Portugal 2026 Succession Reform: What the New Undivided Inheritance Rules Mean for Heirs and Selling Property

Portugal’s housing reform package, approved by the Council of Ministers in March 2026, introduces sweeping changes to how undivided inheritances in Portugal are managed, sold and resolved. For the first time, one or more heirs may trigger the sale of jointly inherited property after a defined two-year period of indivision, bypassing the long-standing deadlocks that have kept millions of properties off the market. This guide explains the new undivided inheritance rules, maps every practical option available to heirs, from voluntary buyouts to forced judicial sales, and sets out the tax consequences and procedural steps involved.

Whether you are a surviving spouse in Lisbon, an expat heir in the Algarve or an executor administering a rural estate in the Alentejo, the information below will help you decide what to do next.

What are undivided inheritances in Portugal?

Under Portuguese succession law, when a person dies, their estate passes to the legally recognised heirs. Until those heirs formally divide the assets, through agreement or court order, the estate remains in a state of herança indivisa (undivided inheritance). Every heir holds an abstract share of the whole estate rather than ownership of any specific asset. No single heir can sell, mortgage or renovate a particular property without the consent of the others.

The undivided phase begins after the habilitação de herdeiros, the notarial or court procedure that formally identifies who the heirs are and appoints a cabeça de casal (head of the estate). The head of the estate, usually the surviving spouse or the eldest heir, is responsible for administering the assets, paying debts and keeping the property in reasonable condition until partition is completed. This procedure is managed through a notary office or the civil registry, as described on the official government services page for habilitação de herdeiros, partition and registration of assets.

In practice, many estates in Portugal remain undivided for years or even decades. Heirs disagree, emigrate, lose contact or simply lack the resources to buy each other out. The problem is particularly acute in rural areas: government communications have cited millions of rural properties trapped in indivision, contributing to housing shortages, abandoned buildings and increased wildfire risk. The 2026 housing reform directly targets this bottleneck.

Forced heirship and the legítima

Portugal’s forced heirship rules (the legítima or reserva hereditária) guarantee that a portion of every estate must pass to the deceased’s spouse, descendants and, in certain cases, ascendants. A testator cannot freely disinherit these forced heirs. This framework shapes every partition negotiation because any sale or buyout must respect each forced heir’s minimum entitlement. The 2026 reform does not abolish forced heirship in Portugal but introduces procedural tools to break deadlock when heirs cannot agree on what to do with the property.

What changed in 2026, the housing reform and new undivided inheritance rules

The Portuguese Government approved a package of measures between March and April 2026 as part of a broader housing reform aimed at increasing the supply of available homes. The measures specifically targeting undivided inheritances were announced in the Council of Ministers communiqué of 12 March 2026 and further detailed in subsequent government approvals later that month. The key changes are summarised below.

• Two-year sale trigger. After an estate has remained undivided for two years, one or more heirs may initiate proceedings to sell the inherited property, even without the agreement of all co-heirs. This is the single most significant change to the undivided inheritance rules and directly addresses long-running deadlocks.
• Expedited judicial sale mechanisms. New procedural fast-tracks are designed to accelerate judicial partition and forced sale processes, reducing the court backlogs that previously made litigation impractical for many families.
• Authenticated private document for voluntary indivision. Heirs who agree to keep the estate undivided may now formalise that agreement through an authenticated private document for a maximum period of five years, providing legal certainty without requiring a full notarial deed.
• Succession arbitration. The reform introduces or strengthens mechanisms for succession-specific arbitration and mediation, offering heirs a faster and less adversarial alternative to court proceedings.
• Enhanced powers for the head of estate. The cabeça de casal receives clearer authority to manage, maintain and, where authorised, dispose of assets, reducing the administrative paralysis that typically accompanies multi-heir estates.

Legislative status note: As of May 2026, the measures have been approved by the Government and confirmed in official communications on gov.pt. Heirs and practitioners should monitor the Diário da República for the definitive decree texts and precise procedural rules that will govern implementation.

Timeline of key legislative dates

Can an heir force a sale? The two-year rule and procedural routes

Yes. Under the announced 2026 measures, a single heir, or a group of heirs, may initiate the sale of inherited property once the estate has remained undivided for at least two years. This represents a fundamental shift in Portuguese succession practice, where previously all co-heirs needed to agree, or a lengthy judicial partition had to be pursued with no guaranteed timeline.

Who may apply and when

Any heir with a recognised share in the undivided estate may apply. The two-year period is counted from the date of the deceased’s death (or, where the decree specifies, from the date of the habilitação de herdeiros). Once the threshold is reached, the applying heir files for a forced sale through the competent court or, where available, through the expedited administrative channels introduced by the reform.

Likely judicial tests

Industry observers expect courts to evaluate several factors when deciding whether to authorise a forced sale of heirs’ property in Portugal:

• Impracticality of co-ownership. Evidence that the property cannot be reasonably maintained, occupied or administered by the co-heirs acting together.
• Deadlock among heirs. Proof that attempts to negotiate a voluntary partition or buyout have failed.
• Risk of deterioration. Documentation showing that the property is at risk of physical decline, fire hazard or regulatory non-compliance due to inaction.
• Proportionality. The court will balance the interests of the heir requesting the sale against those of any co-heir who wishes to retain the property, particularly where the property is a primary residence.

Step-by-step: if you are an heir and want to sell inherited property in Portugal

1. Confirm the two-year threshold. Verify that at least two years have elapsed since the death or the completion of the habilitação de herdeiros.
2. Notify all co-heirs in writing. Send a formal notice to every co-heir, proposing a voluntary sale or buyout and setting a reasonable deadline for response.
3. Obtain a professional valuation. Commission an independent property valuation to establish fair market value, this will be essential for any court filing or negotiation.
4. File the judicial petition. If co-heirs do not respond or refuse, file for a forced sale or judicial partition through the competent court, attaching the habilitação, valuation report, proof of notifications and evidence of deadlock.
5. Engage a specialist succession lawyer. Given the complexity of forced heirship protections and the new procedural rules, legal representation is strongly recommended. Consult the Portugal lawyer directory to find a qualified practitioner.

Options for heirs, buyout, sale, partition, mediation and administration

The 2026 reform does not eliminate the existing options; it adds new tools and accelerates existing ones. Heirs should understand the full range of possibilities before deciding on a course of action.

Voluntary buyout

One or more heirs purchase the shares of the others at an agreed price, consolidating ownership. This is usually the fastest and least contentious route. It requires a professional valuation, agreement on price, and notarisation of the transfer. Financing is available through Portuguese banks, though lenders typically require a completed habilitação de herdeiros and clear title documentation. A voluntary buyout can often be completed within three to six months.

Agreed sale to a third party

All heirs agree to sell the property on the open market and divide the proceeds according to their respective shares. The sale must be executed by public deed or authenticated private document, and all heirs (or their representatives holding powers of attorney) must sign. This route avoids court involvement entirely and is the most cost-effective option when consensus exists.

Judicial partition and forced sale

Where agreement is impossible, any heir may petition the court for judicial partition. The court appoints a valuer, determines the shares and, if the property cannot be physically divided, orders a sale, either by private negotiation or public auction. The 2026 expedited mechanisms are designed to shorten this process, which under previous practice could take several years. Early indications suggest that the new fast-track procedures may reduce timelines to twelve to eighteen months in straightforward cases.

Succession arbitration and mediation

The reform encourages heirs to use arbitration and mediation before resorting to full litigation. Mediation is typically faster (often concluded within two to four months) and significantly cheaper than court proceedings. Arbitration produces a binding award and may be particularly useful where heirs are dispersed across different countries. Both options preserve family relationships more effectively than adversarial litigation.

Taxes and costs when inheriting or selling property in Portugal

Understanding the tax consequences is essential before any heir decides to sell inherited property in Portugal. The principal taxes and costs are Stamp Duty (Imposto do Selo), Capital Gains Tax and notary, registry and legal fees.

Imposto do Selo, Stamp Duty on inheritance

When assets are transferred on death, Stamp Duty applies at a rate of 10 % on the taxable value of Portuguese real estate. However, there is an important exemption: transfers to the surviving spouse, descendants (children, grandchildren) and ascendants (parents, grandparents) are exempt from Imposto do Selo. This means that in the vast majority of family successions, no Stamp Duty is payable on the inheritance itself. Transfers to siblings, nephews, nieces or unrelated beneficiaries are taxed at 10 %.

Capital Gains Tax on the sale of inherited property

When inherited property is subsequently sold, Capital Gains Tax (mais-valias) applies to the difference between the sale price and the acquisition value. For inherited assets, the acquisition value is typically the tax-assessed value (valor patrimonial tributário or VPT) at the date of death, adjusted for inflation using officially published coefficients. Only 50 % of the net gain is taxable for Portuguese tax residents; the applicable rate is the heir’s marginal IRS rate. Non-residents face different rules, as explained below.

Worked example 1, Algarve coastal apartment

An heir inherits a one-bedroom apartment in Albufeira with a VPT of €120,000 at the date of death. The heir is a direct descendant, so no Stamp Duty is payable on the inheritance. Two years later, the heir sells the property for €200,000. The gross capital gain is €80,000 (€200,000 minus €120,000). For a tax-resident heir, 50 % of the gain (€40,000) is added to their annual taxable income and taxed at their marginal IRS rate. Notary and registry fees for the sale typically amount to €1,000–€2,000. The heir should also budget for legal fees and the cost of the independent valuation.

Worked example 2, rural plot in the Alentejo

Three siblings inherit a rural plot with a VPT of €15,000. As direct descendants, they pay no Imposto do Selo. After three years of indivision, two siblings invoke the two-year rule and the property is sold at judicial auction for €35,000. The gross capital gain is €20,000. Each sibling’s share of the gain (approximately €6,667) is taxed according to their individual circumstances. Court fees for the judicial sale, valuation costs and legal representation may absorb a meaningful portion of the proceeds, a factor that should be weighed carefully before pursuing forced sale of a low-value property.

Non-resident heirs

Non-resident heirs who sell inherited property in Portugal are subject to Capital Gains Tax on the full gain (not the 50 % reduction available to residents), although EU/EEA residents may elect to be taxed under the resident regime. A tax representative in Portugal may be required. Non-residents should also check whether a double taxation agreement between Portugal and their country of residence provides relief.

Practical checklist: how to prepare to sell or start a judicial sale

The following checklist covers the documents, steps and approximate timelines involved in selling inherited property under the new undivided inheritance rules in Portugal.

Actions for expat heirs

If you are an heir living outside Portugal, the following additional steps are critical:

• Obtain a Portuguese tax identification number (NIF). This is mandatory for any property transaction, tax filing or court proceeding in Portugal. It can be obtained through a tax representative or in person at a local tax office (Serviço de Finanças).
• Appoint a local lawyer and grant a power of attorney (procuração). A notarised power of attorney allows your lawyer to act on your behalf in habilitação proceedings, negotiations, court filings and the eventual sale.
• Check for existing debts or encumbrances on the property. Unpaid municipal taxes (IMI), mortgages or liens must be resolved before a sale can proceed.
• Verify double taxation treaty provisions. Confirm whether your country of residence has a treaty with Portugal that affects how capital gains on inherited property are taxed.

What judges and courts will look at, likely judicial tests and evidence

Where an heir applies for a forced sale under the new rules, the court will examine whether continued indivision is genuinely impractical and whether a sale is proportionate to the interests of all parties. Legal commentators have analysed the likely judicial approach in light of existing Portuguese case law and the objectives of the housing reform.

Heirs seeking a court-ordered sale should prepare the following types of evidence:

• Proof of failed negotiations. Correspondence showing attempts to reach agreement with co-heirs, including formal notices and any responses received.
• Property condition reports. Photographs, surveyor reports or municipal inspection notices documenting deterioration, structural risk or fire hazard.
• Financial evidence of maintenance burden. Receipts for taxes, insurance, repairs and utilities paid by the applying heir, demonstrating disproportionate financial responsibility.
• Evidence of co-heir absence or non-cooperation. Proof that co-heirs are unreachable, have emigrated without leaving contact details, or have repeatedly failed to respond to communications.
• Market evidence. The independent valuation report, comparable sales data and, where relevant, evidence that delay is causing the property to lose value or miss market opportunities.

The likely practical effect of the reform is that courts will be more willing to order sales once the two-year threshold is met, particularly where the property is uninhabited or deteriorating. However, judges are expected to exercise caution where a co-heir uses the property as their primary residence or where forced heirship protections are engaged.

Conclusion, navigating undivided inheritances in Portugal after the 2026 reform

The 2026 housing reform marks the most significant change to the handling of undivided inheritances in Portugal in decades. The introduction of the two-year sale trigger, expedited judicial mechanisms, voluntary indivision agreements and succession arbitration gives heirs practical tools to break deadlocks that have trapped properties for years. At the same time, the reform preserves the forced heirship protections that are central to Portuguese succession law, meaning that courts will continue to balance competing interests carefully.

For heirs, the message is clear: prepare now. Gather your documents, complete the habilitação de herdeiros if you have not already, obtain a professional valuation and engage a specialist succession lawyer. Whether you intend to buy out co-heirs, negotiate an agreed sale, pursue mediation or invoke the new forced-sale provisions, early preparation is the single most effective way to protect your interests and reduce costs.

This article will be updated when the definitive decree texts are published in the Diário da República. Heirs and practitioners should monitor official government publications for the final procedural rules, transitional provisions and any amendments to the measures described above.

Last updated: 17 May 2026

Sources

1. Portuguese Government, Council of Ministers communiqué (12 Mar 2026)
2. gov.pt, Novas medidas para aumentar oferta de habitação (31 Mar 2026)
3. Idealista, Changes to inheritance law in Portugal (8 Apr 2026)
4. LFS Advogados, Housing reform: undivided inheritances (Apr 2026)
5. MLGTS, Legal Alert: Heranças indivisas e vendas de imóveis (Mar/Apr 2026)
6. gov.pt, Habilitação de herdeiros, partilha e registo dos bens
7. Essential Business, Will inheritances can remain undivided for five years if heirs agree (27 Apr 2026)