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Director Conflicts of Interest UK: Duties & Rules

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Part ofCorporate Legal Documents UK

Updated June 2026 · England & Wales
Sitting on the board of a UK company means wearing a fiduciary hat at all times, and that hat comes with a strict duty to put the company's interests ahead of your own. One of the trickiest areas in practice is the conflict of interest, which can surface in all sorts of situations, from a family member supplying the business to a director being offered a seat on a competitor's board. Getting this wrong can expose a director personally and damage the company's standing with shareholders, lenders and HMRC. This page walks through how conflicts arise under English company law, what the Companies Act 2006 expects directors to do, and the kinds of internal processes well-run companies use to handle them properly.

Overview

A conflict of interest, in a company law sense, is any situation where a director's personal interests, or the interests of someone connected to them, could influence or appear to influence the way they carry out their role. It is not limited to money changing hands.

A conflict can be direct, such as a director owning shares in a company that is bidding for a contract, or indirect, such as a spouse, civil partner, child or business partner standing to benefit from a decision the board is making. The Companies Act 2006 codified the common law fiduciary duties and set out specific requirements at sections 175, 177 and 182, covering situational conflicts, interests in proposed transactions, and interests in existing transactions.

Directors of private companies can usually have conflicts authorised by the other, unconflicted directors, provided the company's articles do not block that route. Getting the paperwork right, including board minutes and a written register of interests, is how boards demonstrate that duties have been discharged properly.

Key steps

  1. Spot the conflict early. The duty to avoid conflicts bites the moment a director becomes aware of a situation that could reasonably be seen as competing with the company's interests. Review your outside directorships, shareholdings, family business links and professional relationships regularly, and flag anything that overlaps with the company's activities before it becomes a problem. 2. Declare the nature and extent of the interest. Under sections 177 and 182 of the Companies Act 2006, a director must declare any direct or indirect interest in a proposed or existing transaction with the company. The declaration should be made to the other directors before the transaction is entered into where possible, and must cover the full scope of the interest rather than a vague reference to it. 3. Record the declaration properly. Good practice is to minute the declaration at a board meeting and log it in the company's register of directors' interests. The minutes should show what was declared, by whom, at what stage, and what the board decided. Written declarations circulated to all directors are also valid and should be kept on file with the statutory records. 4. Seek authorisation where required. For situational conflicts under section 175, such as a competing directorship or corporate opportunity, the non-conflicted directors can usually authorise the conflict if the articles allow it. The conflicted director should not count in the quorum or vote on their own authorisation. Any conditions attached, such as exclusion from certain board discussions, should be recorded clearly. 5. Manage the conflict going forward. Authorisation is not a one-off tick-box. The board should keep the position under review, particularly if the conflicted director's role or the company's activities change. Update the register of interests, refresh declarations annually, and make sure the conflicted director is excluded from relevant decisions and information flows where appropriate.

Common questions

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Common questions

Q What counts as a conflict of interest for a company director?
A conflict arises whenever a director's personal, family or business interests could reasonably influence, or appear to influence, how they act for the company. Common examples include holding shares in a supplier, taking a role at a competitor, receiving benefits from third parties linked to the directorship, or family members benefiting from a company contract. The test is about the potential for conflict, not just actual misconduct.
Q Do I have to disclose interests of my spouse or family?
Yes. The Companies Act 2006 treats interests of connected persons, including spouses, civil partners, children and certain companies you control, as if they were your own for disclosure purposes. If your partner owns a stake in a business the company is about to contract with, you need to declare that to the board in the same way you would declare a personal interest, even if you gain nothing directly.
Q Can the other directors authorise a conflict?
For private companies, the unconflicted directors can generally authorise a situational conflict under section 175, provided the articles of association do not restrict this. The conflicted director cannot vote on their own authorisation or be counted in the quorum for that decision. Public companies usually need shareholder approval or specific authority in the articles. Always check your articles before relying on board authorisation.
Q What happens if a director fails to declare a conflict?
The consequences can be serious. The transaction may be voidable by the company, the director can be required to account for any profits made, and failing to declare an interest in an existing transaction under section 182 is a criminal offence punishable by a fine. Undisclosed conflicts also damage trust with co-directors and shareholders and can feature in later disqualification proceedings.
Q Does a sole director of a company still need to worry about this?
The section 177 duty to declare interests in proposed transactions does not apply where there is only one director, because there is no one to declare to. However, the wider fiduciary duties still apply, and if the company later adds a director or is scrutinised in an insolvency, historic transactions can be reopened. Sole directors should still document decisions carefully and note any personal interests in the board minutes.
Q How often should the register of directors' interests be updated?
There is no fixed statutory interval, but good practice is to review it whenever a new director joins, when an existing director takes on outside roles, and at least annually as part of board housekeeping. Each declaration should be added promptly rather than batched. A current, accurate register makes it much easier to show a court or regulator that duties have been properly managed.
Q Are non-executive directors held to the same standard?
Yes. The Companies Act 2006 applies the same general duties to every director, whether executive, non-executive, de facto or shadow. Non-executives often bring more outside interests because of their portfolio roles, which makes disciplined disclosure even more important. The standard of care expected takes into account the director's actual knowledge and experience, so specialist non-execs may be held to a higher bar in their area of expertise.
If you're dealing with this kind of situation, a call with an experienced legal adviser can help you work out the right next step — from £89.

Sources

This guide is based on primary UK law and official guidance.

Brad Askew, Solicitor (non-practising)

Written & reviewed by

Brad Askew Solicitor (non-practising)

Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.

Legal disclaimer
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.