Flexible Working Hours Agreement Spain (Acuerdo de Flexibilidad Horaria)

A Flexible Working Hours Agreement Spain (Acuerdo de Flexibilidad Horaria) is a written agreement between an employer (empresario) and an employee (trabajador) under Article 34.8 of the Estatuto de los Trabajadores (Real Decreto Legislativo 2/2015, de 23 de octubre — ET), by which the parties agree on an adaptation of the worker's working time (adaptación de la jornada laboral) — including the distribution of hours, the shift structure, or the organisation of working time — to accommodate family conciliation needs (necesidades de conciliación de la vida familiar y laboral). The Acuerdo de Flexibilidad Horaria is distinct from the broader flexibilidad interna (internal flexibility) mechanisms used in collective redundancy prevention — it specifically addresses individual workers' rights to request schedule adaptation under the conciliation framework established by the Estatuto de los Trabajadores and the Ley Orgánica 3/2007 de Igualdad Efectiva de Mujeres y Hombres.

Article 34.8 ET was substantially reformed by the Real Decreto-Ley 6/2019, de 1 de marzo, de medidas urgentes para garantía de la igualdad de trato y de oportunidades entre mujeres y hombres en el empleo y la ocupación, which significantly strengthened workers' rights to request flexible working arrangements. Under the amended Article 34.8 ET, workers with family care responsibilities (hijos menores de 12 años, personas con discapacidad, cónyuge o familiar con enfermedad grave) have a right to request adaptation of their working time distribution and to request reductions of working time with proportional salary reduction (reducción de jornada). The employer must respond to these requests in writing within 30 days — if the employer denies the request, it must provide reasons (justificación de la denegación) and, where possible, offer alternative measures. Compliance is monitored by the Inspección de Trabajo y Seguridad Social (ITSS).

The Ley Orgánica 3/2007 de Igualdad Efectiva de Mujeres y Hombres (LOI) is the overarching framework for conciliation rights in Spain. Articles 44–46 LOI establish the right to work-life balance (derecho a la conciliación de la vida personal, familiar y laboral) as a gender equality measure — the Inspección de Trabajo y Seguridad Social monitors compliance with conciliation obligations as part of its Plan de Acción para la Igualdad in the workplace. Companies with 50 or more employees must have a Plan de Igualdad under Article 45 LOI (as reformed by RDL 6/2019 and Real Decreto 901/2020), which typically includes measures on flexible working, career progression for part-time workers, and co-responsibility in family care. The Registro de Planes de Igualdad of the Ministerio de Trabajo maintains registered equality plans.

The most common forms of working time adaptation available under the Acuerdo de Flexibilidad Horaria in Spain include: horario flexible (flexible working hours) with defined core attendance hours (horas de presencia obligatoria) and flexible entry/exit windows; jornada continuada (continuous working day without a mid-day break, typically 7:00–15:00 or 8:00–16:00) instead of the traditional partida (split schedule with a long lunch break); compressed working week (semana laboral comprimida) — working the weekly contracted hours in fewer days, for example 4 days of 10 hours instead of 5 days of 8 hours; and reducción de jornada (part-time schedule) under Article 37.5–7 ET for child care or family care, with proportional salary reduction.

The registro de jornada (daily working time record) obligation under Article 34.9 ET — introduced by Real Decreto-Ley 8/2019 — applies to all workers regardless of their working time arrangement, including those on flexible schedules. Employers must maintain daily records of each worker's start and end times and preserve them for 4 years, even where the worker has a flexible schedule. For workers with flexible entry/exit times, the registro captures the actual hours worked, not the nominal schedule. The Instrucción 1/2019 of the Inspección de Trabajo y Seguridad Social provides detailed guidance on acceptable registro de jornada methods, emphasising that purely manual self-reporting systems without any technological verification are inadequate for larger employers.

The Tesorería General de la Seguridad Social (TGSS) supervises social security contributions for part-time and reduced-hours workers — any change in hours under a flexible working agreement that alters the contribution base must be notified to the TGSS through the Sistema de Remisión Electrónica de Datos (RED). The Servicio Público de Empleo Estatal (SEPE) administers unemployment benefits (prestaciones por desempleo) and records working time data that may be relevant if an employee later claims benefits following a reducción de jornada arrangement.

Disagreements between employer and employee about working time adaptation requests under Article 34.8 ET are subject to a specific procedural framework under Article 139 of the Ley Reguladora de la Jurisdicción Social (Ley 36/2011 — LRJS) — the worker may bring a conciliation claim before SMAC and, if unresolved, before the Juzgado de lo Social in an urgent (preferente) procedure (procedimiento especial para la conciliación de la vida personal, familiar y laboral). The Juzgado may grant or modify the adaptation requested, having regard to the employer's organisational needs and the worker's family circumstances.

A Flexible Working Hours Agreement Spain is needed when an employee formally requests an adaptation of their working time distribution under Article 34.8 ET due to family care responsibilities — the employer and employee should document the agreed arrangement in writing to avoid subsequent disputes about the agreed schedule and the effective date of the adaptation before the Juzgado de lo Social.

An Acuerdo de Flexibilidad Horaria is required when an employee returning from maternity leave (permiso de maternidad), paternity leave (permiso de paternidad), or parental leave (permiso parental) under the ET and Ley Orgánica 3/2007 needs to transition to a modified working schedule to accommodate childcare arrangements — the written agreement documents the specific schedule, duration of the adaptation, and interaction with the standard contract terms registered with the Tesorería General de la Seguridad Social (TGSS).

A Flexible Working Hours Agreement is needed when a company wishes to implement a structured flexible working policy (política de flexibilidad) for a group of employees — rather than relying on informal arrangements, the employer documents the approved flexible working models and the conditions under which each model is available, creating transparency and equal access across the workforce and supporting compliance with the Plan de Igualdad obligations under Article 45 Ley Orgánica 3/2007.

An Acuerdo de Flexibilidad Horaria is required when the applicable sector convenio colectivo provides for flexible working arrangements supplementary to the Article 34.8 ET minimum rights — the agreement documents which convenio provision applies, the specific arrangement, and how it interacts with the standard working schedule. Convenios colectivos for sectors such as banking (convenio de banca), retail (convenio de grandes almacenes), and professional services frequently contain enhanced conciliation provisions beyond the statutory minimum.

A Flexible Working Hours Agreement is needed when a company implements a compressed working week (semana laboral comprimida) — for example, a 4-day working week pilot as promoted by the Spanish government's Ministerio de Trabajo — documenting the daily hours, shift patterns, annual leave interaction, and registro de jornada methodology under Article 34.9 ET.

An Acuerdo de Flexibilidad Horaria is required when an employee with a disability (trabajador con discapacidad) registered with the Servicio Público de Empleo Estatal (SEPE) requires reasonable accommodation (ajuste razonable) under the Ley General de Derechos de las Personas con Discapacidad (Real Decreto Legislativo 1/2013) in the form of a modified working schedule — the agreement documents the accommodation and protects both the employer and employee against claims of discrimination before the Juzgado de lo Social.

A Flexible Working Hours Agreement is needed when a company develops a Plan de Igualdad under Article 45 of Ley Orgánica 3/2007 (mandatory for companies with 50+ employees) and wishes to implement specific flexible working measures identified in the Plan as equality measures — the individual agreements with employees document implementation of the Plan's commitments and provide evidence for the ITSS compliance review. Failure to implement Plan de Igualdad commitments constitutes an administrative infraction under Real Decreto Legislativo 5/2000 (LISOS).

A valid Flexible Working Hours Agreement Spain under Article 34.8 of the Estatuto de los Trabajadores and the Ley Orgánica 3/2007 framework must contain the following elements to be enforceable and to comply with the registro de jornada obligation under Article 34.9 ET.

Identification of Parties: Full legal name, DNI/NIF, job title, and professional group (grupo profesional) of the employee, and full legal name, NIF/CIF, and authorised representative of the employer. Reference to the employee's standard employment contract, Social Security number (número de afiliación a la Seguridad Social — NASS), and the applicable sector convenio colectivo.

Basis for the Request: The specific family conciliation reason (razón de conciliación) underlying the flexibility request under Article 34.8 ET — care for child under 12 (hijo menor de 12 años), care for disabled family member (familiar con discapacidad), care for seriously ill family member (cónyuge o familiar con enfermedad grave), or other recognised conciliation need. This section protects the employee against the employer characterising the arrangement as a voluntary preference rather than an ET right enforceable before the Juzgado de lo Social.

Current Working Schedule (Jornada Actual): The employee's current contracted working hours (jornada contratada) — total weekly hours, daily schedule, shift rotation if applicable — as established in the employment contract and/or the applicable convenio colectivo and notified to the Tesorería General de la Seguridad Social (TGSS).

Adapted Working Schedule (Jornada Adaptada): A precise description of the new adapted schedule — start and end times for each day, core hours if flexible working applies, weekly hours total (must remain equal to contracted hours unless this is a reducción de jornada), and the specific days of attendance. For compressed weeks: the number of working days, daily hours, and the day(s) off. For reducción de jornada under Article 37.5 ET: the percentage reduction in hours and the proportional salary reduction.

Core Hours (Horas de Presencia Obligatoria): If the agreement implements flexible working (horario flexible) rather than a fixed schedule, the core hours during which the employee must be present or available — typically a mid-day window of 4–6 hours — and the flexible entry/exit bands at the start and end of the day within which the employee may choose their actual start and end times.

Duration of the Arrangement: The commencement date of the adapted schedule and, where applicable, the end date or the condition upon which the arrangement terminates (e.g., child reaching age 12, completion of caring responsibility, or return of the employee from parental leave). Open-ended adaptations should specify a review mechanism, typically an annual review aligned with the employer's Plan de Igualdad review cycle.

Effect on Salary and Social Security: Whether the adaptation involves any change in salary — for reducción de jornada under Article 37.5 ET, the proportional salary reduction must be explicitly stated; for pure schedule adaptation without hours reduction under Article 34.8 ET, confirmation that salary is unchanged. The notification obligation to the Tesorería General de la Seguridad Social (TGSS) through the RED system for any changes to the contribution base.

Registro de Jornada (Working Time Record): Acknowledgment of the employer's obligation under Article 34.9 ET to maintain daily working time records for the employee regardless of the flexible schedule arrangement, and the specific procedure for recording start and end times (digital time-tracking system, biometric control, or self-reporting). The record must be preserved for 4 years and made available to the Inspección de Trabajo y Seguridad Social (ITSS) and workers' representatives (representantes de los trabajadores) upon request under Article 34.9 ET.

Interaction with Overtime and Rest Periods: Rules on overtime (horas extraordinarias) for workers on flexible schedules — whether excess daily hours are compensated or carried forward; weekly rest (descanso semanal) under Article 37.1 ET (minimum 1.5 consecutive days); and the minimum daily rest (12 hours between working days — Article 34.3 ET) which applies regardless of flexible schedule arrangements.

Dispute Resolution: Reference to the Article 139 LRJS urgent (preferente) procedure for employment disputes about working time adaptation before the Juzgado de lo Social, after mandatory SMAC (Servicio de Mediación, Arbitraje y Conciliación) conciliation under Article 63 LRJS. The employer's obligation to respond to any modification request within 30 days under Article 34.8 ET and to provide written justification for any refusal.

Forms-legal.com provides this Flexible Working Hours Agreement Spain template as a starting point. Working time adaptation arrangements interact with the applicable convenio colectivo, the employer's Plan de Igualdad, and the employee's individual employment contract — every agreement should be reviewed by an abogado laboralista or gestor laboral to confirm compliance with all applicable sources of labour law and the Tesorería General de la Seguridad Social (TGSS) contribution requirements. The Flexible Working Hours Agreement Spain template at forms-legal.com provides a practical reference for documenting working time arrangements under the Estatuto de los Trabajadores.

Under the Estatuto de los Trabajadores (ET) RDL 2/2015, Spanish employment law governs contracts, dismissals, and working conditions. The Tesorería General de la Seguridad Social (TGSS) administers social security contributions. The Servicio Público de Empleo Estatal (SEPE) manages unemployment benefits. The Inspección de Trabajo y Seguridad Social enforces labour compliance. The Juzgados de lo Social hear employment disputes under the Ley Reguladora de la Jurisdicción Social (Ley 36/2011).