EU STR Registration Helper › Portugal
Portugal: the Alojamento Local (AL) registration number
Portugal requires short-term-rental operators to file a comunicação prévia through the Balcão Único on gov.pt and display the resulting Alojamento Local (AL) number on every listing.
What Alojamento Local is
The Alojamento Local (AL) regime, governed by Decreto-Lei 128/2014 (amended through DL 76/2024), covers short-term tourist accommodation — apartments, houses, hostels and rooms. You file a comunicação prévia com prazo to your câmara municipal, and the system issues a registration number that is the legal title to operate.
Where to register
File through the Balcão Único Eletrónico at gov.pt. The number is assigned automatically on submission; the câmara municipal can oppose within 60 days (90 in containment areas). You can verify any AL number on the public RNAL registry.
What the number looks like
An AL number is a sequence of digits followed by /AL — for example 123456/AL. The /AL suffix and the numeric body are confirmed from the official RNAL registry, but the law sets no fixed digit count, so the length is advisory.
What you need
The autorização de utilização of the property; the operator’s identity and NIF; the caderneta predial or lease contract (with subletting authorisation if applicable); and a declaration of the tax activity (CAE 55201 or 55204).
Recent legal changes
The 2023 “Mais Habitação” law introduced a registration freeze and a 5-year validity, but DL 76/2024 (October 2024) revoked both — registration is again indefinite and transferable. EU Regulation 2024/1028 applies from 20 May 2026 alongside the AL regime.
Check your number
Paste your Portugal registration number into the
helper for a client-side format check that runs entirely in
your browser. We verify the /AL suffix and numeric body; the digit count is advisory because no minimum is set in law. Confirm on the RNAL registry.