— Essay Nº1, on the obligation of hosts in Spain

On the registry of travellers in Spain

Being a brief account of the lineage, the architecture, and the substantive duties that fall upon any provider of paid lodging within the Kingdom of Spain — with citations to the relevant texts.

It is a curious feature of the Spanish administrative tradition that the obligation to register the traveller, far from being an invention of the digital age, traces an unbroken lineage to the late autarkic decades of the twentieth century. The Decreto 1513/1959, de 18 de agosto, promulgated under the Franco regime in the context of incipient mass tourism, established the now–familiar figure of the libro registro: a paper ledger, kept at the front desk of every hostal and pensión, in which the names of guests were to be inscribed and subsequently reported to the nearest comisaría of the National Police. That instrument, modestly retouched by the Orden INT/1922/2003, de 3 de julio, survived in substance for more than six decades, until its replacement by the regulation that today concerns us.¹

The successor text is the Real Decreto 933/2021, de 26 de octubre, by which the Council of Ministers of the Government of Spain — acting under the habilitation conferred by articles 25 to 27 of the Ley Orgánica 4/2015, de 30 de marzo, de Protección de la Seguridad Ciudadana — established the obligations of documentary registration and information that bind, on the one hand, providers of lodging, and, on the other, undertakings dedicated to the rental of motor vehicles without driver. The regulation was published in the Boletín Oficial del Estado, número 258, on 28 October 2021; after two extensions of its implementation deadline, the regime became fully enforceable on 2 December 2024.²

The substantive scope of the obligation is best understood by attending to the categorical breadth of the addressees. The regulation does not confine itself, as did its 1959 predecessor, to the formal hotel sector. Its language reaches expressly to hoteles, hostales, pensiones, paradores, apartamentos turísticos, viviendas de uso turístico (in their various regional denominations), casas rurales, campings, albergues, and even refugios de montaña. It extends, moreover, by way of an autonomous obligation of communication, to the digital intermediation platforms — Airbnb, Booking, Vrbo, Expedia, and their congeners — which must report bookings and cancellations to the central system at the moment they occur. The owner of a single second residence let for a fortnight in the summer is, for these purposes, no less a sujeto obligado than the operator of a four–hundred–room hotel on the Castellana.

The obligation falls upon any provider of paid lodging, regardless of size or formal qualification — whether a registered hotel undertaking, a tourist apartment, a rural house, a campsite, or a private dwelling let to travellers for consideration — and equally upon the digital platforms through which such lodging is contracted.

— Paraphrase of the operative provisions of Real Decreto 933/2021.

The regulatory architecture, in turn, rests upon a single central platform — the Sede Electrónica del Ministerio del Interior, in its SES.Hospedajes module — and upon two carve–outs, the recognition of which is essential to any practical understanding of the regime. In Catalonia, the Generalitat operates, through the Policía de la Generalitat–Mossos d’Esquadra, the Registre de viatgers, to which hosts in that autonomous community submit in lieu of the central system; the Catalan portal requires manual file upload and offers no automatic interface. In the Basque Country, the equivalent function is discharged by the Ertzaintza, the Basque autonomous police, under a distinct procedural framework. Everywhere else in the territory of Spain — from Andalucía to Asturias, from Madrid to the Balearic and Canary Islands — SES.Hospedajes is the sole channel.³

The substantive duties imposed upon the host are, in essence, four. First, registration: the establishment must be enrolled as a prestador on the relevant platform before any communication is attempted, and that enrolment requires identification by digital certificate of the Fábrica Nacional de Moneda y Timbre or by activated Cl@ve credentials — a hurdle of singular consequence for non–resident owners without an active NIE. Second, the capture of data: at the moment of check–in, the host must record some fifteen to twenty fields per traveller, including, in the case of the Spanish DNI, the so–called número de soporte, a datum distinct from the document number itself and frequently mistaken for it. Third, retention: the professional host, identified by habitual exercise of the activity and by inscription in the tourism registry of the relevant autonomous community, must conserve the signed parte together with the acknowledgement of transmission for a period of three years from the close of each stay. Fourth, the signature: each traveller of fourteen years of age or older must sign the parte, whether on paper or by electronic means — a digital signature, an OTP–confirmed pre–arrival check–in flow, or, in the older manner, a wet signature retained by the host.⁴

What emerges from the foregoing is a regime that, while clothed in the formal vocabulary of public security, operates in practice as a daily, granular, and unforgiving discipline imposed upon every lodger of travellers in Spain. The communication must be made within twenty–four hours of check–in, without distinction of weekend, holiday, or technical incidence. The penalty regime, derived from articles 36 to 38 of the Ley Orgánica 4/2015, is itself a matter for separate treatment;⁵ it suffices here to observe that mere failure to enrol as a prestador on SES.Hospedajes constitutes, by itself, a grave infraction, with fines extending to thirty thousand euros. The non–resident owner who supposes that geographical distance or unfamiliarity with Spanish administrative procedure will mitigate the consequences of non–compliance is, on the evidence of the proceedings commenced through 2025, mistaken.

It remains only to note that the obligation here described coexists with, and is in no respect substituted by, the parallel obligations of tax (whether IRPF, IVA, or non–resident IRNR), of tourist tax in those autonomous communities that levy it, and of inscription in the autonomous–community tourism registry. The host who is current with one set of duties cannot, on that account alone, presume currency with the others. The four essays that follow take up, in turn, the nature and scope of the regulation, the mechanics of compliance, certain common questions, and the question of consequence.

1. On the historical lineage, see the Decreto 1513/1959, de 18 de agosto, published in the Boletín Oficial del Estado in August of that year, and the subsequent Orden INT/1922/2003, de 3 de julio, which modestly modernized the regime without altering its essentially analogue character. ↩
2. Real Decreto 933/2021, de 26 de octubre, por el que se establecen las obligaciones de registro documental e información de las personas físicas o jurídicas que ejercen actividades de hospedaje y alquiler de vehículos a motor. Boletín Oficial del Estado, núm. 258, 28 October 2021. Two extensions of the implementation deadline (to 31 January 2024 and thereafter to 31 October 2024) were granted by the Ministerio del Interior in response to sector representations; the regime became fully enforceable on 2 December 2024. ↩
3. SES.Hospedajes is accessed through the Sede Electrónica del Ministerio del Interior at https://sede.mir.gob.es. The Catalan Registre de viatgers, operated by the Mossos d’Esquadra, lies outside the central system; so too the procedure of the Ertzaintza in the Basque Country. ↩
4. The data–capture catalogue, the three–year retention obligation (binding professional hosts only), and the signature requirement for travellers aged fourteen and over are set out in the body of Real Decreto 933/2021 and in its annexes. The signed parte is conserved by the host as part of the documentary file; only the data fields themselves are transmitted to the central platform. ↩
5. Ley Orgánica 4/2015, de 30 de marzo, de Protección de la Seguridad Ciudadana, articles 36 to 38, governs the sanctioning regime applicable to infractions of the registration duty. The matter is taken up at length in the fifth essay of the present series. ↩