Company Name Change in United Kingdom – A Complete Guide

Changing a company name in the United Kingdom is a formal process governed by the Companies Act 2006. For legal, tax, and compliance professionals, it’s not just a matter of branding, it’s a statutory procedure with strict filing requirements and deadlines. In addition, the process demands careful planning to avoid delays or non-compliance. This guide explains the key stages, from decision-making to registration, and highlights the obligations that follow.

What rules apply to a company name change in United Kingdom?

A company’s legal name appears on its current certificate of incorporation or any later certificate of change. It must appear on all official documents and at the registered office. The new name must clearly distinguish itself from all names already on the register, include “Ltd” or “Plc” depending on the company type, and avoid offensive, misleading, or sensitive words unless you obtain prior consent. Names suggesting official status or certain regulated activities require written approval from the relevant authority. As a result, these requirements apply to every company name change in United Kingdom, whether prompted by rebranding, compliance needs, or corporate restructuring.

How is the decision to change the name taken?

Companies can authorise the change in three ways. The most common method is a special resolution passed by shareholders with at least 75% support. This can happen at a meeting (physical, virtual, or hybrid) or, for private companies, through a written resolution. If the Articles of Association give the board authority, directors can approve the change by passing a board resolution. Whichever route you choose, you must notify Companies House on the correct NM-series form within 15 days to remain compliant.

Which documents must be filed with Companies House?

The company must file the appropriate NM form—NM01 for a special resolution, NM04 for a change under the articles, or other forms for conditional changes—together with a copy of the authorising resolution or directors’ statement. If the name contains a sensitive word, you must include the relevant consent letter before registration. Paper filings require a single wet-ink signature from a director, while electronic filings use the filer’s authenticated credentials and do not require manual signatures. For example, a same-day online filing uses secure electronic authentication without additional paperwork.

When does a company name change in United Kingdom take effect?

The Registrar of Companies enters the new name in the register and issues a certificate of incorporation on change of name. The certificate date sets the effective date, not the resolution or filing date. Therefore, you cannot legally use the new name before that date. Timing is crucial, as using the new name too early could lead to compliance breaches.

How long does it take?

The timeframe depends on how quickly the company reaches a decision and the filing method used. Same-day electronic submissions received before 3 p.m. are usually processed that afternoon. Standard online filings often complete within 24 hours, while postal applications may take a week or more. However, the process can take longer if you must secure external approvals for sensitive words or regulated terms.

Are there post-registration obligations?

Yes. From the effective date, you must display the new name at the registered office and on all company documents, websites, and emails. If the Articles of Association still state the old name, amend and file them promptly. In addition, update statutory registers, bank mandates, contracts, and licences to reflect the change immediately.

Do proxies have a role in the process?

Proxies can attend, speak, and vote at meetings on behalf of a shareholder. They cannot sign written resolutions or statutory documents. Consequently, their role in a company name change in United Kingdom is limited to participation at meetings.

What’s next?

Managing a company name change in United Kingdom requires detailed planning and full legal awareness. For more insights into processes in other jurisdictions, explore our article The Smart Way to Manage your AGM Obligations in Bermuda.

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