Introduction
We understand that you are going through one of the most difficult moments of your life. On top of the loss of a loved one, many families face concern about the financial and legal aspects of the inheritance. Inheritance tax (Impuesto de Sucesiones) is one of the procedures that raises the most questions among heirs in Spain, and it is entirely natural to feel confused by a system that varies so dramatically from one autonomous community to another.
This guide is here to offer you clarity. We explain, in a clear and orderly manner without unnecessary jargon, what the Inheritance and Gift Tax (Impuesto de Sucesiones y Donaciones) is, how much is paid in each autonomous community in 2026, the deadlines available to you, how the tax is calculated and which reductions you can apply to legitimately reduce the amount owed.
The aim is for you to be able to make informed decisions and focus on what truly matters: being with your family and honouring the memory of the person you have lost. This article is aimed at direct heirs -- spouses, children, grandchildren -- as well as anyone who needs to understand how inheritance taxation works in Spain. If you are the surviving spouse, in addition to inheritance tax you may wish to learn about the widow's or widower's pension, a monthly Social Security benefit to which you may be entitled.
If you have not yet completed the basic formalities following the death, we recommend starting with our complete guide to mandatory procedures, where you will find a chronological checklist of all the steps required.
What Is the Inheritance and Gift Tax?
The Inheritance and Gift Tax (Impuesto de Sucesiones y Donaciones, ISD) is a tax levied on the gratuitous acquisition of assets and rights by individuals, whether through inheritance (sucesiones) or through lifetime gifts (donaciones). It is the heir who pays the tax, not the estate or the deceased's assets.
Although national legislation establishes the general rules, in practice each autonomous community has the power to set its own relief, reductions and tax rates. This produces a reality that often surprises citizens: the same inherited estate can be taxed in radically different ways depending on the autonomous community in which the deceased resided.
An illustrative example
Imagine an inheritance of 300,000 EUR that a son receives from his father:
- In Madrid, with 99% relief, the heir would pay approximately between 100 and 500 EUR.
- In Asturias, without such generous relief, the bill could run to several thousand euros.
- In the Canary Islands, with 99.9% relief, the effective cost would be virtually symbolic.
This disparity results from the regulatory powers of the autonomous communities and is fully supported by law. You should not feel guilty for trying to understand how to legitimately minimise your tax burden: it is your right.
Kinship groups
The Inheritance Tax classifies heirs into four groups, and this classification determines both the reductions and the relief that may be applied:
| Group | Relationship to the deceased | Standard state reduction |
|---|---|---|
| Group I | Descendants under 21 years of age | 15,956.87 EUR + 3,990.72 EUR for each year under 21 (max. 47,858.59 EUR) |
| Group II | Descendants aged 21 or over, spouse, ascendants | 15,956.87 EUR |
| Group III | Siblings, uncles/aunts, nephews/nieces, parents-in-law | 7,993.46 EUR |
| Group IV | Cousins, distant relatives, non-relatives | 0 EUR |
The 99% relief offered by many autonomous communities generally applies only to Groups I and II. For Groups III and IV, the tax is usually significantly higher.
Comparison by Autonomous Community 2026
The difference between autonomous communities is the single most decisive factor in inheritance tax in Spain. Below is a comparative table updated for 2026, showing the relief applicable to direct heirs (Groups I and II: spouse, children, parents).
| Autonomous community | Relief Group I/II | Practical effect |
|---|---|---|
| Canary Islands (Canarias) | 99.9% | Less than 1% is paid |
| Madrid | 99% | Approximately 1% is paid |
| Andalusia (Andalucia) | 99% (inheritances up to 1,000,000 EUR) | Approximately 1% is paid |
| Castile and Leon (Castilla y Leon) | 99% | Approximately 1% is paid |
| Extremadura | 99% | Approximately 1% is paid |
| Murcia | 99% | Approximately 1% is paid |
| Cantabria | 99% | Approximately 1% is paid |
| La Rioja | 99% | Approximately 1% is paid |
| Balearic Islands (Baleares) | 99% (direct descendants) | Approximately 1% is paid |
| Aragon | 99% (with limits depending on amount) | Depends on the inherited amount |
| Basque Country (Pais Vasco) | Own foral system | Generally low |
| Navarre (Navarra) | Own foral system | Generally low |
| Valencia (Comunitat Valenciana) | Significant relief | Moderate-low |
| Galicia | Generous reductions | Moderate-low |
| Castile-La Mancha (Castilla-La Mancha) | Partial relief | Moderate |
| Asturias | Partial relief | Moderate-high |
| Catalonia (Cataluna) | Variable reductions depending on amount | Can be high |
Source: regional legislation in force as of March 2026. Relief may vary depending on the taxable base, the heir's pre-existing wealth and other factors. Please consult the specific legislation of your autonomous community or seek professional tax advice for an exact figure.
Communities with maximum relief (99% or higher)
In communities such as Madrid, Andalusia, the Canary Islands, Castile and Leon, Extremadura, Murcia, Cantabria, La Rioja and the Balearic Islands, direct heirs (spouse and children) pay a virtually symbolic amount. For example, on an inheritance of 200,000 EUR, the effective tax could be between 50 and 300 EUR.
This does not mean that the filing is unnecessary. Inheritance tax must be filed in all autonomous communities, even when the resulting bill is close to zero. Failure to file may result in penalties.
Communities with the highest tax burden
In Catalonia and Asturias, relief is more limited, particularly for larger inheritances. In Catalonia, for example, reductions depend on the total value of the inheritance and the degree of kinship, and for high amounts the tax can be considerable.
Basque Country and Navarre: the foral system
The Basque Country (Alava, Bizkaia, Gipuzkoa) and Navarre have their own foral (regional) tax systems, independent of the national legislation. In general, the tax for direct heirs is low, but the specific rules differ from those of the common regime. Consult the corresponding Foral Treasury (Hacienda Foral) for details on your specific case.
Important note: relief depends on the kinship group
It is essential to remember that the 99% relief typically applies only to heirs in Groups I and II (spouse, children, parents, grandchildren). If you are inheriting from a sibling, an uncle or aunt, a nephew or niece, or a person with no family relationship, the relief is substantially lower or may not apply at all, even in communities such as Madrid. In these cases, the tax can be significantly higher.
Amidst the formalities and deadlines, do not forget what truly matters. While you manage the inheritance paperwork, you can create a digital space of remembrance where you gather photographs and the life story of your loved one -- with no deadlines and no bureaucracy. Discover more at Kinmory
Deadlines and Extensions for Payment
The deadline for filing and paying inheritance tax is 6 months from the date of death. This deadline is the same in all autonomous communities and admits no general exceptions.
Extension of 6 additional months
If you anticipate that you will not be able to complete the process within the ordinary period, you may request an extension of 6 additional months (extending the total deadline to 12 months). However, please note the following conditions:
- The extension must be requested before the first 5 months from the date of death have elapsed. If requested later, it will be denied.
- The extension accrues late-payment interest on the resulting tax bill from the sixth month onwards.
- The application is submitted to the tax authority (Administracion tributaria) of the corresponding autonomous community.
Consequences of late payment
If you fail to file the tax within the deadline (and have not requested an extension), surcharges of between 5% and 20% apply depending on the length of the delay, in addition to possible late-payment interest and penalties for a tax infringement.
| Delay | Surcharge |
|---|---|
| Up to 3 months | 5% (no late-payment interest) |
| 3 to 6 months | 10% (no late-payment interest) |
| 6 to 12 months | 15% (no late-payment interest) |
| More than 12 months | 20% + late-payment interest |
Recommendation: do not delay. If you need more time, request the extension within the first 5 months. It is far more economical to pay the interest on the extension than to face the surcharges for late filing.
While you manage the inheritance formalities, you can create a digital memorial as a space of remembrance accessible to the whole family, with no deadlines or bureaucratic requirements.
How to Calculate Inheritance Tax Step by Step
The calculation of inheritance tax follows a process with several steps. Although obtaining an exact figure always requires professional tax advice, understanding the general process will help you make sense of the result.
Step 1: Determine the value of the inherited assets
Add up the value of all assets and rights that make up the inheritance: property (cadastral reference value or market value), bank accounts (balance as at the date of death), vehicles, investments, jewellery, works of art and any other assets.
From the total value, deduct the debts and charges of the deceased (outstanding mortgages, personal loans, tax debts) and the costs of the final illness and burial. The result is the net taxable estate (masa hereditaria neta).
Step 2: Calculate the individual share
Divide the net taxable estate among the heirs as set out in the will or, failing that, according to the law (intestate succession). Each heir is taxed on their share, not on the total inheritance.
Step 3: Apply the standard state reductions
The kinship reductions (see the following section), habitual residence reduction, family business reduction, disability reduction and any other applicable reductions are applied to the individual share. The result is the taxable base (base liquidable).
Step 4: Apply the tax rate and multiplying coefficients
A progressive tax rate is applied to the taxable base (the higher the base, the higher the percentage). In addition, a multiplying coefficient is applied that varies according to the kinship group and the heir's pre-existing wealth. The greater the pre-existing wealth and the more distant the kinship, the higher the coefficient.
Step 5: Apply the regional relief
Finally, the regional relief of the autonomous community (Madrid's 99%, the Canary Islands' 99.9%, etc.) is applied to the resulting tax bill. This is the step that makes the greatest difference to the final result.
Simplified practical example
A 35-year-old son inherits 250,000 EUR from his father in Madrid:
- Value inherited: 250,000 EUR
- Kinship reduction (Group II): -15,956.87 EUR
- Taxable base: 234,043.13 EUR
- Gross tax (according to the state rate): approximately 31,000 EUR
- Madrid relief (99%): -30,690 EUR
- Tax payable: approximately 310 EUR
The same example in a community without 99% relief could result in a payment of more than 30,000 EUR. The difference is enormous.
Important: this example is indicative. The actual bill depends on multiple factors (the heir's pre-existing wealth, multiplying coefficients, additional regional reductions). Consult a tax adviser or use the simulators offered by some autonomous communities on their websites.
If you wish to have a complete overview of all the costs associated with the death of a family member, please consult our article on how much a funeral costs in Spain in 2026.
Common Reductions You Can Apply
Reductions lower the base on which the tax is calculated. They are cumulative (you may apply several if you meet the requirements) and exist at both the national and regional level. The most relevant are as follows.
Kinship reduction
This is the most common reduction. Its amount depends on the group to which the heir belongs:
| Group | Relationship | State reduction |
|---|---|---|
| Group I | Descendants under 21 | 15,956.87 EUR + 3,990.72 EUR per year under 21 (max. 47,858.59 EUR) |
| Group II | Spouse, descendants over 21, ascendants | 15,956.87 EUR |
| Group III | Siblings, uncles/aunts, nephews/nieces, parents-in-law | 7,993.46 EUR |
| Group IV | Distant cousins, non-relatives | 0 EUR |
Many autonomous communities supplement these with their own additional reductions.
Habitual residence reduction
If the inheritance includes the deceased's habitual residence, heirs in Groups I and II may apply a reduction of up to 95% of the property's value, with a limit of 122,606.47 EUR per heir. To benefit from this reduction, the heir must retain the property for a minimum of 10 years (in some communities, 5 years).
Family business or shareholding reduction
If shares in a family business are inherited, the reduction may reach 95% of the value of those shares, provided certain requirements are met (the business must be the heir's main source of income, the shares must be held for a minimum period, etc.).
Disability reduction
Heirs with a recognised degree of disability may apply additional reductions:
| Degree of disability | Additional reduction |
|---|---|
| Between 33% and 65% | 47,858.59 EUR |
| Above 65% | 150,253.03 EUR |
Additional regional reductions
Each autonomous community establishes its own supplementary reductions. Some examples:
- Andalusia: reduction of up to 1,000,000 EUR for Group II heirs.
- Catalonia: enhanced habitual residence reductions in certain cases.
- Galicia: additional reductions for those under 25 years of age.
Consult the legislation of your autonomous community or contact a tax adviser to find out the specific reductions applicable to your situation.
Frequently Asked Questions
Which autonomous communities have the lowest inheritance tax?
Madrid, Andalusia, the Canary Islands, Castile and Leon, Murcia, Extremadura, Cantabria, La Rioja and the Balearic Islands apply relief of 99% or higher for direct heirs (spouse and children), meaning the effective tax is minimal in these communities. In the Canary Islands, the 99.9% relief makes the bill virtually non-existent. This relief applies to kinship Groups I and II; for siblings or distant relatives, the conditions are less favourable.
How long do I have to pay inheritance tax?
The deadline for filing and paying inheritance tax is 6 months from the date of death. If you need more time, you may request an extension of a further 6 months (up to a total of 12), but the application must be submitted before the first 5 months have elapsed. The extension accrues late-payment interest on the tax bill. If you neither file on time nor request an extension, surcharges of between 5% and 20% apply.
What if I inherit a property and cannot afford the tax?
If you do not have the liquidity to pay the tax, you have several legal options. You may apply for a deferral or instalment plan from the regional tax authority (Administracion tributaria autonomica), which will allow you to pay the bill in several instalments. You should also check whether you are entitled to the 95% reduction for the habitual residence, which would significantly lower the taxable base. As a last resort, you may renounce the inheritance if the debts and tax charges exceed the value of the inherited assets.
Is the tax different if I inherit from a sibling rather than a parent?
Yes, the difference is very significant. The 99% relief offered by many autonomous communities applies almost exclusively to Groups I and II (spouse, children, parents and grandchildren). If you inherit from a sibling (Group III) or a distant relative or non-relative (Group IV), the kinship reductions are lower and the regional relief may not apply. In addition, higher multiplying coefficients are applied, which can notably increase the final bill.
Is inheritance tax charged on money in the deceased's bank accounts?
Yes. The balance held in the deceased's bank accounts at the date of death forms part of the taxable estate and is subject to inheritance tax in the same way as property, vehicles or any other asset. The bank will report the balance in the deceased's accounts to the tax authorities, so it cannot be omitted from the tax return.
Summary
- Inheritance tax (Impuesto de Sucesiones) taxes inheritances in Spain and is paid by the heir, not the estate.
- Each autonomous community sets its own relief, resulting in major differences: in Madrid or the Canary Islands almost nothing is paid; in Catalonia or Asturias it can be substantial.
- The 99% relief applies to direct heirs (Groups I and II: spouse, children, parents). For siblings or distant relatives, the tax is significantly higher.
- The deadline for payment is 6 months from the date of death, extendable by a further 6 months if requested before the fifth month.
- Reductions for kinship, habitual residence, family business and disability can considerably lower the taxable base.
- The tax must always be filed, even when the resulting bill is zero or close to zero after relief.
- If in doubt, consult a tax adviser who specialises in inheritances or use the simulators provided by the autonomous communities.
- Data updated as of March 2026. Please consult the current legislation of your autonomous community to confirm the figures applicable to your case.
Related Articles
- Mandatory procedures after a death in Spain: complete checklist 2026 -- A chronological guide to all the procedures you must carry out, including inheritance tax.
- What to do when a family member dies: step-by-step guide -- The first practical and emotional steps after the loss of a loved one.
- Death benefit: EUR 46.50 in aid in 2026 -- The only direct state aid for funeral costs and how to apply.
- How much does a funeral cost in Spain in 2026? -- Complete breakdown of funeral costs by city and type of service.
While you manage the formalities -- consider a digital memorial
Inheritance procedures can take months. Memory, however, does not wait. Create a digital memorial on Kinmory with photographs, videos and the life story of your loved one, accessible to the whole family from anywhere.