What's required · Catalonia
The deadline, the data, and the way in
Three parts: when you file, what you collect, and how you get into the Mossos portal. The first two mirror the rest of Spain; the third is where Catalonia trips people up.
The 24-hour clock
You have 24 hours from check-in to file each guest. It doesn't pause for weekends, holidays, a delayed train or a portal outage. A Friday-night arrival means a Saturday-night deadline. The only sane way to stay inside it is to collect the data before the guest arrives.
The data — and why it bites
Around twenty fields per guest, and the exact set depends on the guest's document and country. This is where files get rejected.
| Field | When required |
|---|---|
| Name & first surname | Always |
| Second surname | Spanish documents |
| Nationality & date of birth | Always |
| Document type & number | Always |
| Document support number | DNI / TIE only |
| Passport + country of issue | Foreign documents |
| Home address | Always |
| Official municipality codes (INE) | Guests living in Spain |
A photo of the passport gets you none of this in usable form — and you're not allowed to keep ID images anyway. The detail that catches everyone: for a guest who lives in Spain, the file wants the official province and municipality (INE) codes, which the guest themselves rarely knows.
The way in
You don't get a username and password
The Mossos portal needs strong electronic identification — idCAT, idCAT Mòbil, Cl@ve or an FNMT certificate — and behind that, a valid NIE. Getting one is fiddly, and it's the wall owners abroad meet first. Honestly, that part is on you; no tool can obtain a credential for you. Owners abroad often appoint a representative who already holds one.
How most hosts actually do it
Almost nobody hand-builds the Mossos file. The realistic flow — the one we use:
Connect your bookings
Paste your Airbnb, Booking.com or Vrbo calendar link, or add bookings by hand.
Send each guest a link
They enter their own details before arrival — only the fields their country needs, official codes resolved.
We build the file
Shaped for the Mossos portal, checked line by line so it won't bounce.
You upload it
From your own account, with your own credential. That step stays yours.
Stay Comply by Tourist Tax Manager
Keeping our own Sitges flat compliant is why we built it. Free for your first 3 bookings — and it's growing to handle tourist tax too.
See how it worksKeeping records
Professional hosts keep the documentary file for three years from the end of each stay. Only the data fields go to the portal; what you keep stays with you — and don't store image copies of guests' IDs.
Sources
Registre de Viatgers
The official Catalan portal and its access requirements.
Open the portal