Housing crisis in Portugal: 2026 tax incentives for room rentals

The housing crisis in Portugal has been a major cause for concern for several years. Faced with soaring property prices in Lisbon, Porto, and the Algarve, finding affordable accommodation has become a true obstacle course for young professionals and students. At Roomlala, we closely observe these developments to support you as best we can. That is why we welcome with great interest the recent government measures aimed at easing this strained market.

On 20 May 2026, the Portuguese government reached a decisive milestone with the publication of Decree-Law No. 97/2026. This text introduces unprecedented tax incentives to encourage hosts to open their doors and offer long-term rentals. If you have an empty room, this is the perfect time to consider a homestay. Not only are you helping to resolve a national crisis, but you also benefit from considerable financial advantages.

See also: Regulations in British Columbia: The long-term room rental boom in 2026, Alojamento Local and high-demand areas: The new rules boosting long-term rentals in Portugal in 2026 and Rental fraud in Spain: New 2026 regulations to secure long-term shared housing

In this article, we break down this entire new tax package for you. From the drastic reduction in tax on your property income to the benefits you can offer your future tenants, we explain how to take advantage of these new rules. Get ready to optimise your tax position while renting out your room with complete peace of mind with Roomlala.

Understanding the May 2026 Decree-Law: A turning point for hosts

The drastic reduction in IRS from 25% to 10%

The flagship measure of Decree-Law No. 97/2026 is undoubtedly the spectacular reduction in the tax rate on property income (IRS). Until now, income from room rentals was taxed at a flat rate of 25%. Since this new law came into force, this rate has been lowered to just 10% for so-called “moderate” rents. It is a true fiscal revolution for hosts in Portugal.

To benefit from this advantageous 10% rate, the monthly rent for the room (or accommodation) must not exceed the ceiling of €2,300. This cap was designed to include the vast majority of homestay rentals, even in the most sought-after neighbourhoods of Lisbon or Cascais. The State's objective is clear: to reward hosts who charge reasonable prices and contribute to the national housing effort.

Let’s take a concrete example to illustrate this benefit. Use case: Maria owns a large flat in Porto and rents a room to a young worker for €400 per month. Before 2026, on her €4,800 of annual income, she paid €1,200 in taxes (25%). Today, thanks to the new 10% rate, she only pays €480. That is a net saving of €720 per year, simply by complying with the new guidelines.

At Roomlala, we strongly encourage you to review the pricing of your room for rent to ensure it falls within these criteria. This tax reduction more than compensates for any moderation of your rent, while guaranteeing you will find a tenant much faster in the face of ever-increasing demand.

Strict conditions on lease duration (3 years minimum)

Please note, this tax gift does not come without strings attached. To fight against housing insecurity and curb excessive tenant turnover, the law imposes a strict duration condition. For your property income to be taxed at 10%, the residential lease agreement must be concluded for a minimum duration of 3 years.

This measure aims to stabilise the long-term rental market. By committing for three years, you offer invaluable security to your tenant, who can thus settle into their neighbourhood, work, or studies without the fear of having to move the following year. In return, the Portuguese State secures your tax benefit for the entire duration of the lease.

Use case: João, a pensioner living in Faro, wishes to rent out his son’s room who has moved abroad. He decides to sign a 3-year contract with a nurse from the local hospital. Even if the tenant decides to leave before the end of the 3 years (while respecting the legal notice period), João will have benefited from the reduced 10% rate for the entire effective duration of the rental, as the initial contract respected the form condition imposed by the law.

We know that committing to 3 years can be daunting for some hosts. However, bear in mind that Portuguese law provides for early termination clauses for the tenant, and guarantees for the host in the event of non-payment. At Roomlala, the quality of verified profiles allows you to approach this long-term rental with great confidence.

Declaring your income and optimising your tax position in Portugal

Category F and registration on the tax portal (AT)

Legality is the watchword for taking advantage of these incentives. In Portugal, income from renting a room as a homestay falls under Category F (Property Income / Rendimentos prediais). For the tax administration (Autoridade Tributária e Aduaneira - AT) to apply the famous 10% rate, you must follow a rigorous administrative procedure.

It all starts with registering your rental agreement. You are required to declare the contract on the Portal das Finanças (the AT portal) within 30 days of signing it. This registration will result in the payment of Stamp Duty (Imposto do Selo), which corresponds to 10% of the value of one month’s rent.

Then, you must issue electronic receipts (recibos de renda eletrónicos) monthly via this same portal. Here are the key steps to follow:

• Create a written contract expressly mentioning the rental of a room (and not the entire home).
• Register the contract on the Portal das Finanças with the tenant’s details (NIF required).
• Issue an electronic receipt for every payment received.
• Declare all this income during your annual IRS declaration (Annex F).

Concrete example: Ana, a Roomlala host in Coimbra, found her student tenant on our platform. Upon handing over the keys, she logs into the AT portal, registers the 3-year lease, and generates her first receipt. Thanks to this rigour, the Portuguese tax authorities will automatically apply the reduced 10% rate during her next tax return. We recommend that you get help from an accountant (contabilista) in the first year to avoid any entry errors.

Beware of non-deductible expenses

This is a crucial point of vigilance that we would like to highlight at Roomlala. In homestay rentals, it is very common to offer an “all-inclusive” rent (water, electricity, gas, internet). It is convenient for the tenant and simplifies daily management.

However, from a fiscal point of view in Portugal, current consumption charges (water, electricity, gas) are not deductible from your Category F property income. Only certain structural expenses (such as condominium fees, IMI, or building maintenance work) can be deducted if you were renting out the entire home, but for a room with utilities included, the rule is strict.

Use case: Pedro rents a room in Lisbon for €500 per month, specifying that €50 covers water and electricity. Fiscally, Pedro will be taxed on the full €500, not on €450. He will not be able to deduct his EDP (electricity) or EPAL (water) bills from his rental income.

Our advice for optimising your situation: calculate your base rent so that it absorbs these non-deductible charges while remaining attractive, or establish a rent excluding utilities and request a separate fixed contribution, although the first option remains the simplest to manage in the long term. Be transparent with your tenant from the start.

Benefits for your tenants: A gold-standard selling point

Increased tax deductions for classic tenants

The 2026 incentives do not stop with hosts. The government has also considered tenants, which constitutes a fantastic commercial argument for you, the hosts. By renting out your room in a declared and legal manner, you allow your tenant to benefit from significant tax deductions on their own IRS.

The tax deduction ceiling for rent for tenants rises to €900 for the 2026 tax year and will even reach the symbolic €1,000 mark in 2027. This means a tenant can deduct a significant portion of the rent paid to you from their taxes, provided, of course, that you have issued the famous electronic receipts on the AT portal.

Use case: Lucas is a young French professional expatriated to Lisbon. He rents a room from a Portuguese host for €450 per month. Thanks to the registered contract and the receipts issued, Lucas will be able to deduct up to €900 from his Portuguese income tax in 2026. This is a huge increase in purchasing power for him.

At Roomlala, we notice that tenants are increasingly educated about these matters. By mentioning in your listing that your rental is declared and eligible for IRS deductions, you will attract serious, solvent profiles who are looking to settle in for the long haul. It is a win-win relationship.

The specific case of displaced students

Portugal attracts a huge number of students, both national and international. For Portuguese students who must leave their home town to study (the “estudantes deslocados”), the law provides for a particularly generous system that greatly facilitates room rentals.

If you rent your room to a displaced student (whose educational institution is located more than 50 km from their original tax residence), the student’s parents can deduct part of the rent as education expenses on their own IRS declaration, up to a ceiling of €300 per year.

Use case: The Silva family lives in Braga, but their daughter Sofia is going to study at the University of Lisbon. They rent a room from you for €350 per month. Because Sofia has the status of a displaced student, the Silva parents will be able to deduct up to €300 from their taxes for education expenses. For this to work, you must imperatively indicate on the finance portal that the contract is intended for a displaced student.

This student market is a real gold mine for hosts. On Roomlala, the demand for student housing is constant. By knowing these tax rules, you can reassure parents (who are often the guarantors and payers) and close your rentals in record time.

Traps to avoid and legal points of vigilance

The Porta 65 Jovem programme: An exclusion to be aware of

In your journey as a host, you will often hear about the “Porta 65 Jovem” programme. This is a very popular State financial aid in Portugal, intended to help young people aged 18 to 35 pay their rent. Many young tenants might ask you if your room is eligible for this programme.

It is crucial to be clear and precise: the Porta 65 Jovem programme is NOT applicable to the rental of individual rooms. According to IHRU (Instituto da Habitação e da Reabilitação Urbana) guidelines, only entire homes (frações autónomas) are eligible for this subsidy.

Use case: You are contacted on Roomlala by a young couple who wish to rent your large master bedroom. They ask you if they can use Porta 65 Jovem to pay for a portion of the €500 rent. As a knowledgeable host, you must explain to them that the law forbids this for rooms. This avoids misunderstandings, false hope, and last-minute cancellations.

We advise you to be transparent from the very first contact. You can compensate for this ineligibility by reminding the tenant that they will still benefit from the increased IRS deduction ceiling (the famous €900 in 2026), which remains a very attractive financial benefit.

Why choose Roomlala to secure your procedures?

Facing a legal and tax framework that is becoming more complex, renting a room can seem intimidating. Between 3-year contracts, registration on the AT portal, and receipt management, the host’s mental burden increases. This is exactly where our platform steps in to help lighten the load.

At Roomlala, we secure the first, most crucial step: the introduction and initial payment. We verify tenant profiles, secure the payment of the first month’s rent, and offer you an integrated messaging system to discuss legal modalities (such as the issuance of receipts) even before signing the lease.

Use case: By using Roomlala, you can filter requests to only retain tenants ready to commit to 3 years (to benefit from your 10% IRS rate). Once the booking is confirmed and the first payment is secured by us, you can serenely move on to drafting your rental contract in accordance with Portuguese law.

In conclusion, the housing crisis in Portugal has pushed the government to offer exceptional tax incentives in 2026. With a tax reduced to 10% for 3-year leases, long-term room rental has never been more profitable. By following best practices and using Roomlala to find the ideal tenant, you transform a simple empty room into a lasting, legal, and highly optimised source of income.