Appointing a company secretary is a straightforward Companies House filing for most UK private companies, but the decision deserves more thought than simply completing a form. A company secretary can help manage statutory records, filings, governance procedures and important corporate administration. However, a private limited company does not generally have to appoint a company secretary unless its articles of association require one. Public companies, by contrast, must have a secretary who meets specific qualification requirements.

For founders, the real question is therefore not only “How do I appoint a company secretary?” but also “Do I need one, who should I appoint, and what responsibilities will they actually have?” This guide explains how to appoint a company secretary, the Companies House forms involved, eligibility requirements, reporting deadlines and the practical considerations businesses should address after the appointment.

What Is a Company Secretary?

A company secretary is an officer responsible for helping a company manage its corporate administration and governance. Depending on the business, the role can involve:

• Maintaining statutory company records
• Coordinating Companies House filings
• Supporting board and shareholder meetings
• Preparing or maintaining corporate documentation
• Monitoring important filing deadlines
• Supporting directors with governance requirements
• Maintaining the register of secretaries
• Liaising with accountants, lawyers and other professional advisers

The role is particularly valuable where a company has several directors, shareholders or investors and its corporate administration is becoming more complex. However, a company secretary is not simply an administrative assistant. The position sits within the company's formal governance structure, and the exact responsibilities depend on the company's circumstances and arrangements.

Does a UK Limited Company Need a Company Secretary?

This is the first question founders should answer.

Private limited companies

A private limited company generally does not need to appoint a company secretary unless its articles of association require one. This means a newly incorporated private company can often operate with directors but no secretary. For a small owner-managed business, that may be perfectly adequate.

Public limited companies

A public company must have a company secretary, and the secretary must meet the relevant qualification requirements. This is an important distinction. The rules that apply to a PLC should not automatically be applied to an ordinary UK private limited company.

Who Can Be a Company Secretary?

For a private company, the secretary does not generally need a specific professional qualification. The secretary can be:

• An individual
• A corporate body or firm, where permitted
• Someone who already works for the company
• A professional company secretarial service

A director can also act as the company's secretary in some circumstances, although there are restrictions concerning a company's sole director. Under the Companies Act framework, a private company with only one director cannot have that same person also appointed as its company secretary. The practical reason is that the secretary cannot simply duplicate the sole director's role where the legislation prevents that arrangement. For a growing business, appointing an independent person or professional provider can therefore create a useful separation between management and corporate administration.

What Does a Company Secretary Actually Do?

The responsibilities vary considerably between companies. A small private company might use its secretary primarily to keep filings and records organised. A larger business could expect the secretary to have a much broader governance function.

Companies House compliance

One of the most visible responsibilities is helping the company keep its Companies House information up to date. This can include monitoring changes involving:

• Directors
• Company secretaries
• Registered office
• Company details
• People with significant control
• Share structure and certain shareholder information
• Other statutory filings

Companies must notify Companies House of changes to company secretaries within 14 days.

Corporate records

The secretary may also help maintain the company's statutory registers and corporate records. That can include keeping evidence of:

• Director appointments and resignations
• Secretary appointments
• Shareholder resolutions
• Board decisions
• Changes to corporate structure

Good record-keeping becomes particularly important when a company raises investment, sells the business or undergoes due diligence.

Meetings and resolutions

A company secretary may coordinate board and shareholder meetings and help ensure that decisions are properly documented. For example, if shareholders approve a significant change to the company's share structure, the secretary may help prepare the necessary resolutions and corporate records.

How to Appoint a Company Secretary

For most private companies, the process can be broken down into several practical steps.

Step 1: Check the Articles of Association

Before making the appointment, review the company's articles of association. The articles are effectively the company's constitutional rules and can contain provisions concerning officers and how the company is governed.

A private company may appoint a secretary voluntarily, but if its articles contain a requirement for one, that requirement needs to be followed. If the company has amended articles or a shareholders' agreement, those documents should also be considered.

Step 2: Choose the Right Secretary

The next step is deciding who should take the role. The right person depends on the company's size and complexity. For a small business, it could be:

• A founder who is not the sole director
• An experienced administrator
• An accountant or professional adviser
• A specialist company secretarial provider

For a more complex company, the role may be better suited to someone with formal governance or company secretarial experience.

A useful rule of thumb

If the company's main requirement is simply keeping routine filings organised, a basic administrative arrangement may be sufficient. If the business has investors, multiple shareholders, complicated corporate structures or frequent board decisions, professional company secretarial expertise can become much more valuable.

Step 3: Obtain the Person's Agreement

The proposed secretary should agree to accept the appointment. The company should collect the information required for the Companies House filing and keep appropriate internal documentation showing the appointment. This is also a good opportunity to define the secretary's responsibilities. For example, a company might specify that the secretary is responsible for:

Monitoring Companies House deadlines, maintaining corporate records and coordinating shareholder and board documentation.

That is much clearer than simply describing someone as "company secretary" without defining what they are expected to do.

Step 4: Pass the Appropriate Corporate Decision

The appointment should be authorised in accordance with the company's articles and applicable company law. Depending on the company's circumstances and articles, this may involve a decision by the directors. The company should keep a written record of the decision.

For small companies, a formal meeting may not always be necessary if the decision can validly be documented in another permitted form. The important point is that the company's internal records should support what is subsequently reported to Companies House.

Step 5: File the Appointment with Companies House

Once the appointment has been made, the company must notify Companies House. For an individual company secretary, the relevant form is AP03 – Appointment of secretary. Companies House provides an online filing service as well as the paper form. If the secretary is a corporate body or firm, the relevant form is AP04 – Appointment of corporate secretary. Companies House currently states that changes involving company secretaries must generally be reported within 14 days.

AP03 vs AP04 at a glance

Companies House confirms that CH03 is used for changes to an individual secretary's name or address, while CH04 applies to changes involving a corporate secretary.

What Information Is Needed for AP03?

For an individual secretary, the filing requires information such as:

• Company name
• Company registration number
• Date of appointment
• Secretary's full name
• Former names where applicable
• Service address
• Relevant country and address details

The official AP03 form sets out the information required for an individual secretary's appointment. Because Companies House information is generally public, the distinction between a service address and a residential address is important. Founders should understand what information will appear on the public register before submitting a filing.

What Is a Corporate Company Secretary?

A company does not necessarily have to appoint an individual as secretary. A corporate body or firm can be appointed where the legal requirements permit it. For example, a growing company might use a specialist corporate services provider to handle company secretarial administration.

The filing is different from an individual appointment: AP04 is used for a corporate secretary. This arrangement can be attractive to international founders who want UK corporate administration handled locally while they remain based overseas. However, appointing a professional provider does not mean directors can ignore their own responsibilities. Directors remain responsible for running the company and complying with their legal obligations.

Can a Director Also Be the Company Secretary?

Sometimes, yes. A director of a private company can generally also hold the office of secretary, provided the statutory restrictions are respected. The major exception is the company's sole director: the sole director cannot simply appoint themselves as secretary. This makes the structure important for one-person companies.

Example

Imagine Daniel owns and runs a UK private limited company as its only director. He decides he wants the company to have a secretary. Daniel cannot simply list himself as both sole director and secretary. He would need another eligible person or corporate body to take the secretary role. By contrast, a company with two directors may be able to appoint one of those directors as secretary, provided the legal and constitutional requirements are satisfied.

Does a Company Secretary Have to Be UK-Based?

Not necessarily. The legal requirements are more nuanced than simply saying that every company secretary must live in the UK. The secretary's details must be properly registered with Companies House, including the required service address information.

For international founders, this means that appointing a secretary is not automatically the same thing as establishing a UK-resident management team. Where a business is using a professional provider, founders should understand exactly what services are being provided and where the provider is based.

Can an Overseas Founder Appoint a UK Company Secretary?

Yes, a UK company owned by an overseas founder can appoint a company secretary where the legal requirements are met. This can be useful for founders who operate their businesses internationally but want reliable UK corporate administration.

For example, an overseas entrepreneur might establish a UK limited company and appoint a professional company secretarial provider to help manage Companies House filings and corporate records. IncorpUK is one example of a UK company formation and management platform serving global founders; however, whether a professional secretary is appropriate depends on the company's actual needs rather than simply where its owners live.

When Should You Appoint a Company Secretary?

There is no universal point at which every private company needs one. However, an appointment can make sense when:

The company is growing

More directors, employees, investors and shareholders usually mean more corporate administration.

The company is raising investment

Investors often expect corporate records and filings to be well organised.

The founders are overseas

A reliable corporate administration function can make UK compliance easier to manage across time zones.

The company has several shareholders

Shareholder resolutions, registers and governance records become more important as ownership becomes more complicated.

Directors are focused on operations

A company secretary can take responsibility for administrative processes, allowing directors to focus on strategy and commercial decisions.

What a Company Secretary Does Not Do

It is equally important to understand the limits of the role. A company secretary does not automatically become responsible for every legal or financial obligation of the business. For example, appointing a secretary does not transfer the directors' fundamental responsibilities to someone else. Directors remain responsible for managing the company in accordance with their legal duties. A secretary also does not automatically become:

• The company's accountant
• Its tax adviser
• Its lawyer
• Its financial controller
• Its chief executive

The role is primarily concerned with corporate administration and governance, although its scope can be broader in larger organisations.

What Happens After Appointment?

After the Companies House filing has been accepted, the company should update its internal records and establish a working process for the new secretary. A practical onboarding checklist includes:

• Confirm the appointment date
• Retain evidence of the appointment
• Update the company's register of secretaries
• Confirm Companies House records are accurate
• Give the secretary access to relevant corporate records
• Establish filing-deadline reminders
• Clarify responsibility for Companies House filings
• Confirm who maintains board and shareholder records
• Review upcoming compliance deadlines
• Ensure the secretary understands the company's articles

Companies House states that companies must keep the registrar informed about their directors and company secretaries and report changes within the relevant deadlines.

Common Mistakes When Appointing a Company Secretary

Assuming every private company needs one

Most private limited companies do not have a mandatory secretary unless their articles require one.

Using the wrong Companies House form

Use AP03 for an individual and AP04 for a corporate secretary.

Filing late

The company generally has 14 days to notify Companies House of a secretary appointment.

Treating the secretary as a replacement for the directors

The secretary supports corporate administration but does not remove the directors' legal responsibilities.

Failing to define the role

A professional appointment is more effective when the company clearly establishes what the secretary is expected to handle.

Ignoring the articles

The company's articles may contain specific provisions affecting the appointment.

Company Secretary Appointment Checklist

Before submitting the filing, work through this checklist:

• Confirm whether a secretary is required or desirable
• Review the company's articles of association
• Choose an appropriate individual or corporate secretary
• Obtain their agreement
• Confirm the appointment date
• Gather the required personal or corporate details
• Authorise the appointment correctly
• Complete AP03 for an individual or AP04 for a corporate secretary
• File the appointment with Companies House within 14 days
• Update the company's internal register
• Establish the secretary's responsibilities
• Set up a system for monitoring statutory deadlines

Frequently Asked Questions

Is a company secretary mandatory for a UK limited company?

Not usually for a private limited company. A private company generally only needs a secretary if its articles of association require one. Public companies must have a secretary who meets the applicable qualification requirements.

How do I appoint a company secretary at Companies House?

First, appoint the secretary in accordance with the company's internal governance requirements. Then notify Companies House using AP03 for an individual secretary or AP04 for a corporate secretary.

How long do I have to appoint a company secretary?

Companies House generally requires changes involving company secretaries to be reported within 14 days.

Can a director also be a company secretary?

Yes, a director of a private company can generally also act as secretary, subject to the statutory restrictions. A company's sole director cannot simply appoint themselves as secretary.

Does a company secretary need a qualification?

A private company secretary does not generally need a specific qualification. A public company secretary must meet the qualification requirements set out in company law.

Can a company secretary be a company rather than a person?

Yes, a corporate body or firm can be appointed as a company secretary where permitted. Companies House uses AP04 for the appointment of a corporate secretary.

Can an overseas business owner appoint a UK company secretary?

Yes, an overseas founder can appoint an eligible secretary to a UK company. The appropriate structure depends on the company's circumstances and the secretary's role.

Can I change my company secretary later?

Yes. Companies can notify Companies House when a secretary's appointment ends or when their registered details change. The company must keep Companies House informed of relevant changes within the applicable deadlines.

Is a company secretary responsible for filing company accounts?

The secretary may be responsible for coordinating or preparing filings as part of their role, but appointing a secretary does not automatically transfer the directors' legal responsibilities. Directors should ensure the company meets its statutory obligations.

Conclusion

Appointing a company secretary is relatively simple for most UK private companies, but the value of the role depends on how the business is structured and how much corporate administration it needs. A private limited company generally does not have to appoint a secretary unless its articles require one. Nevertheless, a secretary can be useful when a company has multiple directors, shareholders, investors or international owners who need reliable corporate administration.

The practical process is clear: choose an appropriate secretary, authorise the appointment correctly, file AP03 for an individual or AP04 for a corporate secretary, and notify Companies House within 14 days. For a small company, the role may be relatively light. For a growing business, it can become an important part of good corporate governance.

The best appointment is therefore not necessarily the person with the most impressive job title. It is the person or professional provider, with the organisation, knowledge and reliability to keep the company's corporate administration accurate, timely and properly documented.