The Spanish Supreme Court, in its judgment 949/2026, of 20 July (cassation appeal 6518/2023), has laid down two criteria that directly affect contributions of shareholdings to holding companies. The first is that the anti-abuse clause of the special restructuring regime may be applied partially, also under the legislation in force before 2015. The second is that the Administration may only eliminate the deferral of capital gains if it justifies, by means of a reinforced statement of reasons, that such deferral was the main objective of the transaction.
Barely three months later, the Spanish Central Economic-Administrative Court (TEAC) has issued the first resolution applying this doctrine (resolution of 8 October 2026, RG 417/2023). Its reading of the judgment is, as we shall see, considerably more restrictive than a first approach to the ruling might suggest.
The FEAC regime and its anti-abuse clause
By way of context, it is worth recalling what the FEAC regime is. It is the special regime for mergers, divisions, contributions of assets and exchanges of securities, currently regulated in Chapter VII of Title VII of Act 27/2014, of 27 November, on Corporate Income Tax (LIS), and previously in Chapter VIII of Title VII of Royal Legislative Decree 4/2004, of 5 March, approving the consolidated text of the Corporate Income Tax Act (TRLIS).
Its essential effect is deferral. When an individual contributes his or her shareholdings in an operating company to a holding company in exchange for shares in the latter, the latent capital gain —the difference between the market value of what is contributed and its acquisition value— is not taxed at that point. It will be taxed later, when the securities received are transferred. It is therefore not an exemption, but a postponement of taxation intended to prevent tax from conditioning business reorganisations.
This regime has an anti-abuse clause. Article 96.2 TRLIS provided that the regime would not apply where the main objective of the transaction was tax fraud or evasion, and in particular where it was not carried out for valid economic reasons but with the mere purpose of obtaining a tax advantage. The current article 89.2 LIS reproduces that rule and has added, since 2015, a second paragraph with an evident practical consequence: inspections that determine the total or partial non-application of the regime “shall eliminate solely the effects of the tax advantage”.
The question raised was twofold. On the one hand, whether such partial non-application was also possible under the TRLIS, which did not mention it. On the other, whether, once the absence of valid economic reasons had been declared, the Administration could simply tax the deferred capital gain.
The facts
In December 2006, a few days before the entry into force of Act 35/2006, of 28 November, on Personal Income Tax, a married couple and their two daughters incorporated a holding company. The spouses contributed shareholdings in several operating companies with a value exceeding EUR 52,000,000; the daughters contributed EUR 3,000 each in cash. The transaction was placed under the FEAC regime.
Note the timing chosen. The 2006 reform abolished the regime for wealth-holding companies and, with it, the taxation borne by mere holding companies. From then on, dividends received by the holding company from its subsidiaries could remain effectively untaxed thanks to the double taxation deduction, whereas, had they been received directly by the individuals, they would have been taxed under Personal Income Tax.
The tax inspectorate concluded that the transaction was not driven by valid economic reasons. In its view, the real reasons were three, all of them tax-related: to reduce the taxation of dividends, to reduce Wealth Tax and to reduce future Inheritance and Gift Tax. It accordingly adjusted the 2006 Personal Income Tax of the contributing taxpayer and included in her tax base the capital gain arising from the contribution, without any deferral.
The adjustment was upheld in substance by the Regional Economic-Administrative Court of Galicia, by the TEAC and by the National High Court (Audiencia Nacional), in a judgment of 13 April 2022. The absence of valid economic reasons was no longer disputed in cassation. The debate was confined to the consequences of that finding.
First conclusion: proportionality was implicit in the TRLIS
The Supreme Court answers the first question in the affirmative. The clause in article 96.2 TRLIS transposed article 11 of Directive 90/434/EEC —the directive harmonising the tax treatment of mergers, divisions, transfers of assets and exchanges of shares, now replaced by Directive 2009/133/EC—, which allows Member States to “refuse to apply or withdraw the benefit of all or any part of” the regime.
The Court of Justice of the European Union, for its part, has held that national anti-avoidance measures in this field must respect the principle of proportionality. It said so as early as the Leur-Bloem judgment (C-28/95), of 1997, the first to interpret that clause of the Directive. And it clarified the point in Euro Park Service (C-14/16), of 2017: national authorities may not confine themselves to applying predetermined general criteria, but must carry out an overall examination of each transaction.
On that basis, the Chamber applies the principle of consistent interpretation, which requires national courts to interpret domestic law, as far as possible, in the light of the wording and purpose of directives. The 2015 addition to article 89.2 LIS would not have created anything new, but would have made express what was already required by that route. The consequence is that, also in adjustments of tax years prior to 2015, the absence of valid economic reasons does not necessarily lead to the total rejection of the regime, but to the elimination of the tax advantages sought abusively, which must be identified in the assessment.
Second conclusion: deferral is not, in itself, an abusive tax advantage
In our view, the core of the judgment lies in this second question. The Supreme Court starts from a premise it had already formulated in its judgment of 16 November 2022 (appeal 89/2018): obtaining a tax advantage is inherent in the deferral regime and does not, in itself, render it illegitimate. Deferral is the technique through which the regime achieves its aim of tax neutrality. Eliminating it automatically would amount, quite simply, to eliminating the regime.
From this the Chamber draws its central criterion. Deferral may only be eliminated if it represents the main objective pursued by the transaction, and the Administration must justify this by means of a reinforced statement of reasons, including the identification of evidence clearly indicative of that purpose. The burden of that proof lies with the Administration, in line with the ruling of the Court of Justice in Euro Park Service.
Applied to the case, the outcome follows without difficulty. The assessment identified as the abusive advantage the reduction in the taxation of dividends, but not the deferral of the capital gain. The deferral had been eliminated as an automatic consequence of the absence of valid economic reasons, with the sole statement that the capital gains had to be subject to Personal Income Tax “without enjoying the benefit of deferral”. The Supreme Court upholds the appeal, annuls the assessment and recognises the right to a refund of the amount paid under that heading, together with late-payment interest.
One point should be clarified which, as we shall see, has proved decisive. The order admitting the appeal raised a third question: whether the exemption in article 21 TRLIS —the one that avoids the double taxation of dividends— could be regarded as an abusive tax advantage. The Chamber does not answer it, for a procedural reason: it had not been debated at first instance, and cassation does not allow abstract answers to questions unrelated to the ratio decidendi —the decisive ground of the ruling— of the judgment under appeal.
The TEAC’s first application: declared alignment, its own reading
The TEAC, in its resolution of 8 October 2026, analyses a 2015 share exchange in which an individual contributed to a newly incorporated holding company 95% of an operating company with accumulated profits, which were subsequently distributed as dividends to the holding company. And it devotes an entire legal ground to the effects of judgment 949/2026.
Its first assertion is that its doctrine, maintained since 2024, is “in complete alignment” with that of the Supreme Court. For the TEAC, the anti-abuse clause, as a special rule, only allows the correction of the effects proper to the FEAC regime, namely deferral and, where applicable, the acquirer’s subrogation to certain tax credits of the transferor. It does not, by contrast, allow the elimination of the article 21 LIS exemption. For that reason, where the abuse consists in channelling to the shareholder the profits already generated by the operating company without taxation under Personal Income Tax, the correction is made by partially reversing the initial deferral, and only in the tax years in which that abuse is consummated through the effective distribution of dividends out of pre-contribution profits that are not reinvested in another business activity.
According to the TEAC, this method meets the Supreme Court’s requirements because it avoids both possible forms of automatism. It avoids the quantitative one, because only the part of the deferred capital gain corresponding to the abuse is taxed. And it avoids the temporal one, because tax is only levied when the abuse materialises, not in the tax year of the contribution. Applying that criterion, the resolution annuls the adjustment of the 2015 Personal Income Tax and refers the correction to the 2016 and, where applicable, 2017 tax years.
The second assertion is the most relevant. The TEAC maintains that the reinforced statement of reasons is satisfied where the Administration proves the abuse in the distribution of those dividends to the holding company, even if it does not classify the deferral, considered in isolation, as abusive. Deferral and exemption would be, in its analysis, two pieces of a single mechanism, so that the finding of abuse falls on both simultaneously.
It adds that the solution to the specific case decided by the Supreme Court cannot be carried over. Since the Supreme Court was unable to rule on whether the advantage deriving from the dividend exemption is abusive, it could only examine deferral in isolation from its consequences, and in those circumstances it could not but conclude that its elimination had been automatic.
Our assessment
The TEAC resolution is carefully constructed and, as regards quantitative and temporal proportionality, offers a reasonable method that is more respectful of neutrality than the previous practice of taxing the entire deferred capital gain in the tax year of the contribution.
Nevertheless, we do not entirely share its reading of the judgment. The Supreme Court does not merely state that, in the specific case, the elimination was automatic. It lays down as doctrine that deferral may only be eliminated if it constitutes “the main objective” of the transaction, and expressly reasons that, in that case, the advantage identified was the reduction in the taxation of dividends and not the deferral. The TEAC’s thesis, according to which it suffices to prove the abuse in the dividends for the abusive nature of the deferral to be considered duly reasoned, reintroduces indirectly the connection that the judgment appears to seek to sever.
It is true, in fairness, that the Chamber left unresolved the question of the dividend exemption and that this gap gives room to the TEAC’s interpretation. But we consider that the risk of the courts not accepting that reading is real, and that litigation on this point will be high until the Supreme Court rules again. Note, moreover, that the TEAC itself classifies its criterion as relevant but not yet reiterated, so that it does not constitute binding doctrine for the purposes of article 239 of Act 58/2003, of 17 December, General Tax Act.
Practical consequences
For anyone facing an open tax audit or review procedure concerning a contribution or share exchange placed under the FEAC regime, the judgment offers weighty arguments. If the assessment eliminates the deferral as a direct consequence of the absence of valid economic reasons, without identifying that deferral as the abusive advantage pursued and without a reinforced statement of reasons supported by evidence, the adjustment is hardly sustainable. And this applies also to tax years prior to 2015.
For anyone planning or having carried out a reorganisation with a holding company, the TEAC resolution indicates fairly clearly where the Administration will place its focus: the profits accumulated in the operating company before the contribution and their subsequent destination. It is therefore advisable to document the traceability of those reserves and, if they are distributed to the holding company, to evidence their reinvestment in business activities, because it is precisely their outflow to the shareholder’s personal sphere or to a passive investment that, according to the TEAC, consummates the abuse.
In conclusion, what this Supreme Court judgment makes clear is that deferral cannot be lost merely because valid economic reasons are lacking; what the TEAC’s first resolution anticipates is that the Administration will seek to reach the same result by way of dividends, taxing the deferred capital gain as pre-contribution profits leave the business. The debate, therefore, is not closed.