Portugal abolished inheritance tax in 2004 and replaced it with a 10% imposto do selo that exempts spouses, descendants, and ascendants entirely. That generosity ends the moment a Portuguese family owns Spanish property. Spanish IHT applies to Spanish-situs assets and, where the heir is Spanish-resident, to worldwide assets — regardless of how Portugal treats the same transfer.
Portuguese and Spanish families are the two great Iberian peninsular neighbours, with centuries of overlapping history and a long tradition of cross-border property ownership, mixed marriages, and dual residencies. Yet the tax and succession systems are strikingly different. Portugal abolished inheritance tax (imposto sucessório) in 2004 and replaced it with imposto do selo (stamp duty) at a flat 10% — with a complete exemption for transfers to spouse, descendants, and ascendants. Spain, by contrast, still operates a progressive IHT of 7.65% to 34% before multipliers, with heavy reliance on regional bonificaciones to deliver the effective relief.
There is no bilateral inheritance tax treaty between Portugal and Spain. The 1993 Portugal–Spain income tax convention covers income and capital but does not extend to inheritance. Each country applies its own law independently, with unilateral relief provided by Spanish domestic law (Article 23 Ley 29/1987) crediting Portuguese tax paid on the same assets. For Portuguese direct-line heirs this unilateral credit is rarely useful because Portugal charges them nothing — Spain collects its full IHT on Spanish assets with no Portuguese offset.
Portuguese succession law also protects forced heirs through legítima, codified in Articles 2156 to 2178 of the Código Civil Português. Descendants, the surviving spouse, and ascendants (where there are no descendants) are legitimários and cannot be disinherited without just cause. The reserved share is generally two-thirds of the estate when there are legitimários; one-half when the only legitimário is a single ascendant. Under Brussels IV (EU Regulation 650/2012) a Portuguese national habitually resident in Spain can elect Portuguese law to govern succession, keeping the familiar Portuguese framework in place.
This page explains how Portuguese and Spanish succession and tax rules interact, when Brussels IV election of Portuguese law is the right move, how Portugal's imposto do selo works in practice, and how Platinum Legal Spain designs Portuguese-expat estate plans that exploit Portugal's generosity while neutralising Spanish exposure through regional bonificaciones. It covers Portuguese residents owning Algarve-style holiday property in Spain (typically in Huelva, Badajoz, or Andalusia more broadly), Portuguese nationals who have moved to Madrid or Barcelona for work, mixed Portuguese–Spanish couples, and the growing population of Portuguese under the non-habitual resident (NHR) regime winding down and considering Spanish alternatives.
Portuguese estate planning in Spain runs on four rules: Portugal's generous direct-family exemption does not cross the border; Spain taxes Spanish-situs assets in full; Brussels IV lets you elect Portuguese law; regional bonificaciones deliver the real Spanish relief.
Only three Spanish IHT treaties exist: France 1963, Italy 1977, Germany 1966. Portugal is not among them. Relief between the two countries is unilateral (Article 23 Ley 29/1987) and flows only one direction — Spain credits Portuguese tax paid, which for direct heirs is zero.
How unilateral credit worksPortugal abolished imposto sucessório in 2004. Transfers on death now attract imposto do selo at 10% of asset value — but spouse, descendants, and ascendants are completely exempt. Siblings, cousins, unrelated heirs pay the 10%.
Portuguese positionEU Regulation 650/2012 allows a Portuguese national habitually resident in Spain to elect Portuguese succession law. This preserves Portuguese legítima and displaces Spanish legítima, subject to narrow public policy limits.
Portuguese-law election draftingPortuguese Código Civil Articles 2156–2178 reserve two-thirds of the estate for legitimários (spouse, descendants, and where there are no descendants, ascendants). One-half if the only legitimário is a single ascendant. Free quota is the balance.
Forced heirship coordinationSince the 2014 ECJ ruling, Portuguese EU-national heirs access the same regional bonificaciones as Spanish residents. Andalusia 99%, Madrid 99%, Valencia 99% Group I/II, Murcia 99%, Balearics up to 100% Group I. Design the plan around the regional residence of the Spanish property.
Regional planningPortugal's Non-Habitual Resident regime closed to new applicants in 2024. Existing NHRs whose ten-year window is expiring often consider Spanish alternatives — Beckham Law, Canary Islands ZEC, or simple residence. Coordinate the move with estate planning before residency triggers Spanish worldwide IHT.
Cross-border residencyThe absence of a Portugal–Spain IHT treaty is the single most important fact for Portuguese families with Spanish property. Portuguese families often assume their domestic IHT exemption somehow protects them in Spain. It does not. A Portuguese parent resident in Lisbon leaving a Marbella flat to a Portuguese-resident child faces Spanish IHT on the Spanish flat at whatever the Andalusian regional regime delivers (99% bonificación, but still payable on the 1% residue plus the ITP transfer on the property value). Portugal charges nothing and therefore credits nothing.
Portuguese legítima is structurally similar to Spanish legítima but more generous to the spouse. Where there are descendants, the Portuguese spouse inherits alongside the children as a legitimário; the spouse's share is never less than one-quarter of the estate. Spanish legítima gives the spouse only a usufructo over the tercio de mejora. For mixed Portuguese–Spanish couples, a Brussels IV election of Portuguese law typically protects the spouse better — provided the election is drafted correctly.
Portuguese residents often hold assets through Portuguese sociedades por quotas (LDA) or sociedades anónimas (SA). When these own Spanish real estate or Spanish subsidiaries, the situs analysis matters: Spain applies IHT to shares of companies deriving their value principally from Spanish real estate (anti-avoidance under Article 18 Ley 29/1987). We model this on every Portuguese corporate holding structure.
We establish civil and tax residence under Spanish and Portuguese rules, map every asset by situs (Portuguese property, Spanish property, movable assets, pensions), and identify which country has taxing rights on each item under unilateral rules.
We draft a Portuguese will (testamento público at a Cartório Notarial) with a Brussels IV election of Portuguese law, and a Spanish will limited to Spanish assets that defers to the Portuguese-law election. Forced-heir shares are calculated under Portuguese legítima.
We model Portuguese imposto do selo (usually zero for direct heirs), Spanish national IHT, the regional bonificación applicable to the Spanish property's autonomous community, and the unilateral credit. Direct heirs typically have no Portuguese offset to claim.
We handle the Spanish Modelo 650 within 6 months (extendable), the Portuguese participação de óbito at Finanças, and the coordinated notarial escritura de partilha where assets straddle the border. Bank release, property registration, and Portuguese predial updates follow.
Portugal's imposto do selo (stamp duty) is codified in the Código do Imposto do Selo. Verba 1.2 of the Tabela Geral applies to gratuitous transfers on death at 10% of asset value. Article 6, paragraph e, exempts transfers to spouse, descendants (filhos, netos, bisnetos) and ascendants (pais, avós). This exemption applies only to the gratuitous portion — if there are debts attached to the property, the transfer of those debts can itself trigger imposto do selo at different verbas.
The 10% rate applies to siblings (irmãos), cousins, uncles and aunts, nieces and nephews, partners in a união de facto that has not been formally registered for two years, and unrelated beneficiaries. There are no tapering allowances — the 10% applies from the first euro. Payment is due within six months of the deceased's death (or within 30 days of the Portuguese succession declaration, whichever is later).
Portuguese succession procedure runs through the cabeça de casal (head of the estate), typically the surviving spouse or eldest descendant. The participação de óbito must be filed at Finanças within three months of death. A formal escritura de partilha at a Cartório Notarial (or an online habilitação de herdeiros through the IRN) then divides the estate among legitimários and any free-quota beneficiaries.
Portuguese legítima (Código Civil Articles 2156–2178) reserves two-thirds of the estate when descendants or descendants-plus-spouse are legitimários. The spouse alone takes half. Ascendants alone take one-third; ascendants-plus-spouse take two-thirds. Legitimários who are disinherited without just cause (causes are listed in Article 2166 and are narrower than under Spanish law) can bring an acção de redução de liberalidades inoficiosas to reduce gifts or legacies that exceed the free quota.
Spanish legítima is looser in some respects (the testator can direct the mejora among descendants) and tighter in others (the spouse has only usufructo rights). Brussels IV determines which system applies substantively. A Portuguese national habitually resident in Spain who elects Portuguese law keeps legitimários and free-quota rules intact. Spanish courts recognise the election and apply Portuguese law, subject to orden público exceptions that are rarely triggered in practice.
The Spanish unilateral credit under Article 23 Ley 29/1987 allows deduction of the lesser of (a) actual foreign IHT paid and (b) the Spanish IHT attributable to the foreign-situs asset. For Portuguese direct heirs this is zero — Portugal exempted them. The credit matters only for Portuguese siblings or unrelated heirs who paid the Portuguese 10% and now face Spanish Group III/IV IHT. Even then, the Spanish figure is typically higher, so the credit covers only part of the Spanish liability.
Regional bonificación access for Portuguese EU-national heirs is identical to that for Spanish or any other EU-national heirs since the 2014 ECJ ruling (Commission v Spain, C-127/12) and the subsequent 2018 Spanish domestic extension to non-EU/EEA residents. A Portuguese heir resident in Porto inheriting a Málaga flat from a Portuguese parent claims Andalusia's 99% Group I/II bonificación directly on Modelo 650.
Portuguese NHR (Regime do Residente Não Habitual) was Portugal's flagship expat tax regime from 2009 to 2024, offering ten years of favourable income tax treatment for new Portuguese residents. Portugal closed the regime to new applicants from 2024 (replaced by the narrower IFICI regime for scientific and technical professions). Existing NHRs complete their ten-year windows and then face full Portuguese IRS rates. Many consider Spain as the next step — particularly Spain's Beckham Law (Article 93 LIRPF) for new Spanish arrivals with a six-year ring-fence of foreign-source income.
Portuguese pension death benefits fall under a mix of rules. Segurança Social survivor pensions (pensão de sobrevivência) are outside imposto do selo. Private PPR (Plano Poupança Reforma) payouts to nominated beneficiaries are also outside imposto do selo when the beneficiary is in Group I/II. For Spanish-resident deceased persons, Spain typically includes these amounts in the IHT base even where Portugal treats them as ring-fenced — the Spanish tax residence override is absolute.
Portuguese real estate held by non-residents attracts IMI (Imposto Municipal sobre Imóveis) annually, AIMI (Adicional ao IMI) on Portuguese property portfolios exceeding €600,000, and IMT (Imposto Municipal sobre Transmissões) on purchase. None of these transfer-tax cousins of imposto do selo matter for the inheritance calculation directly, but they shape the economics of holding Portuguese property through a Spanish SL or Portuguese LDA.
Portugal exempts direct heirs entirely. Spain does not. The whole plan is about neutralising that asymmetry.
Request a Portuguese Estate ConsultationParents resident in Spain with children in Portugal; non-resident property owners leaving Spanish assets to heirs abroad; surviving spouses, siblings, aunts and uncles, grandparents — every cross-border configuration follows a different rulebook.
Both Portuguese-resident. Algarve flat €350k and Huelva villa €450k. On first death, Portuguese imposto do selo exempts descendants; Spanish IHT on the Huelva villa attracts Andalusia's 99% bonificación for Group I/II heirs. Net Spanish IHT well under €500.
Porto engineer relocated to Madrid in 2020, now Spanish-resident. Madrid flat €550k, Porto family home €400k. Brussels IV election of Portuguese law keeps Portuguese legítima. Madrid's 99% Group I/II bonificación applies. Portugal exempts descendants on the Porto home.
Ten-year NHR window closing 2026. Considering Spanish Beckham regime. We plan the move to coincide with civil residence change, ensure Spanish wills and Brussels IV election are in place before Spanish tax residence triggers, and time property transfers correctly.
Portuguese husband, Spanish wife, resident in Sevilla. Portuguese family flat in Coimbra, Spanish family home. Husband elects Portuguese law; wife's Spanish estate follows Spanish law. Coordinated wills prevent conflict; Andalusia 99% applies to the Spanish home.
Childless Portuguese sister inheriting from Portuguese brother resident in Málaga. Group III heir — no regional bonificación in Andalusia for siblings. Portuguese 10% imposto do selo applies. Unilateral credit on Spanish side for Portuguese tax paid.
Lisbon SA holding 100% of Spanish SL that owns Valencia property. On Portuguese owner's death, Portuguese imposto do selo exempts descendants on the SA shares; Spanish IHT applies to the SL shares under Article 18 (shares deriving value from Spanish real estate). Valencia 99% Group I/II bonificación applies.
Portugal's direct-family exemption applies only to the Portuguese imposto do selo calculation. Spanish IHT is a separate tax administered entirely by Spain. Every Spanish-situs asset needs Spanish IHT planning regardless of the Portuguese treatment.
A Portuguese testamento público is valid in Spain under Brussels IV, but a short Spanish will limited to Spanish assets speeds registration dramatically — weeks instead of months at the Registro de la Propiedad.
Participação de óbito is due at Finanças within three months of death. This is separate from the Spanish Modelo 650 six-month window. Both deadlines must be tracked; missing either triggers Portuguese or Spanish surcharges.
Portuguese law guarantees the spouse a minimum one-quarter share where there are descendants, even if the deceased tried to leave more to the children. Brussels IV election of Portuguese law preserves this — but only if the will is drafted with the quota cuota properly calculated.
A Portuguese LDA or SA holding mainly Spanish property will see its shares treated as Spanish-situs for IHT. The Portuguese direct-family exemption still applies in Portugal, but Spain taxes the underlying value. Corporate restructuring often pays for itself.
Portuguese união de facto partners need two years of registered cohabitation plus a formal declaration to qualify for the imposto do selo spousal exemption. Without this, the partner is treated as unrelated (10%). Spain treats pareja de hecho differently by region — Andalusia recognises registered parejas for Group II; Madrid does not.
Holiday homes in Andalusia, Extremadura, Galicia, or the Canary Islands owned by Porto, Lisbon, or Coimbra-resident Portuguese. Brussels IV election of Portuguese law plus Spanish regional bonificación delivers near-zero combined liability.
Portuguese engineers, medics, executives resident in Madrid, Barcelona, Valencia, or Sevilla. Spanish IHT on worldwide assets once Spanish-resident; Portuguese-law election keeps legítima; regional bonificación covers Spanish-side exposure.
Portuguese NHR holders with expiring ten-year windows considering Spanish alternatives. Coordinated move planning before civil residence change, Spanish will drafting in advance, Brussels IV election embedded from the start.
Each spouse elects their own national law. Wills coordinate; Portuguese legítima governs Portuguese assets; Spanish legítima or Portuguese-law election governs Spanish assets depending on nationality of the deceased spouse.
Entrepreneurs with Portuguese LDA/SA and Spanish SL structures. Article 18 planning on real-estate-rich shares, Portuguese direct-family exemption, Spanish 95% family business reduction all modelled together.
Lusophone non-Portuguese nationals resident in Spain. Brussels IV election of the national law of the deceased (Angolan, Brazilian, Cabo Verdean) — not Portuguese law, which only Portuguese nationals can elect. Separate analysis for each lusophone nationality.
Brussels IV applied, wills drafted, Portugal and Spanish tax positions coordinated, deadlines tracked.