Netherlands Authority for
Consumers and Markets

The Netherlands Authority for Consumers and Markets (ACM) ensures fair competition between businesses, and protects consumer interests.

Action center

Information for businesses

Energy

Tariffs, network operation costs, small-scale users’ rights, early-termination fees, connections, tariff changes as suppliers, monitors.
Consumer protection

Return periods, warranties, cancellation of services, informing about prices and business details, delivery, unfair business practices, online sales
Competition

Cartels
Digital economy

Trusted flaggers, out-of-court dispute settlement bodies and vetted researchers
Caribbean Netherlands

Toezicht op de post- en telecommarkt, tarieven elektriciteit, tarieven drinkwater
Accessibility

Accessibility of e-commerce services and electronic communications services

Latest news

ACM publishes guidelines on sanctioned websites

Publication News 26-08-2026

The Netherlands Authority for Consumers and Markets (ACM) has published a set of guidelines that provides internet service providers with a practical list of websites that belong to entities (media or otherwise) that are sanctioned by the EU.
ACM organizes conference on the future of the European energy system

Publication News 24-08-2026

On September 24, 2026, ACM organizes the ACM Energizer conference on the theme ‘Together, we will shape the European energy system of the future’.
ACM’s Monitor on the consumer energy market: increase in the number of dynamic contracts continues

Publication News 13-08-2026

The number of households that took out dynamic contracts was still increasing in July, while the number of people with fixed contracts went down again. These are some of the conclusions of ACM’s Monitor on the consumer energy market.
Cruise travel agency adjusts sustainability claims following an ACM action

Publication News 13-08-2026

Cruise travel agency Captain Cruise has adjusted unsubstantiated sustainability claims regarding cruises on its website. It has done so after ACM had confronted the agency with those claims.

More news

Send us your tip-off

Is a firm not playing by the rules? Are, for example, your competitors concluding agreements regarding prices or customers? If so, please let us know. You can do this anonymously as well. Your tip-off can help us track down violations.

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About ACM

The Netherlands Authority for Consumers and Markets is an independent regulator. We are committed to ensuring that markets work well for people and businesses.
2026 ACM Agenda

The topics that ACM focuses on in 2026.