Short-Term Rental
in Greater Porto

Welcome to the Short-Term Rental Guide.

This guide was created by Z Imobiliária to support owners and investors through every stage of Short-Term Rental ("Alojamento Local" or AL) in Greater Porto — from the first question, "is my property eligible?", to the day-to-day management of an AL already up and running.

Why this guide

Portugal's Short-Term Rental regime has changed significantly in recent years — Decree-Law 76/2024 revoked the nationwide suspension on new registrations, eliminated the Extraordinary Contribution on Short-Term Rental (CEAL), and simplified the registration process. At the same time, each municipality in Greater Porto (Porto, Matosinhos, Vila Nova de Gaia) has its own specific rules on restricted zones, tourist taxes and enforcement.

This guide brings together, in a single document, information scattered across dozens of official pages — the Single Electronic Counter (Balcão Único Eletrónico), Municipal Councils, the Tax Authority, Turismo de Portugal — and translates it into clear, practical language.

Who this guide is for

• Owners considering opening a Short-Term Rental on their own.
• Investors evaluating Greater Porto as an STR destination before buying a property.
• Z Imobiliária clients who want to understand what professional management handles for them.
• Anyone already operating an AL who wants to confirm they are in full compliance.

How to use this guide

Part I (chapters 1 to 7) is institutional — it explains the legal regime, taxation and profit potential, designed for those still deciding whether to move forward with an AL. Part II (chapters 8 to 12) is operational — a more technical, practical annex including checklists and FAQs, designed for quick day-to-day reference.

What is Short-Term Rental.

Short-Term Rental (AL) is the legal regime that allows furnished accommodation to be offered to tourists for payment, on a temporary basis — without having to meet the requirements imposed on traditional tourist developments (hotels, guesthouses, etc.).

It differs from residential leasing mainly in the length of stay — typically under 30 consecutive days — and in the services usually included, such as cleaning and bed linen. It's the typical format advertised on platforms like Airbnb or Booking.

The Four AL Categories

• Apartment — A self-contained unit within a building, or part of an urban property intended for housing. The most common category in Greater Porto.
• House — A self-contained single-family residential building (or part of one), with independent access. The only category exempt from the mandatory "AL" sign.
• Guesthouse Establishment — The accommodation units are rooms, not a full unit. Includes "Hostel", a designation subject to additional requirements.
• Rooms — AL operation within the owner's main residence, with up to 3 rooms made available, with the owner living on the premises.

Legal Framework

The AL regime is regulated nationally by Decree-Law 128/2014, with successive amendments — most recently Decree-Law 76/2024, which revoked the nationwide suspension on new registrations introduced by Law 56/2023, eliminated the CEAL (Extraordinary Contribution on Short-Term Rental), and made registration valid for an indefinite period.

Short-Term Rental vs. Traditional Leasing

AL is often confused with short-term leasing — but they are distinct legal regimes, with different obligations.

Why Choose AL in Greater Porto

1. Consistent year-round tourist demand, with peaks in summer and around events such as São João.
2. Historically higher gross yields than traditional leasing in tourist areas (Baixa, Foz, Ribeira).
3. Flexibility for the owner to use the property during personal periods — impossible with long-term leasing.
4. The option of fully professional management through Z Imobiliária, with no direct involvement from the owner.

Is My Property Eligible for AL?

Before any other step, three checks determine whether your property can actually be registered as Short-Term Rental. Skipping this step is the most common reason applications get rejected.

1. Usage Licence

The property must hold a valid usage licence for residential purposes, issued by the Municipal Council. This document confirms that the building meets legal habitability and safety requirements. It can be confirmed with the municipal council or on the land registry record (caderneta predial).

Properties built before 1951 are exempt from this licence — but the owner must be able to prove the building's age with suitable documentation (e.g. caderneta predial, land registry certificate).

2. Restricted Zones

Each municipal council can declare "restricted zones" — areas with an oversupply of AL establishments, justifying restrictions on new registrations. In Porto, these zones currently correspond to the parishes of Santo Ildefonso, Sé, Miragaia, São Nicolau and Vitória.

In these zones, new registrations are only authorised in exceptional cases — for example, buildings vacant for more than three years, or properties renovated in the last two years that have risen by at least two conservation levels.

3. Condominium Regulations

In buildings under horizontal property regime, the founding deed (título constitutivo) can restrict or prohibit commercial activities, including AL. Under Decree-Law 76/2024, prior authorisation from the condominium assembly is no longer required for most categories — except for hostels.

Zones by Municipality — Greater Porto

How to Confirm Eligibility

1. Check the Integrated Short-Term Rental Information System (SIIAL) to see how many establishments are already registered in your parish and the corresponding pressure ratio.
2. Ask the relevant Municipal Council for written confirmation that the property is not in a restricted zone, or that it meets one of the applicable exceptions.
3. Review the building's horizontal property founding deed (available at the Land Registry Office) to confirm there are no restrictions.
4. If in doubt, Z Imobiliária can carry out this full check on your behalf, before any financial commitment.

The Licensing Process, Step by Step.

Once the property's eligibility is confirmed (Chapter 3), Short-Term Rental registration follows an entirely electronic process, through the Single Electronic Counter (Balcão do Empreendedor). Here is the full process, stage by stage.

1. Gather the Documentation — Owner identification, proof of the right to operate the property (ownership, lease or other title), usage licence or proof of pre-1951 age.
2. Authenticate on the Portal — Access eportugal.gov.pt, "Start Activity" section. Authentication is mandatory via Digital Mobile Key, Citizen Card or digital certificate.
3. Submit the Prior Notification — Indicate address, category (apartment, house, guesthouse, rooms), capacity in rooms and beds. Attach all documentation. Can be submitted by an authorised third party.
4. Wait Out the Objection Period — The Municipal Council has a deadline to object: 60 working days as a rule, or 90 working days if the property is in a restricted zone. With no objection, the registration is tacitly approved.

What is the RNAL

Once the objection period passes with no objection, an RNAL registration number is generated (National Register of Short-Term Rental), managed by Turismo de Portugal. The document issued by the Single Electronic Counter, containing this number, is the valid title to open to the public — it's what's commonly, informally, called an AL "licence".

After the RNAL — Subsequent Registrations

Getting the RNAL number is only the starting point. Before welcoming the first guest, three mandatory registrations remain to be completed:

1. Municipal Tourist Tax Platform (PTMT) — registering the establishment, within the legal deadline set by each municipality's regulation, in order to charge and remit the tourist tax.
2. Public Liability Insurance — submitting proof on the gov.pt Portal, with authentication via Digital Mobile Key or Citizen Card. Mandatory since March 2025.
3. Registering Self-Employed Activity with the Tax Authority — Category B (business activity), through the Finance Portal, before issuing the first receipt.

Response Deadlines — Summary by Municipality

Changes to the Registration

Any change to the operation — capacity, ownership or category — must be reported to the municipal council within 10 days of the change. This includes, for example, selling the property to a new owner who intends to continue the activity, or changing the number of rooms offered.

How Much the Registration Costs

Submitting the prior notification at the Entrepreneur's Counter is, in itself, free of charge. The real costs of the process come from preparatory requirements (usage licence, any adaptation works) and subsequent operation (insurance, accounting). Some municipalities charge an additional fee for mediated in-person service, if the application isn't submitted directly online.

What Can Go Wrong

• Application rejected due to lack of a valid usage licence, or insufficient pre-1951 age documentation.
• Objection from the municipal council because the property is in a restricted zone without meeting any of the foreseen exceptions.
• Cancellation of an already-active registration due to failure to submit public liability insurance within the deadline.
• Fines for operating without a valid registration — up to €40,000 in some municipalities, plus mandatory closure of the activity.

Ongoing Legal Obligations.

AL registration isn't a one-off event — it's the start of a set of obligations that repeat with every guest, month or year. Failing to meet these obligations is the most common cause of fines and the cancellation of already-active registrations.

Guest Reporting — SIBA

Since the SEF was dissolved in October 2023, guest reporting is done through SIBA (Accommodation Bulletin Information System), now run by the PSP in coordination with AIMA. The obligation applies to all non-national guests, within three days of arrival.

Non-compliance results in fines between €100 and €2,000 per guest not reported. Initial SIBA registration can take up to 48 hours to become active — it should be handled as soon as the RNAL number is issued.

"AL" Identification Sign

Under Law 62/2018, the "AL" sign is mandatory at all Short-Term Rental establishments, except houses. It must be displayed on the exterior of the property, in a visible spot, with dimensions and format set by Ordinance 138/2020. Failure to display this sign is a minor offence, with a fine between €50 and €750.

Public Liability Insurance

The policy must cover material and non-material damage caused to guests and third parties arising from the activity. Premiums average between €100 and €300 per year. Without proof submitted on the gov.pt portal, the municipal council can cancel the registration at any time.

Safety Requirements

Each accommodation unit must meet minimum habitability and safety requirements, enforced mainly by ASAE, the municipal council and the Tax Authority.

• An external window in each accommodation unit, with a way to block outside light.
• A door with a privacy lock and furniture suited to the number of guests.
• At least one bathroom for every four rooms, up to a maximum of one per 10 guests.
• Fire extinguisher, fire blanket and first-aid kit, for properties with 10 or fewer guests.
• Emergency number 112 displayed visibly in all units.
• Complaints book available in both physical and electronic format.

Condominium Restrictions and Rights

Although prior authorisation from the condominium assembly is generally no longer required, Decree-Law 76/2024 keeps a defence mechanism: the assembly may request cancellation of the registration in case of repeated disturbance to the other residents' rest, through a reasoned resolution approved by more than half the building's permillage (ownership share).

STR Taxation.

Income generated by a Short-Term Rental is taxed as business activity (Category B), distinct from traditional leasing (Category F). This section explains the regular tax obligations and the Municipal Tourist Tax applicable in Greater Porto.

Simplified Regime — Regular Obligations

1. Register activity on the Finance Portal, under Category B, before issuing the first receipt.
2. Issue a receipt for each booking, within five days of receiving payment or after check-in.
3. Submit the SAF-T file to the Tax Authority by the 20th of each month, covering receipts issued the previous month, when these are not issued directly via the Finance Portal.
4. Annual personal income tax (IRS) return, with activity income included in Annex B.

Municipal Tourist Tax (TMT)

A charge collected from guests by the accommodation provider, and passed on to the municipality. Each municipality has its own rate, registration platform and exemption rules.

TMT by Municipality — Greater Porto

VAT and Other Considerations

The TMT is exempt from VAT. As for income from the AL activity itself, VAT liability depends on annual turnover and the chosen tax regime — a matter that should always be confirmed with a certified accountant, since each financial situation is different.

The Extraordinary Contribution on Short-Term Rental (CEAL), which applied a 15% rate on a taxable amount calculated from the property's area, was eliminated by Decree-Law 76/2024. Hosts have not had this charge since the 2025 tax year.

How Much You Can Earn From Your Property.

With the legal side covered, the question that really matters for most owners is: is it worth it? This section presents the most relevant market indicators for Greater Porto.

Factors That Determine Profitability

1. Location — central tourist areas (Baixa, Ribeira, Foz) generate more consistent occupancy, but come with a higher purchase price.
2. Layout and capacity — well-located 1- and 2-bedroom apartments tend to have the best ratio between investment and income per m².
3. Management quality — dynamic pricing, professional photography and fast guest responses directly influence occupancy rates.
4. Seasonality — Greater Porto has year-round tourist demand, with peaks in summer and around events like São João, but requires a pricing strategy tailored to each period.

AL vs. Traditional Leasing — Decision

There's no one-size-fits-all answer — it depends on the owner's profile and the property. This table summarises when each regime tends to make more sense.

Use Z Imobiliária's Simulator

Z Imobiliária offers a free investment simulator at zimobiliaria.pt/simulador-app-en.html, which compares AL vs. Traditional Leasing for your specific property — including transfer tax (IMT), council tax (IMI), personal income tax (IRS), operating costs, bank financing and 3 market scenarios (conservative, base and optimistic).

Day-to-Day Management by Z Imobiliária.

Everything described in the previous chapters — licensing, legal obligations, taxation — can be managed directly by the owner, or fully delegated to Z Imobiliária. This section describes what's included in professional management.

1. Licensing and Compliance — Eligibility checks, submitting the prior notification, PTMT registration, and keeping public liability insurance up to date.
2. Photography and Listings — Professional photography of the property, optimised descriptions and listing on Airbnb, Booking.com, VRBO and other relevant platforms.
3. Pricing Management — Dynamic pricing strategy, adjusted to demand, seasonality and local events, to maximise occupancy rate and revenue.
4. Check-in and Check-out — In-person reception or smart lockbox, key handover, property inspection and guest departure follow-up.

Guest Communication

24/7 guest support in Portuguese, English and Spanish, before, during and after the stay — including review management and resolution of any incidents.

Cleaning and Maintenance

Professional cleaning crew between stays, including bed linen, and a network of trusted technicians for quick resolution of any maintenance issue — plumbing, electrical, appliances.

Monthly Report

Detailed report with bookings, revenue, occupancy rate and expenses for the month, ensuring full transparency on the property's performance. The owner accesses this information without having to manage any operational aspect directly.

How to Get Started with Z Imobiliária

1. Free initial assessment of the property and its eligibility for Short-Term Rental.
2. Personalised proposal, with revenue estimate and an action plan for licensing (if not yet registered).
3. Signing the management contract, with transparent terms and no hidden fees.
4. Property preparation — photography, listing, licensing — and launch of operations.

Compliance Checklist.

Use this list for a quick self-assessment of your Short-Term Rental's compliance status. If you tick "no" on any point, immediate corrective action is recommended.

Before Opening

• I have confirmed the property is not in a restricted zone, or that it meets an applicable exception.
• I have a valid usage licence, or documentation proving pre-1951 age.
• I have reviewed the horizontal property founding deed (if applicable) and there are no restrictions on the activity.
• I have submitted the prior notification at the Entrepreneur's Counter and received the RNAL number.

Before the First Guest

• I have registered the establishment on the Municipal Tourist Tax Platform (PTMT) of the relevant municipality.
• I have submitted proof of public liability insurance on the gov.pt portal.
• I have registered self-employed activity with the Tax Authority under Category B.
• I have displayed the "AL" sign on the exterior of the property (unless it's a house).
• I have the complaints book available in both physical and electronic format.
• I have confirmed a fire extinguisher, fire blanket, first-aid kit and visible 112 number.

For Every Stay

• I report non-national guests' details in SIBA, within three days of arrival.
• I collect and record the Municipal Tourist Tax applicable to each guest.
• I issue the booking receipt within the legal deadline (five days after payment or check-in).

Periodically

• I submit the SAF-T file to the Tax Authority by the 20th of each month (if applicable).
• I renew public liability insurance before its expiry date.
• I report any change in capacity, ownership or category to the municipal council within 10 days.

Frequently Asked Questions.

Glossary of Terms.

AL

Alojamento Local (Short-Term Rental) — the legal regime for offering temporary paid accommodation to tourists.

AIMA

Agency for Integration, Migration and Asylum — coordinates with the PSP on managing foreign guest data.

RNAL

National Register of Short-Term Rental, managed by Turismo de Portugal. The RNAL number is what confirms the establishment is legally registered.

TMT

Municipal Tourist Tax — a per-night charge, set by each municipality, paid to the relevant council.

Entrepreneur's Counter

Electronic platform (eportugal.gov.pt) where the Short-Term Rental prior notification is submitted.

CEAL

Extraordinary Contribution on Short-Term Rental — an annual charge eliminated by Decree-Law 76/2024, as of the 2025 tax year.

Prior Notification with Deadline

The legal name for the AL registration process — informally called a "licence".

SAF-T

Standard Audit File for Tax — a standardised electronic file submitted to the Tax Authority with billing data.

Restricted Zone

An area declared by the municipal council where there's an oversupply of AL establishments, with restrictions on new establishments.

Category B

The personal income tax (IRS) category for business and professional income — applicable to Short-Term Rental income.

SIBA

Accommodation Bulletin Information System, run by the PSP, for reporting non-national guests.

SIIAL

Integrated Short-Term Rental Information System — allows checking the number of establishments and the pressure ratio by parish.

Ready to move forward with your Short-Term Rental?

Z Imobiliária supports you through every stage described in this guide — from checking eligibility to the day-to-day management of your Short-Term Rental, in any municipality across Greater Porto.

1. Free assessment of your property and its eligibility for AL.
2. Personalised proposal, with revenue estimate.
3. Full support for licensing and day-to-day management.