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

Telecom operator KPN adjusts its telemarketing methods following ACM intervention

Publication News 23-06-2026

Following an intervention of ACM, Dutch telecom operator KPN has adjusted its telemarketing methods.
ACM argues for a single independent financial regulator for drinking water companies

Publication News 18-06-2026

ACM argues for charging a single regulator with the financial oversight over drinking water companies. That oversight over drinking water companies is very fragmented at the moment.
Turnover of parcel market went up, turnover of postal market remained stable

Publication News 18-06-2026

In 2025, the volume of postal market decreased further, whereas the number of parcels continued to grow.
Dutch energy supplier ANWB Energie’s commitment to ACM: compensations for small group of customers that are still waiting for their bills

Publication News 15-06-2026

ANWB Energie has made a commitment to ACM that it will compensate a group of approximately 700 customers that have not yet received their bills.

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.

Tip off

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.