provides that in the absence of agreement, default interest equals the legal interest rate (interés legal del dinero) set annually in the Ley de Presupuestos Generales del Estado — 3.25% for 2024. A contractual default rate above this is permissible but subject to usury limits and proportionality review by the Juzgado de Primera Instancia.

Early Repayment: Whether the borrower may repay early (amortización anticipada) and whether a prepayment fee (comisión de amortización anticipada) applies. For private individual-to-individual loans not subject to consumer credit law, these terms are freely agreed. For consumer loans regulated by Ley 16/2011, the prepayment penalty is capped at 0.5% of prepaid amount (Article 30 Ley 16/2011).

Governing Law and Jurisdiction: Explicit statement that the agreement is governed by Spanish law — principally the Código Civil — and that disputes shall be submitted to the Juzgado de Primera Instancia of the borrower's domicile for consumer disputes under Article 52.2 LEC, or the agreed court for commercial disputes. Reference to the Agencia Española de Consumo, Seguridad Alimentaria y Nutrición (AECOSAN) for alternative dispute resolution in consumer loan matters.

Forms-legal.com provides this Personal Loan Agreement Spain template as a practical reference. Even straightforward loans between private individuals benefit from legal review to confirm tax compliance and enforceability before the Juzgado de Primera Instancia.

Under the Ley Cambiaria y del Cheque (Ley 19/1985), promissory notes and bills of exchange are governed in Spain. The Banco de España supervises banking under Ley 10/2014. The Comisión Nacional del Mercado de Valores (CNMV) regulates securities markets. The AEAT administers IVA (Ley 37/1992) and IRPF (Ley 35/2006). The Ley 3/2004 governs late payment in commercial transactions with statutory interest.