Spanish Inheritance Tax by Region: Why Heirs in Madrid Pay Almost Nothing and Heirs Elsewhere Pay Thousands
Last updated: July 2026 · 9 min read · Category: Spanish Tax & Inheritance Law
If you are about to inherit property or assets in Spain, the single most important fact to understand is this: the Impuesto de Sucesiones y Donaciones (ISD) — Spain's inheritance and gift tax — is a state tax whose collection and regulation has been ceded to the 17 Autonomous Communities (Comunidades Autónomas). Each region sets its own reductions, allowances and bonificaciones on top of the base state rules, and the community that applies is normally the one where the deceased had their habitual residence (residencia habitual) in the years before death — not where the heir lives, and not necessarily where the property is located. This single rule explains why a child inheriting €400,000 from a parent who lived in Madrid may pay close to €0 in tax, while the same inheritance from a parent who lived in Asturias could trigger a bill running into tens of thousands of euros.
Key legal point: the Impuesto de Sucesiones is regulated at state level by Ley 29/1987, de 18 de diciembre, del Impuesto sobre Sucesiones y Donaciones, but Ley 22/2009 (the regional financing system law) grants each Comunidad Autónoma normative power over its own reductions, tax-rate scales, and bonificaciones for successions connected to that region. The point of connection (punto de conexión) deciding which region's rules apply is, as a general rule, the deceased's habitual residence during the five years prior to death — determined by where they spent the greatest number of days in that period, per Art. 32 of Ley 22/2009.
99%
Comunidad de Madrid applies a 99% bonificación on the final inheritance tax quota for spouses, children and other Group I/II relatives. Andalucía instead uses a reducción of up to €1,000,000 on the taxable base for direct family, which in practice exempts most family inheritances. Regions such as Asturias apply far smaller reductions once the estate exceeds certain thresholds — which is why identical inheritances can produce radically different bills depending purely on where the deceased was habitually resident.
— Comparative regional regulations on Impuesto de Sucesiones, Comunidades Autónomas, 2026
Why does a "national" inheritance tax produce such different bills?
Spain has a single state-level inheritance tax law, Ley 29/1987, which defines the taxable event, the taxpayers and the general assessment rules across the whole common-regime territory. But since Ley 22/2009 devolved normative powers to the Comunidades Autónomas, each region can modify four specific elements of the tax:
- Reducciones propias (own reductions): additional deductions from the taxable base for spouses, children, parents, disabled heirs, or transfers of the family business, on top of the state minimums.
- Escala de gravamen (rate scale): the progressive rate applied to the taxable base — some regions keep the state's scale (7.65%–34%), others use their own, sometimes flatter, scale.
- Coeficientes multiplicadores: multipliers applied depending on the heir's pre-existing wealth and their kinship group relative to the deceased.
- Bonificaciones en cuota: a percentage rebate applied directly to the final tax liability after all the above calculations — this is where the most dramatic regional differences appear.
Because these four levers stack differently in each region, two heirs receiving an identical net inheritance can end up with a final tax bill that differs by a factor of ten or more, purely because of where the deceased happened to live — a detail that catches many foreign heirs of Spanish assets completely off guard. Outside this common-regime scheme sit the País Vasco and Navarra, which have their own foral tax rules under the Concierto and Convenio Económico respectively, adding a further layer of complexity for anyone dealing with successions across multiple Spanish regions.
Madrid's near-elimination of inheritance tax for close family
Comunidad de Madrid applies a 99% bonificación en cuota for Group I (descendants and adopted children under 21) and Group II (descendants over 21, spouses, ascendants) heirs. In practice, this means that after the tax is calculated under the general rules, 99% of that final amount is simply rebated. For an estate that would otherwise generate a theoretical liability of, say, €40,000, the heir ends up paying roughly €400. This is why Madrid is frequently cited in estate-planning discussions as the most favourable region in Spain for inheritances between close relatives.
Andalucía takes a different route to a similar result: instead of a flat bonificación, it applies a reducción propia of up to €1,000,000 on the taxable base for Group I/II heirs, which in practice exempts most family inheritances below that threshold from tax entirely. Cataluña applies a bonificación that decreases as the taxable base grows (from around 99% down to roughly 20% for larger estates), and the Comunidad Valenciana applies a 50% bonificación for Group I/II heirs — a meaningfully lighter burden than the state default, though heavier than Madrid or Andalucía. These exact thresholds and percentages change with almost every regional budget law, so any figure should always be checked against the current normativa autonómica for the specific tax year of death, not a prior year's rules.