This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Explore how a company in England and Wales can change its legal structure after incorporation, including re‑registration to a new company type, altering share capital, amending articles of association, filing requirements with Companies House, and practical and tax considerations for business reorganisation.
After a company is incorporated in England and Wales, directors and members often find that the original corporate setup no longer suits the business's growth, investment needs, governance preferences or commercial strategy. The good news under UK company law is that a company's structure can be changed after incorporation, but the scope of change and the legal processes involved depend on what aspect of the structure you want to modify.
This article explains the legal framework, steps for different structural changes, relevant obligations to Companies House and HMRC, potential tax and contractual considerations, and answers common questions. It is intended to help company directors, solicitors, and members of the public understand the options and obligations involved in changing a company's structure post‑incorporation.
What “Company Structure” Means
A company's legal structure encompasses a range of elements including:
- its company type (e.g. private limited, public limited, unlimited),
- its share capital and share structure,
- its articles of association, and
- its arrangements for directors, members and control rights.
Broadly speaking, “changing the structure” refers to formal adjustments to these legal and constitutional features so that the company operates under a different legal form or governance arrangement.
Legal Basis for Changing Company Structure
Under the Companies Act 2006, firms registered in England and Wales can make certain post‑incorporation changes, provided the requisite corporate approvals are obtained and the changes are filed with Companies House within specified time periods. For example, altering a company's type from private to public, changing share capital, or amending the constitution are all permitted but subject to different statutory requirements and resolutions.
Changing Company Type: Re‑registration
What Changes Are Possible
Companies can re‑register to alter certain legal characteristics by applying to Companies House and passing a special resolution:
- A private company can re‑register as a public limited company (PLC), subject to minimum share capital and governance requirements.
- A company can change its status between limited and unlimited forms, or between private and public, by re‑registration.
To effect a re‑registration, the company must:
- Pass a special resolution of members authorising the change.
- Prepare or amend its articles of association to reflect the new company type.
- File the appropriate re‑registration application with Companies House (typically using form RR01 for most changes).
- Pay any statutory filing fees.
Once approved, Companies House issues a new certificate of incorporation reflecting the changed status.
Important limitation: UK law generally does not permit changing a company's fundamental limited liability basis-for example, from a company limited by shares to a company limited by guarantee (or vice versa)-through simple re‑registration. To achieve such a fundamental change often requires setting up a new company with the desired structure and transferring the business and assets to it, followed by closing down the original company.
Altering Share Structure
Even within the same company type (e.g. a private limited company), you can change aspects of the share structure after incorporation. This includes:
- increasing or reducing share capital,
- creating new classes of shares with different rights,
- transferring shares between members, or
- changing rights attached to existing share classes.
Most changes to share capital involve passing the appropriate resolution (often a special resolution, but sometimes an ordinary resolution depending on the articles) and notifying Companies House with a statement of capital and relevant forms.
Adjusting share rights can be complex and may require amendments to the articles as well as clear documentation of the rights attached to each class. Legal advice is often recommended to prevent disputes and ensure compliance with both internal governance and statutory requirements.
Amending the Articles of Association
A company's articles of association set out the internal governance framework, including directors' powers, shareholder rights, voting procedures and distribution rules. Post‑incorporation, a company can amend its articles by passing a special resolution (usually requiring at least 75% of votes cast in favour).
Once adopted, the updated articles must be delivered to Companies House within 15 days. Failure to do so may result in penalties.
Amending the articles is one of the most common structural changes and can be used to:
- introduce or remove provisions restricting share transfers,
- change directors' decision‑making powers,
- adjust quorum and voting thresholds, or
- alter dividend and capital distribution rules (subject to other statutory constraints).
A landmark legal principle is that amending articles must be done “bona fide for the benefit of the company as a whole” and should not unfairly prejudice minority members, although the courts generally defer to internal corporate decisions where this threshold is met.
Issuing and Transferring Shares
Companies frequently adjust their membership or capital base after incorporation by issuing additional shares, allotting new classes of shares or effecting transfers between existing members.
This typically requires the board's authority, compliance with pre‑emption rights in the articles, and filing a return of allotment (Form SH01) or relevant documentation within one month. Share transfers also involve documenting the transfer, updating the statutory register of members, and notifying the next confirmation statement.
Such changes can affect control, dividend entitlements and voting arrangements, and may trigger tax or shareholder agreement implications, which should be considered before implementation.
Other Structural Changes After Incorporation
Companies can also undertake other non‑fundamental structural modifications, such as:
- Changing company name, which takes effect upon approval and must be filed with Companies House.
- Appointing or removing directors and company secretaries.
- Changing the registered office or accounting reference date.
- Updating people with significant control (PSC) information as ownership evolves.
These changes generally require filing specified forms within statutory time limits (e.g. 14–21 days) and may involve ordinary or special resolutions depending on the change.
Practical and Tax Considerations
Reconfiguring a company's legal structure, especially changes to company type or share arrangements, can have tax, contractual and regulatory consequences:
- Tax obligations: A change in structure may result in different tax regimes (e.g. between partnerships, LLPs and limited companies) requiring HMRC notification and potential re‑registration for VAT, PAYE and corporation tax.
- Contractual arrangements: Existing contracts, licences or funding agreements may require consent or novation if the party to the contract changes due to reorganisation.
- Third‑party rights: Certain lenders, customers or suppliers may have termination or consent rights triggered by significant corporate changes.
Professional advice from corporate solicitors and accountants is often recommended for major structural reorganisations.
Common Questions
Can a sole trader become a limited company?
Yes. A sole trader cannot “convert” itself; it must incorporate a new company, transfer assets and liabilities, inform HMRC, and then close the sole trader business if desired.
Can you switch a limited company to a partnership or LLP?
No direct conversion exists under Companies Act; changing between such fundamentally different structures requires forming a new entity. Assets and contracts must be transferred, and tax and regulatory obligations addressed.
Is there a deadline to change structure after incorporation?
No fixed statutory deadline as long as you comply with legal requirements, pass the necessary resolutions, and file timely notifications with Companies House. However, delays in filing can trigger penalties.
Key Takeaways
Companies in England and Wales can change various aspects of their structure after incorporation, including company type, share capital, governance arrangements and constitutional articles. Structural changes typically require members' approval (often a special resolution), amendments to internal documents, and timely notification to Companies House. More fundamental transitions-such as moving between incompatible legal forms-often require creating a new entity and transferring business assets. Directors should consider tax, contractual and compliance implications and may benefit from legal and financial advice when planning complex structural changes.
