In Portugal, competition enforcement is accelerating. The Autoridade da Concorrência (Portuguese Competition Authority) has intensified its supervisory activity, issuing substantive decisions on cartel conduct, market dominance abuse, and merger notification failures. International companies operating in Portugal that have not reviewed their compliance programmes recently face a material risk of investigation, significant financial penalties, and reputational damage.
Competition Authority actions in Portugal are governed by Portuguese competition legislation. This aligns closely with EU competition rules and empowers the Authority to impose fines. Conduct dawn raids. Additionally, refer matters to the Supremo Tribunal de Justiça (Supreme Court of Portugal) for judicial review. Companies with a market presence in Portugal – including foreign-owned subsidiaries and joint venture participants – are subject to these rules regardless of where their parent entity is incorporated. Enforcement is ongoing, with no single activation date, and compliance obligations apply continuously.
This alert covers the current enforcement priorities of the Portuguese Competition Authority, the categories of business most affected, applicable thresholds, and the immediate steps international companies should take to reduce exposure.
What has changed: enforcement priorities and recent developments
The Portuguese Competition Authority has shifted toward proactive, sector-led investigations rather than waiting for complaints. Digital markets, retail, healthcare, and logistics are among the sectors under active scrutiny. The Authority has demonstrated a clear appetite for pursuing cartel cases, dominance abuses, and procedural infringements – particularly failures to file mandatory merger notifications.
Under Portuguese competition legislation, undertakings found to have engaged in anti-competitive agreements – including price-fixing, market-sharing, and bid-rigging – face fines of up to ten percent of their total annual turnover. The same ceiling applies to abuse of a dominant position. These are not theoretical figures. The Authority has imposed multi-million euro penalties in recent enforcement cycles, and the Tribunal da Relação (Court of Appeal) has upheld several of these decisions on appeal.
Merger notification thresholds in Portugal are defined by reference to combined and individual turnover of the parties in Portugal. Companies that complete transactions without prior notification, where notification is required, face separate infringement proceedings and the risk of transaction invalidity. This procedural failure is one of the most common and most avoidable enforcement triggers for cross-border acquirers.
The Authority's leniency programme remains an active enforcement tool. A company that is party to a cartel and approaches the Authority voluntarily – before an investigation is opened – may obtain full immunity from fines. Subsequent applicants may receive partial reductions. The programme creates a structural incentive for cartel members to report first, which increases the likelihood that ongoing cartels will be detected. Companies that delay self-assessment risk being pre-empted by a co-participant who moves faster. For a broader view of how corporate disputes arising from competition investigations are handled in Portugal, the corporate disputes practice in Portugal provides relevant context on litigation and enforcement defence strategies.
The Authority also applies Portuguese corporate legislation (CSC) indirectly: when assessing turnover for penalty calculations, it consolidates group revenues across affiliated entities, consistent with how corporate groups are constituted under commercial law. This means the financial exposure of a subsidiary is not capped at its own revenues – the group's consolidated position determines the ceiling.
Who is affected and compliance deadlines
The following categories of business face the highest immediate exposure under current enforcement patterns:
- Companies with established market positions in concentrated sectors – including retail distribution, pharmaceutical supply, transport, and construction
- Foreign acquirers completing or recently completed transactions involving Portuguese targets, where merger notification obligations may not have been assessed
- Joint venture participants, trade association members, and companies that exchange commercially sensitive information with competitors
- Businesses operating in digital or platform markets, where the Authority has signalled particular interest in dominance and exclusivity arrangements
- Companies that have received requests for information from the Authority and have not yet responded formally
There is no single compliance deadline. Competition obligations in Portugal are continuous. However, practical deadlines arise in specific contexts: merger notification must be filed before completion of a qualifying transaction. responses to formal Authority requests carry their own stated deadlines. and the limitation period for past infringements under Portuguese competition legislation runs for a defined number of years from the date the conduct ceased.
Companies that have not conducted a competition law audit in the past two years should treat this alert as a trigger for immediate action. For tailored support on managing competition law exposure across Portugal and Spain, see our alert on competition enforcement trends in Spain for a comparative view of Iberian enforcement patterns.
To receive an expert assessment of your competition law exposure in Portugal, contact us at info@ferrazwhitmore.com.
Immediate actions for international companies
The following steps are appropriate for any international company with commercial operations, subsidiaries, or pending transactions in Portugal.
First, conduct an internal compliance audit. Review existing commercial agreements – including distribution, supply, and cooperation arrangements – against Portuguese competition legislation. Particular attention should be paid to any provisions that affect pricing, territory allocation, or customer exclusivity.
Second, assess merger notification obligations. If your company has completed or is planning a transaction involving a Portuguese business or assets, verify whether Portuguese merger notification thresholds are met. Late notification carries separate penalties. This assessment should be made before, not after, completion.
Third, review information exchange practices. Participation in trade associations and industry working groups can give rise to competition exposure if meetings involve the discussion of pricing, capacity, or commercial strategy. Circulate updated guidance to employees who participate in such forums.
Fourth, evaluate leniency programme eligibility. If an internal review identifies conduct that may qualify as an anti-competitive agreement, legal counsel should assess whether a leniency application is warranted before a formal investigation is opened. Once an investigation begins, immunity is no longer available to the first applicant on all matters.
Fifth, establish dawn raid protocols. The Authority has authority to conduct unannounced inspections of business premises. Companies that do not have documented internal procedures for managing such inspections. including who to contact. What employees may say. Additionally, how to handle document requests. are at a procedural disadvantage from the first moment of contact.
The competition law practice in Portugal at Ferraz & Whitmore covers all aspects of these enforcement scenarios, from pre-emptive compliance reviews to representation in Authority proceedings and appeals before the Tribunal da Relação.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our competition law team combines Portuguese civil law expertise with English common law tradition to support international companies on cartel defence, dominance assessments, merger notification, and leniency applications in Portugal and across the EU. As a law firm in Portugal with broad cross-border reach, we regularly advise multinationals, private equity investors. Additionally, in-house legal teams who need practical. Results-oriented counsel. including representation before the Autoridade da Concorrência and in appeals to the Tribunal da Relação. Engaging a lawyer in Portugal with dual-system experience is particularly valuable when enforcement decisions carry cross-border consequences. The firm's competition practice covers both advisory and contentious mandates across civil law and common law systems. To discuss how current enforcement trends affect your business in Portugal, 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.