Commission warns Spain over illegal intervention in BBVA-Sabadell merger

The European Commission has fired a legal shot across Spain's bow, issuing a formal infringement notice on Thursday that accuses Madrid of violating EU banking law and single market rules by meddling in BBVA's hostile takeover of Banco Sabadell. The move marks the most assertive step yet by Brussels to force through cross-border banking consolidation, and it sets up a confrontation that could ultimately land before the Court of Justice of the European Union.

At issue is the Spanish government's decision last month to impose stringent conditions on the tie-up between the country's second- and fourth-largest lenders. That intervention came after the European Central Bank's supervisory arm and Spain's own competition authority, the CNMC, had both cleared the deal. The Commission's argument is straightforward: under the Single Supervisory Mechanism Regulation, only the ECB has the power to block or condition mergers involving significant institutions such as BBVA and Sabadell. National governments have no such authority.

The legal architecture behind the complaint

The Commission's legal service has built its case on three pillars. First, the Single Supervisory Mechanism Regulation (SSMR) grants exclusive competence over qualifying holdings and mergers of significant banks to the ECB's Supervisory Board. Spain's economy ministry, led by Carlos Cuerpo, used discretionary powers transposed from the EU's Capital Requirements Directive to impose conditions, powers the Commission says were misapplied. Second, the intervention constitutes a barrier to the free movement of capital and the freedom of establishment, both protected by the Treaty on the Functioning of the European Union. Third, the Commission argues that the Spanish conditions were not justified by financial stability concerns, the only legitimate ground for national intervention under the EU framework.

Notably, the Commission's competition directorate-general (DG COMP), led by Teresa Ribera, was not involved. The merger did not meet the turnover thresholds for EU merger control, so DG COMP had no jurisdiction. Instead, the financial services directorate (FISMA), under Commissioner Maria Luís Albuquerque, acted on an anonymous complaint. That procedural choice is deliberate: it allows the Commission to police the banking union's architecture without triggering the more politicised merger review process. But it also exposes a fault line between two commissioners whose portfolios overlap on banking structure.

Spain's defence and the political context

The Spanish economy ministry responded tersely, stating it had received the letter and would "continue to cooperate constructively" with the Commission. It added that the laws in question, including the discretionary powers for the economy minister, "have been in force for quite some years." That phrasing is telling. Spain is not denying it used the powers; it is arguing the powers themselves are legitimate because they have existed unchallenged. The government's underlying motive is widely understood to be political: Sabadell is deeply embedded in Catalonia's business fabric, and a hostile takeover by Madrid-based BBVA faces fierce opposition from Catalan politicians, small business groups and the regional government. Prime Minister Pedro Sánchez's coalition depends on Catalan nationalist support in parliament.

The Commission's statement accompanying the notice was blunt: "Consolidations in the banking sector benefit the EU economy as a whole and are essential for the achievement of the Banking Union." That sentence encapsulates the strategic frustration in Brussels. Nearly a decade after the banking union's launch, the single supervisory mechanism and single resolution mechanism exist, but the third pillar, a European deposit insurance scheme, remains blocked by Germany. Cross-border mergers, which would create genuinely pan-European banks capable of competing with US and Chinese giants, are routinely stymied by national interests.

The Italian parallel and a pattern of resistance

Spain is not alone. This month the Commission also escalated its scrutiny of Italy's intervention in UniCredit's bid for Banco BPM. Rome used national security provisions, the so-called golden power law, to impose conditions on a purely domestic banking merger. The Commission has sent a letter of concerns warning that Italy may have violated EU merger rules. A Commission spokesperson confirmed that a "pilot procedure", the informal fact-finding step before a formal infringement, is underway with Italy, and that Rome's responses are being examined.

The two cases share a common architecture: national governments using domestically transposed EU directives or national security laws to achieve outcomes that EU-level supervisors have already rejected. In both instances, the ECB's supervisory arm saw no obstacle. In both, the national competition authority cleared the deal. The political veto came afterwards, from finance ministries answering to domestic constituencies.

Germany's shadow over the debate

Germany looms over this debate. Berlin intervened extensively last year to prevent UniCredit from building a stake in Commerzbank that could have paved the way for a merger. The German government did not formally block the deal; it used its 12% stake in Commerzbank, acquired during the financial crisis, to signal opposition, while Chancellor Olaf Scholz publicly defended the bank's independence. No infringement procedure was opened against Germany, partly because the intervention took the form of shareholder influence rather than a formal ministerial decree. But the message to other capitals was clear: national champions remain national.

That double standard is not lost on Madrid or Rome. If Germany can protect Commerzbank through quiet pressure, why cannot Spain or Italy use the legal tools the EU itself gave them? The Commission's answer is that the SSMR created a specific, exclusive competence for the ECB, a competence that overrides national transposition measures. The Court of Justice will ultimately decide whether that hierarchy holds.

Institutional friction inside the Berlaymont

The choice to run the Spanish case through FISMA rather than DG COMP has raised eyebrows in Brussels. Teresa Ribera, a former Spanish vice-premier and ecological transition minister, now holds the competition portfolio. Maria Luís Albuquerque, a former Portuguese finance minister, holds financial services. Both are political heavyweights. Insiders suggest Albuquerque's team moved proactively to avoid the perception that the Commission was reluctant to challenge a member state on banking structure. But the turf question lingers: if the Commission wants to police banking consolidation, should that not sit with the competition enforcer, who has the investigative tools and the case law?

The Commission insists there is no conflict. A spokesperson said the action was taken "in response to a complaint" and that "the financial services department is the guardian of the banking union framework." That framing positions FISMA as the custodian of the SSMR, while DG COMP guards the merger regulation. The distinction is legally sound but politically fragile. If the Court of Justice rules against Spain, the precedent will strengthen FISMA's hand. If it rules that national transposition measures retain force, the banking union's legal architecture cracks.

What the Banking Union still lacks

The deeper story is the banking union's incomplete architecture. The single supervisory mechanism works: the ECB supervises 111 significant banking groups directly. The single resolution mechanism works: the Single Resolution Board can wind down failing banks. But the European deposit insurance scheme (EDIS), which would mutualise deposit protection across the euro area, has been stalled since 2015. Germany refuses to share liability for other countries' banks until risk reduction, lower non-performing loans, stronger capital, is complete. Southern members argue risk reduction requires the risk-sharing that EDIS would provide.

Without EDIS, cross-border mergers carry asymmetric risks. A Spanish depositor in a merged BBVA-Sabadell entity would be protected by Spain's national deposit guarantee fund, not a European one. If the merged bank failed, the resolution would be European but the deposit payout national. That disconnect gives national governments a rational, if protectionist, reason to resist mergers that could shift risk onto their domestic safety nets. The Commission's push for consolidation is, in part, an attempt to force the political logic of EDIS by creating facts on the ground.

The procedural clock starts now

Spain has two months to submit its formal observations. After that, the Commission can issue a reasoned opinion, the final step before referring the case to the Court of Justice of the EU. That referral could take years. In the meantime, BBVA's offer for Sabadell remains in limbo. The Spanish conditions effectively require BBVA to maintain Sabadell's brand, governance and Catalan operations for years, stripping out the cost synergies that make the takeover economically rational. BBVA has not withdrawn the offer, but it has signalled the conditions may render it unviable.

The Commission has other pilot procedures underway, though it declines to name the member states involved. The signal is clear: Brussels intends to test the legal boundaries of national intervention across the board. If the Court upholds the Commission's reading of the SSMR, governments will lose their most effective lever over banking structure. If it does not, the banking union will remain a supervisory union, not a structural one.

The Commission's move is a calculated gamble. By choosing the infringement route over the merger regulation, it avoids the turnover thresholds that would have left it powerless. But it also chooses a battlefield, the Court of Justice, where the Commission's record on banking union competences is mixed. The 2019 Court ruling on the SSMR confirmed the ECB's broad supervisory powers, but left open the precise scope of national transposition measures. This case will close that gap, one way or another.

For BBVA and Sabadell, the legal timeline is misaligned with commercial reality. The offer expires in October. The Spanish conditions, if upheld, destroy the synergy case. If the Commission wins in court years from now, the merger window will have closed. That asymmetry, slow law, fast markets, is the structural disadvantage the banking union has never solved. The Commission knows it. Albuquerque's team is betting that a credible legal threat forces Spain to negotiate, even before the Court rules. Whether Madrid calls that bluff will tell us how much political capital Sánchez is willing to spend on a Catalan bank.