Inheritance tax in Spain for foreign residents and their heirs

The mistake people make first (and why it matters)

Most retirees assume "inheritance tax" in Spain is a single national charge with one allowance and a fixed rate they can plan for. That’s wrong. The national ISD law sets the basic framework, but every autonomous community — Madrid, Andalusia, Catalonia, Valencia, Balearic Islands, etc. — has its own rules, reductions and slabs. Those regional differences are not small. They can turn a €30,000 bill into €0 for a child, or push a distant cousin’s liability from five figures to much more.

So the single smartest thing you can do is: identify which community’s rules will apply to your Spanish assets and your heirs. That determines allowances, rates and often whether non‑EU heirs get the same treatment as EU/EEA heirs. If you skip that, all the planning in the world won’t predict what your heirs actually pay.

Who pays and which region decides the rules

The short version:

• If the deceased was a Spanish tax resident when they died, the autonomous community where they were resident applies its rules to the whole estate (worldwide assets included).
• If the deceased was non‑resident, Spanish‑situated assets are taxed in the community where those assets are located (for property, that’s usually the community where the property sits).

That means two identical apartments in Spain can be taxed under two different communities’ regimes depending on where the owner lived. You need to check both the deceased’s residency and the asset location.

One practical wrinkle: heirs resident in Spain may also have to declare and pay tax in Spain on foreign inheritances — this is where double taxation rules matter. If you’re a US or UK heir, read the sections on treaties and credits below, and see our explanation of the US–Spain treaty and the UK–Spain treaty for how credits and reliefs work.

What this actually costs (real figures and what pushes them up)

There is no single percentage I can give you that will be correct for everyone. Still, here are useful concrete anchors you can use when you run your numbers.

• The national rate scale used as a basis runs roughly from about 7.65% for small taxable bases up towards 34% for high bases (this is the taxable base before community adjustments). Autonomous communities then apply multipliers, reductions and allowances that can raise or lower that effective rate dramatically.
• Typical reductions: direct descendants/ascendants (children, parents, spouse) often get the largest allowances — some communities give reductions of tens of thousands of euros or percentage cuts that reduce the tax to near zero for modest estates. Madrid, for years, has had a near‑100% reduction for direct heirs (meaning many heirs pay nothing on typical family homes).
• Example, illustrative only: a Spanish house worth €300,000 left to a child. In a community with generous reductions (Madrid, parts of Andalusia, Valencia depending on the year) the tax bill for the child could be below €1,000 or zero. In a community with few reductions the bill could be €20,000–€40,000. Exact numbers require the community’s rules and the heir’s relationship to the deceased.

What raises your bill:

• Relationship: distant relatives and non‑related beneficiaries pay higher rates and have smaller allowances.
• Region: each autonomous community adjusts tax base bands and grants reductions — this is the single biggest lever.
• Value of Spanish‑situated assets: only Spanish assets are taxed if the deceased was non‑resident. For residents, the worldwide estate matters, so foreign assets can push you into higher brackets.
• Whether the heir is resident in an EU/EEA country versus a third country: historically that changed the treatment in several regions — check current rules (they’ve shifted since Brexit and CJEU rulings).

Where to check the current, legal numbers: the Agencia Tributaria pages for ISD and your autonomous community’s Hacienda website. The national starting point is the Agencia Tributaria’s ISD section: agenciatributaria.es. Regional portals show reductions and multipliers that actually determine what you pay.

The process and the paperwork (checklist)

Start a single folder (digital and physical) and put these documents in it as soon as you can. You’ll need them to calculate the tax, register the inheritance and transfer property.

• Death certificate (certificado de defunción).
• Certificate of Last Wills (certificado de últimas voluntades) — request from Spain’s Ministry of Justice or through a Spanish lawyer/consulate if you’re abroad.
• Original will(s) or an extract; if there’s no will, a declaration of heirs (declaración de herederos) from a notary or court.
• Deeds/title for any Spanish property (escritura), plus Nota Simple from the Land Registry.
• Valuation/estate inventory: up‑to‑date appraisals and bank statements for Spanish accounts, investments and life policies affecting the estate.
• NIEs/NIFs and passports for heirs and the deceased (if they had a Spanish document) — heirs must supply identification and tax numbers.
• Proof of relationship (birth/marriage certificates) where needed for reductions.
• The tax form for inheritance: you’ll file the ISD declaration in the autonomous community — many use the national Modelo 650 or an online equivalent; confirm the exact form and telematic procedure with the community’s tax office.

Deadlines: you normally have six months from the date of death to file and pay the ISD return. You can ask for a six‑month extension — many people do — but rules on interest/guarantees differ by community. Don’t assume an extension is automatic.

Common traps and fixes for foreign residents

Trap 1 — You left a will at home in your country but didn’t choose applicable law. Spain applies its succession rules to Spanish assets unless you’ve made a choice of law under the EU Succession Regulation. That can mean forced‑heirship rules (legítima) you didn’t expect, especially for property owners with children. Fix: make a Spanish‑compatible will and, if you want your national law to apply, include the clause that selects it — get advice from a Spanish lawyer and register the will if appropriate.

Trap 2 — You bought an apartment as a non‑resident and assumed your heirs overseas will be treated like Spanish heirs. Fix: check whether your heirs will get reductions in the community where the asset sits — post‑Brexit changes and regional rules vary for non‑EU heirs.

Trap 3 — You ignored the fact that being a Spanish tax resident changes everything. Fix: if you’re near the residency threshold and worried about worldwide estate taxation, talk to a tax adviser. Becoming resident can be sensible or costly depending on your full picture (pensions, other taxes, healthcare). See our article on tax residency rules for the basics.

Double taxation and foreign heirs

Heirs who live abroad often worry they’ll pay tax twice — once in Spain, once at home. Spain and many other countries provide mechanisms to avoid or reduce double taxation, but how that works depends on your country and the treaty (if any) with Spain.

Practical points:

• If you’re a US heir: the US has an estate tax, but the US–Spain double taxation arrangements and credits can affect what you pay. Read our explainer on the US–Spain situation and talk to a cross‑border adviser.
• If you pay Spanish ISD and your home country also taxes inheritances, you’ll usually be able to claim a credit for Spanish tax paid — but the calculation, timing and documentation differ by country.
• Recordkeeping is critical: Spanish tax receipts, the ISD filing, valuations and proof of payment are what your local tax authority will want to see to grant credits.

Next action you should take in the next 30 days

If you own property in Spain or you’re a foreign resident there: create the inheritance file now and do these three things in order.

1. Order a Nota Simple from the Land Registry for any Spanish property and collect the deeds (escritura) if you don’t already have them. If you’re abroad, your lawyer or gestor can get this for you.
2. Ask your Spanish lawyer or notary to check (1) which autonomous community’s rules would apply to your assets and (2) whether your current will chooses your national law under the EU Succession Regulation. If you don’t have that clause and you want your home law to apply, add it now.
3. Gather IDs and NIE/NIF numbers for yourself and the likely heirs, and start a digital folder for valuations and bank statements. This saves weeks after a death — and six months goes very fast.

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FAQ

Does Spain charge inheritance tax on non‑residents?

Yes. Non‑residents are liable to Spanish inheritance tax on assets located in Spain (real estate, Spanish bank accounts, Spanish investments). Which autonomous community’s rules apply depends on where the asset is located. If the deceased was a Spanish resident, the community of residence applies to the whole estate (including foreign assets).

How long after a death do you have to pay inheritance tax in Spain?

Normally you have six months from the date of death to file and pay, although you can request an extension (commonly a further six months) — the conditions vary by community and interest on deferred payment may apply. Start the process early; filing late without authorisation can mean penalties and interest.

Will my spouse or children always pay nothing?

No. Many communities give generous reductions for spouses and children — in some places nearly 100% — but this is not universal. The exact allowance, percentage reduction and any caps depend on the autonomous community and the heir’s tax residency status. Always check the local rules.

If I leave my Spanish house to someone abroad, do they need a Spanish tax number (NIE)?

Yes. Heirs generally need an NIE/NIF to deal with Spanish bureaucracy, file the ISD return and register property transfers. Get NIEs for likely heirs ahead of time if possible — the consulate or a Spanish lawyer can help obtain them.

Where do I find the official rates and forms?

The starting place is the Agencia Tributaria (Spanish Tax Agency) ISD pages for the national rules, and your autonomous community’s Hacienda website for regional rules, reductions and online filing. Official national guidance is at agenciatributaria.es. For treaty questions, consult the double‑taxation guidance relevant to your country (see our US/Spain and UK/Spain pages linked above).