Form IN01 Explained: Information You Must Provide

When you decide to form a company in England and Wales, one of the fundamental legal steps is completing Form IN01, the official application to register a private or public company with Companies House. This document is central to the incorporation process under the Companies Act 2006 because it collects essential information about the new company's identity, structure, leadership, financial framework, and compliance with statutory requirements. Submitting accurate and complete details on Form IN01 ensures timely registration and avoids common administrative setbacks.

This article provides a thorough explanation of every section of Form IN01, the information you must provide, practical considerations when completing the form, common pitfalls, and the importance of certain declarations and statements required by UK company law. Relevant statutory principles and procedural requirements are drawn from Companies House guidance and standard legal practice to make this accessible for business owners, advisers, solicitors, and students alike.

What Is Form IN01?

Form IN01 is the official application to register a private or public company with Companies House. It can be filed electronically through the company formation services offered by Companies House or by post using the paper form. For postal submissions, the current fee for paper applications is £124, whereas online filing through the standard service costs £100.

The form must be submitted alongside supporting documents including the memorandum of association and, where relevant, articles of association, unless model articles are being adopted automatically by the online application process.

Part A: Company Identity and Classification

Company Name

You must provide the proposed name of the company, which must comply with statutory rules on availability and appropriateness. The name must be unique and not already held on the register, and certain words may require permission from government departments.

Company Type and Liability

You must indicate whether the company will be:

• Limited by shares
• Limited by guarantee
• Unlimited

For companies limited by shares, indicate whether it is private or public, as this affects other legal obligations such as share capital requirements and financial reporting.

Registered Office Location

The form requires the registered office address and the country in which the office is located (eg England and Wales). The registered office is the official legal address where documents, notices, and correspondence will be sent. It must be a physical address and cannot be a PO Box unless part of an accepted service address.

Registered Email Address

A registered email address must be provided. This email is used by Companies House to communicate important notices and reminders to the company. The registered email address is not public.

Part B: Memorandum and Articles of Association

Memorandum of Association

Form IN01 requires an attached memorandum of association, which is the legal document showing the intent of the initial subscribers to form the company and become members. For companies limited by shares, it confirms their agreement to take at least one share each.

Articles of Association

You must indicate in the form whether the company is adopting:

• The model articles of association in their entirety
• Model articles with amendments or bespoke provisions

Only one option must be selected. Incorrect or incomplete information on articles can lead to rejection of the application.

Part C: Company Officers

Directors' Details

Form IN01 requires detailed information for each proposed director:

• Full name
• Date of birth
• Nationality and country of residence
• Usual residential address (not public by default)
• Service address (this is public)

All directors must be clearly identified and, under current regulations, their identity must be verified with Companies House before or during the process of incorporation.

Company Secretary (Optional)

If you appoint a company secretary, their details are also required. A secretary is optional for private companies but remains a legal officer of the company where appointed.

Part D: Share Capital and Initial Shareholdings

For a company limited by shares, detailed information about share capital is required:

• Total number of shares to be issued
• Aggregate nominal value of shares
• Details of each class of shares, including rights attached
• Initial shareholdings showing names, addresses, number of shares allocated, amount paid and unpaid on each share

This is known as the statement of capital and is a primary statutory requirement for companies with share capital.

Accurate share and shareholder information must be included because it forms part of the public company record and affects rights attaching to shares.

Part E: People With Significant Control (PSC)

The application must include details of any people with significant control (PSCs) who meet the statutory criteria, such as holding more than 25 % of shares or voting rights, or having significant influence or control. This information is submitted to Companies House and forms part of the central PSC register.

If there are no PSCs at incorporation, the company must provide a statement that no PSCs exist.

Part F: Declarations and Compliance Statements

Statement of Compliance

Form IN01 includes a mandatory statement of compliance confirming that all legal requirements for incorporation under the Companies Act 2006 have been complied with. This declaration is critical - without it, the application cannot be accepted.

Lawful Purpose Statement

You must confirm that the company is being formed for a lawful purpose and will not engage in unlawful activities. This helps ensure procedural transparency and compliance with statutory corporate governance.

Practical Steps and Submission

Completing Form IN01 generally involves the following practical steps:

1. Assemble required information and supporting documents such as the memorandum and articles of association.
2. Verify identities of directors and PSCs through the Companies House verification system.
3. Complete the form carefully, ensuring all fields are accurate and consistent.
4. Submit the form either online (quicker turnaround) or by post with the correct fee.

If submitted by post, you must use white A4 paper and include all necessary documents physically. Incorrect or incomplete submissions may be rejected, leading to delays.

Common Errors and How to Avoid Them

Companies House guidance on completing Form IN01 highlights typical errors that lead to rejection, such as:

• Missing or undated memorandum of association
• Invalid or duplicate company name
• Incomplete statement of capital totals
• Errors in prescribed particulars or share class details
• Selecting more than one option for the articles of association

Careful review before submission reduces the risk of administrative rejection and costly resubmissions.

Summary

Form IN01 is the backbone of company incorporation in the UK. It collects essential information about the company's identity, officers, share capital, corporate structure, and compliance with statutory requirements. Providing accurate and complete information - including directors' details, registered office address, share capital, PSCs, and compliance statements - is critical to successful company formation. Understanding what must be included and why it matters helps applicants avoid common mistakes and lays a solid foundation for lawful corporate governance and public record‑keeping in England and Wales.