Directors’ Fiduciary Duties in the UK

If you’re running a limited company in the UK, your directors carry serious legal responsibilities - including fiduciary duties. These aren’t just “nice to have” principles. They’re enforceable obligations that affect how decisions are made, how conflicts are handled and, ultimately, how protected your business is.

In this guide, we break down the fiduciary duties of directors in plain English, why they matter for small companies, and the practical steps you can take to stay compliant and confident from day one.

What Are Directors’ Fiduciary Duties?

Fiduciary duties are the duties a director owes to the company to act honestly, loyally and in the company’s best interests. In the UK, most core directors’ duties are set out in the Companies Act 2006. The key idea is that directors are entrusted with managing the company and must use their powers properly, avoid personal conflicts and make decisions to promote the success of the company.

Even in a small or family-run business, these duties apply. It doesn’t matter if you and your co-founder are best friends - directors still need to follow the same legal standards that apply to large PLCs.

The Core Fiduciary Duties Under UK Law

Here are the main duties you need to know, translated into practical terms for small businesses. While lawyers often group “fiduciary” and “statutory” duties together, the following list captures the core obligations you’ll deal with day-to-day.

1) Act Within Powers (s171)

Directors must act in line with the company’s constitution (typically your articles of association) and only use their powers for a proper purpose. In practice, that means following any decision-making rules in the articles, respecting share rights and not doing something outside your authority (for example, issuing shares simply to dilute someone’s votes).

If directors ignore the articles, they risk personal liability and having decisions set aside. Persistent breaches can also amount to a breach of articles of association, which can trigger disputes and remedies against the directors personally.

2) Promote the Success of the Company (s172)

This is the big one. Directors must act in good faith to promote the company’s success for the benefit of its members as a whole. The law asks directors to consider factors like the long-term impact of decisions, employee interests, relationships with suppliers and customers, the community and environment, and maintaining a reputation for high standards.

Important note: if your company is insolvent or is near insolvency, this duty shifts - directors need to consider creditors’ interests ahead of shareholders’. That’s a critical moment to get advice quickly, as missteps here can lead to personal risk.

3) Exercise Independent Judgment (s173)

Directors must make up their own minds and not just rubber-stamp someone else’s wishes. It’s fine to take professional advice or listen to a majority shareholder, but the final call must be yours. This is one reason regular, well-run board meetings (with proper minutes) are so valuable.

4) Exercise Reasonable Care, Skill and Diligence (s174)

Directors must act with the care, skill and diligence of a reasonably diligent person with the general knowledge, skill and experience you would expect of a director, plus any extra expertise they actually have. If you’re the finance director with accountancy training, the bar is higher when it comes to financial oversight.

5) Avoid Conflicts of Interest (s175)

Directors should avoid situations where their personal interests or duties to someone else conflict with the interests of the company. Common examples include:

• Taking a business opportunity for yourself that the company could reasonably pursue
• Serving on the board of a competitor
• Having a financial interest in a supplier without disclosure and authorisation

Many conflicts can be managed with advance disclosure and proper board approval, provided your articles allow it and the conflict is handled transparently. A clear Conflict of Interest Policy helps you set out the process.

6) Not Accept Benefits From Third Parties (s176)

Directors shouldn’t accept benefits (including gifts or perks) due to their position as a director if it could create a conflict. A hospitality policy and a gift register can help you handle this sensibly in a small company setting.

7) Declare Interests in Proposed Transactions (s177)

If a director is interested in a proposed transaction or arrangement with the company (say, you own a logistics firm and want to provide services to your company), the interest must be declared to the other directors before the company decides whether to proceed. This is separate from the general conflict duty - it’s about transparency for specific deals.

Why Fiduciary Duties Matter For Small Companies

For SMEs, these duties are not just a compliance box-tick - they support healthy decision-making and protect your business in disputes, funding rounds and exits. Here’s how they help you in practice:

• They set clear decision-making rules, which can prevent founder fallouts and deadlock.
• They make your business more attractive to investors, lenders and buyers by showing strong governance.
• They reduce the risk of personal liability for directors, particularly in high-stakes periods (e.g. a cashflow squeeze or rapid expansion).
• They help you manage related-party deals properly, so value stays in the company and you avoid allegations of unfairness.

Think of fiduciary duties as the “guard rails” that let your business grow with confidence.

Common Risk Scenarios (And How To Stay Onside)

Most fiduciary issues in small companies crop up in a few predictable scenarios. If you handle these well, you’ll avoid most headaches.

Related-Party Deals

Scenario: A director’s family member owns a supplier and your company wants to contract with them.

Risk: Conflict of interest and failure to declare an interest.

How to handle it:

• Disclose the interest early and in writing.
• Have non-conflicted directors decide (the interested director steps out).
• Ensure terms are at arm’s length and properly documented.
• Record the decision in board minutes.

Business Opportunities “On the Side”

Scenario: A director becomes aware of a new product opportunity while acting as a director of the company and wants to exploit it personally.

Risk: Appropriation of corporate opportunity and breach of the duty to avoid conflicts.

How to handle it:

• Raise the opportunity with the board first; if the company declines, ensure that is documented.
• Check whether the articles and any Shareholders Agreement restrict pursuing similar opportunities.
• Get formal approval before proceeding personally.

Signing Contracts Without Authority

Scenario: A director or senior employee signs a major contract without the correct approvals in place.

Risk: Acting outside powers and unclear authority to bind the company.

How to handle it:

• Set clear internal signing thresholds and delegation of authority.
• Document board approvals for significant contracts and ensure proper execution (including deeds, if required).
• Train staff on an employee’s capacity to bind a company and when to escalate decisions.

Near Insolvency Decisions

Scenario: Cashflow is tight; the company considers taking deposits or paying some creditors while deferring others.

Risk: When insolvency looms, the duty to promote success shifts towards protecting creditors - decisions are heavily scrutinised.

How to handle it:

• Monitor financial information closely; ensure accurate, up-to-date cashflow forecasts.
• Seek advice promptly if there’s a real risk of insolvency.
• Document the rationale for decisions, including how creditors’ interests were considered.

Practical Governance Steps That Make Compliance Easier

Good governance doesn’t need to be complicated or expensive. A few practical habits can make fiduciary compliance a lot easier and reduce personal risk.

Run Proper Board Meetings

Schedule regular board meetings, circulate papers in advance and ensure decisions are properly minuted. Minutes are your evidence that directors considered the right factors and acted in good faith. If you need a refresher on process, see guidance on running directors’ meetings.

Use Clear Decision Frameworks

For important decisions (e.g. funding, acquisitions, related-party transactions), note the relevant s172 factors you considered: long-term impact, employees, suppliers, reputation and so on. This doesn’t have to be lengthy - a simple checklist in the board pack can work wonders.

Know When You Need Shareholder Approval

Some decisions need shareholder approval, sometimes by a higher voting threshold. Build the habit of checking whether a proposed action requires an ordinary resolution or a special resolution, or whether your articles require extra steps. Recording approvals correctly reduces the risk of challenges later.

Keep Conflicts Out In The Open

Maintain a standing conflicts register and update it whenever a director’s interests change. Adopt a simple process (declare, assess, manage, minute). A practical Conflict of Interest Policy sets expectations and helps you address issues consistently across the board.

Make Authority (And Limits) Crystal Clear

Document who can sign what and where board approval is needed. For key roles like the MD or CFO, a well-drafted Directors Service Agreement can set out responsibilities, authority limits and confidentiality obligations to support compliance with fiduciary duties.

Contracts And Policies That Support Fiduciary Compliance

A strong set of internal documents gives directors confidence to make decisions quickly without cutting corners on compliance.

• Articles of Association: Make sure your articles are up to date and reflect how you actually want to run the company. The articles are the rulebook for acting within powers.
• Shareholders Agreement: For multi-founder companies, a Shareholders Agreement sets decision-making rules, reserved matters, information rights and dispute pathways. It reduces the chance that directors will be pushed into decisions that risk breaching their duties.
• Board Protocols: A short governance protocol (meeting frequency, agenda structure, paper circulation and minute templates) pairs nicely with guidance on running directors’ meetings.
• Conflict of Interest Policy: A formal process for declaring and managing conflicts (registers, approvals, recusals) using your Conflict of Interest Policy.
• Directors Service Agreement: The Directors Service Agreement can set performance standards, authority limits and post-termination restrictions - all of which help directors meet their duties.

Tip: Don’t DIY these critical documents. Tailored drafting ensures they align with your business model and the Companies Act, and it avoids inconsistencies that can cause problems down the track.

What Happens If Directors Breach Their Fiduciary Duties?

Breaches can have serious consequences for both the company and individual directors. Common remedies and outcomes include:

• Injunctions: To stop threatened breaches (for example, stopping a director from taking a corporate opportunity).
• Damages or Account of Profits: The director may need to compensate the company or hand over profits made from the breach.
• Setting Aside Transactions: Deals entered into in breach of duty can sometimes be rescinded.
• Disqualification: In serious cases, directors can be disqualified from acting as a director for a period.
• Reputational Damage: Perhaps the most immediate impact for small businesses - trust with investors, customers and staff can be hard to rebuild.

If a breach has occurred, take action quickly: pause the problematic activity if possible, hold a board meeting to assess options, seek legal advice, and consider shareholder ratification where appropriate. Also check whether any decision failed to follow the articles; persistent non-compliance can raise separate issues linked to a breach of articles of association.

FAQs For Small Business Owners

Do These Duties Apply To Non-Executive Directors In Small Companies?

Yes. All directors owe the statutory duties, whether executive, non-executive, full-time or part-time. The duty of care, skill and diligence is assessed partly by the role you hold - so expectations can be higher for those with specialist expertise.

Can Shareholders Tell Directors What To Do?

Shareholders can influence some decisions and pass resolutions, but directors must still exercise independent judgment and act within powers. When shareholder approval is needed, make sure you use the correct process and thresholds - in some cases, a special resolution may be required. Clear governance in your Shareholders Agreement helps keep everyone aligned.

What About Dual Roles - Director And Employee?

It’s common in SMEs for founders to be both directors and employees. That’s fine - but it’s important to separate hats. Your Directors Service Agreement should outline your employment responsibilities and authority limits, while board protocols govern director decisions. When in doubt, disclose potential conflicts and document approvals.

How Do We Prove We Considered s172 Factors?

Good minutes are your best friend. Note the key factors discussed (long-term impact, employee interests, supplier relationships, reputation, environmental impact where relevant) and the reasons for the final decision. Routine use of board packs and a simple decision checklist makes this easy in practice.

Who Can Bind The Company To A Contract?

Authority depends on your articles, board approvals and any delegated authority policy. Make it clear who can sign what, and train your leadership on an employee’s capacity to bind a company. For larger or unusual contracts, get a board sign-off and ensure the agreement is correctly executed.

Key Takeaways

• Directors’ fiduciary duties require acting within powers, promoting the success of the company, using independent judgment, applying reasonable care and skill, avoiding conflicts, refusing improper benefits and declaring interests in transactions.
• These duties apply to all directors in UK companies, including small businesses and non-executives - and they shift towards creditor interests if insolvency looms.
• Most risks arise in predictable scenarios: related-party deals, corporate opportunities pursued personally, signing without authority and near-insolvency decisions. Handle these with early disclosure, proper approvals and strong minute-taking.
• Make governance easy: run regular board meetings, minute decisions thoroughly, clarify signature authority and use structured approvals (including shareholder approvals where required).
• Get the right legal documents in place, such as a tailored Shareholders Agreement, a clear Conflict of Interest Policy and a robust Directors Service Agreement.
• Breaches can lead to injunctions, damages, setting aside transactions, disqualification and reputational damage. Act quickly if problems arise and seek tailored advice.

If you’d like help setting up practical governance, drafting key documents or getting advice on a tricky director decision, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.