The orderly separation of two families who share a property company is one of the most common steps in succession planning, and one of the easiest to get wrong. What defeats it is rarely the motive behind it, but a structural requirement that comes first. Binding ruling V0751-26, issued on 6 April 2026 by the Dirección General de Tributos (the Spanish tax authority's directorate that issues binding rulings), illustrates the point.
The facts considered
A company owns a portfolio of 28 urban properties let to tenants, together with related assets and liabilities. Its share capital is held equally by two individuals representing two family branches with no family ties between them, although they share strategic decisions.
The proposal is a full demerger: the estate is divided into two equivalent blocks transferred to two newly incorporated companies, each wholly owned by one of the shareholders. Both will have the same corporate purpose, holding and letting real property.
The stated motive is purely organisational: to secure an orderly generational handover and to avoid the corporate conflict that past experience and the differing business outlook of the two families make foreseeable.
Rollover relief and the alternative
Article 17.3 of Act 27/2014 refers the valuation of assets transferred in a demerger to Chapter VII of Title VII, which governs the neutrality regime, Spain's equivalent of rollover relief on reorganisations. Where that regime does not apply, paragraph 4 of the same article takes over: assets transferred by way of a full or partial demerger are valued at market value.
The difference is not a matter of nuance. Under the neutrality regime, latent gains are not brought into the tax base of either the company or its shareholders. Without it, they crystallise when the transaction takes place.
Proportionality and the branch of activity test
Article 76.2.1º.a) defines a full demerger as one in which a company divides its entire estate and transfers it in blocks to two or more entities, dissolving without liquidation, allotting to its shareholders securities in the receiving companies on a proportionate basis.
That is where this case turns. The proposed transaction is not proportionate: each shareholder ends up in sole control of a different company. For such cases, article 76.2.2º imposes a further requirement, namely that each block transferred must constitute a rama de actividad (a branch of activity, an autonomous business unit).
The concept calls for a set of assets capable of operating under its own resources, clearly identified within the transferring company and amounting, in organisational terms, to an autonomous business. Where there is a single activity, separate activities can only be found if each has its own management and organisation, driven by the different purpose and nature of the assets allocated to it.
The ruling's conclusion
The tax authority finds that the company carries on a single activity, the letting of property, and that two distinct organisations do not exist. Holding 28 let urban properties with their related assets and liabilities does not in itself amount to two organisations of material and human resources.
Accordingly, no two branches of activity can be identified for the purposes of article 76.4, and the non-proportionate full demerger cannot benefit from the neutrality regime.
One point deserves particular attention: the economic motive relied on, the generational handover and the prevention of conflict, is never examined. The transaction fails earlier, on a structural requirement that applies regardless of how legitimate the purpose may be.
The ruling adds two caveats. Whether separate branches exist is a question of fact, to be proved by any means admitted in law and subject to review by the tax administration. And the answer is given on the basis of the information supplied, without regard to other circumstances that might alter the assessment of the transaction's main purpose.
Practical implications
The criterion carries a paradox worth explaining to the client. A proportionate demerger requires no branches of activity, but leaves both families present in each of the resulting companies, which is precisely what the transaction set out to avoid. The form that does separate them is the one that meets the requirement. The obstacle appears, in other words, exactly when the transaction achieves its purpose.
The structure must therefore be examined well before the demerger is put on the table. If the property portfolio can support a genuinely separate organisation, with its own resources and distinct management, that separation must already exist and be documented in advance, not assembled for the occasion. And if it cannot, it is better to know before calling the general meeting, so that other ways of arranging the exit of a family branch, and their respective costs, can be weighed calmly.
Conclusion
The ruling does not question the legitimacy of separating two family branches. What it makes clear is that the neutrality regime requires, before any valid economic motive, an organisational reality to support it. Without one, the transaction remains possible, but its cost is measured at market value.
Lex·on advises on corporate reorganisations and family business from Palma de Mallorca and Manacor. If you are preparing the separation of a family property portfolio, we can review how it fits before the first step is taken.
Source: Binding ruling V0751-26 of 6 April 2026, Spanish Directorate General for Taxation, Sub-Directorate for Corporate Income Tax.
© Lexon Advisory, S.L.U. All rights reserved. The total or partial reproduction of this content, by any means or procedure, without the express written authorisation of its owner is prohibited. Any unauthorised use will constitute an infringement of intellectual property rights under applicable law.
This article is for information purposes only and reflects the administrative position in force on the date of publication. It does not constitute legal or tax advice and does not replace an individual analysis of each case.