Compliance Watch · Lisbon

4.0% of Lisbon Airbnb listings are missing or have malformed RNAL registration numbers.

Last updated:

25277 listings analysed from the 25 December 2025 Inside Airbnb snapshot. 0 carry no registration number at all; 1007 display a value that doesn't match the RNAL format. Under Decreto-Lei 128/2014 (and the Mais Habitação revisions) this is the operator's exposure, not the platform's.

25277
Listings analysed
23099
Format-valid
91.4%
1007
Malformed
4.0%
0
Missing entirely
0.0%

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What is the RNAL number?

Lisbon short-term rentals must carry a valid RNAL registration number in the format NNNNN/AL under Decreto-Lei 128/2014. From 20 May 2026, Airbnb and Booking must verify this number against the EU central register under Regulation 2024/1028 before publishing the listing.

The RNAL (Registo Nacional de Alojamento Local) is Portugal's national short-term rental register, run by Turismo de Portugal. Every Lisbon listing rented to non-residents must carry a valid RNAL number — the format is NNNNN/AL (five digits, slash, AL).

Listings without a number, or with a malformed number, are exposed under Decreto-Lei 128/2014 and the 2023 Mais Habitação amendments. Lisbon Câmara Municipal has its own moratorium overlay on top of the national rules — properties in saturated parishes (Santa Maria Maior, Misericórdia, São Vicente) can have their RNAL refused or revoked outright.

Portugal also has to plug into the new EU Regulation 2024/1028 central register by 20 May 2026. From that date Airbnb and Booking are obliged to verify the RNAL number against the central register before publishing a listing — which means non-compliant listings will simply get pulled.

Common questions

What's the difference between RNAL and the EU NRUA?

RNAL is the existing Portuguese national register, format NNNNN/AL. The EU NRUA (Numero de Registro Único de Alojamiento) is a new central EU register coming online on 20 May 2026 under Regulation 2024/1028. Portugal's RNAL feeds into the EU NRUA — operators with a valid RNAL won't need to re-register, but the platforms (Airbnb, Booking) will start verifying numbers against the central register before allowing the listing to publish.

What happens if I don't have a registration number?

Until May 2026, the platform may keep your listing up but you remain personally liable for fines under Decreto-Lei 128/2014 — typically €2,500 to €40,000 for unregistered rentals. From 20 May 2026, the platform itself is required to refuse or pull your listing under EU Regulation 2024/1028. The fine exposure stays.

I'm not sure if my listing has the right number.

Paste your URL into the form above. We'll match it against our most recent dataset (a Q4 2025 snapshot). If it's in there, you'll see what registration value is currently stamped on it — sometimes hosts have a number on file that they haven't actually published. If it's not in our snapshot, we'll run a fresh audit.

Where does this data come from?

From quarterly Inside Airbnb snapshots, an open dataset covering most large European cities. We re-import on the 1st of each month and re-evaluate registration numbers against the official register format and (where reachable) the live RNAL site at rnt.turismodeportugal.pt. The data is anonymised at the host level — we report aggregate statistics, not individual host names.

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