Housing crisis in Portugal: 2026 tax incentives for room rentals

The housing crisis in Portugal has been a major concern for several years. Faced with soaring real estate prices in Lisbon, Porto, or even the Algarve, finding affordable housing has become a real ordeal for young professionals and students. At Roomlala, we closely monitor these developments to best support you. This is why we welcome with great interest the recent government measures aimed at easing this strained market.

On May 20, 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 unoccupied room, this is the perfect time to consider a homestay. Not only are you helping to solve a national crisis, but you also benefit from significant financial advantages.

Read also: Regulations in British Columbia: The long-term room rental boom in 2026, Alojamento Local and supply-constrained areas: The new rules boosting long-term rentals in Portugal in 2026 and Rental fraud in Spain: The new 2026 rules that 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 rental income to the benefits you can highlight to your future tenants, we explain how to take advantage of these new rules. Get ready to optimize your taxes while renting out your room safely with Roomlala.

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

The drastic reduction of the IRS from 25% to 10%

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

To benefit from this advantageous rate of 10%, the monthly rent for the room (or property) must not exceed the ceiling of €2,300. This ceiling has been designed to include the vast majority of homestay rentals, even in the most sought-after neighborhoods of Lisbon or Cascais. The government's objective is clear: to reward hosts who practice 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 apartment in Porto and rents a room to a young professional for €400 per month. Before 2026, on her €4,800 in 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 largely compensates for any moderation in your rent, while guaranteeing you find a tenant much faster in the face of ever-increasing demand.

Strict conditions on the lease duration (minimum 3 years)

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

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

Use case: João, a retiree living in Faro, wishes to rent the room of his son who has gone 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 rate of 10% for the entire effective duration of the rental, because the initial contract respected the formal condition imposed by the law.

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

Declaring your income and optimizing your taxes in Portugal

Category F and registration on the tax portal (AT)

Legality is the keyword to benefit from these incentives. In Portugal, income from renting a room falls under Category F (Rental Income / Rendimentos prediais). For the tax authority (Autoridade Tributária e Aduaneira - AT) to apply the famous 10% rate, you must follow a rigorous administrative procedure.

It all starts with registering your lease agreement. You are required to declare the contract on the Portal das Finanças (the AT portal) within 30 days of its signing. 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 will have to issue monthly electronic receipts (recibos de renda eletrónicos) 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 mandatory).
• Issue the electronic receipt upon each 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. As soon as the keys were handed over, she logged into the AT portal, registered the 3-year lease, and generated her first receipt. Thanks to this rigor, the Portuguese tax authorities will automatically apply the reduced 10% rate during her next tax return. We advise you to be accompanied by an accountant (contabilista) for the first year to avoid any entry errors.

Be careful with non-deductible expenses

This is a crucial point of vigilance that we want to emphasize 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 day-to-day management.

However, from a tax perspective in Portugal, current consumption charges (water, electricity, gas) are not deductible from your Category F rental income. Only certain structural expenses (such as condominium charges, IMI, or building maintenance work) can be deducted if you were renting 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. Tax-wise, Pedro will be taxed on the full €500, not €450. He will not be able to deduct his EDP (electricity) or EPAL (water) bills from his rental income.

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

The benefits for your tenants: A golden rental argument

Increase in tax deductions for classic tenants

The 2026 incentives do not stop with hosts. The government has also thought of tenants, which constitutes a fantastic sales pitch 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 rents for tenants increases to €900 for the 2026 tax year, and will even reach the symbolic mark of €1,000 in 2027. This means that 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 expatriate in Lisbon. He rents a room from a Portuguese host for €450 per month. Thanks to the registered contract and the issued receipts, Lucas will be able to deduct up to €900 from his Portuguese income tax in 2026. It is a huge gain in purchasing power for him.

At Roomlala, we notice that tenants are increasingly educated on these issues. By mentioning in your listing that your rental is declared and eligible for IRS deductions, you will attract serious, solvent profiles who are eager to settle in for the long haul. It's 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 hometown to study (the "estudantes deslocados"), the law provides a particularly generous mechanism 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 a portion 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 leaves 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 costs. For this to work, you must imperatively indicate on the tax 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.

Pitfalls to avoid and legal points of vigilance

The Porta 65 Jovem program: An exclusion to know about

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

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

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

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

Why choose Roomlala to secure your procedures?

Faced with 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 mental load for the host increases. This is exactly where our platform steps in to relieve you.

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

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

In conclusion, the housing crisis in Portugal has pushed the government to offer exceptional tax incentives in 2026. With 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 long-term, legal, and highly optimized source of income.