What is a Person with Significant Control? A Definitive Guide to the PSC Regime

The term what is a person with significant control is a cornerstone of modern corporate transparency in the United Kingdom. It signals who really holds power within a company, beyond the public face of directors and officers. This guide unpacks the concept in detail, explains how the regime works in practice, and offers practical steps for organisations to identify, disclose, and manage persons with significant control.

What is a Person with Significant Control? The Essentials

What is a person with significant control if you strip the jargon and look at the core idea? It is an individual who, directly or indirectly, has substantial influence or control over a company. In plain terms, the PSC is the person who effectively decides how the company is run, who benefits from its profits, or who can determine its leadership. The UK regime was designed to shine a light on such influence and to make it accountable to the public and to regulators.

In practice, a person with significant control may be someone who:

• directly or indirectly owns more than 25% of the company’s shares or has more than 25% of the voting rights;
• has the right to appoint or remove a majority of the board of directors;
• has the right to exercise, or actually exercises, significant influence or control over the company; or
• has the right to exercise significant influence or control through other means such as a trust, agreement, or another entity.

The phrase what is a person with significant control therefore covers both direct ownership and more complex arrangements. It recognises that power can be spread across shareholdings, voting arrangements, corporate structures, and contractual or discretionary terms. The aim is to capture the person or people who can shape the company’s direction, not merely those who hold formal titles.

The Legal Foundations: Where the concept comes from

The concept of a person with significant control comes from the UK’s PSC regime, introduced under the Small Business, Enterprise and Employment Act 2015 and implemented through subsequent legislation and Companies House rules. The regime requires most UK companies and limited liability partnerships to maintain a PSC register and to disclose certain information to Companies House. The purpose is to improve corporate transparency, tackle hidden ownership, and reduce the risk of illicit activities by ensuring that those who control companies are identifiable to the public and to enforcement agencies.

In explaining what is a person with significant control, it is useful to understand the two layers involved: the statutory definition of significant influence and the practical process of identifying PSCs within a company. The statutory framework focuses on thresholds and rights, while the practical process concerns how a business determines who meets those criteria and how to record and report it accurately.

Thresholds and definitions: How a PSC is identified

Thresholds that typically indicate significant control

The most commonly cited thresholds are clear and straightforward: ownership or voting rights of 25% or more. If you hold a quarter or more of the shares or the voting rights, you are in the PSC territory. However, the regime also covers other routes to control that may not rely on share ownership alone. A person can be a PSC if they have, for instance, the right to appoint or remove the majority of directors, or if they have significant influence or control through other arrangements. This could include contractual arrangements, trust arrangements, or the practical ability to influence the company’s decisions even without formal ownership levels.

Other ways to be a PSC

Significant influence or control can come from arrangements that give someone de facto authority. Examples include:

• rights contained in a shareholder agreement that enable decisive voting on key matters;
• the ability to direct the company’s activities through a form of power of attorney or management mandate;
• provisions in a trust or other arrangement where the beneficiary or the settlor controls the company in effect; or
• indirect control via a corporate chain where an upstream entity holds the relevant percentage and can influence outcomes.

In all cases, what matters is actual influence or control, not merely the potential for influence. The Companies House guidance emphasises examining the rights someone has and the practical ability they possess to use those rights to influence the company’s decisions.

How PSCs are identified in a company

Step-by-step process for a small business

For a company, identifying PSCs starts with mapping ownership and control rights. The steps typically include:

1. Compile a current list of shareholders and their shareholdings, including indirect holdings through other companies or trusts.
2. Review voting rights and any arrangements that give someone a seat at the decision-making table, even if they do not own a large stake.
3. Examine any contracts or agreements that grant significant influence, such as the right to appoint or remove directors or to determine budgetary decisions.
4. Identify any trusts or other entities through which control might be exercised.
5. Consolidate the information to determine who meets the criteria to be a PSC.

Once identified, the company must obtain information from each PSC, including their name, country of residence, usual address, date of birth, and, in some cases, the nature of their control. This information is then used to populate the PSC register and to file the appropriate details with Companies House.

The 25% threshold – what if there are multiple holders?

When control is split among several individuals or entities so that no single person holds more than 25%, a composite approach is needed. If two or more people together control more than 25% of shares or the voting rights, each of them can be considered a PSC if they meet the other criteria (for example, rights to appoint or remove directors or to exercise significant influence). The assessment should be done carefully, taking into account both direct and indirect holdings, including any arrangements that enable joint control.

The PSC Register and filing requirements

The role of Companies House

Once what is a person with significant control has been determined within a company, the next step is to declare those PSCs to Companies House. The PSC register is a public record that sits alongside the company’s statutory registers. The information held includes the PSCs’ identities and the nature of their control. The aim is to create a transparent picture of who holds real influence within the corporate structure.

Updating PSC information

PSC information is not static. A change in shareholdings, a change in directors, or an alteration in the rights attached to shares can create a new PSC or remove an existing one. Companies must:

• update the PSC register promptly when changes occur; and
• notify Companies House within the required timeframes, typically within 14 days of the change, to ensure the public record remains accurate.

The process involves submitting amended information, including details about the new or removed PSCs and, where applicable, the changes to the nature of control or rights that have shifted.

Implications for PSCs: rights, duties, and accountability

Legal duties of a PSC

For the individuals who qualify as what is a person with significant control, there are important responsibilities. PSCs are generally subject to the same legal framework that governs disclosure and accuracy of information. They should ensure that the information provided to the company and to Companies House is correct and up to date. Inaccurate or misleading information can lead to penalties or investigations by authorities, not to mention the reputational implications for the individuals involved and for the company itself.

Privacy, transparency and practical realities

The PSC regime prioritises transparency in the public record. However, it recognises that certain information may be sensitive, and processes are in place to balance transparency with privacy where appropriate. The public benefit is weighed against privacy considerations, and data handling for PSCs is governed by relevant data protection laws and guidance from regulatory bodies.

Case studies and scenarios: what is a person with significant control in action

Scenario A: A 30% shareholder with additional voting rights

Imagine a company where an individual owns 30% of the shares and possesses additional voting rights through a separate class of shares or a shareholder agreement. Even if another shareholder holds a larger nominal stake, this individual could still meet the criteria of a PSC because the combination of shareholding and voting influence exceeds the 25% threshold and directly influences board decisions.

Scenario B: Control via a trust

A trust holds 40% of the shares, but the settlor or the beneficiaries have the power to direct the company’s affairs, or a trustee is bound by instructions from a particular beneficiary or class of beneficiaries. In such a case, the trust can give rise to PSC status in the individuals who effectively control that trust, if they can exercise significant influence over the company’s activities.

Scenario C: Arrangements enabling de facto control

Consider a situation where a person has a verbal or written agreement with other shareholders that effectively dictates major decisions, even though the person does not meet the 25% share threshold. If the arrangements give the individual a predominant role in governance and strategy, they may still be classified as a PSC due to the ability to exercise significant influence or control.

Common myths and misunderstandings about PSCs

Do PSCs require privacy protection?

While the PSC regime emphasises transparency, some people assume PSC information is always highly private. In truth, PSC information is public, though there are protections around the handling of sensitive data in line with data protection laws. The public record exists to deter abuse of corporate structures and to identify those who shape company activities.

Are directors always PSCs?

No. Being a director does not automatically make someone a PSC. A director may have responsibilities and influence within the board, but unless their rights or powers meet the PSC criteria (such as substantial shareholding, appointment rights, or significant influence), they might not be listed as a PSC. Conversely, a non-director could be a PSC if the person holds or controls significant influence over the company.

Practical guidance for businesses: identifying and managing PSCs

For small organisations

Small businesses should start by compiling a straightforward PSC map. Create a simple matrix that lists stakeholders, their shareholdings, voting rights, and any special arrangements that could confer influence. Regularly review this map, especially after funding rounds, share re-structuring, or changes to director appointments. Clear documentation helps prevent errors and ensures compliance with filing deadlines.

For organisations with group structures

In groups with multiple subsidiaries, PSCs may exist at different levels within the corporate parent. A robust approach is to assess PSC status at each entity, not just the parent company. It is possible for a PSC in one subsidiary to exist independently of PSCs in other group entities, depending on how control is arranged across the structure.

The evolving landscape: reforms and future trends

The PSC regime has evolved since its inception, with updates to guidance and changes in filing processes. Regulators continually refine how to identify, verify, and publish PSC information to improve accuracy and reduce misuse. Organisations should stay informed about any amendments to thresholds, reporting timelines, or data-handling requirements, particularly as the UK tax, corporate, and regulatory environment adapts to changing business practices and international standards.

What is a person with significant control? Key takeaways

In essence, what is a person with significant control is someone who, through ownership, rights, or influence, can shape the path of a company. It is not solely about who holds the most shares, but about who can determine outcomes through a combination of voting rights, director appointments, and agreements. The PSC regime aims to make such influence visible to the public, promoting transparency and accountability in corporate life.

For businesses, the practical implications are clear: identify PSCs accurately, maintain an up-to-date PSC register, and file timely with Companies House. For individuals, understanding whether you are a PSC helps you manage your obligations, protect your interests, and ensure that your involvement in a company is characterised by proper governance and compliance.

Whether you are an owner, a director, a trustee, or an adviser, appreciating how the question what is a person with significant control applies in real business scenarios is crucial. It not only informs compliance steps but also underpins trust in corporate integrity and the effective stewardship of company resources.