Basic ideas on Spanish Inheritance Tax for non-residents inheriting assets in Spain

Many people assume that, if they do not live in Spain, Spanish Inheritance Tax will not apply to them. That is not correct.

If a non-resident inherits assets or rights located in Spain, Spanish Inheritance and Gift Tax may still apply, and the heir may need to file and pay the tax in Spain.

1. A non-resident can still be taxable in Spain

The first key point is simple: being non-resident does not mean being outside the scope of Spanish Inheritance Tax.

Spain taxes non-residents on an obligación real basis, meaning the tax applies to assets and rights located, exercisable, or enforceable in Spain, rather than automatically to the deceased’s worldwide estate.

In practical terms, this commonly arises when the inheritance includes:

• Spanish real estate
• Spanish bank accounts
• certain Spanish shares or rights
• or other assets with a sufficient connection to Spain

2. It is not the whole worldwide estate that is taxed in Spain

For non-residents, Spain does not generally tax the whole inheritance worldwide. The focus is on the Spanish-connected assets.

That distinction matters. A non-resident heir inheriting from a non-resident deceased person may still have a Spanish tax filing obligation, but usually only in relation to the part of the inheritance linked to Spain.

3. The heir is the taxpayer

Under Spanish rules, the person who normally pays the tax is the heir or other beneficiary, not the estate itself as a separate taxable body.

The tax base in inheritance cases is the net value of the individual acquisition received by each heir, after deductible charges and debts where applicable.

This means each heir must review:

• what exactly they inherit
• the tax value of those assets
• whether deductions or reductions may apply
• and which set of Spanish rules is relevant in their case

4. State rules do not always tell the whole story

One of the most important points in cross-border inheritance cases is that the State rules are not always the final answer.

In many non-resident inheritance scenarios, although the case is handled at State level, the taxpayer may still be able to opt for the rules of a Spanish autonomous community.

For example:

• if the deceased was resident in Spain and the heir is non-resident, there may be an option between State rules and the rules of the autonomous community where the deceased was resident
• if both deceased and heir are non-resident, there may be an option between State rules and the autonomous community where the Spanish assets with the highest value are located

This can make a very substantial difference, because autonomous communities may apply their own reductions, allowances and tax benefits.

Spanish Will for International Families (UK / US / Non-EU)

5. The return is usually filed using Form 650

In inheritance cases, the relevant self-assessment form is generally Modelo 650.

6. The general filing deadline is six months from death

Timing is critical.

For inheritances, the general deadline is six months from the date of death of the deceased, or from the date on which a declaration of death becomes final. A time extension may be requested within the first five months.

This is especially important in international estates, where delays often arise because heirs are still collecting death certificates, wills, probate documents, foreign legalisations, or sworn translations. The practical difficulty does not remove the Spanish tax deadline.

7. The tax is based on the net value of what the heir receives

Spanish law states that the taxable base in inheritance cases is the net value of the individual share inherited by each beneficiary, after deductible debts and charges.

For Spanish real estate, current rules generally use the cadastral reference value at the tax date, unless the declared value is higher, or no reference value exists.

So, when a non-resident inherits a Spanish property, the tax review should not stop at identifying the property. It is also necessary to check:

• the correct tax value
• whether debts are deductible
• how the estate is divided
• and whether a more favourable autonomous community regime may be available

8. Not all international inheritance cases are the same

A very common mistake is to assume that all non-resident heirs are treated in the same way.

They are not.

The outcome can vary significantly depending on:

• whether the deceased was resident in Spain
• whether the heir is resident in Spain or abroad
• where the assets are located
• which autonomous community is relevant
• and whether the taxpayer may choose between State and regional rules

That is why a proper initial review is so important before filing the tax return.

9. Double taxation is not always eliminated automatically

Another important point for international families is that double taxation is not always automatically eliminated simply because more than one country is involved.

Spain may still tax a non-resident heir on assets located in Spain, even if the country of residence of the deceased or the heir also applies inheritance tax rules to the same inheritance. The fact that two countries are connected to the estate does not, by itself, prevent both systems from coming into play.

Under Spanish rules, a specific deduction for international double taxation is generally reserved to taxpayers who were habitually resident in Spain at the time of death and taxed under personal obligation. In other words, that internal Spanish deduction is not the usual solution for a non-resident heir inheriting Spanish assets.

In practice, the position must therefore be reviewed by looking at whether there is an applicable double taxation treaty covering inheritance tax between Spain and the other country involved. Spain has only a very limited number of inheritance tax treaties of this kind.

This means that, in many international inheritance cases, there may be no treaty-based protection specifically for inheritance tax, and the analysis must be carried out carefully country by country.

For that reason, it is essential to review not only the Spanish filing position, but also whether relief is available in the other jurisdiction, and how both systems interact in practice.

Inheritance Tax & Laws in Spain

Final takeaway

As a basic starting point, the rule is this:

a non-resident who inherits assets in Spain may have to pay Spanish Inheritance Tax, usually in relation to the Spanish-connected assets, generally through Form 650, and usually within six months from death. In many cases, the analysis should not stop at the State rules, because a more favourable autonomous community regime may also be available.

For international families, an early legal and tax review can make a very significant difference in timing, compliance and overall tax cost.

At CostaLuz Lawyers, we assist non-resident heirs in reviewing the Spanish assets inherited, identifying the applicable tax regime, and filing Spanish Inheritance Tax correctly.

Contact us for an initial Inheritance Tax simulation and personalised review.

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María Luisa de Castro – Immigration & Property Lawyer in Spain

For a complete overview of taxation in Spain, see our Your Guide to Spanish Tax.

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.