New EU rules for large companies: what do the guidelines on the abuse of market power mean for you?
11 September 2026
On 3 September 2026, the European Commission published new guidelines on how it deals with large companies that abuse their market power to sideline competitors. Following a three-year process, involving extensive consultations with businesses, academics and public authorities, clear rules are now in place. These guidelines are important for anyone doing business in the EU.
The background
Imagine this: a single company is so large and powerful in a particular market that competitors have hardly any fair chance to grow or even enter the market. That is what competition law seeks to prevent. European rules have long prohibited this: Article 102 of the EU Treaty stipulates that a company with a dominant position must not abuse that position to drive others out of the market. But what exactly constitutes ‘abuse’ has been a matter of dispute for years.
Until now, the Commission has used a 2008 document as a guide, which no longer accurately reflected current practice involving large technology companies and digital platforms. That document is now being withdrawn and replaced by the new guidelines.
What is changing?
For the first time, the new guidelines explain in a coherent manner how the Commission assesses whether a company is dominant and whether it is abusing its position to squeeze out competitors. A number of points stand out.
When is a company ‘dominant’? A company that controls more than half of a market is generally regarded as dominant. However, a dominant position can also exist with smaller market shares, sometimes even below forty per cent. This is the case, for example, if customers are heavily dependent on that company or if it is practically impossible for competitors to enter that market.
What constitutes prohibited conduct? The guidelines describe specific forms of abuse: predatory pricing (setting prices so low that competitors go bankrupt), exclusive dealing arrangements (requiring customers to buy exclusively from the dominant firm), refusing to supply competitors, and tying. Another new feature is the explicit focus on behaviour that is, by its very nature, harmful to competition, such as the active dismantling of infrastructure on which a competitor relies, in which case the Commission is now required to prove virtually no justification at all.
When is such conduct nevertheless permitted? A dominant firm may defend itself by demonstrating that its conduct is objectively necessary or that the benefits to consumers outweigh the disadvantages. The bar is set high: the greater the market power, the more convincing the evidence must be.
Implications for practice
The new guidelines are primarily intended to provide clarity. Any major market player operating in Europe would be well advised to assess its commercial strategy against these guidelines. Issues such as discount structures for large customers, exclusivity agreements with distributors or the refusal to grant access to proprietary infrastructure can now be assessed against a clearer framework.
For smaller companies and new entrants, the publication actually provides a framework: if you suspect that a major player is forcing you out of the market, the guidelines offer tools to substantiate a complaint to the Commission or the national competition authority. National courts can also use the guidelines as a point of reference.
The Commission emphasises, however, that the guidelines relate exclusively to behaviour that excludes competitors. Abuse that directly harms consumers — such as excessively high prices — falls outside the scope of the current guidelines; the Commission reserves the right to publish separate guidelines on this at a later date. Furthermore, the Court of Justice of the EU has the final say on the interpretation of the concepts set out in the new guidelines .
Do you have any questions about the new guidelines, or would you like to know what they mean for your business or sector? Please contact Arnout Koeman, Monika Beck or one of our other Competition and EU specialists.