
In short
Until the estate is partitioned, the house belongs to the estate, and rights relating to the estate can only be exercised by all the heirs jointly (Portuguese Civil Code, Article 2091(1)). One heir alone cannot sell it. But no heir is bound to stay in co-ownership: any of them may demand partition at any time (Article 2101(1)). Without agreement, partition takes place through probate proceedings (inventário), in court or before a notary (Civil Code, Article 2102(2), and Code of Civil Procedure, Article 1083). The alternative is to sell one’s own share in the estate, subject to the other heirs’ pre-emption right (Articles 2124 and 2130). Meanwhile, the undivided estate pays the additional property tax (AIMI) at 0.7% on the value above EUR 600,000 (IMI Code, Articles 135-C and 135-F).
It is one of the most common deadlocks in the Portuguese property market. One heir wants to sell, another wants to keep the house, a third does not answer, and the property sits empty for years, deteriorating and paying tax. The law has a way out of each of these situations. The route chosen decides how much time and money is lost.
Before partition, who owns the house?
Succession opens at the moment of death (Civil Code, Art. 2031). Until partition, the estate is a separate pool of assets managed by the estate administrator (cabeça-de-casal) (Art. 2079). Each heir is entitled to a share of the estate, not to a specific part of each property. The practical consequence is in Article 2091(1): save where the law provides otherwise, rights relating to the estate can only be exercised jointly by all the heirs. Selling, letting long term or mortgaging the house requires everyone’s agreement.
Heirs who have not yet accepted also count. The right to accept an inheritance lapses ten years after the heir learns that they have been called to it (Art. 2059(1)).
The four routes
| Situation | Route | Provision |
|---|---|---|
| Everyone agrees | Partition at the registry office or before a notary; or a joint sale of the property, with the price shared | Civil Code, Art. 2102(1) |
| No agreement | Probate proceedings (inventário), requested by any heir, in court or before a notary | Civil Code, Arts. 2101(1) and 2102(2)(a); Code of Civil Procedure, Art. 1083 |
| One heir wants out now | Sale (or gift) of the hereditary share; the co-heirs have pre-emption if the buyer is a third party | Civil Code, Arts. 2124 and 2130 |
| Partition left the property in co-ownership | Action to divide common property; if the property is indivisible and there is no agreement, it is sold | Civil Code, Art. 1412; Code of Civil Procedure, Arts. 925 and 929 |
The heirs may also agree to keep the estate undivided for up to five years, renewable by a new agreement (Art. 2101(2)). This is useful where the aim is to let or add value to the property before selling.
How probate proceedings work without agreement
The inventário ends the joint ownership of the estate and partitions the assets (Code of Civil Procedure, Art. 1082). Whoever brings it may choose between the court and a notary’s office (Art. 1083(2)). If it is brought before a notary without everyone’s consent, heirs representing more than half of the estate may ask for it to be transferred to court, up to the end of the period for objections (Art. 1083(3)). In some cases the court is mandatory, for example where the proceedings depend on another court case or are brought by the Public Prosecutor (Art. 1083(1)).
The decisive moment is the meeting of interested parties. The judge must encourage an amicable solution. By unanimity, the heirs may allocate assets to each of them, draw lots or agree to sell all or part of the assets and share the proceeds (Art. 1111). Without agreement, the heirs bid against each other, in an auction-like process: the property goes to the highest bidder (Art. 1113(1) and (3)).
Anyone who wants to keep the house should arrange financing before the meeting. An heir who receives assets above their share pays the difference to the others in cash, and that excess is subject to property transfer tax (IMT) (IMT Code, Art. 2(5)(c)).
Selling only my share
An heir may dispose of their hereditary share without waiting for partition. The transaction follows the rules of the underlying contract (Art. 2124). If the share is sold or given in payment to a third party, the co-heirs have a pre-emption right on the same terms as co-owners. Where they have been notified to exercise it, the period is two months (Art. 2130). The sale of a hereditary share is subject to IMT (IMT Code, Art. 2(5)(c)). Whoever buys a share buys the heir’s position in the estate, not the house.
Taxes while the estate is undivided
Stamp duty and notifying the tax office. In succession on death, the tax obligation arises on the date succession opens (Stamp Duty Code, Art. 5(p)). The estate administrator must report the death to the tax office by the end of the third month following it (Art. 26(1) and (3)). The reference date is the date of death, and the period ends on the last day of the third following month: for a death in October 2026, the report must be filed by 31 January 2027. Spouses or de facto partners, descendants and ascendants are exempt from the 10% stamp duty on gratuitous acquisitions (Art. 6(e) and item 1.2 of the General Table). Other heirs pay that rate.
AIMI. For the additional property tax, an undivided estate represented by the estate administrator is treated as a legal person (IMI Code, Art. 135-A(2)). It benefits from a EUR 600,000 deduction (Art. 135-C(2)(b)) and pays 0.7% on the excess (Art. 135-F(1)). That treatment can be set aside, with each heir taxed on their share. To do so, the estate administrator declares all heirs and their shares between 1 and 31 March, and each heir confirms theirs between 1 and 30 April, on the Tax Portal (Art. 135-E(1) to (3)). Where the estate holds several high-value properties, this option may reduce the tax. Whether it pays off has to be worked out heir by heir.
Costly mistakes
- Letting it drag on. Every year of joint ownership adds AIMI on the estate and wear on the property. Over time, heirs die and the number of interested parties multiplies.
- Promising to sell or encumbering without everyone. Without the agreement of all heirs, the transaction is open to challenge by the others (Art. 2091).
- Selling a share to a third party without offering pre-emption. The co-heirs may come forward and exercise it (Art. 2130).
- Missing the reporting deadline. It runs from the date of death, not from the deed of succession.
Frequently asked questions
Can one heir block the sale of an inherited house in Portugal?
Before partition, yes: rights relating to the estate can only be exercised by all the heirs jointly (Civil Code, Article 2091(1)), and without everyone’s agreement there is no sale. But no heir can block it forever: any heir may demand partition (Article 2101(1)). In probate proceedings, if there is no agreement, the heirs bid for the property (Code of Civil Procedure, Article 1113).
Am I obliged to remain in the estate?
No. Any co-heir or the surviving spouse entitled to half of the marital property may demand partition whenever they wish, and that right cannot be waived. The heirs may only agree to keep the estate undivided for up to five years, renewable (Civil Code, Article 2101).
Are probate proceedings held in court or before a notary?
Before either, at the choice of the person bringing them or by agreement of all (Code of Civil Procedure, Article 1083(2)). If they are brought before a notary without everyone’s consent, heirs representing more than half of the estate may ask for transfer to court (Article 1083(3)). In some cases the court is mandatory (Article 1083(1)).
Can I sell only my share of the inheritance?
You may sell your hereditary share, that is, your position in the estate, not a specific part of the house (Civil Code, Article 2124). If the buyer is a third party, the other heirs have a pre-emption right, to be exercised within two months of being notified (Article 2130). The transaction is subject to IMT (IMT Code, Article 2(5)(c)).
Does an undivided estate pay AIMI?
Yes. It is treated as a legal person (IMI Code, Article 135-A(2)), has a EUR 600,000 deduction and pays 0.7% on the excess (Articles 135-C(2) and 135-F(1)). The heirs may set this treatment aside through declarations on the Tax Portal in March (estate administrator) and April (heirs) (Article 135-E).
What is the deadline to report a death to the tax office?
The estate administrator must file the report by the end of the third month following the death (Stamp Duty Code, Articles 5(p) and 26(3)). For a death in October, the deadline is the last day of the following January.
The firm handles partitions of estates with property, probate proceedings and sales of hereditary shares, including tax planning for the exit from joint ownership. Book a meeting.
Read also
Property taxes in Portugal: IMT, stamp duty, IMI and AIMI · Selling property without capital gains tax · Real estate lawyer in Margem Sul
Sources
- Civil Code — consolidated version (Arts. 1412, 2031, 2059, 2079, 2091, 2101, 2102, 2124, 2130)
- Code of Civil Procedure — consolidated version (Arts. 925, 929, 1082, 1083, 1111, 1113)
- Stamp Duty Code — consolidated version (Arts. 5, 6, 26 and item 1.2 of the General Table)
- IMI and IMT Codes — consolidated version (IMI Code, Arts. 135-A to 135-F; IMT Code, Art. 2)
Official Portuguese Gazette (Diário da República), consolidated versions; links checked on 17 October 2026. Always confirm the version in force on the date of your decision.
General information, updated on 17 October 2026. It does not replace an analysis of the specific case and is not legal advice.