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Rogue advisers illegally posing as lawyers will be stripped of their dirty money under new crackdown.

• Updated: 22 October 2025

Understand and avoid all types of anti-competitive and cartel activity including price-fixing, collusion, bid-ridding and sharing markets. Know how to report concerns to the CMA.

• Overview

  All businesses, whatever their size, must understand how they’re affected…

• Types of anti-competitive activity

  You must avoid all types of anti-competitive activity in your business…

• Manage risk

  The people who run your business are responsible for ensuring it does not…

• Report anti-competitive activity

  The way you report anti-competitive activity depends on the type of…

Information online sellers need to know about price-fixing and how to comply with competition law.

• Updated: 7 November 2016

Find out if you’re a high value dealer and need to register with HMRC under the money laundering regulations.

• Updated: 10 August 2022

• Updated: 19 January 2021

Information on how to confess a cartel, the CMA’s leniency programme and what to expect if the cartel activity was in Scotland.

• Updated: 31 March 2014

• Updated: 23 September 2022

Case studies showing examples of business cartels, and anti-competitive activity.

• Updated: 8 October 2018

Find out about exercising due diligence when making customs declarations.

• Updated: 28 January 2025

This guidance is intended to support billing authorities in interpreting the Non-Domestic Rating (Definition of Qualifying Retail, Hospitality or Leisure Hereditament) Regulations 2025 (SI 2025/1093) for the purposes of administering the business rates retail, hospitality and leisure (RHL) multipliers. As...

• Updated: 16 October 2025