Co-ownership issues in Spain in 2026: disputes, forced sale and the retracto de comuneros

How Spanish law handles co-ownership issues when property owners disagree, from forced sale under Article 400 to the retracto de comuneros, and what the 2026 DGSJFP parcelacion ruling and DGT tax doctrine mean for resolving shared-property disputes.

Co-ownership issues in Spain arise when two or more people hold a property together and disagree on use, costs, management or exit. The Codigo Civil calls this shared arrangement the comunidad de bienes and regulates it in articles 392 to 406, the default framework that applies unless a contract or a regional foral law says otherwise. For a foreign buyer purchasing a Costa del Sol apartment with a spouse, a sibling or an investment partner, these default rules decide who can vote, who pays, who can force a sale, and what happens when one co-owner wants out. The framework is more permissive than many buyers expect, and its gaps are exactly where a written co-ownership agreement earns its keep. Two 2026 developments sharpen the picture: the DGSJFP confirmed in January 2026 that selling indivisa shares of rustica land in Andalusia can trigger parcelacion controls, and the DGT has drawn a bright tax line between a full co-ownership extinction and a partial buyout that changes the economics of every exit decision.

What is copropiedad or proindiviso in Spanish property law?

Copropiedad and proindiviso are the two Spanish terms for ordinary co-ownership of a single asset by several persons. Article 392 of the Codigo Civil defines the comunidad de bienes as the situation in which the ownership of a thing or a right belongs pro indiviso to several people, meaning each owner holds an abstract, undivided share rather than a physically separated part. Article 393 then fixes the default economics: participation in benefits and charges is proportional to each co-owner’s quota, and quotas are presumed equal unless proof shows otherwise.

The practical consequence for a property purchase is that a deed which simply lists two buyers without stating percentages registers them at 50% each, regardless of who paid what. A buyer contributing 70% of the price must ensure the deed records a 70% indivisa share, because the Registro de la Propiedad inscribes what the escritura states. Article 54.1 of the Reglamento Hipotecario, approved by the Decreto of 14 February 1947, requires the deed to express the indivisa share of each condueño with mathematical precision that allows it to be known without doubt. The Colegio de Registradores reflects that split on the title and the nota simple. Our buying as a foreigner guide explains how that inscription fits into the wider purchase process.

How does a co-owner use and maintain the property?

The Codigo Civil gives each co-owner a right of use and a duty of upkeep that track their share. Article 394 permits each participant to use the common thing according to its intended purpose, provided that use does not prejudice the community or block the other co-owners from exercising the same right. Article 395 goes further and allows any co-owner to compel the others to contribute to the costs of conservation, with the sole exception being a co-owner who formally renounces their share in the dominion. That makes maintenance a mandatory cost, not a voluntary one, which matters when one co-owner wants to repair the roof and the other would rather defer.

The same logic applies to recurring ownership costs. Community fees on an apartment block, covered in our community fees guide, are owed by the community of owners as a whole and then allocated internally among co-owners in proportion to their shares. A co-owner who pays more than their quota can reclaim the excess from the others. The same proportional rule governs IBI, insurance and the non-resident imputed income tax covered in our holding taxes guide, each of which falls on the property as a whole.

Who decides how a jointly owned property is managed?

Decision type	Rule	Codigo Civil article
Routine administration	Majority of co-owners by interest share	Art. 398
Alterations to the common thing	Unanimous consent required	Art. 397
Sale of the whole property	Unanimous consent required	Art. 399
Sale of an individual share	Each co-owner may freely sell	Art. 399
Demand for division	Any single co-owner, at any time	Art. 400
Pact to keep indivisa	Written, maximum 10 years, renewable	Art. 400

Article 398 is the governance rule that surprises the most co-buyers. The administration and better enjoyment of the common thing are governed by the agreements of the majority of the participants, and the majority is measured by the quantity of interests, not by headcount. A 70% shareholder can therefore outvote a 30% shareholder on management acts such as hiring a letting agent or approving a repair. Where there is no majority, or where an agreement is gravely prejudicial, Article 398 allows a judge to intervene or to appoint an administrator. Article 397, by contrast, draws a hard line on alterations: no co-owner may make alterations to the common thing without the consent of the others, even where the change would be advantageous, which prevents one owner from knocking through a wall the other wanted kept.

The asymmetry between routine management and alterations is the core reason a written co-ownership agreement matters. The default rules do not cover use rotations for a holiday home, scheduling of letting periods, or what happens if one co-owner wants to refurbish and the other does not. A deed that simply records two names at 50% each leaves every non-routine decision to unanimity, which is precisely where shared ownership most often breaks down.

What are the most common co-ownership issues and disputes?

The co-ownership issues that bring people to a Spanish lawyer fall into four recurring categories, each rooted in a specific gap in the Codigo Civil default rules. Understanding which category a dispute falls into determines the legal remedy available, from a simple majority vote to a full court-ordered partition.

The first and most common issue is disagreement over use. Article 394 gives each co-owner the right to use the property according to its intended purpose, but it says nothing about who gets the property in August, or whether one co-owner can let it on Airbnb while the other wants it for personal holidays. When use conflicts escalate, the default remedy is a judicial decision under Article 398, where a judge can intervene when agreements are gravely prejudicial to one party. For a non-resident co-owner, this means a Spanish court case conducted through a power of attorney, which is slow and costly compared to a pre-agreed use schedule in a written co-ownership agreement.

The second category is cost disputes. Article 395 lets any co-owner compel the others to contribute to conservation costs, but disputes arise over what counts as conservation versus improvement, and over whether a co-owner who has not used the property still owes their share of community fees and taxes. A co-owner who refuses to pay their share of a necessary repair can be sued for the proportional amount, and the costs of community fee enforcement apply at the building level as well as internally between co-owners.

Forced sale and unwanted third-party entry

The third category is the forced sale. Article 400 gives any co-owner the unilateral right to demand division at any time, and for an indivisible property like a single apartment, division usually means sale and distribution of proceeds. A co-owner who wants to hold the property long-term can be forced to sell against their wishes, unless a written indivision pact under Article 400 caps that right for up to ten years. This is the most disruptive co-ownership issue because it overrides every other preference: a reluctant co-owner cannot block a division demand, only delay it through procedural challenges.

The fourth category is the unwanted third-party entry. When one co-owner sells their share to an outsider, the remaining co-owners face a new co-owner they did not choose. The retracto de comuneros under Articles 1522 and 1524 provides a nine-day window to substitute themselves for the buyer, but that remedy is reactive and time-critical. A pre-sale tanteo clause in a co-ownership agreement, requiring the selling co-owner to offer the share to the others before going to market, is far easier to police than a post-sale clawback.

Issue type	Typical trigger	Governing article	Default remedy
Use disputes	Conflicting holiday or letting schedules	Art. 394	Judicial intervention (Art. 398)
Cost disputes	Refusal to pay for repairs or community fees	Art. 395	Proportional cost claim
Forced sale	One co-owner demands division	Art. 400	Court-ordered sale and distribution
Unwanted third-party entry	Share sold to outsider	Arts. 1522, 1524	Retracto within 9 days of registration

Can a co-owner sell or mortgage their share independently?

Yes. Article 399 of the Codigo Civil gives each co-owner full ownership of their part and its fruits, with the power to alienate, cede or mortgage it. The effect of that alienation or mortgage against the other co-owners is limited, however, to the portion that would be adjudicated to the selling co-owner if the community were divided. A buyer of a share therefore steps into the seller’s shoes for division purposes, not for the whole property.

That freedom to sell is what triggers the retracto de comuneros. Article 1522 of the Codigo Civil provides that a co-owner of a common thing may exercise the right of retract when the share of any of the other co-owners is sold to a stranger, and where two or more co-owners wish to exercise it they may only do so pro rata to the portion they hold in the common thing. Article 1524 fixes the deadline at nine natural days from registration in the Registro de la Propiedad, or failing that, from the moment the retrayent had knowledge of the sale. The right lets the remaining co-owners substitute themselves for the outsider buyer on the same terms and price within that window. The mechanism keeps an unwanted third party out of a shared property without blocking the sale itself.

What STS 1465/2025 and STS 964/2024 clarified about the nine-day clock

The Tribunal Supremo has now ruled twice in quick succession on the same underlying dispute, sharpening the rule in ways that matter for any non-resident co-owner. STS 964/2024 (9 July 2024, Sala de lo Civil, rec. 3959/2019) was the first to address the case, which involved a 50% indivisa share of a Madrid property sold at judicial auction and inscribed in the Registro on 3 April 2014. The retrayent obtained a nota simple on 13 May 2014 showing the adjudication but filed no demand, and the Court held that the word inscripcion in Article 1524 must be read literally: it refers to the asiento de inscripcion, not the asiento de presentacion. The retrayent argued she had only discovered the sale when she pulled the nota simple, but the Court found no evidence of diligent enquiry and held the nine-day period had long expired.

STS 1465/2025 (21 October 2025, Sala de lo Civil, rec. 4166/2020) then ruled on the same dispute and confirmed that registration creates an irrebuttable presumption of knowledge. The retrayent argued that the Registry entry did not show the adjudication price and so the clock could not have started. The Supreme Court rejected this argument, holding that from the day the transfer appears in the Registro the nine-day window runs automatically, and the retrayent cannot extend it by claiming insufficient information about the price. The Court stressed that the retracto must be interpreted restrictively because it limits the buyer’s property rights, and that the brief nine-day period exists for legal certainty, so that ownership of an indivisa share does not remain uncertain indefinitely.

Together these rulings have sharp practical bite for co-owners of Costa del Sol property. A non-resident who does not regularly monitor the Registro can lose the retracto right without ever knowing a sale was imminent. The safest protection is a co-ownership agreement with a pre-sale tanteo clause that forces a selling co-owner to offer the share to the others before going to market, which is far easier to police than a nine-day post-sale clawback. Our buying through a company guide sets out the alternative of holding through a Sociedad Limitada, where share transfer rules in the company statutes replace the Codigo Civil defaults entirely.

What did the 2026 DGSJFP resolve on cuota indivisa sales and parcelacion?

A co-owner selling an indivisa share of rustica land in Andalusia now faces a registry gate that did not exist in practice before the DGSJFP’s resolution of 5 January 2026. In BOE-A-2026-12674, the DGSJFP confirmed the decision of the registradora of Chiclana de la Frontera number 2 to suspend the inscription of a sale of one-eighth indivisa of a 6,131 square metre finca, because the theoretical surface per share (roughly 766 square metres) fell below the minimum cultivable unit and the transaction therefore constituted an acto revelador of possible illegal parcelacion under Article 91 of Andalusia’s Ley 7/2021 (BOE, boe.es).

The legal basis has two layers. At state level, Article 26.2 of the consolidated Ley del Suelo (RDL 7/2015) equates the sale of indiviso shares with exclusive-use assignments to segregation for registry purposes, and requires the registrar to demand a municipal parcelacion licence or a declaration of unnecessity before inscribing. At Andalusian level, Article 91.2 of Ley 7/2021 defines as acts revealing possible parcelacion any transmission of cuotas indivisas of a finca where individualised use can be inferred, regardless of whether the parties declare they will not make use agreements (BOE, boe.es). Article 91.5 exempts only transmissions mortis causa and between spouses or registered partners.

The practical consequence for co-owners is that selling a cuota indivisa of rustica land in Andalusia, where the per-share surface is below the minimum cultivable unit, can be blocked at the registry until the town hall issues a parcelacion licence or confirms none is needed. The DGSJFP noted that the criterion is objective: it turns on the surface calculation and the land classification, not on the parties’ stated intentions. A co-owner planning to sell a share of a rural finca should therefore check the minimum cultivable unit for the municipality and budget for the municipal control procedure. Our co-ownership partition guide covers the full partition and exit process, including the tax treatment of each route.

How can co-owners end a joint ownership?

Spanish law treats co-ownership as inherently unstable and gives every participant a unilateral exit right. Article 400 states that no co-owner is obliged to remain in the community and may demand division at any time. The only way to bind co-owners to keep the property indivisa is a written pact, capped at a maximum of ten years and renewable. Without such a pact, any co-owner can force a division whenever they choose, which for an indivisible property such as a single apartment usually means a sale and distribution of the proceeds.

Article 401 sets the limit: division cannot be demanded if it would make the thing inservible, that is, unserviceable. For a building, Article 401 allows division by adjudicating independent floors or locales where the structure permits, which is why the horizontal property regime in Article 396 exists as a specialised form of co-ownership for apartment blocks. Our guide to the Ley de Propiedad Horizontal covers that separate regime, which governs the relationship between private units and common elements in a vertical building.

The division itself follows the inheritance rules of Article 406, which applies the same partition logic used for estates. Creditors and assignees of a co-owner may participate in the division and oppose one made without their presence under Article 403, though they cannot impugn a completed division unless there was fraud or prior formal opposition. When the property is essentially indivisible and the co-owners cannot agree on adjudication to one of them, Article 404 requires a sale and distribution of the price. Article 404 was also amended by Ley 17/2021 (15 December 2021) to add a companion-animal provision: if the shared asset is a pet, the division cannot proceed by sale unless all co-owners unanimously agree, and a court must instead decide custody based on the animal’s welfare and the co-owners’ interests. The practical route for most co-buyers is an extrajudicial agreement on the sale price and the split, with a notary recording the extincion de condominio; the judicial route is the fallback when agreement fails.

Which exit route should a co-owner choose?

The decision a co-owner faces when they want out has four main routes, each with a different legal mechanism and a very different tax cost. The table below maps the options against the governing articles, the tax treatment confirmed by the DGT, and the key risk or constraint of each path.

Exit route	Governing articles	Tax treatment (Andalusia)	Key constraint
Sell your share to a third party	Art. 399 (free alienation)	ITP 7% on buyer; retracto risk for seller	Co-owners can claw back within 9 days of registration (Arts. 1522, 1524)
Sell your share to a co-owner (partial buyout)	Art. 399 + Art. 400	ITP 7% on the acquiring co-owner (DGT V1522-25)	Community continues; not a true extinction
Force full partition (extincion de condominio)	Art. 400 + Art. 404	AJD 1.2% on full property value (DGT V1340-24)	All co-owners must exit; adjudications must match quotas
Exercise retracto de comuneros	Arts. 1522, 1524	ITP 7% on the retrayent (stepping into buyer’s shoes)	9 natural days from registration; pro rata if multiple

The tax difference between the second and third rows is the single most important number on this page. A co-owner who buys out a departing partner triggers ITP at 7 per cent in Andalusia because the community of goods continues and the acquisition is treated as a transfer of the departing share. A co-owner who agrees with all others to dissolve the community entirely, with each receiving assets matching their quota, pays only AJD at 1.2 per cent. On a EUR 120,000 share, that is EUR 8,400 versus EUR 1,440, a gap of EUR 6,960. The DGT’s V1340-24 (7 June 2024) and V1522-25 (21 August 2025) confirm this distinction: the full extinction is not a transfer because each co-owner is merely consolidating a pre-existing abstract right, while the partial buyout is an onerous acquisition of a share the buyer did not previously hold.

How is the dissolution of a condominium taxed?

The Tribunal Supremo has consolidated a clear and favourable tax doctrine on the extinction of condominium, which matters directly for co-owners dissolving a shared property. STS 719/2024 (26 April 2024, Sala de lo Contencioso-Administrativo, rec. 6421/2022) and STS 731/2024 (30 April 2024, same Chamber) held that when the same co-owners dissolve condominiums over several indivisible properties and the adjudication respects the proportionality of their quotas, the operation tributes as Actos Juridicos Documentados (AJD), not as Transmisiones Patrimoniales Onerosas (TPO). The Court introduced the concept of patrimonio colectivo: when the same persons hold the same shares across multiple properties acquired under different titles, the tax authority must treat them as a single community for dissolution purposes, and the specification of each co-owner’s pre-existing abstract right into exclusive ownership is not a transfer. Only an exceso de adjudicacion with a lucrative intent triggers TPO on the excess portion.

A separate ruling, STS 1634/2023 (5 December 2023, Sala de lo Contencioso-Administrativo, rec. 6962/2022), addressed the income tax position of the co-owner who does not receive the property. The Tribunal Supremo held, confirming its earlier STS of 10 October 2022, that compensation paid to a co-owner who is not adjudicated the property constitutes a ganancia patrimonial subject to IRPF when the property’s value has increased between acquisition and dissolution. The Agencia Tributaria confirmed this doctrine in its published analysis of the ruling. For a non-resident co-owner, the equivalent is a capital gain under the 19% non-resident CGT regime, and the 3% buyer retention mechanism does not apply to a consensual dissolution (only to a sale to a third party). Our non-resident CGT guide covers the retention rules in detail.

How does joint ownership interact with inheritance and tax?

When a co-owner dies, their indivisa share passes to their heirs, not to the surviving co-owners, unless a will or a right of accretion says otherwise. The heirs enter the community in the deceased’s place, which means a 50% share held by a spouse can pass to children from a prior marriage, leaving the survivor in a new co-ownership with people they did not choose. A Spanish will is the standard instrument to direct the share and avoid the forced-heirship rules of the Codigo Civil, and the Andalusia 99% bonificacion covered in our inheritance tax guide sharply reduces the tax on close-family successions.

For non-resident co-owners, the tax position is the same per share as for a sole owner. Each co-owner files their own Modelo 210 for imputed income and rental income, and each accounts for their share of any capital gain on a sale under the 19% non-resident CGT regime and the 3% buyer retention explained in our non-resident CGT guide. The plusvalia municipal on a sale falls on the land value uplift for the whole property and is allocated by share, so a 50% co-owner pays 50% of the local levy. None of these taxes change because the property is jointly held; they simply apply proportionally.

What should a co-ownership agreement cover?

Clause	What it fixes	Default without a clause
Unequal shares	Records who paid what	Equal quotas presumed (Art. 393)
Use and rotation	Sets who uses the property when	Each may use per destination (Art. 394)
Cost allocation	Fixes maintenance and tax splits	Proportional to share (Art. 393)
Alteration consent	Defines what counts as routine vs alteration	Unanimity for alterations (Art. 397)
Tanteo / first refusal	Pre-sale offer right to co-owners	Only post-sale retracto, 9-day window (Arts. 1522, 1524)
Indivision pact	Binds co-owners not to demand division	Any co-owner can force division (Art. 400)
Exit route and tax allocation	Pre-agrees full extinction vs partial buyout	Default rules make buyout 7% ITP, extinction 1.2% AJD
Dispute resolution	Names a mediator or arbitrator	Judicial administrator (Art. 398)

A written agreement is the only way to move off the Codigo Civil defaults, and it should be recorded in the escritura or a separate notarial deed so it binds successors. The most common gaps the default rules leave are use scheduling, which a holiday home almost always needs, and the sale-trigger mechanism, which the 10-year indivision pact in Article 400 is designed to address. The 2026 DGT doctrine adds a new reason to draft an exit clause: without a pre-agreed route, a co-owner who wants to buy out a departing partner faces the 7 per cent ITP rate, while a pre-agreed full extinction can qualify for the 1.2 per cent AJD rate, a difference that can run into thousands of euros on a Costa del Sol property. An independent lawyer, whose role our do you need a lawyer guide explains, should draft the agreement so it does not fall foul of the imperative rules the Codigo Civil sets on division and alienation. Our ownership structure comparison guide lays out the alternatives if a co-ownership agreement is not enough to manage the relationship.