This guide is maintained as a current resource for July 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
A detailed guide to authority to sign a company contract under English law, explaining actual and apparent authority, company rules, case law, risks, and how businesses ensure contracts are validly executed.

Authority to sign a company contract refers to the legal power of an individual to enter into binding agreements on behalf of a company. In England and Wales, a company is a separate legal entity, meaning it can only be bound by contracts signed by someone with the proper authority.
Disputes over authority commonly arise in commercial transactions, particularly where contracts are signed by employees, directors, consultants, or external agents. If authority is missing or unclear, a contract may be unenforceable against the company, or the individual may face personal liability.
Understanding authority is essential for businesses entering supply agreements, service contracts, commercial leases, and high-value transactions.
Legal Meaning of Authority in Company Contracts
Authority refers to the legal ability of a person to bind a company through their actions or signatures. It ensures that contracts are entered into validly and that the company is properly represented in legal dealings.
A company will only be bound by a contract if the person signing:
- Has actual authority, or
- Has apparent (ostensible) authority, or
- The company later ratifies the agreement
Without authority, the contract may not be enforceable against the company.
Types of Authority to Sign a Company Contract
1. Actual Authority
Actual authority is the most straightforward form of authority and arises where the company explicitly or implicitly authorises a person to act on its behalf.
Express Actual Authority
This is clearly granted, often through:
- Board resolutions
- Employment contracts
- Written delegations of power
Implied Actual Authority
This arises from the person's role or conduct, even if not explicitly stated.
For example:
- A finance director may have implied authority to sign supplier agreements
- A procurement manager may be authorised to enter routine supply contracts
2. Apparent (Ostensible) Authority
Apparent authority arises where a third party reasonably believes that the individual has authority to act for the company, based on the company's representations.
The company may be bound even if the individual lacked actual authority.
Key principles come from case law such as:
- Freeman & Lockyer v Buckhurst Park Properties (1964) – established that a company can be bound where it represents that an agent has authority and a third party relies on it
For apparent authority to exist:
- A representation must be made by the company
- The third party must rely on it
- The reliance must be reasonable
3. Authority by Ratification
Ratification occurs when a company approves a contract after it has been signed without authority.
Once ratified:
- The contract becomes fully binding on the company
- It is treated as if authority existed from the beginning
Ratification can be express or implied through conduct, such as accepting benefits under the contract.
Who Typically Has Authority to Sign Company Contracts?
In UK company law, authority is usually held by:
Directors
Directors often have broad authority to bind the company, especially in day-to-day commercial matters.
However, their powers may be limited by:
- The company's articles of association
- Board decisions
- Shareholder approvals required for major transactions
Company Secretary (if appointed)
May have limited authority, depending on internal delegation.
Employees and Managers
May have implied authority for routine contracts within their role.
External Agents
May bind the company if properly authorised or if apparent authority applies.
Restrictions on Signing Authority
Even where a person appears senior, their authority may be restricted by internal governance rules.
Common restrictions include:
- Financial thresholds requiring board approval
- Reserved matters requiring shareholder consent
- Limits in delegated authority policies
If these restrictions are breached internally, the contract may still bind the company externally if apparent authority applies, but the individual may face internal disciplinary or financial consequences.
The Indoor Management Rule
A key principle protecting third parties is the “indoor management rule”, established in:
- Royal British Bank v Turquand (1856)
This rule allows external parties to assume that a company's internal procedures have been properly followed when entering a contract.
It protects commercial certainty by preventing companies from avoiding contracts due to internal procedural failures that were not visible to outsiders.
Company Contracts and the Companies Act 2006
Under the Companies Act 2006:
- A company has legal personality and can enter contracts in its own name
- A document may be executed by authorised signatories
- Formal execution requirements apply to deeds and certain legal documents
For valid execution, companies may use:
- Two authorised signatories, or
- A director in the presence of a witness, depending on structure
Failure to follow execution formalities may affect enforceability, particularly for deeds.
Risks When Authority Is Missing or Unclear
1. Non-Binding Contracts
If no authority exists and no ratification occurs, the company may not be bound.
2. Personal Liability
The individual who signed may be personally liable for breach of warranty of authority.
3. Commercial Disputes
Disputes often arise over payment obligations, supply failures, or termination rights.
4. Litigation Risk
Claims may be brought in the High Court or County Court to determine enforceability and damages.
Due Diligence in Commercial Transactions
Businesses commonly reduce risk by verifying authority before signing contracts. Practical steps include:
- Requesting board resolutions or written authority
- Checking Companies House records for directors and officers
- Confirming signing powers in contracts or governance documents
- Using authorised signatory lists
- Including warranty clauses confirming authority
These checks are particularly important in high-value commercial contracts, mergers, and long-term supply agreements.
Electronic Signatures and Authority
Electronic signatures are generally valid in UK commercial contracts, provided there is clear intention to sign and authority exists.
However, issues may arise where:
- The wrong individual signs electronically
- Automated systems are used without proper controls
- Email approvals are mistaken for formal authority
Courts focus on substance over form when assessing validity.
Time Limits for Claims Involving Authority Disputes
If a dispute arises regarding authority to sign a contract, limitation periods generally include:
- 6 years for breach of contract claims
- 12 years for deeds
Time limits may vary where fraud or concealment is alleged.
Common Questions from our Readers
Can a company avoid a contract signed without authority?
Sometimes, but only if there is no apparent authority and no ratification.
What is apparent authority in simple terms?
It is when a company allows someone to appear authorised, leading third parties to reasonably rely on that appearance.
Are directors always authorised to sign contracts?
Not always. Their authority may be limited by internal rules or company governance structures.
Can a contract be valid if signed by an employee?
Yes, if the employee had actual or apparent authority for that type of contract.
Key Takeaways
Authority to sign a company contract determines whether a business is legally bound by agreements made on its behalf. In England and Wales, authority may be actual, apparent, or granted through ratification.
Directors, employees, and agents may all bind a company depending on their role and the company's representations. However, internal restrictions do not always protect the company from external liability if apparent authority exists.
Proper verification of signing authority is essential in commercial transactions to avoid disputes, financial exposure, and litigation risk.