Spanish Municipal Plusvalía Tax in Inheritances

What the plusvalía tax (IIVTNU) is and when it applies in inheritances

The Spanish plusvalía tax, officially the Tax on the Increase in Value of Urban Land (IIVTNU), is a local tax that levies the increase in value of urban land when it is transferred by any title: sale, inheritance, gift, etc. It is collected by the city council where the property is located.

In inheritances, it applies when the estate includes urban real estate. It does not apply to rural land or movable assets. It is a tax independent from Inheritance Tax (Form 650), even though both arise from the same event: the acquisition by inheritance.

It is common for heirs to file Form 650 with their adviser and, months later, receive a notification from the city council demanding the plusvalía tax. They discover it late because both taxes go through different channels.

Taxpayer: the heir who acquires the property

In inheritances, the taxpayer (the person who pays) is the heir who acquires the property. If several heirs receive the property in joint ownership, each one is liable for their share. If the property is allocated entirely to one heir as compensation, that heir is liable for 100% of the tax.

This contrasts with the plusvalía tax in gifts (paid by the donor) or in sales (paid by the seller). In inheritances, it is paid by the recipient, not by the deceased's estate.

Deadline: 6 months from the date of death, with possible extension

The general deadline to declare and pay the plusvalía tax in inheritances is 6 months from the date of death. It can be extended by a further 6 months, provided the extension is requested within the initial period. The extension generates late-payment interest during the extended period.

Each city council has its own procedures: in some, it is enough to submit the documentation and the council issues the assessment (declaration); in others, the taxpayer calculates and pays directly (self-assessment). It is worth checking the system of the specific city council from the outset.

How it is calculated after the 2021 Constitutional Court ruling

The calculation system changed dramatically after the Spanish Constitutional Court ruling of 26 October 2021, which declared the key articles of the previous objective calculation unconstitutional. The State responded with Royal Decree-Law 26/2021, which set up a new dual system: the taxpayer can choose between two methods and apply the lower one.

Objective method (Royal Decree-Law 26/2021)

This is the "automatic" method: annual coefficients (published by the State and reviewed periodically) are applied to the cadastral value of the land at the accrual date, multiplied by the number of years since the previous acquisition. The city council then applies the local tax rate to the resulting base. The simplified formula is: cadastral land value × period coefficient × municipal tax rate. The coefficient depends on the years elapsed and is updated by the Spanish Ministry of Finance.

It is the "default" method when the real method is not chosen, and it is usually the easiest to calculate when there is a real increase in value.

Real method (when it suits)

The taxpayer can opt for the real method, calculated on the actual increase between the previous acquisition value (the prior inheritance or purchase) and the current transfer value (the present inheritance). If the real increase is lower than the objective calculation, this method is more favourable.

It is common in inheritances with several generations of seniority (where the cadastral land value has spiked after cadastral revisions) for the real method to be preferable, because the actual increase in land value can proportionally be smaller.

To support the real method it is advisable to provide both the prior and the current acquisition deeds and to justify the proportional land value (taken from the cadastral value). Some city councils have specific forms to opt for this method.

In practice we see many taxpayers paying under the objective method without having checked the real method. If the difference is significant, both should be calculated before filing.

Cases when the plusvalía tax does NOT apply

There are situations where there is no obligation to pay:

• Real loss of value: if between the prior acquisition and the present inheritance the property has lost value, the tax is not triggered. It must be evidenced with acquisition deeds and a valuation or reference proving the depreciation. This is one of the most relevant practical consequences of the Constitutional Court ruling.
• Rural land: the plusvalía tax only levies urban land; rural land is not taxed.
• Transfers between spouses on dissolution of joint property: generally exempt.
• Assets included in the Spanish Historical Heritage under certain conditions.
• Transfers to certain public-interest non-profit entities.

In practice we see that the option of not paying due to loss of value is rarely used, because it requires good documentation and the city council can verify. When it is appropriate, it should be raised with proper documentation and within the filing deadline, not later.

Common municipal allowances in inheritances: primary residence, kinship

Each city council can establish its own allowances in its tax bylaws. The most common in inheritances:

• Primary residence allowance: many city councils apply a 95% allowance (in some cases up to 100%) when the inherited property was the deceased's primary residence and the heirs are spouse, ascendants or descendants. It usually requires keeping the home for a set period, generally between 3 and 10 years depending on the council.
• Direct kinship allowance: some city councils extend an additional allowance to Group I and II relatives, even if the property was not the primary residence.
• Allowance based on the deceased's age or disability: in some municipalities.
• Allowance for low cadastral value: some city councils apply allowances when the cadastral value is below a threshold.

The allowance is NOT automatic: it must be requested from the city council within the filing deadline, providing evidence that the requirements are met (deceased's residence certificate, family relationship, deed of acceptance of the inheritance, etc.).

Note that municipal tax bylaws are updated each year. What applies in 2026 may have changed in 2027. Before filing, it is worth checking the bylaw in force at the specific council, because differences between municipalities are very significant.

Coordination with Form 650

Municipal capital gains tax and Inheritance Tax are independent taxes but share the triggering event (the acquisition by inheritance) and the deadline (6 months from the date of death). In practice, coordination is important:

• The valuations used in Form 650 are also relevant to support the value at the city council, especially when opting for the real method.
• The allowances in each tax are requested separately.
• If the inheritance is accepted under benefit of inventory or with reservations, both filings should reflect the same legal situation.

We covered Form 650 in detail in our guide to Form 650 in Madrid, where we explain the regional allowances and procedure.

Common mistakes in plusvalía tax for inheritances

1. Not knowing the tax exists, and discovering it through the city council's notification months later.
2. Not requesting the primary-residence allowance when it applies.
3. Not comparing the objective and real methods, missing the more favourable option.
4. Not documenting the real loss of value when applicable, leading to paying a tax that may not be due.
5. Assuming that "the tax is paid by the deceased": no, it is paid by the heir who acquires the property.
6. Missing the 6-month deadline without requesting an extension: the surcharge system applies.

How GESTISYD can help

• We compute the plusvalía tax under both methods (objective and real) and tell you which is more favourable.
• We request the applicable allowances (primary residence, kinship) at the relevant city council.
• We coordinate the filing with Form 650 so both taxes are consistent.
• Where appropriate, we raise the non-application of the tax due to loss of value with the right supporting documentation.