Inheritance Agreements in Spain: What They Are & Where Allowed

🇪🇸 Read the original in Spanish

Planning the transfer of an estate during one's lifetime is one of the most significant financial and personal decisions a person can make, especially in a country like Spain, where different civil laws coexist. Although popular belief dictates that an inheritance is only triggered after death through a will, inheritance agreements emerge as an exceptional legal tool. They allow individuals to plan and, in many cases, execute the delivery of assets during their lifetime with full legal guarantees and tax advantages. This mechanism, colloquially known as "lifetime inheritances", offers a level of legal certainty that a will (which is always unilaterally revocable) cannot provide, making it the preferred instrument for thousands of families to avoid future inheritance disputes and optimize their tax bills.

What Are Inheritance Agreements and What Is Their Legal Nature?

An inheritance agreement—known in Spanish as a pacto sucesorio—is a bilateral or multilateral contract through which two or more people arrange the mortis causa (after death) succession of one or all of them. This is done by appointing an heir, assigning legacies, or making specific asset allocations. Unlike a will, which is a strictly unilateral act and revocable solely by the testator's wishes, a pacto sucesorio is a bilateral legal transaction. This means that once signed, neither party can modify it or cancel it unilaterally, unless legally prescribed grounds exist or there is mutual agreement.

The main advantage of this mechanism is the stability it provides. The person designated as an heir or legatee under an inheritance agreement acquires a secure legal position: they know that the committed assets cannot be arbitrarily sold or bequeathed to a third party.

The Principle of Prohibition in the Common Civil Code

To understand the exceptional nature of inheritance agreements, we must first look at the Spanish Civil Code (Código Civil), which governs the so-called "common law territory" (autonomous communities that do not have their own regional or charter civil law).

The Código Civil generally establishes a strict prohibition on agreements regarding future inheritance. This is clearly set out in Article 1271, second paragraph, of the Civil Code:

> "Regarding future inheritance, no contracts may be entered into other than those whose purpose is to carry out the division of an estate and other partition provisions inter vivos, in accordance with the provisions of Article 1056."

Furthermore, Article 658 of the Civil Code determines that succession is deferred either by the will of man expressed in a testament or, in its absence, by provision of law, completely omitting the contractual route. Therefore, in regions such as Madrid, Andalusia, the Valencian Community, Castile and León, Castile-La Mancha, Murcia, Asturias, Cantabria, La Rioja, and the Canary Islands, it is not possible to enter into inheritance agreements. In these territories, any contractual agreement regarding a future inheritance is considered null and void ab initio.

Where Are They Allowed? The Map of Regional Law (Derecho Foral) in Spain

The true power of inheritance agreements is unlocked in the Autonomous Communities that possess their own regional, charter, or special civil law (Derecho Foral). In these territories, regional law not only permits these contracts but regulates them in detail, adapting them to the socio-economic reality of each region.

1. Galicia: "Apartación" and "Pactación de mejora"

Regulated under Law 2/2006, of June 14, on Galician Civil Law, this is one of the territories where these agreements are most widely used. Two mechanisms stand out:

• La apartación (exclusion agreement): The forced heir (usually a child) receives an asset or money during the donor's lifetime in exchange for irrevocably renouncing their status as a forced heir (legitimario) and any future claim on the donor's estate.
• La pactación de mejora (improvement agreement): This allows ascendants to transfer specific assets to their children or descendants. This can take effect immediately during their lifetime (con eficacia de presente) or be deferred until the time of death.

2. Catalonia: "Heredamientos" and "Pactos de institución"

The Fourth Book of the Civil Code of Catalonia regulates inheritance agreements in a very comprehensive manner.

• Heredamiento (hereuament / contractual heir appointment): This is the contractual designation of an heir. It can be cumulative (transferring all present and future assets) or de presente (transferring current assets, while the donor retains the usufructo [life estate/usufruct] or certain powers of disposal).
• Pactos sucesorios de atribución particular (particular allocation agreements): These are the contractual equivalent of specific legacies.

3. Aragon: "Pactos de opción" and "Institución"

The Code of regional Law of Aragon (Legislative Decree 1/2011) allows almost absolute freedom. Agreements can designate an heir in favor of one of the contracting parties, reciprocally between them, or in favor of a third party. It is very common to use these agreements to ensure the continuity of Aragonese agricultural and family businesses.

4. Balearic Islands: "Definición" and "Finiquito de legítima"

The Compilation of Civil Law of the Balearic Islands regulates specific instruments depending on the island:

• In Mallorca and Menorca (La Definición): This is an agreement whereby descendants who are forced heirs, having received assets or money from their ascendants during their lifetime, formally renounce the legítima (statutory forced share) that would correspond to them in the future estate.
• In Ibiza and Formentera (El Finiquito de legítima): Similar in nature, this allows for the exclusion of the legítima in exchange for lifetime compensation.

5. Basque Country: "Pacto de designación de sucesor"

Law 5/2015, of June 25, on Basque Country Civil Law, unified the regulations. It allows parties to contractually designate an heir, as well as transfer assets during their lifetime (con eficacia de presente) with highly advantageous tax exemptions, particularly in the historical territories of Biscay, Gipuzkoa, and Álava.

6. Navarre: "Pactos sucesorios" in the Fuero Nuevo

The Compilation of the Civil Regional Law of Navarre (Fuero Nuevo) allows agreements for the designation of an heir and donaciones propter nuptias (donations by reason of marriage) with the status of an inheritance agreement, offering extreme flexibility regarding conditions and reserved rights of disposal.

Step-by-Step Practical Steps to Formalize an Inheritance Agreement

If you reside in one of the communities with regional law and wish to execute a pacto sucesorio, you must strictly follow these steps to guarantee its legal validity and avoid tax complications:

1. *Determine your civil regional citizenship (vecindad civil): This is the first and most critical step. To benefit from regional law, the deceased/donor must hold the vecindad civil of that specific autonomous community. Vecindad civil is acquired by birth (child of parents with that status), by continuous residence for 2 years (provided this intention is explicitly declared before the Registro Civil* [Civil Registry]), or automatically by continuous residence for 10 years (unless a contrary declaration is made).
2. Asset valuation and agreement design: A detailed inventory of the assets to be transferred or committed must be drawn up, and they must be assigned a real market value. At this stage, you must decide if the transfer is de presente (the beneficiary takes possession of the asset immediately) or de futuro (the asset is transferred only after death, but the agreement is already irrevocable).
3. Drafting the proposal and notary instructions: Inheritance agreements are formal legal transactions. They strictly require execution via a Escritura Pública (Public Deed). A specialist lawyer must draft the instructions adapted to the specific regional legislation so that the Notary can authorize the deed.
4. Signing before a Notary: All parties involved (the donor/grantor and the beneficiary) must physically appear before the Notary to sign the public deed. Unilateral signing is not permitted.
5. Tax settlement: Once the deed is signed, a period of 30 business days begins to present and settle the corresponding taxes with the competent regional tax authority.
6. Registration in Public Registries: If the agreement includes an immediate transfer (de presente) of real estate, the deed and proof of tax payment must be presented to the Registro de la Propiedad (Land Registry) to register ownership in the name of the new owner.

Key Deadlines, Amounts, and Figures You Must Know

The success of an inheritance agreement lies in the rigorous control of timelines and associated tax costs. These are the most relevant figures and deadlines in Spain:

• 30 business days: This is the general legal deadline to self-assess the Impuesto sobre Sucesiones y Donaciones (ISD - Inheritance and Gift Tax) after signing the agreement deed with immediate effect.
• 0% to 1% effective tax rate: In communities like Galicia, the Basque Country, or Cantabria (where applicable), inheritance agreements between parents and children enjoy reductions and allowances on the taxable base that reduce the tax liability to practically symbolic or zero amounts for medium-sized estates.
• The Law on Measures to Prevent and Fight Tax Fraud (Law 11/2021): This law introduced a major change to the Impuesto sobre la Renta de las Personas Físicas (IRPF - Personal Income Tax). If the beneficiary of an inheritance agreement with an immediate transfer of assets (de presente) transfers (sells) those assets before 5 years have passed from the signing of the agreement, or before the death of the donor (whichever happens first), the beneficiary subrogates to the original acquisition date and value of the donor. This prevents inheritance agreements from being used for purely speculative purposes to "update" acquisition values and avoid paying capital gains tax under IRPF.
• *Municipal Capital Gains Tax (IIVTNU): If the inheritance agreement involves the immediate transfer of urban real estate, this municipal tax is triggered. The deadline to self-assess and pay it is 30 business days* from the signing of the deed.

Practical Examples with Real Figures

To illustrate the financial and real estate impact of these instruments, we analyze two common scenarios:

Example 1: The Galician "Apartación" of a Property

• Situation: Manuel, a resident of Vigo (with Galician vecindad civil), wishes to give his daughter Sofía an apartment valued at €180,000 so she can start her independent life. He also wants Sofía to make no claims on his future estate to avoid conflicts with her sister.
• The Tool: They sign an Apartación deed in accordance with the Galician Civil Law. Sofía receives sole ownership of the apartment and declares she is "excluded" (apartada) from her father's future statutory forced share (legítima).
• Impact on Inheritance Tax: Since it is an apartación (an inheritance agreement), it is taxed under the Inheritance Tax category (mortis causa) rather than Gift Tax. In Galicia, transfers within Group II (parents to children) are exempt from tax up to €1,000,000 per heir. Therefore, Sofía pays €0 in Inheritance Tax.
• Impact on Manuel's Income Tax (IRPF): As this is an inheritance agreement with an immediate transfer, Manuel does not have to pay capital gains tax in his annual tax return (thanks to the "capital gains of the deceased" rule, which the Supreme Court has extended to inheritance agreements in regional law territories), provided that Sofía does not sell the apartment within the next 5 years.

Example 2: Immediate Inheritance Agreement in Catalonia vs. a Standard Gift

• Situation: Jordi, a resident of Barcelona, wants to transfer a commercial premises valued at €250,000 to his son Pau. Jordi acquired this property years ago for €100,000.
• Option A (Traditional Gift): If Jordi made a standard lifetime gift (donación), Pau would have to pay Gift Tax under the current rates (though with regional bonuses). However, the biggest issue would be for Jordi, who would have to declare a capital gain of €150,000 in his IRPF (the difference between the gift value of €250,000 and the acquisition value of €100,000). This would result in an IRPF payment of approximately €34,000 for Jordi.
• Option B (Immediate Particular Allocation Inheritance Agreement): By formalizing this under the Civil Code of Catalonia as a pacto sucesorio, the capital gain of €150,000 is not subject to taxation in Jordi's IRPF at the time of transfer. This defers the tax impact, providing crucial immediate financial savings for the family.

Mistakes to Avoid When Planning an Inheritance Agreement

Ignorance of the legal and tax limits of this mechanism can lead to serious financial and family consequences. Avoid making the following mistakes:

• *Ignoring the donor's regional citizenship (vecindad civil): Believing that simply buying an apartment in Galicia or Catalonia, or being registered on the town hall census (empadronamiento) there for a few months, is enough to sign an inheritance agreement. If the donor does not hold the corresponding regional vecindad civil*, the agreement signed before a Notary will be completely null and void under the common Civil Code.
• Selling the asset before 5 years have passed: If the beneficiary sells the property received through an immediate inheritance agreement before 5 years from the date of signing (or before the donor passes away), they will lose the IRPF tax benefits. They will be forced to pay the capital gains accumulated since the original donor acquired the asset.
• Failing to include reversion or charge clauses: Giving away property ownership immediately without retaining a lifetime usufruct (usufructo vitalicio) or without including reversion clauses (for example, in case the child passes away before the parent) can leave the donor unprotected in their old age.
• Failing to file taxes on time: Forgetting that even if the effective tax rate is 0% due to regional allowances, there is a strict obligation to present the tax self-assessment to the regional tax office within 30 business days. Failure to file leads to penalties and surcharges.

Frequently Asked Questions (FAQ)

Can a foreign resident in Spain sign an inheritance agreement?

Yes, but under very specific conditions. The European Succession Regulation (Regulation 650/2012) determines that the law applicable to a person's succession is that of the State of their habitual residence at the time of death, unless they expressly choose the law of their nationality in their will. If a foreigner habitually resides in an autonomous community with regional law (such as Catalonia or the Balearic Islands) and has acquired the corresponding vecindad civil (or if the law applicable to their succession by residence is that of that region), they can validly execute an inheritance agreement.

Can an inheritance agreement be revoked once signed?

As a general rule, it cannot be revoked unilaterally. Since it is a bilateral contract, it requires the mutual agreement of all signatories to be modified or cancelled. However, regional laws do provide for exceptional grounds for unilateral revocation, such as the beneficiary's failure to comply with imposed conditions, grounds for inheritance unworthiness (indignidad sucesoria), or crimes committed by the beneficiary against the donor.

What is the difference between an inheritance agreement and a lifetime gift?

The main difference lies in their legal nature and taxation. A gift (donación) is a pure inter vivos (between living persons) act, subject to Gift Tax (which usually has less generous allowances) and forces the donor to pay IRPF on the generated capital gain. An inheritance agreement, even when transferring the asset immediately, is legally classified as an inheritance agreement (mortis causa). This allows the application of much more advantageous inheritance tax benefits and avoids immediate IRPF capital gains tax for the donor, provided the 5-year retention period is respected.

Can creditors seize assets included in an inheritance agreement?

Yes. Signing an inheritance agreement cannot be used as a mechanism to hide assets (alzamiento de bienes) or to defraud legitimate creditors. If it is proven that the immediate transfer of assets left the donor insolvent and unable to meet their debts, creditors can exercise a acción pauliana (clawback action) to rescind the transaction for fraud of creditors within the established legal timeframes.

Summary

• Definition: Inheritance agreements (pactos sucesorios) are bilateral contracts, unilaterally irrevocable, that arrange a future inheritance, allowing the transfer of assets during one's lifetime.
• Legal Geography: They are strictly prohibited by the common Civil Code but are fully valid and widely used in Galicia, Catalonia, Aragon, the Balearic Islands, the Basque Country, and Navarre.
• Key Requirement: The donor must hold the regional citizenship (vecindad civil) of the autonomous community whose regional law is to be applied.
• Tax Advantage: They allow the transfer of assets during life while enjoying the tax reductions of inheritances (Succession Tax) and avoiding immediate IRPF impact for the donor.
• The 5-Year Rule: To secure the IRPF tax savings, the acquirer must not sell the received asset for a period of 5 years from the signing of the agreement or until the death of the donor.
• Formalities: They must be executed via a Public Deed (Escritura Pública) before a Notary and tax-settled within 30 business days.

General legal information, not personalised legal advice. For your specific situation, ask your question for free at AbogadoAI — answers grounded in Spanish law (BOE), in English.

This is general information, not legal advice. Verify on the BOE or consult a lawyer for your specific case.