How to Challenge Unfair Terms in Commercial Contracts

Unfair terms in commercial contracts can create significant financial and legal risk for businesses. These terms often appear in standard form agreements, supplier contracts, service terms, or negotiated contracts where one party has stronger bargaining power.

In England and Wales, commercial parties are generally free to agree whatever terms they choose. However, that freedom is limited by statutory controls, common law principles of fairness in interpretation, and rules governing exclusion and limitation clauses. Certain unfair or unreasonable terms may be unenforceable, restricted, or struck out entirely.

This article explains how to identify and challenge unfair contractual terms, the legal tests applied by courts, and the practical steps involved in disputing them.

What Counts as an Unfair Term in Commercial Contracts

There is no single definition of an “unfair” term in business-to-business contracts. Instead, unfairness is assessed through a combination of statutory rules and judicial interpretation.

Common examples include:

• Excessively one-sided limitation of liability clauses
• Exclusion of liability for negligence or fundamental breach
• Disproportionate penalty clauses
• Hidden or unclear obligations placed on one party
• Terms that significantly restrict legal remedies
• Clauses that were not properly brought to the other party's attention

In commercial contracts, courts are less likely to interfere than in consumer contracts, but protection still exists.

Key Legal Framework for Challenging Contract Terms

1. Unfair Contract Terms Act 1977 (UCTA)

UCTA is the primary statute governing unfair terms in business contracts. It regulates:

• Exclusion of liability for negligence
• Limitation of liability clauses
• Standard form contract terms

Under UCTA, many clauses are only enforceable if they satisfy the reasonableness test.

2. Reasonableness Test

A term must be fair and reasonable in the circumstances known at the time the contract was made.

Courts consider factors such as:

• Relative bargaining strength of the parties
• Whether the customer had alternatives
• Whether the term was transparent and prominent
• Whether the party knew or ought to have known of the term
• Availability of insurance
• Industry practice

If a term fails this test, it may be unenforceable.

3. Common Law Controls

Even outside statute, courts use common law principles to challenge unfair terms:

• Strict interpretation of exclusion clauses
• Contra proferentem rule (ambiguity interpreted against the party relying on the clause)
• Requirement for clear wording for major liability exclusions
• Control of penalties and liquidated damages

4. Penalty Clause Doctrine

A contractual term may be unenforceable if it imposes a penalty rather than a genuine pre-estimate of loss.

The leading modern test comes from Cavendish Square Holding BV v Makdessi, where the court considers whether the clause protects a legitimate commercial interest and whether it is proportionate.

Step-by-Step: How to Challenge an Unfair Term

Step 1: Identify the problematic clause

The first step is to review the contract and identify terms that may be unfair, including:

• Limitation of liability clauses
• Indemnity provisions
• Termination penalties
• Automatic renewal clauses
• Exclusion of key obligations

The wording of the clause is critical, as courts interpret contracts strictly.

Step 2: Check how the clause was incorporated

A term can only be challenged if it is properly incorporated into the contract. Issues include:

• Was the clause clearly included in signed documents?
• Was it part of standard terms referenced properly?
• Was it brought to attention before agreement?

Hidden or unexpected clauses may be more vulnerable to challenge.

Step 3: Assess statutory protection under UCTA

If UCTA applies, determine whether:

• The clause excludes or limits liability for negligence
• The contract is based on standard written terms
• The reasonableness test is likely to apply

If the clause fails reasonableness, it may be unenforceable in whole or part.

Step 4: Evaluate fairness under commercial context

Courts consider the broader commercial relationship, including:

• Equality of bargaining power
• Whether negotiation was possible
• Industry norms
• Whether the term was standard practice or unusual

A heavily imbalanced contract is more likely to be scrutinised.

Step 5: Gather evidence

To challenge an unfair term, relevant evidence may include:

• Contract drafts and negotiation history
• Email correspondence
• Evidence of lack of negotiation
• Market comparisons with similar contracts
• Proof of lack of awareness or transparency

This evidence is often decisive in disputes.

Step 6: Raise the issue with the other party

Many disputes are resolved before litigation through:

• Contract renegotiation
• Commercial settlement
• Variation agreements
• Mediation or alternative dispute resolution

Courts expect parties to attempt resolution where possible.

Step 7: Litigation or formal dispute resolution

If the issue cannot be resolved, a party may challenge the term through:

• Breach of contract proceedings
• Declaratory relief (asking the court to rule on enforceability)
• Defence in enforcement proceedings

The court will determine whether the clause is valid and enforceable.

Types of Clauses Commonly Challenged

Limitation of liability clauses

These often cap financial exposure and may be struck down if unreasonable.

Exclusion clauses

Clauses attempting to exclude liability for negligence or breach of fundamental obligations require very clear wording.

Indemnity clauses

Overly broad indemnities may be reduced or limited by interpretation or reasonableness rules.

Penalty clauses

Disproportionate financial penalties are often unenforceable.

Automatic renewal clauses

May be challenged if not transparent or properly highlighted.

Remedies if a Term Is Found Unfair

If a court finds a clause unfair or unenforceable, it may:

• Strike out the clause entirely
• Limit its effect
• Reinterpret the clause narrowly
• Allow the remainder of the contract to continue

The rest of the contract usually remains valid if it can operate independently.

Time Limits for Bringing a Challenge

There is no specific statutory time limit for challenging a term itself, but limitation periods apply to underlying claims:

• Generally 6 years for breach of contract under the Limitation Act 1980
• Shorter periods may apply in some specialist contexts

Early action is important, especially where contracts continue to operate.

Risks of Challenging Contract Terms

Challenging a term can involve:

• Litigation costs and legal expenses
• Commercial relationship breakdown
• Risk of adverse costs orders if unsuccessful
• Uncertainty during ongoing contract performance
• Delay in resolving the underlying dispute

These risks often influence whether disputes are settled commercially.

Practical Considerations

Before challenging a term, parties typically consider:

• Strength of bargaining position
• Commercial value of the contract
• Likelihood of success under UCTA or common law
• Whether renegotiation is possible
• Cost-benefit analysis of litigation

Legal challenges are most effective where the clause is clearly disproportionate or hidden.

Key Takeaways

Unfair terms in commercial contracts in England and Wales are primarily assessed under the Unfair Contract Terms Act 1977 and common law principles of contractual interpretation. The key test is reasonableness, along with strict scrutiny of exclusion, limitation, and penalty clauses. To challenge an unfair term, a party must identify the clause, assess its incorporation, evaluate statutory protections, gather evidence, and attempt resolution before litigation. Courts may strike out or limit unfair terms, but commercial context and bargaining power play a significant role in determining outcomes.