The European Commission has fined Google €2.95 billion for abusive practices in online advertising technology, the regulator announced in its decision made public on 5 September 2025.

The penalty lands on Alphabet's advertising arm in Brussels. It is the latest chapter in a long-running confrontation between the European Union's competition authority and the world's largest digital advertising company. The Commission, the EU's executive body and antitrust enforcer, found that Google abused a dominant position in the market for advertising technology.

The decision targets how Google operates across the complex machinery of digital advertising. That machinery matches advertisers with publishers in automated auctions running in milliseconds. The Commission's finding of abuse centres on Google's conduct in this online advertising technology sector, an area where the company has long held powerful positions on both the buying and selling sides of the transaction.

What does the decision actually do?

The Commission imposed a financial penalty of €2.95 billion on Google. The sum ranks among the largest fines the EU executive has ever levelled against a single company, and it follows earlier multi-billion-euro punishments the same authority handed to Google in the shopping comparison and Android cases of previous years.

The finding of abusive practices means the Commission concluded Google breached Article 102 of the Treaty on the Functioning of the European Union, the provision that prohibits dominant companies from abusing their market power. Google now faces the choice of appealing to the EU's General Court in Luxembourg or changing how its advertising technology business operates in Europe.

Who decided, and when?

The deciding body is the European Commission, specifically its competition directorate, which polices cartels, mergers and monopolies across the 27-member bloc. The decision was announced on 5 September 2025. The case opened formally in June 2023, when the Commission sent Google a statement of objections setting out its preliminary concerns about the ad tech value chain.

What does it mean for practitioners?

For antitrust lawyers, the decision confirms the Commission's willingness to attack dominance-related conduct in digital markets through classic treaty tools rather than waiting for the Digital Markets Act to bite. Companies holding strong positions in intermediated markets should review their conduct for self-preferencing risks. Google's legal team will weigh an appeal, and any challenge would go to the General Court, with a possible further appeal to the Court of Justice on points of law.

For the advertising industry, the decision signals continued regulatory pressure on the plumbing of programmatic advertising. Publishers, advertisers and rival technology providers will watch closely for remedies or follow-on private claims, which EU law allows injured parties to bring in national courts.

How big is the fine in context?

The €2.95 billion penalty adds to a substantial record of EU enforcement against Google. The company has previously received Commission fines exceeding €8 billion across three separate cases since 2017. Friday's decision brings the cumulative total above €11 billion.

The Commission has not ruled out further action. Whether Google appeals, complies, or does both, the message from Brussels is plain enough: the era of tolerating concentrated power in advertising technology has ended, and the regulator now has the receipts to prove it.