Corporate governance for SMEs is the framework of statutory director duties, company documents, and internal records that determines how a company is directed and controlled. It applies to every private limited company in England and Wales, from a two-director start-up to a business with 50 staff preparing for investment. Section 172 of the Companies Act 2006 requires a director to act in good faith to promote the company’s success for the benefit of its members, a duty that applies regardless of company size. Good governance is the documentation and discipline that lets a small board make defensible decisions and survive a dispute with a shareholder or regulator intact. While the principles of corporate governance apply universally, the specific frameworks and practices may vary depending on the size and complexity of the company.

Summary

• Directors of every UK company, regardless of size, owe statutory duties under the Companies Act 2006, including the duty under section 172 to promote the company’s success for the benefit of its members.
• A shareholders’ agreement and a properly drafted set of Articles of Association are the two documents that most reliably prevent SME ownership disputes from reaching court.
• Companies House filing obligations changed from 18th November 2025, when companies stopped having to maintain their own registers of directors, PSCs, and secretaries in favour of relying on the Companies House record.
• Board minutes and clear documentation of director and shareholder decisions provide the evidentiary record that courts look for when unfair prejudice or breach of duty is alleged.
• Governance failures rarely surface until a funding round, board change, or dispute forces the point, which is why annual review is standard advice for growing SMEs.

Introduction

A director signs a lease, a shareholder disputes a dividend decision, and six months later nobody can find the minute that recorded why the board approved either one. That gap between a decision being discussed and a decision being provable is where most destructive, costly, and stressful SME governance disputes start.

Corporate governance for SMEs in England and Wales means having Articles of Association, a shareholders’ agreement, and board records in place before disputes arise, not after. This article, as part of our corporate governance series, explains what governance involves for a smaller company, why the paperwork matters more than owners expect, and where the legal risk sits if it is ignored.

What is corporate governance for an SME?

Corporate governance for SMEs is the framework of statutory duties, company documents, and internal records that governs how directors and shareholders make and document decisions. It covers director duties, company constitution documents, and Companies House filing obligations, and it applies to every company incorporated in England and Wales.

For a small or medium-sized company, governance means four elements working together: directors who understand their statutory duties, Articles of Association and a shareholders’ agreement that reflect how the company actually operates, accurate statutory records held at Companies House, and a habit of recording board and shareholder decisions in writing. A sole-director microbusiness needs a lighter version of this than a 40-person company preparing for a funding round, but the same four elements apply to both.

What legal duties do SME directors owe?

Every director of a UK company owes seven statutory duties set out in the Companies Act 2006, and these apply identically whether the company has two shareholders or two hundred. The central duty, under section 172, requires a director to act in good faith to promote the company’s success for the benefit of its members as a whole.

Section 172 of the Companies Act 2006 states that a director “must act in the way he considers, in good faith, would be most likely to promote the success of the company for the benefit of its members as a whole”, while having regard to factors including the long-term consequences of decisions, employee interests, and the company’s business relationships.

The other six duties cover:

• acting within the company’s constitution
• exercising independent judgment
• exercising reasonable care and skill
• avoiding conflicts of interest
• not accepting benefits from third parties, and
• declaring any interest in a proposed transaction.

For an SME with two or three director-shareholders, these duties often feel informal in practice, but they are legally binding. This is exactly why disputes escalate quickly when a decision is later challenged and there is no documentation showing the duty was considered.

Why does a shareholders’ agreement matter?

A shareholders’ agreement is a private contract that sets out how shareholders will exercise control, resolve disagreement, and handle an exit, filling gaps the Companies Act 2006 and the Articles of Association leave open. It does not need to be filed at Companies House and its terms remain confidential to the parties.

Without one, the default rules governing the relationship between shareholders come from the Companies Act 2006 and the Articles of Association, which rarely reflect what the founders actually agreed informally when the company started. A well-drafted agreement typically covers pre-emption rights on share transfers, reserved matters requiring shareholder consent above a defined threshold, drag-along and tag-along rights on a sale, and a deadlock mechanism for a 50/50 company. Under section 994 of the Companies Act 2006, a minority shareholder can petition the court where the company’s affairs are conducted in a manner unfairly prejudicial to their interests. The Supreme Court confirmed in THG Plc v Zedra Trust Company (Jersey) Ltd [2026] UKSC 6, by a majority of four to one, that a section 994 petition falls within neither section 8 nor section 9 of the Limitation Act 1980, so no statutory limitation period applies to such a petition, though the equitable doctrine of laches can still bar relief where a petitioner has delayed unreasonably. A shareholders’ agreement cannot exclude that statutory right, but it can narrow the practical scope of a dispute by setting out agreed rules in advance.

Governance documents at a glance

What must an SME file and keep on record?

An SME must both file specified information at Companies House and hold certain registers internally, and the split between the two changed from 18th November 2025. Every company still must maintain a register of members at its registered office or a single alternative inspection location, even though several officer registers are no longer separately required.

Before the reform, companies had to hold and keep updated their own registers of directors, directors’ residential addresses, secretaries, and people with significant control, in addition to filing that information at Companies House. From 18th November 2025, the requirement to hold those particular registers as separate internal documents was removed, and the Companies House record became the verified source for that information instead, according to the government’s own guidance on changes to company registers. The register of members remains a mandatory internal document that must be held at the registered office or SAIL address and made available for public inspection on request. Many advisers still recommend keeping the officer registers internally as good governance practice even though the strict legal requirement to do so has gone.

How should an SME document board decisions?

An SME should record every material board and shareholder decision in a written minute at the time it is made, noting who was present, what was discussed, and the reasoning behind the outcome. This record is what a court looks for first when a decision is later challenged as made in breach of duty or bad faith.

The Duomatic principle, from Re Duomatic Ltd [1969] 2 Ch 365, is a company law principle confirming that shareholders can validate a company decision informally and unanimously without a formal meeting, provided every shareholder entitled to vote gives clear and informed consent. As the court held in that case, where all shareholders with a right to vote assent to a matter that a general meeting could carry into effect, “that assent is as binding as a resolution in general meeting would be”. Relying on that principle without a written record of the unanimous consent is a common and avoidable SME governance gap, and in JMW Solicitors LLP v Injury Lawyers 4U Ltd [2024] EWHC 3103 (Ch), the High Court held that an allegation of bad faith against a director or shareholder must be supported by clear evidence of dishonesty or uncommercial conduct, not assertion alone. Where minutes and correspondence show that a decision was considered on its commercial merits at the time, that record becomes the strongest available defence years later.

How does poor corporate governance for SMEs create legal risk?

Poor governance concentrates risk across every other part of an SME’s operations, because contracts, funding rounds, and disputes all eventually test whether the company’s decision-making can be evidenced. The risk rarely surfaces until a specific event forces it, such as an investment round, a board disagreement, or a departing shareholder.

A legal health check typically reviews Articles of Association, shareholder agreements, Companies House filings, board minutes, and statutory registers as a single governance block, alongside contracts, employment practices, and data protection compliance. In my experience, weak governance in that review most often shows up as out-of-date Articles that no longer match how the business runs, missing board minutes for significant decisions, and no shareholders’ agreement despite multiple owners.

Investors often treat such deficiencies as red flags during due diligence, as they suggest potential risks in decision-making, compliance, and operational integrity. For instance, the absence of proper documentation and oversight mechanisms has been identified as a significant issue in cases such as Pottage v Financial Services Authority [2012] All ER (D) 26 (Sep) and Palmer v Financial Conduct Authority [2017] All ER (D) 57 (Aug) where governance failures led to inadequate risk management and compliance oversight .

Frequently asked questions

Do small companies need a shareholders’ agreement?

Yes, any company with more than one shareholder benefits from a shareholders’ agreement, because without one the rules governing ownership default entirely to the Companies Act 2006 and the Articles of Association. These defaults rarely match what the founders actually intended and are far harder to renegotiate once a disagreement has already started.

What are a director’s main legal duties in England and Wales?

A director’s main duties under the Companies Act 2006 include acting within the company’s constitution, promoting the company’s success under section 172, exercising independent judgment, exercising reasonable care and skill, avoiding conflicts of interest, and declaring any personal interest in a transaction. All seven duties apply equally to directors of small private companies and large public ones.

Does a shareholders’ agreement need to be filed at Companies House?

No, a shareholders’ agreement is a private contract between the shareholders and does not need to be filed at Companies House, unlike the Articles of Association. Its terms, including valuations and exit arrangements, remain confidential to the parties who sign it.

What changed for company registers in November 2025?

From 18th November 2025, companies stopped being legally required to hold their own separate registers of directors, directors’ residential addresses, secretaries, and people with significant control. The Companies House record became the verified source for that information instead, though companies must still maintain their own register of members.

How often should an SME review its governance framework?

An SME should review its governance framework at least annually, with some fast-moving or regulated businesses benefiting from a lighter quarterly check alongside the full annual review. A review before a funding round, board change, or acquisition is also standard practice regardless of when the last scheduled review took place.

Getting legal advice

If your company’s Articles, shareholder agreement, or board records need review before a dispute, investment round, or Companies House filing deadline, 43Legal’s commercial solicitors can help you build a compliant corporate governance framework that reflects how your business actually runs. Get in touch through 43Legal’s contact page to arrange a consultation.

Last reviewed: July 2026

The content of this article is for general information only.  It is not, and should not be taken as, legal advice.  If you require any further information in relation to this article, please contact 43Legal.

Melissa Danks is the founder of 43Legal. She has over 20 years’ experience as a solicitor working within the legal sector dealing with issues relating to risk management, dispute resolution, and advising in-house counsel in SMEs and large companies. Melissa has extensive expertise in providing practical, valuable, modern legal advice on large commercial projects, joint ventures, data protection and GDPR compliance, franchises, and commercial contracts. She has worked with stakeholders in multiple market sectors, including IT, legal, manufacturing, retail, hospitality, logistics and construction. When not providing legal advice and growing her law firm, Melissa spends her time running, walking in the countryside, reading and enjoying downtime with close friends and family.