Inheriting can be a more or less complex process depending on the size of the inheritance. Therefore, having advice to help you with the procedures can be essential in most cases. Afianza is your trusted consultant to carry out these procedures. On this occasion, we begin by resolving some basic questions about a topic that raises frequent doubts: the capital gain of an inheritance. What exactly is it? Keep reading and find out!
Capital gain of an inheritance: what it is and how it is calculated
The capital gain of an inheritance, also known as Tax on the Increase in the Value of Urban Land (IIVTNU), is a mandatory municipal tax that taxes the increase in value that the urban land of a property has experienced since its acquisition by the deceased until the transmission to the heirs occurs.
It is important to highlight that this tax only taxes the value of the land, not that of construction or building. Its collection is the responsibility of the town councils, and each municipality can establish its own tax rates and coefficients within the maximum limits established by state regulations.
The current market value of the property can influence the capital gain calculation, especially if there has been a significant change from acquisition to inheritance. Therefore, professional appraisers may be necessary to determine the fair market value of inherited assets, which is crucial to the lien calculation.
Important: Failure to declare the capital gain of an inheritance may result in sanctions, fines or interest, depending on the corresponding jurisdiction.
Capital gain of an inheritance and capital gain of a property in personal income tax. Is it the same?
At this point, it is convenient to talk about a concept that can be confused with the capital gain of an inheritance to make it clear that it's not the same. We are talking about the capital gain of a property in personal income tax.
As we have indicated, the capital gain of an inheritance (IIVTNU) It is a municipal tax that taxes the increase in value that the land of a property has experienced that has passed from one hand to another by inheritance or donation.
Instead, the capital gain of a property in personal income tax It taxes the capital gain that we obtain from the sale of a property, regardless of whether we have inherited it or not. This tax is also known as Treasury capital gains and its collecting body is precisely the Tax Agency, not the city council.
Therefore, when you inherit a property you pay the municipal capital gain (if applicable), but if you later sell it, you must also pay personal income tax on the capital gain obtained between the inheritance value and the sale price.
Who must pay the capital gain of an inheritance?
Generally, it is the heirs who must pay the municipal capital gains tax when they accept the inheritance. Unlike what happens in a sale, where the seller is usually the one obliged to pay, in inheritances the taxpayer is the one who receives the property.
The deadline to submit the self-assessment to the corresponding town hall is 30 business days since the death of the deceased.
In some localities, there are exemptions or reductions based on the heir's relationship to the deceased, the value of the estate, or particular circumstances. It is essential to consult the tax ordinance of the municipality where the property is located to know the applicable bonuses.
The two calculation methods after the 2021 reform
The urgent reform of 2021, approved after several rulings by the Constitutional Court that annulled part of the previous model, introduced two calculation methods that the taxpayer can choose depending on which one is more favorable to you:
Objective method
A coefficient (set by the city council within the maximum legal limits) is applied to the cadastral value of the land, according to the years of ownership of the property by the deceased.
Royal method
The capital gain is calculated based on the actual gain obtained, that is, the difference between the acquisition value by the deceased and the value at the time of death, applying the percentage that corresponds to the land on the total value of the property.
This reform also expressly established that There is no obligation to pay taxes when it can be proven that there has been no real increase in the value of the land., introducing greater equity but also more practical complexity.
Calculation of the capital gain of an inheritance
To calculate the capital gain generated by the transfer of an inherited property using the objective method, certain key factors must be taken into account:
- Date of transfer of the asset: In an inheritance, the date of transmission corresponds to the death of the original owner of the property
- Date of acquisition of the property by the deceased: It is important to know when the original owner obtained the property, whether by purchase, previous inheritance or another method
- Geographic location of the property: City councils apply their own rates based on local tax ordinances
- Cadastral value of the land: This is the official value assigned to the land on which the property is located, which can be consulted on the Real Estate Tax (IBI) receipt.
- Percentage of ownership inherited: If the asset is divided among several heirs, the specific percentage received by each is an important factor
In addition, there are two key elements for the calculation: the tax base and the tax rate.
Tax base
The tax base represents the increase in value experienced by the land of the property from its acquisition until the moment of inheritance, in a maximum period of 20 years. To calculate it, the following components are used:
Cadastral value: It is the value of the land at the time of transmission of the inheritance.
Increase percentage: This is determined based on the years elapsed between the date of acquisition and the date of inheritance, applying a coefficient established by the city council. The current maximum legal coefficients are:
- 1 to 5 years: 3,7%
- Up to 10 years: 3,5%
- Up to 15 years: 3,2%
- Up to 20 years: 3%
Important: These are the maximum limits that the law allows. Each town council can establish lower coefficients in its tax ordinance.
Tax rate
The tax rate is set by each town council and cannot exceed 30%. This percentage is applied to the tax base to determine the amount to be paid.
Example of calculating capital gains in an inheritance
Let's look at a practical example to better understand the calculation process. Let's suppose that your uncle acquired a commercial premises in Madrid in 2008, and you inherit it in 2026. On this year's IBI receipt, the cadastral value of the land appears as 60,000 euros.
Data for calculation:
- Land value: 60,000 euros
- Years passed: 18 years
- Percentage increase for Madrid up to 20 years: 3%
- Tax rate in Madrid in 2026: 29%
Calculation of capital gains:
- Value increase: 3% × 18 years = 54%
- Tax base: 60,000 euros × 0.54 = 32,400 euros
- Applied tax rate: 29%
- Capital gain of the inheritance: 32,400 euros × 0.29 = 9,396 euros
It is important to remember that these data are indicative and refer to the capital gain of inheritance in the town of Madrid. In a real case, the specific values will depend on the municipality where the property is located, as well as the current tax ordinances.
Regulatory changes in 2026: repeal of coefficients
In 2026 there has been a relevant regulatory change that affects the calculation of municipal capital gains. The maximum coefficients that had been approved for 2026 by Royal Decree-Law They were not ratified by Congress in January 2026 and have become void.
These coefficients represented an increase of up to 40% compared to the previous ones. After its repeal, previous coefficients have been restored that we have mentioned in the previous section (3.7%, 3.5%, 3.2% and 3%).
This regulatory swing forces town councils to adapt their references again and generates uncertainty in the application of the tax. Therefore, it is essential to verify with the corresponding city council what coefficients they are currently applying.
When does the municipal capital gain not have to be paid?
There are situations in which there is no obligation to pay the municipal capital gain in an inheritance:
- When there is no real increase in the value of the land: If it can be demonstrated that the value of the land has not increased since the deceased acquired the property until his death, payment of the tax is not applicable. This can occur in depressed real estate markets or in periods of crisis.
- When the transmission value is equal to or less than the acquisition value: If the value declared in the Inheritance Tax (which is usually based on the cadastral reference value) is equal to or less than the original acquisition value, there is no increase to tax.
- Transfers of habitual residence for people over 65 years of age: Although this exemption mainly affects the capital gain in the personal income tax of the transferor, it may have indirect effects in cases of donation.
To prove the absence of an increase, the heir must provide documentation that justifies it (acquisition deeds, reference values, appraisals, etc.) and can opt for the actual calculation method instead of the objective one.
To ensure that the documentation is presented correctly and avoid requirements from the city council, it is highly recommended to have a tax legal advice specialised.
Frequently asked questions about the capital gain of an inheritance
Do I have to pay the municipal capital gain even if I do not sell the inherited property?
Yes, the municipal capital gain accrues at the time of death, regardless of whether or not you subsequently sell the property. It is a tax that taxes the transmission by inheritance, not the sale.
Can I choose between the two calculation methods?
Yes, since the 2021 reform you can choose between the objective method (by coefficients) and the real method (effective increase in land value). You must calculate both and present the one that is most favorable to you.
What happens if several siblings inherit the same property?
Each heir must pay the municipal capital gain in proportion to the percentage of property they receive. If you each inherit 50%, each brother will pay 50% of the total fee.
Does the inherited property have zero capital gains if I sell it immediately?
Do not confuse both taxes. You have already paid the municipal capital gain for the inheritance. If you sell it later, you will have to pay personal income tax on the capital gain (difference between inheritance value and sale price), but you will not pay municipal capital gains again unless years have passed since the inheritance.
What happens if I do not submit the self-assessment on time?
If you do not present the self-assessment within 30 business days of death, the city council can initiate a penalty procedure with surcharges ranging from 5% to 20% depending on the delay, plus late payment interest. In serious cases, sanctions can reach up to 150% of the unpaid amount.
Can I complain if I believe that the property has not increased in value?
Yes, you can choose the actual calculation method and demonstrate through documentation that there has been no increase in the value of the land. If you have already paid by the objective method, you can request a refund of undue income by providing the corresponding evidence.
Does municipal capital gains affect all inherited properties?
It only affects urban properties located in municipalities where the IIVTNU ordinance is in force. It does not affect rural properties or municipalities that have not approved this tax.
Can I deduct the municipal capital gains paid in other taxes?
No, the municipal capital gain is not deductible in either the Inheritance and Donation Tax or the Personal Income Tax. They are independent taxes that levy different taxable events.
Conclusion: trust specialised advice to manage inheritances
The municipal capital gain on inheritances is one of the taxes that generates the most doubts among taxpayers due to its technical complexity and continuous regulatory modifications. The changes introduced in 2021, the recent coefficient repeals in 2026 and the possibility of choosing between two calculation methods make it essential to have professional advice.
Each inheritance presents particularities that can significantly alter the tax bill: the length of time the deceased owned the property, the location of the property, the municipality's tax ordinance, the existence or not of a real increase in value, and the possible applicable bonuses are variables that only a personalised analysis can optimise.
Furthermore, municipal capital gains coexist with other taxes such as Inheritance and Donation Tax (whose taxation varies enormously depending on the autonomous community) and, in the case of subsequent sale, with the capital gain in personal income tax. Comprehensive tax planning is essential to minimise the overall tax burden.
In Strengthen We are specialists in tax and tax advice on inheritances and we offer you:
- Complete analysis of your situation: We evaluate all taxes that affect inheritance (Inheritance, municipal capital gains, personal income tax)
- Optimized capital gains calculation: We determine which calculation method (objective or real) is most favorable to you
- Verification of exemptions and bonuses: We check if you can benefit from any reduction according to the ordinance of your town hall
- Self-assessment management: We prepare and present all declarations on time to city councils and tax administrations
- Claims and returns: We represent you before the administration if you consider that you have paid more or if the tax was not applicable
- Post-sale planning: We advise you on the optimal time of sale and the tax implications for personal income tax.
Have you inherited a property and have doubts about municipal capital gains? Do you need to calculate how much you will have to pay or verify if the tax applies? Contact Afianza and our team of experts will guide you throughout the process so that you comply with your tax obligations in the most efficient way possible.
