Key data
| Regulation | Agreement between the European Union and the United Kingdom of Great Britain and Northern Ireland on cooperation in the application of their respective competition rules |
|---|---|
| Official reference | OJ:L_202602305 |
| Publication | 19 October 2026 |
| Entry into force | Not specified in the published text |
| Authorities involved | European Commission and Competition and Markets Authority (CMA) of the United Kingdom |
| Affected parties | Companies operating in the EU and the United Kingdom, especially in sectors with high market concentration |
| Category | European Regulation |
| Relationship with other agreements | Complements the EU-UK Trade and Cooperation Agreement; does not replace it |
If your company sells, buys, merges, or has a relevant position in both the European Union and the United Kingdom, this agreement directly affects you. For the first time since Brexit, the European Commission and the British Competition and Markets Authority (CMA) have a formal bilateral framework to coordinate their competition investigations.
The agreement, published on 19 October 2026 with reference OJ:L_202602305, is not a minor development: it closes the regulatory gap left by the United Kingdom's exit from the European competition system and establishes concrete cooperation mechanisms that can be activated at any time.
What does this regulation establish?
The agreement creates a formal cooperation framework between the two main competition authorities on either side of the English Channel. Its pillars are three:
| Mechanism | What it consists of | Implication for companies |
|---|---|---|
| Coordination in parallel investigations | Both authorities can align timelines, approaches, and conclusions when investigating the same company | An investigation in the EU can trigger or accelerate a parallel investigation in the United Kingdom, and vice versa |
| Exchange of non-confidential information | The Commission and the CMA can share data and information about cases, provided they are not confidential | Information you provide in one proceeding may be known to the other authority |
| Mutual notification | Each authority must notify the other when its actions may affect the interests of the other party | Greater regulatory transparency, but also greater exposure if acting in both markets |
The agreement does not replace the EU-UK Trade and Cooperation Agreement, but complements it specifically in competition matters. That is, it is added to the post-Brexit legal architecture as an additional layer of coordinated regulation.
Economic and operational impact
The impact is not a direct fine or fixed cost: it is an increase in regulatory risk for companies with presence in both markets. Before this agreement, a company under investigation in the EU could manage the European procedure in relative isolation from the British process. Now, that separation is significantly reduced.
The concrete operational effects are:
- Greater consistency in competition decisions between the EU and the United Kingdom: what is resolved in Brussels will carry more weight in London, and vice versa.
- Possible simultaneous actions: a merger, a commercial agreement, or a pricing practice can be investigated at the same time by the European Commission and the CMA, doubling the costs of legal defense and compliance.
- Greater regulatory effectiveness: authorities will be faster and more effective by sharing information, which reduces resolution timelines but also reduces the room for maneuver of investigated companies.
- Impact on merger and acquisition processes: M&A operations with EU-UK dimension will need to anticipate coordinated review, with the legal advisory costs that this entails.
Who does it affect?
- Companies with subsidiaries, distributors, or relevant customers in both markets (EU and United Kingdom).
- Business groups that have carried out or plan mergers or acquisitions with cross-border EU-UK dimension.
- Companies in sectors with high market concentration: technology, telecommunications, pharmaceuticals, energy, food distribution, transport.
- Companies that may have a dominant position in one or both markets.
- Companies that participate in commercial agreements, exclusive distribution contracts, or pricing practices with cross-border scope.
- CFOs, legal directors, and legal advisors who manage regulatory compliance in operations with the United Kingdom.
Practical example
Imagine a Spanish food distribution company operating in Spain, France, and the United Kingdom that is being investigated by the European Commission for possible coordinated pricing practices with its competitors in the European market.
Before this agreement, the British CMA did not have a formal channel to receive information about that investigation or to coordinate its own steps with Brussels. With the new framework, the European Commission can notify the CMA that its actions in the European market may affect the British market. The CMA, in turn, can open its own parallel investigation and receive non-confidential information from the European file.
The result: the company faces two simultaneous proceedings, two legal teams, two defense strategies, and two potentially different resolutions—although more aligned than before. The cost of legal defense and compliance multiplies, and the periods of uncertainty lengthen.
What should companies do now?
- Map your regulatory exposure in both markets: identify in which activities, products, or commercial agreements you have simultaneous presence in the EU and the United Kingdom, and assess whether any of them could attract the attention of competition authorities.
- Review cross-border commercial contracts and agreements: exclusive distribution agreements, pricing, market allocation, or non-compete clauses must be reviewed under the lens of both competition regulations.
- Anticipate the UK dimension in M&A operations: if you have a planned merger or acquisition with impact on the British market, incorporate from the start the CMA analysis and possible coordination with the European Commission.
- Update internal competition compliance protocols: compliance programs must reflect that an action by the European Commission can have direct consequences in the United Kingdom, and vice versa.
- Consult with legal advisors specialized in EU-UK competition law: coordination between jurisdictions requires experts who know both systems and can manage parallel defense strategies if necessary.
Frequently asked questions
What competition authorities are involved in this agreement?
The agreement binds the European Commission (competition authority of the EU) and the Competition and Markets Authority (CMA) of the United Kingdom. They are the two authorities that can coordinate investigations, exchange non-confidential information, and notify each other when their actions may affect the interests of the other party.
Can the CMA use information from a European investigation against my company?
The agreement allows the exchange of non-confidential information between both authorities. Confidential information is protected. However, mutual notification and coordination of parallel investigations mean that the CMA can act with greater knowledge of what the European Commission is investigating, and vice versa.
Does this agreement replace the EU-UK Trade and Cooperation Agreement?
No. The agreement complements the EU-UK Trade and Cooperation Agreement, but does not replace it. It is added as a specific instrument in competition matters, closing the gap that existed in this specific area since Brexit.
When does this agreement enter into force?
The entry into force date is not specified in the text published on 19 October 2026. Companies must monitor the publication of the official date and not assume they have a long adaptation period.
Which sectors are most at risk of being affected?
The agreement expressly points to companies operating in both markets, especially in sectors with high market concentration. Historically, this includes technology, telecommunications, pharmaceuticals, energy, food distribution, and transport. Any company with a relevant position in any of these sectors in the EU and the United Kingdom should review its exposure.
Official source
Consult full regulation at official source
Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://eur-lex.europa.eu/./legal-content/AUTO/?uri=OJ:L_202602305
