Spain short-term rental regulation and SDEP status

What this means

Spain has a national model for short-term rental data exchange through the Ventanilla Unica Digital.

The state-level Registro Unico registration-number procedure in Royal Decree 1312/2024 has been partly annulled by the Tribunal Supremo, so registration-number workflow details now need to be read alongside regional/local tourism registers and any replacement national arrangements.

The Ministry of Housing and Urban Agenda remains the public source for the Ventanilla Unica Digital data-exchange model, while platform reporting duties and Ministry contact/onboarding routes remain visible in public materials.

Implementation status

Royal Decree 1312/2024 created both the Registro Unico de Arrendamientos procedure and the Ventanilla Unica Digital de Arrendamientos data-exchange layer.

Tribunal Supremo judgments published in BOE in June 2026 annul the decree provisions that regulate the state Registro Unico procedure and the obligation to obtain a national register number through the Property or Movable Property Register before advertising short-term rentals on online platforms.

The Consejo General del Poder Judicial summary of judgment 620/2026 says the rulings do not annul the Ventanilla Unica Digital data-exchange provisions, online-platform data-transmission obligations, or statistical-data transmission layer.

The official Ministry portal still presents the Ventanilla Unica Digital as available from 2 January 2025 with provisions taking effect on 1 July 2025 after a technology/functionality adaptation period.

Order VAU/653/2025 defines platform data-transmission deadlines and model. Order VAU/1560/2025 defines an annual host-side information model and XBRL taxonomy.

Monthly reporting is expected for regular platforms. Microplatform alternatives include quarterly transmission and either manual Ministry-portal reporting or machine-to-machine integration.

The Spanish system does not replace autonomous-community or municipal tourism, housing, licensing, inspection, and sanction regimes.

Technical interface

The official Ministry platform page states that online platforms must report activity records monthly to the Ventanilla Unica Digital through machine-to-machine integration.

Platform duties around registration-number display and checks now need to be interpreted with the Tribunal Supremo annulment of the state registration-number procedure; the public court summary says the Ventanilla Unica Digital and platform data-transmission obligations were not annulled.

Platform payload fields include registration-number fields, unit address, postal code, municipality, country, guest count, guest countries of residence, rental period, listing URL, platform identity, reference period, and send timestamp. Registration-number semantics may change after the annulment of the state Registro Unico procedure.

The host/lessor annual model supports electronic filing through the Registrars electronic office and an XBRL taxonomy named in the legal instrument; the Ministry FAQ says the annual model is first due in February 2026 for 2025 short-term urban rentals.

The Ministry says tools, manuals, and documentation are available to platforms through its platform contact route. A public platform-adherence procedure PDF describes who may request adhesion to the Ventanilla Unica Digital de Arrendamientos, but no public Spain-specific SDEP source code, OpenAPI schema, sandbox, or self-serve developer portal is currently available.

Implementation timeline

The Ministry says the Ventanilla Unica Digital is available from 2 January 2025 and the provisions take effect on 1 July 2025; the state Registro Unico registration-number procedure in the original decree has since been partly annulled by Tribunal Supremo judgments.

Order VAU/653/2025 defines platform transmission deadlines and model.

Order VAU/1560/2025 defines the annual host/lessor information model and XBRL taxonomy.

Registration workflow

The original Royal Decree model required each property or separable unit intended for short-term rental through platforms to obtain a unique registration number.

Tribunal Supremo judgments published as BOE-A-2026-12300 and BOE-A-2026-13893 annul the state Registro Unico procedure and the obligation to use the Property Register or Movable Property Register route for a national registration number before advertising.

Regional, autonomous-community, and municipal tourism or housing registration rules still matter, and Spain may need clarified replacement arrangements for how platform checks map to non-national or future identifiers.

Platform obligations

Regular platforms transmit activity data machine-to-machine.

The reference period is monthly and the transmission deadline is the first 15 calendar days of the following month unless the European Commission establishes a different deadline.

Platforms must continue to track Ventanilla Unica Digital data-transmission obligations; registration-number display/check workflows require updated legal interpretation because the national Registro Unico number procedure was annulled.

Microplatform routes include quarterly transmission and either manual Ministry-portal reporting or machine-to-machine integration.

Technical interfaces

The legal payload model includes unit address, municipality, country, registration-number fields, guest count, guest residence countries, rental period, listing URL, platform identity, reference period, and send timestamp; registration-number semantics may change after the annulment of the state Registro Unico procedure.

The Ministry platform and microplatform pages refer to machine-to-machine integration, manual reporting for microplatforms, and Ministry-provided tools/manuals/documentation through contact routes, rather than a public OpenAPI portal.

The annual host/lessor model uses an XBRL taxonomy named in Order VAU/1560/2025.

Open questions

How Spain will adjust or clarify registration-number semantics after annulment of the state Registro Unico procedure, including the relationship between regional/local registers and platform checks.

Whether channel managers or PMS vendors can submit as delegated platform agents, or whether only the publication platform can submit.

Whether Spain will publish a public OpenAPI schema, sandbox, or self-serve onboarding process beyond the Ministry platform contact route.