Policy

Alojamento Local Hosts Face Tighter SIBA Rules on Foreign Guests

Portugal's AL hosts must report every foreign guest via SIBA within 3 working days, as new VAT and tourist tax rules reshape short-stay lodging for movers.

5 min readUpdated September 2026

Key figures — as of 2026-09-28: Foreign guests (EU nationals included) must be reported via SIBA within 3 working days of check-in and again within 3 working days of check-out — fines start at €100 per missing boletim; from 20 May 2026, EU Regulation 2024/1028 forces Airbnb and Booking.com to verify a listing's RNAL number before it goes live; non-resident hosts lost the small-business VAT exemption from 1 July 2025 and must now charge 6% VAT from their first euro of turnover; Lisbon's tourist tax holds at €4/night (7-night cap), Porto at €3/night.

The reporting clock every host now runs against

If you rent out a room, an apartment or a whole villa under Alojamento Local, a rural tourism licence, or a hotel registration, you have to report every non-Portuguese guest within 3 working days of arrival, and again within 3 working days of departure. That includes EU citizens — French, German, Spanish guests count exactly the same as arrivals from outside Europe.

If you rent out a room, an apartment, or a whole villa in Portugal, under Alojamento Local, a rural tourism license, or a hotel registration, you have to report every non-Portuguese guest within 3 working days of arrival, and again within 3 working days of departure. That includes guests from France, Germany, Spain, and the rest of the EU, not only guests from outside Europe. Portuguese nationals are exempt from the obligation entirely, but everyone else goes through SIBA, the accommodation-bulletin system now run by AIMA rather than the defunct SEF. Miss the window and the fine starts at €100 per missing boletim and climbs from there — up to €2,000 per case, according to compliance guides tracking recent inspections. Repeated lapses can put the AL registration itself at risk, which is a far costlier problem than a single overlooked form.

Platforms are now on the hook too

The reporting burden used to sit almost entirely with the host. That's changing. From May 20, 2026, EU Regulation 2024/1028 also requires booking platforms such as Airbnb and Booking.com to verify your RNAL number before a listing stays live, and to report activity data to Portugal's Single Digital Entry Point. That's a platform-side check, separate from the boletim you file with AIMA, and it does not stand in for the SIBA reporting duty. In practice, that means a listing without a valid RNAL number simply can't stay online in the major booking channels — one more filter a relocating foreigner will hit when searching for a legal, bookable short stay.

VAT lost its safety net for non-resident owners

Alongside the reporting tightening, the tax side shifted meaningfully in 2025 and carries into 2026. Non-resident owners who used to shelter under the small-business VAT exemption no longer can. If you reside outside of Portugal and own a property registered for tourist rentals in Portugal, you will no longer be eligible for the VAT exemption regime, and must register for VAT, charge VAT to all guests at the special rate of 6%, appoint a fiscal representative, and submit periodic VAT returns. These changes are mandatory and have been in effect since July 1, 2025. Resident owners keep access to the exemption, but the ceiling moved: VAT becomes due starting January 1, 2026, or, if turnover exceeds €18,750 at any point during the year, from the invoice that surpasses that threshold. On top of that, the 15% Extraordinary Contribution on Local Accommodation that briefly applied to coastal holiday lets is gone — the repeal brings an end to the 15% levy that applied to properties used for holiday lets, applied retroactively to 31 December 2023.

Tourist tax keeps climbing in the big cities

Lisbon's municipal tourist tax has held at €4 per guest per night, capped at seven nights, since it doubled from €2 in September 2024. Porto charges €3 per night under the same cap. Around 40 to 49 Portuguese municipalities now levy some version of the tax, and it stacks on top of the nightly rate and the VAT.

What this actually costs someone relocating

None of this is abstract for a foreigner using AL listings as a bridge while they find a lease. GrowIN Portugal Editorial ran the numbers on a fairly typical case: a single relocator booking a €90/night Lisbon apartment for 30 nights while sorting out a rental contract. Under the post-2025 rules, if that flat is owned by a non-resident host who's lost the exemption, 6% VAT adds roughly €162 across the stay. The tourist tax, capped at seven consecutive nights per booking, adds up to €28 more if booked as a single stay, or more if split across shorter bookings that each restart the seven-night cap. That's close to €190 in tax exposure on a single month of bridging accommodation — before agency fees or cleaning charges — money that either gets passed straight into the nightly rate or eats into the host's margin.

"The paperwork now sits on both sides of the booking — hosts filing boletins within three working days, platforms checking licence numbers before they'll even list the flat," notes GrowIN Portugal Editorial.

The practical squeeze on newcomers

For someone mid-move, the effect is indirect but real: fewer non-compliant listings staying live on the big platforms, tighter identity-document requirements at check-in (a passport or national ID, not a driving licence), and nightly rates that increasingly reflect VAT and tourist tax that weren't always itemised before. Anyone using short lets as a landing pad should budget for these add-ons and confirm a property's RNAL number before booking — our relocation hub and tax and NIF guide cover how these fit into a first-90-days plan, and our services team can help with the paperwork around a Portuguese move more broadly.

What to watch next

Municipalities including Lagoa and Faro are moving on their own containment rules for new AL registrations, on top of Lisbon's late-2025 freeze — worth checking before assuming a listing will still exist next year. Confirm current thresholds and rates directly with AIMA and the Autoridade Tributária before making a booking or a business decision; none of the above should be read as tax or immigration advice for an individual case.

Sources

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