Search

How can we help?

Icon

Companies Act and Brexit – practical considerations

UK companies need to review the impact of Brexit on their governance arrangements

Governance rules are principally found in the Companies Act 2006 which is part of UK domestic law.  For the most part, leaving the EU will have little impact on the way UK limited companies are required to operate under this Act.  There are, however, some important changes that companies need to know.

The EU cross border merger regime, which enables a UK company to merge with a company from an EEA (European Economic Area) state, will cease to apply from 1 January 2021.

The Accounts and Reports (Amendment) (EU Exit) Regulations 2019 will amend certain accounting rules under the Companies Act 2006.  The definitions of micro, medium and large companies for determining which accounting documents need to be filed at Companies House are changing.  Accounting exemptions may no longer apply to UK companies with an EEA parent.  The ability for a UK company with an EEA parent to file dormant accounts will also be restricted.

The Companies House filing requirements for UK companies with EEA corporate directors or company secretary are also changing. Companies House will require further information for these officers, including how they are legally constituted and confirmation of the law under which they are governed.

The EU cross border merger regime, which enables a UK company to merge with a company from an EEA (European Economic Area) state, will cease to apply from 1 January 2021.

Immediate action points on Companies Act for UK companies 

  • Those UK companies that comprise part of a group, where part of that group sits in the EEA, should take accounting advice to understand the impact of Brexit on the production of group accounts and financial statements
  • Company secretaries, or directors generally, should consider their board composition to identify if any further reporting is required for their overseas corporate officers
  • UK companies should check the beneficial ownership of stakeholders who hold more than 25% of the company where those owners sit in the EEA to ensure all reporting obligations are being complied with.

Disclaimer
This information is for guidance purposes only and should not be regarded as a substitute for taking legal advice. Please refer to the full General Notices on our website.

Author profile

About this article

Read, listen and watch our latest insights

art
  • 20 May 2026
  • Immigration

AI vs Home Office approved Translations – why migrants are paying the price

AI is transforming almost every professional sector. Law firms now use AI-assisted drafting, businesses rely on automated translation software, and governments increasingly use digital systems for decision-making.

art
  • 20 May 2026
  • Employment

Trade Unions Right of Access from October – What you need to know

Under the Employment Rights Act 2025, independent Trade Unions (i.e. those with a certificate of independence) will have a right to access workplaces (physically and digitally) from October 2026.

art
  • 19 May 2026
  • Privacy and Data Protection

New Complaints Procedure for Data Protection Coming in June – Are You Ready?

The Data (Use and Access) Act 2025 (the “Act”) received Royal Assent last year and introduces slight reforms to the UK’s data protection regime.

art
  • 18 May 2026
  • Commercial Real Estate

Land Registry title to property mines and minerals

Depending on the location of the property, it is quite common in parts of England and Wales for a property title to contain a reference to mines and minerals, and for these to be excluded from the surface owner’s ownership in favour of another party.

art
  • 13 May 2026
  • Employment

10 top tips for negotiating a redundancy settlement agreement, for employers and employees

Redundancies are on the rise, resulting in increased use of settlement agreements. We’ve compiled our top 10 tips for drafting and negotiating these agreements to support both employers and employees through this challenging process.

art
  • 12 May 2026
  • Immigration

Supplementary Employment: When is it Allowed under UK Immigration Rules?

This article provides a guidance to understanding the rules on supplementary employment in the UK.