Compliance Watch · Portimão

2.3% of Portimão Airbnb listings are missing or have malformed RNAL registration numbers.

Last updated:

44 listings analysed from the 03 May 2026 Inside Airbnb snapshot. 1 carry no registration number at all; 0 display a value that doesn't match the RNAL format. Under Decreto-Lei 128/2014 (Alojamento Local) + EU Regulation 2024/1028 this is the operator's exposure, not the platform's.

44
Listings analysed
43
Format-valid
97.7%
0
Malformed
0.0%
1
Missing entirely
2.3%

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What is the RNAL number?

Portimão short-term rentals must carry a valid RNAL registration number (format NNNNN/AL) under Decreto-Lei 128/2014. Portimão's Câmara Municipal has placed parts of the municipality under contention since 2024, refusing new registrations in those parishes.

Portimão (and Praia da Rocha) is one of the largest Algarve operator pools — heavy seasonal demand pushes a lot of single-property hosts to register under their personal NIF. Portimão's Câmara Municipal has put parts of the municipality under contention since 2024, which means new RNAL registrations in those parishes are refused; existing registrations remain valid.

Every Portimão short-term rental must carry a valid RNAL number — format NNNNN/AL — under Decreto-Lei 128/2014. Since 20 May 2026 Airbnb and Booking are verifying RNAL numbers against the EU central register under Regulation 2024/1028 — listings without a valid number are being 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 the central EU register that came online on 20 May 2026 under Regulation 2024/1028. Portugal's RNAL feeds into the EU NRUA — operators with a valid RNAL don't need to re-register, but the platforms (Airbnb, Booking) are now verifying numbers against the central register before allowing the listing to publish.

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

Since 20 May 2026, platforms are required to verify registration numbers before publishing. Listings without a valid RNAL may now be pulled by Airbnb or Booking. You also remain personally liable for fines under Decreto-Lei 128/2014 — typically €2,500 to €40,000 for unregistered rentals. Both exposures apply simultaneously.

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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