Editorial transparency and use of artificial intelligence
This article forms part of the CostaLuz Lawyers blog and is published for general informational and educational purposes only. It was prepared with the assistance of artificial intelligence tools and is pending substantive review and editorial approval by Maria de Castro, a Spanish-qualified lawyer registered with the Cádiz Bar Association under number 2745, founder of CostaLuz Lawyers and the person responsible for the editorial review of the published content.
This article does not constitute legal, tax, immigration, employment, estate-planning or investment advice and does not replace an individual assessment and the professional work of the appropriate CostaLuz Lawyers specialist. No action or omission should be based solely on this information.
Quick answer
Gulf-resident heirs of Spanish property face one tax, not two: most GCC states levy no inheritance tax, so Spain’s is the whole bill. Since 2018 non-EU heirs may apply the regional reductions previously reserved to EU residents, and heirs who were denied them may be able to reclaim. Spain’s deadline is six months.
An heir living in Dubai, Riyadh, Doha, Kuwait City, Manama or Muscat who inherits a Spanish apartment is in a different position from an Irish or British heir, and the difference cuts both ways. There is no home-country inheritance tax to pay on top — but there is also no home-country tax to credit, and for many years Spain charged Gulf-resident heirs more than it charged EU ones. That second point changed, and it is the reason this guide exists.
A note on language: CostaLuz Lawyers advises and corresponds in English and Spanish only. All consultations, documents and correspondence described here are handled in those two languages.
1. One tax, not two — but no credit either
Spain charges Impuesto sobre Sucesiones y Donaciones (ISD) on Spanish-located assets regardless of where the heir lives. Most GCC states do not levy a personal inheritance or estate tax at all. For the majority of Gulf-resident heirs there is therefore no double taxation to relieve: the Spanish assessment is simply the entire liability.
That sounds like an advantage, and in cash terms it often is. But it removes a safety net. Where two countries both tax, treaties and unilateral credits usually cap the total. Where only Spain taxes, whatever Spain assesses is final, and there is no foreign credit to fall back on if the Spanish figure is calculated badly. Getting the Spanish computation right is the whole of the exercise.
Spain has signed inheritance-tax conventions with only France, Greece and Sweden. No GCC state has one. Where a Gulf heir does hold assets caught by another country’s estate tax — a US-situs holding, for instance — that interaction is separate from Spain and needs its own analysis.
2. The change that matters: regional reductions now reach non-EU heirs
Spain’s state scale runs from 7.65% to 34%. Applied bare, it produces large assessments. What usually reduces them is not the state scale but the autonomous community reductions — and for years Spain restricted those to residents of the EU and EEA, leaving Gulf-resident heirs on the state scale alone.
That restriction was struck down. The Spanish Supreme Court held, in a line of rulings beginning 19 February 2018 and continued in March of that year, that confining the regional benefits to EU/EEA residents infringed the free movement of capital under Article 63 of the Treaty on the Functioning of the European Union — a freedom which, unlike the others, extends to third countries. The position was subsequently consolidated in legislation by Law 11/2021.
The practical consequence for a Gulf heir is substantial. Where the Spanish property sits in Andalucía, close relatives may access a bonification of up to 99% of the liability — the same treatment as an EU heir. Which region’s rules apply depends on where the property is, not on where the heir lives.
3. If you inherited before this was settled, you may be able to reclaim
Many non-EU heirs paid Spanish inheritance tax on the bare state scale in years when the regional reductions were being refused to them. Those assessments can be revisited by applying for a rectification of the self-assessment and a refund of the excess, on the same free-movement-of-capital reasoning the Supreme Court accepted.
Two limits apply. There is a general four-year limitation period in Spanish tax law, so the age of the assessment matters. And the claim is fact-specific: it depends on the region, the relationship between the deceased and the heir, and what was actually declared at the time. It is worth checking, and it is not worth assuming.
4. Which law governs the estate — and why a Spanish will matters here
Under EU Regulation 650/2012, succession is governed by the law of the deceased’s habitual residence at death, unless they expressly elected the law of their nationality in a will. The regulation applies to Spanish assets whether or not the family has any EU connection, because it is Spain that is applying it.
For Gulf-resident families this makes the election unusually valuable. Succession rules in the deceased’s home jurisdiction and Spain’s legítima — the fixed shares Spanish law reserves to certain relatives — can allocate an estate very differently. Without a will containing an express election, Spanish rules decide how the Spanish property devolves. With one, the elected national law governs. That single clause frequently determines who ends up owning the property.
5. The six-month deadline and the steps in order
Spanish inheritance tax is declared on Modelo 650 within six months of the date of death. A six-month extension may be requested, but only within the first five months, and interest runs on the deferred amount. The steps that have to fit inside that window are:
- A NIE for every heir. No Spanish registration is possible without it, and obtaining one from the Gulf usually runs through the Spanish consulate — which makes it the step most likely to consume the deadline.
- Legalised home-country documents. The death certificate and any will need to be legalised for use in Spain — by apostille where the Hague Convention applies between Spain and the country concerned, and otherwise through consular legalisation — plus a sworn Spanish translation.
- The Spanish certificates. The Certificado de Últimas Voluntades establishes whether a Spanish will exists.
- The deed of acceptance before a Spanish notary. Heirs who will not travel normally grant a power of attorney to a Spanish lawyer.
- Pay, then register. The tax is paid first; only then can the property be re-registered at the Registro de la Propiedad. Until that is done the property cannot be sold.
Distance is the practical enemy here. Consular appointments, legalisation and translation are all serial, not parallel, and six months is not long once they are queued behind each other.
Prefer to talk it through? Call us (English/Spanish): +34 919 499 342 · or email marialuisa@costaluzlawyers.es.
Frequently asked questions
Do Gulf residents pay inheritance tax twice on Spanish property?
Generally no. Spain charges inheritance tax on the Spanish assets, and most GCC states levy no personal inheritance or estate tax, so there is usually only one charge. The corollary is that there is no foreign tax credit available either, so the Spanish computation is the entire liability and needs to be right first time.
Can non-EU heirs claim Spanish regional inheritance tax reductions?
Yes. The Spanish Supreme Court held from 19 February 2018 that restricting the autonomous community reductions to EU and EEA residents breached the free movement of capital under Article 63 TFEU, which extends to third countries, and Law 11/2021 consolidated that in legislation. A Gulf-resident heir can apply the reductions of the region where the property is located.
I paid Spanish inheritance tax without the regional reduction. Can I reclaim it?
Possibly. Heirs assessed on the bare state scale when the regional reductions were being refused to non-EU residents can apply for a rectification of the self-assessment and a refund of the excess. A four-year limitation period applies in Spanish tax law and the outcome depends on the region, the relationship to the deceased and what was declared, so each case needs to be checked individually.
What is the Spanish inheritance tax rate for a Gulf resident?
The state scale runs from 7.65% to 34%, but that is rarely the figure a family pays. The reductions set by the autonomous community where the property is located usually decide the real bill, and in Andalucia close relatives can benefit from a bonification of up to 99% of the liability.
How long does a Gulf-resident heir have to settle Spanish inheritance tax?
Six months from the date of death, declared on Modelo 650. A further six months can be requested if the application is made within the first five months, with interest running on the deferred amount. Consular appointments, document legalisation and sworn translations all have to fit inside that window.
Which country's succession law decides who inherits Spanish property?
Under EU Regulation 650/2012 it is the law of the deceased's habitual residence at death, unless they expressly elected the law of their nationality in a will. Spain applies this to Spanish assets regardless of whether the family has any EU connection, so without an election Spanish rules, including the legitima reserved shares, govern the Spanish property.
In which languages does CostaLuz Lawyers handle a Spanish inheritance?
English and Spanish. All advice, documents and correspondence are handled in those two languages, and Spanish official documents are provided with sworn translations where they are required.
Related guides
This article provides general guidance only and does not constitute legal advice. Cross-border succession and tax rules change and turn on the facts of each estate; please obtain advice specific to your circumstances before acting.
Reviewed by María Luisa de Castro, CEO at CostaLuz Lawyers — Updated 2026
This is general information, not definitive legal advice — every case requires individual analysis.
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Legalising the death certificate and will is often the slowest step — how apostilles and sworn translations work in Spain.
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