The recent Uniformisation Judgment of the Portuguese Supreme Administrative Court clarified that the sale of an undivided inheritance share to a third party does not qualify as a “onerous transfer of real rights over immovable property” for capital gains purposes. While the ruling addressed a specific issue, it has reignited a broader debate with direct relevance to the discussion on inheritance tax in Portugal.
In particular, where the Tax Authority has argued that equalisation payments (“tornas”) made in the context of an estate partition may trigger capital gains taxation, an uncomfortable question emerges: can the internal adjustment of inheritance shares become a new point of tax incidence, effectively signalling the indirect return of inheritance tax in Portugal under another label?
Legal Context: Estate Partitions and Equalisation Payments
One of the most sensitive and often unexpected scenarios arises in a post-death estate partition where a single heir is allocated the entire property and compensates the remaining heirs financially.
This is the classic structure:
The estate includes one relevant immovable asset.
One heir receives the property in full.
The other heirs receive monetary compensation (“tornas”) corresponding to the difference between the asset’s value and their respective inheritance shares.
The tax issue surfaces at this precise moment. The Portuguese Tax Authority has, on several occasions, maintained that the heir receiving tornas, and, in some interpretations, even the heir waiving them, may be realising a taxable capital gain under Category G of the Personal Income Tax Code.
The legal question is deceptively simple but technically demanding:
Does the receipt of tornas in an inheritance partition constitute an “onerous transfer of real rights over immovable property” under the Portuguese Personal Income Tax Code, thereby generating taxable capital gains?
Or are we merely dealing with a technical mechanism for balancing inheritance shares, an internal patrimonial adjustment without the nature of a “price”, and therefore outside the closed list (numerus clausus) of taxable capital gains events?
This debate extends beyond technical tax classification. It touches the structural limits of taxation and, indirectly, the historical abolition of inheritance tax in Portugal.
Historical Background: The Abolition of Inheritance Tax in Portugal
For decades, Portugal levied a traditional inheritance tax, formally known as the Tax on Successions and Donations. It applied to gratuitous transfers of assets, whether by death or by gift, reflecting the classical European approach to taxing wealth acquired without consideration.
This changed fundamentally with the 2003/2004 tax reform. Decree-Law no. 287/2003 abolished the inheritance tax and replaced it with a Stamp Duty regime on gratuitous transfers. Crucially, transfers upon death or by gift between spouses, descendants and ascendants were exempted.
In practical terms, this eliminated inheritance tax in Portugal for direct family transmissions. The political rationale at the time was explicit: the tax was considered socially burdensome, economically inefficient, and administratively complex, particularly where it applied to assets that had already been taxed during the deceased’s lifetime.
Since then, Portugal has been one of the few European jurisdictions without inheritance tax on direct family successions.
It is precisely against this background that the current debate on tornas becomes symbolically and legally significant.
The Tax Authority’s Position: Tornas as a Hidden Sale?
Before jurisprudence consolidated, taxpayers were already confronted with binding rulings from the Tax Authority arguing that estate partitions involving tornas may qualify as onerous transactions.
In Binding Ruling no. 1351/2018 (June 22, 2018), the Tax Authority stated that tornas may effectively represent the alienation of a fundamental right over immovable property. Accordingly, they would constitute a taxable capital gain, even where the heir ultimately waives the compensation.
This reasoning equates tornas to a purchase price and treats the partition as a partial sale between co-heirs.
Later guidance went even further, asserting that renouncing tornas does not eliminate the transaction’s allegedly onerous nature. The logic is that an economically measurable right existed and was voluntarily relinquished, thus generating taxable income.
The practical consequence of this interpretation is destabilising: heirs may face taxation without an actual sale, without a negotiated price, and in some cases without receiving any effective economic gain.
A moment traditionally regarded as a neutral patrimonial reorganisation following death is recharacterised as a taxable event.
Jurisprudential Reaction: Partition Is Not a Sale
Portuguese jurisprudence has responded firmly by invoking the principle of tax typicity.
Category G capital gains taxation operates on a closed list of taxable events. There is no general clause taxing any increase in wealth. The specific factual situation must fall squarely within the legal definition. If it does not, taxation cannot arise, primarily not through analogy or functional requalification.
In Arbitration Decision no. 1162/2024-T (July 3, 2025), the civil-law foundations of estate partition were carefully reaffirmed:
While the estate remains undivided, each heir holds a right to a quota of an autonomous patrimonial mass, not to individual assets.
The partition has a declaratory, not constitutive or translative nature. Each heir is deemed to acquire their assets directly from the deceased, retroactively to the date of death.
The partition does not constitute an onerous transfer of fundamental rights under Article 10(1)(a) of the Personal Income Tax Code.
The Supreme Administrative Court, in case no. 305/11.5BELRS (April 7, 2021) reinforced this reasoning. The Court held that:
Partition is not equivalent to a contract of sale.
Tornas are not a “price,” but a compensatory mechanism balancing inheritance shares.
The value attributed to property in the partition is irrelevant for capital gains calculation.
The excess share does not constitute a taxable acquisition in the absence of an explicit statutory provision.
The conclusion is unequivocal: without a legally typified onerous transfer, there is no taxable capital gain.
This jurisprudence rejects the notion that partitions are disguised sales between co-heirs. In a system governed by strict legality, tax liability cannot be created through expansive reinterpretation of civil-law concepts.
Is This an Indirect Revival of Inheritance Tax in Portugal?
The debate over tornas transcends technical classification. It raises constitutional principles:
The principle of tax legality holds that the essential elements of taxation must be established by law.
Prohibition of analogy in tax incidence.
Requirement of strict typicity.
Legal certainty and protection of legitimate expectations.
For more than two decades, estate partitions were considered neutral for income tax purposes. An administrative reclassification that transforms internal equalisation into a taxable capital gain disrupts predictability and undermines succession planning.
If the mere balancing of inheritance shares can be converted into a taxable event, even where tornas are waived, the boundary between neutral succession and indirect inheritance taxation becomes blurred.
The issue is not whether patrimonial increases should be taxed in principle. It is who has the authority to decide: the legislature, through clear statutory language, or the Tax Authority, through expansive interpretation?
Recent case law clearly favours the former.
Conclusions: Inheritance Tax in Portugal Cannot Reappear by Interpretation
The taxation of tornas under personal income tax is ultimately a matter of legality, not administrative discretion.
Under civil law:
Estate partition is not a sale between co-heirs.
Tornas do not constitute a purchase price.
The operation is an internal equalisation of inheritance shares, not an onerous transfer of fundamental rights.
Capital gains taxation is based on a closed list of taxable events. In the absence of explicit statutory provision, taxation cannot arise from economic analogy or interpretative expansion.
The consistent jurisprudential trend reinforces that:
Without a legally defined onerous transfer, there is no Category G capital gain.
The creation or reintroduction of inheritance tax in Portugal is a matter reserved for the legislature.
The broader institutional question remains compelling:
In a tax system founded on strict legality, can a tax effectively return through interpretation when the legislature has abolished it?
For now, the courts appear to answer decisively in the negative.
This article is provided for general informational and academic purposes only and does not constitute legal, tax, or professional advice. The analysis presented reflects an interpretation of Portuguese tax law and jurisprudence as of the date of publication and may not apply to specific factual circumstances.
Portuguese tax legislation, administrative practice, and case law, including matters concerning inheritance tax in Portugal, estate partitions, and capital gains taxation, are subject to change, reinterpretation, or legislative amendment. The position of the Portuguese Tax Authority may differ from judicial decisions referenced herein, and outcomes may vary depending on the specific facts of each case.
Readers should not act or refrain from acting based on this article without obtaining tailored advice from a qualified lawyer or certified tax advisor duly registered in Portugal. No liability is accepted for any loss or damage arising from reliance on the information contained herein.
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