A multinational entering the Spanish market discovers, months after completing a merger. That the transaction required prior notification to the national competition authority. and that failure to notify carries sanctions that can reach a significant share of the group's annual turnover. The procedural clock started running on the day the transaction closed, not the day the company learned of its obligations.
Competition law in Spain is governed by a dedicated body of competition legislation administered by the Comisión Nacional de los Mercados y la Competencia (National Markets and Competition Commission, CNMC), Spain's primary competition authority. Prohibited conduct – including cartel arrangements, abuse of market dominance, and anticompetitive agreements – may trigger administrative sanctions, civil liability, and, in serious cases, criminal referral. Merger notification thresholds apply at both Spanish national and EU levels, and the applicable regime depends on the combined turnover of the parties in Spain.
This page explains the principal instruments of Spanish competition law, the procedures and timelines that international businesses must plan around. Common pitfalls for foreign operators. Additionally, the cross-border strategic considerations that arise when Spain sits alongside Portugal or the broader EU in a group's operating footprint.
The Spanish competition law regime and its regulatory architecture
Spanish competition legislation establishes a dual prohibition system. It bans agreements between undertakings that restrict or distort competition, and separately prohibits the unilateral abuse of a dominant position. Both prohibitions track the substance of EU competition rules closely, but Spain applies them autonomously when the conduct does not affect trade between EU member states.
The CNMC is the administrative body responsible for investigation, enforcement, and – in merger cases – clearance decisions. It operates independently from the government and has the power to conduct dawn raids, impose interim measures, accept commitments, and levy substantial fines. Regional competition bodies in Catalonia, the Basque Country, and several other autonomous communities also hold concurrent jurisdiction over conduct that affects only their regional markets. Understanding which authority has jurisdiction over a given matter is a threshold question that shapes the entire procedural strategy.
Spain's courts play a parallel role. Follow-on damages claims are heard by specialist commercial courts (Juzgados de lo Mercantil), and the Tribunal Supremo (Supreme Court of Spain) sets binding precedent on competition law interpretation. Private enforcement has grown substantially since the transposition of the EU Damages Directive into Spanish law. This means that CNMC infringement decisions now create a presumption of liability in civil proceedings. a development that significantly raises the commercial consequences of any administrative finding.
For businesses incorporated as a Sociedad Anónima (SA, a public limited company) or a Sociedad Limitada (SL, a private limited company) operating in Spain, competition obligations attach at the entity level. Group structures do not insulate individual subsidiaries from liability where the parent exercises decisive influence, and the CNMC regularly attributes conduct across corporate groups when assessing the scope of an infringement.
Key instruments: notifications, investigations, and leniency
Spanish competition law provides three primary procedural pathways that international clients regularly encounter: merger control, cartel and abuse investigations, and the leniency programme. Each follows a distinct timeline and carries different strategic imperatives.
Merger control. Transactions that meet the Spanish turnover thresholds must be notified to the CNMC before implementation. The authority conducts a Phase I review within one month of accepting a complete notification. If concerns arise, the case enters a Phase II investigation, which may last up to three additional months – with possible extensions where remedies are under negotiation. Closing a qualifying transaction without clearance constitutes a gun-jumping violation. Fines for gun-jumping are calculated by reference to the group's total turnover, not merely the value of the transaction. Companies whose combined EU-level turnover meets the thresholds under EU merger regulation instead notify the European Commission rather than the CNMC, though parallel national filings can arise in certain referral scenarios.
Cartel and abuse investigations. The CNMC may open an investigation on its own initiative, following a complaint, or pursuant to a leniency application. Once a formal investigation is opened, the authority has a maximum of 18 months to issue a statement of objections, extendable in complex cases. Parties receive an opportunity to respond, attend an oral hearing, and submit additional evidence before the CNMC's Council issues a final decision. Administrative fines for serious infringements. price-fixing cartels, market-sharing agreements, and sustained abuse of market dominance. can reach a level that makes the cost of non-compliance substantially exceed the legal fees required for preventive compliance work.
Leniency programme. The Spanish leniency programme allows undertakings that participated in a cartel to apply for full immunity or a significant reduction in fines, in exchange for disclosing the infringement and cooperating with the CNMC. Full immunity is available only to the first applicant that provides information not previously held by the authority. Subsequent applicants may receive partial reductions graduated by the value of their contribution. The leniency programme operates in parallel with the EU leniency system, and a single corporate group may need to file coordinated applications in multiple jurisdictions when the cartel operated across EU member states. In practice, the decision to apply – and the timing of that application – is one of the most consequential strategic choices a business in this situation will face.
For international businesses that operate through Spanish branches or subsidiaries, competition compliance programmes benefit from being documented formally and filed in the Registro Mercantil (Spanish Commercial Register) where required by corporate governance rules. Corporate decisions recorded before a Notario (Spanish notary public) may also be relevant in establishing the scope of a compliance commitment.
For a broader view of how competition disputes escalate into commercial litigation in Spain, see our page on commercial litigation services in Spain, which covers the parallel private enforcement track in detail.
To discuss how Spanish merger control or cartel exposure applies to your group's structure, reach out to info@ferrazwhitmore.com for a preliminary review of your situation.
Practical pitfalls for international clients
The most common mistake made by foreign operators entering Spain is assuming that the EU competition rules they already follow fully satisfy their Spanish obligations. This assumption is incorrect in two respects. First, Spanish competition legislation applies to conduct that does not affect inter-state trade and therefore falls outside EU jurisdiction. Second, Spain's procedural rules and notification thresholds are calculated on Spanish turnover figures, not EU-wide metrics, and a transaction that falls below EU merger regulation thresholds may still require CNMC notification.
A second pitfall involves information exchange within corporate groups. Practitioners in Spain note that the CNMC has taken an increasingly active view of internal communications between affiliated companies that operate in separate distribution tiers. Vertical arrangements – franchise agreements, exclusive supply contracts, resale price maintenance – are not exempt from scrutiny simply because they involve related entities if those entities have independent economic status in practice.
A third area of risk arises in joint ventures. Many international clients form joint ventures in Spain without assessing whether the combination triggers merger control obligations. A full-function joint venture that operates autonomously on a lasting basis constitutes a concentration under Spanish competition legislation and requires notification if the turnover thresholds are met. Failing to identify this at the structuring stage leads to the gun-jumping exposure described above.
Dominance assessments present a further area where foreign clients frequently underestimate their exposure. A company that holds a strong position in a narrow product or geographic market in Spain. even if it is a relatively modest player at the European level. may qualify as dominant for Spanish competition law purposes. The CNMC has pursued cases against undertakings whose EU-level market share would not ordinarily attract attention, because the relevant market was defined more narrowly at the national or regional level. Conducting an internal market dominance assessment before expanding distribution in Spain is prudent for any group that holds leading positions in its sector.
Timing errors in leniency applications are among the most costly mistakes. A company that delays its application – even by days – may lose full immunity if another cartel member files first. Legal counsel should be engaged at the earliest moment a potential cartel issue surfaces internally, before any external communication about the matter takes place.
Cross-border and strategic considerations: Spain, Portugal, and the EU
For businesses operating across the Iberian Peninsula, the interaction between Spanish and Portuguese competition law creates a layered compliance obligation. Both jurisdictions have domestic competition authorities with autonomous powers. Both have transposed EU competition rules into national legislation. But their procedural rules, leniency programme terms, and enforcement priorities differ in ways that matter when a commercial arrangement spans both markets.
A cartel that affects both Spain and Portugal will typically also affect inter-state trade and thus fall within EU jurisdiction. In such cases, the European Commission may take the lead, displacing national proceedings under the one-stop-shop principle. However, national authorities retain the power to apply national competition law alongside EU rules for conduct that has a primarily national impact. Coordinating strategy across three potential sets of proceedings – CNMC, Autoridade da Concorrência (Portuguese Competition Authority), and the Commission – requires early planning and consistent legal positions across all filings.
M&A transactions that involve Spanish and Portuguese targets simultaneously present a particular challenge. EU merger regulation thresholds must be checked first. Where those thresholds are not met, both the CNMC and the Portuguese authority may require separate national notifications, with different timelines and potentially different conditions. A Phase II review in Spain can run concurrently with a Phase I review in Portugal, compressing the timeline for the acquirer if the two proceedings do not align. For our analysis of the Portuguese competition dimension, see our service page on competition law in Portugal.
State aid is a related area that arises frequently in cross-border restructuring. Spanish regional governments and the EU have separate notification regimes for public subsidies and incentives. An international group that receives regional aid in Spain must assess whether that aid is compatible with EU state aid rules. and whether similar aid in Portugal creates a cumulation issue that requires disclosure to the Commission.
From a strategic perspective, the choice between contesting a CNMC decision and offering commitments is one of the most important decisions in an investigation. Commitments – behavioural or structural undertakings offered by the company – can be accepted by the CNMC to close a case without a formal infringement finding. This route preserves the company's ability to contest civil liability in follow-on proceedings, because there is no finding of infringement on which a damages claimant can rely. The trade-off is that commitments may require the company to modify its commercial practices in ways that affect its competitive position.
Companies preparing to enter the Spanish market can also benefit from pre-notification contacts with the CNMC in merger cases. Informal discussions with the authority before submitting a formal notification can shorten the Phase I review period and reduce the risk of a second-phase investigation. Practitioners recommend this approach particularly where the transaction involves markets that are new to the authority or where market definition is genuinely uncertain.
A detailed operational guide to setting up the legal entity for a Spanish market entry. covering the role of the Notario and the Registro Mercantil in company formation. is available in our guide to company formation in Spain.
For a tailored strategy on competition law compliance or regulatory proceedings in Spain, contact us at info@ferrazwhitmore.com.
Self-assessment checklist for Spanish competition law
This checklist is designed to help international businesses identify where Spanish competition law obligations arise. It is not a substitute for legal advice – each situation requires individual assessment.
Merger control applies if:
- The combined Spanish turnover of all parties exceeds the national notification threshold.
- The transaction constitutes a concentration – acquisition of control, merger, or full-function joint venture.
- The EU merger regulation thresholds are not met (otherwise, EU rather than Spanish procedure applies).
- Closing is planned before the CNMC has issued a clearance decision.
Cartel and dominance risk exists if:
- Your company holds a leading position in any product or geographic market in Spain, even if not dominant at EU level.
- Your company participates in trade association meetings, information exchanges, or joint tendering processes in Spain.
- Your distribution agreements include minimum resale prices, territorial restrictions, or exclusivity clauses affecting Spanish territories.
- A competitor or customer has approached internal staff about market conditions, pricing, or capacity.
Before initiating any competition procedure, verify:
- Whether the conduct or transaction affects Spain specifically, the EU as a whole, or both – this determines the competent authority.
- Whether a leniency application, if applicable, should be filed simultaneously in Spain and other affected EU jurisdictions.
- Whether any relevant corporate decisions need to be recorded through a Notario or entered in the Registro Mercantil.
- Whether your corporate group structure will result in parent-level liability for a subsidiary's conduct in Spain.
Frequently asked questions
- How long does a standard merger review take before the CNMC in Spain?
- A Phase I review is completed within one month of the CNMC accepting a complete notification. If the authority identifies competition concerns, the case moves to a Phase II review, which may take up to three additional months and can be extended where remedies are under discussion. In practice, the total process from notification to clearance typically runs between six weeks and five months depending on complexity.
- Does a competition investigation in Spain affect civil liability to third parties?
- Yes. A formal CNMC infringement decision creates a presumption of liability that civil claimants can rely on in follow-on damages proceedings before the commercial courts. Engaging a lawyer in Spain with experience in both administrative and civil proceedings is important from the outset. Because strategic decisions taken during the administrative phase. including whether to settle or contest. directly affect exposure in subsequent litigation.
- Is it possible to resolve a competition investigation in Spain without receiving a formal infringement finding?
- Yes, in certain cases. The CNMC may accept commitments offered by the parties under investigation. If accepted, the authority closes the case without making a finding of infringement. This approach can reduce the risk of follow-on civil damages claims. However, commitment proceedings are not available in cartel cases, and the suitability of this route depends heavily on the nature of the conduct and the stage of the investigation.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our competition law practice supports international clients through merger notifications, CNMC investigations, leniency applications, and private enforcement proceedings in Spain and across the EU. We combine Portuguese civil law expertise with English common law tradition – an advantage in cross-border matters where Iberian and English-speaking legal systems interact. The firm's attorneys have advised on competition-related transactions and regulatory proceedings across both civil law and common law systems, working with law firm clients in Spain and throughout Europe. As an international law firm in Spain and Portugal, Ferraz & Whitmore provides integrated support where a matter spans the Iberian Peninsula and the EU institutions simultaneously. To discuss your competition law situation in Spain, contact us at info@ferrazwhitmore.com.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.