Competition law guidance

Find out how to comply with competition law, with essential information for all businesses and sector specific guides.

You can also visit our Competition Act 98 guidance for detailed information on CMA investigation procedures, prosecutions and the application of competition law.

To learn about cartel activity visit our ‘Cheating or Competing?’ website or you can read our case studies for examples of anti-competitive practices.

Why competition is good for business

Competition law and your business

These guides explain the main things you need to know about complying with competition law. You can also take a short competition law quiz to test your knowledge of which types of business activity are illegal.

Accountants and auditors

Company directors

Project directors and managers


Guidance for both online and offline retailers and suppliers.

Private medical practitioners

Trade associations

Public sector procurers

Updates to this page

Published 18 November 2015