A UK director's legal responsibilities: the complete checklist

Understanding Your Role as a Director

Being a director of a UK limited company means more than just running the business day-to-day; it involves specific legal duties outlined primarily in the Companies Act 2006. These duties are in place to ensure good governance, accountability, and the long-term success of the company for the benefit of its members (shareholders) as a whole.

Your responsibilities apply regardless of the company's size, from a small owner-managed business to a larger enterprise. Understanding these duties is crucial to avoid potential penalties, personal liability, or even disqualification.

Key Legal Responsibilities

Your duties as a director can be broadly categorised into general duties under the Companies Act 2006 and specific administrative and filing obligations with Companies House and HMRC.

General Duties (Companies Act 2006)

The Companies Act 2006 sets out seven general duties for all directors:

1. Act within powers: You must act in accordance with the company's constitution (Articles of Association) and only use your powers for the purposes for which they were given.
2. Promote the success of the company: You must act in good faith to promote the success of the company for the benefit of its members as a whole, considering long-term consequences, employees, suppliers, the community, and the environment.
3. Exercise independent judgment: You must make your own decisions and not simply follow the instructions of others.
4. Exercise reasonable care, skill, and diligence: This means acting with the general knowledge, skill, and experience that could reasonably be expected of a person carrying out your role, as well as any specific knowledge, skill, or experience you personally have.
5. Avoid conflicts of interest: You must avoid situations where your personal interests, or duties to another party, conflict with the company's interests. This includes not exploiting any property, information, or opportunity belonging to the company.
6. Not accept benefits from third parties: You must not accept gifts or other benefits from third parties if they are offered because you are a director and could reasonably be seen to influence your actions.
7. Declare interest in proposed transactions or arrangements: If you have a direct or indirect interest in a proposed transaction or arrangement with the company, you must declare the nature and extent of that interest to the other directors.

Filing Annual Accounts and Confirmation Statement

Every limited company must file certain documents with Companies House annually:

• Annual Accounts: These provide a financial overview of your company. Private companies typically have 9 months from their accounting reference date to file their accounts. For example, if your year-end is 31 March 2026, the filing deadline is 31 December 2026.
• Confirmation Statement (CS01): This document confirms that the information Companies House holds about your company is accurate and up-to-date. It includes details on the registered office address, directors, company secretaries, shareholders, share capital, and People with Significant Control (PSCs). You must file a confirmation statement at least once every 12 months, within 14 days after the end of your company's review period. The fee for online filing is £50 (figures for illustration — check current rates).

Maintaining Company Records

You are responsible for maintaining certain statutory registers and records, which must be kept at your company's registered office or a Single Alternative Inspection Location (SAIL).

From 18 November 2025, while you must still register information about directors, their residential addresses, secretaries, and PSCs with Companies House and keep it updated, companies are no longer required to maintain their own 'local' statutory registers for these specific items.

However, you must continue to maintain a Register of Members (shareholders) at your company's registered office or SAIL address, and it must be available for public inspection. Other important company documents, such as board minutes, shareholder resolutions, and the company's Articles of Association, should also be retained.

Reporting Changes to Companies House

You must notify Companies House promptly of any changes to your company's details. This includes:

• Registered Office Address: Use form AD01 to change your registered office address. This can be done online and is usually processed within 24 hours. The new address must be in the same UK jurisdiction (England/Wales, Scotland, or Northern Ireland).
• Director Appointments/Resignations: To appoint a new director, you must file form AP01 (for an individual) with Companies House within 14 days of the appointment. The new director must be at least 16 years old and not disqualified.
• SIC (Standard Industrial Classification) Code: If your business activities change, you can update your SIC code by filing a Confirmation Statement (CS01). You can add up to four SIC codes.
• Registered Email Address: Companies now need to provide Companies House with a registered email address for official communications, which is not publicly displayed.

Common mistakes

• Missing Filing Deadlines: Failing to file annual accounts or confirmation statements on time can lead to financial penalties and your company being struck off the register.
• Out-of-date Information: Not updating Companies House records promptly when details like addresses or directors change can lead to inaccuracies on the public register and potential issues with official correspondence.
• Ignoring Director Duties: Overlooking the general duties under the Companies Act 2006, particularly regarding conflicts of interest or acting outside powers, can result in personal liability for directors.
• Incorrect SIC Codes: Having an inaccurate SIC code can misrepresent your business, potentially affecting grants, loans, or investor perceptions.