This guide is maintained as a current resource for September 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.
Learn how to challenge an unfair term in a business contract in England and Wales. This comprehensive guide explains the legal tests under the Unfair Contract Terms Act 1977, how to assess contract fairness, practical steps to negotiate or litigate, and what evidence and remedies may apply when a contract term is unreasonable or unenforceable.

Commercial contracts are the backbone of business relationships, but not all contractual terms are enforceable. Sometimes, a clause may be unfair, unenforceable or unreasonable, leaving one party at a disadvantage. In England and Wales, legal rules exist to protect parties - particularly smaller businesses - from unfair contract terms. This guide explains what constitutes an unfair term in a business contract, the legal tests and processes you can use to challenge it, and practical steps to resolve disputes effectively.
What Is an Unfair Term in a Business Contract?
In the context of contractual law, an unfair term is one that imposes a significant imbalance between the rights and obligations of the parties to the detriment of one side. For example, a clause that excludes liability for poor performance, limits remedies excessively, or permits unilateral changes to the contract may be considered unfair and unenforceable. Courts assess fairness based on the circumstances at the time the contract was made, including bargaining power, the transparency of wording and whether both parties understood the term.
Importantly, while there are statutory protections for consumer contracts under the Consumer Rights Act 2015, business‑to‑business (B2B) contracts rely primarily on the Unfair Contract Terms Act 1977 (UCTA) to challenge unfair limitation or exclusion clauses and other unreasonable terms.
Legal Framework: When You Can Challenge a Term
Unfair Contract Terms Act 1977 (UCTA)
UCTA plays a central role in B2B disputes. It governs contracts in which one party seeks to limit or exclude liability for breaches of contract or negligence. Under UCTA:
- Terms that exclude liability for death or personal injury due to negligence are always void.
- Other limitation or exclusion clauses must pass a reasonableness test - meaning they must be fair and reasonable in all the circumstances when the contract was agreed.
- A term is more likely to be found unfair where there was a significant imbalance in bargaining power or where the party seeking to enforce the clause could have obtained insurance to cover the risk.
The reasonableness test looks at factors such as whether both parties knew about the term, whether independent legal advice was available, industry norms and the relative negotiating positions.
Consumer Rights Act 2015 (CRA)
If a contract is with a consumer - defined as an individual acting outside their trade, business or profession - the Consumer Rights Act 2015 applies. It states that unfair terms are not binding on consumers and a court must consider whether a term is unfair, based on whether it causes significant imbalance and respects the requirement of good faith. However, this regime does not typically apply to commercial contracts between businesses.
Common Types of Challenged Terms in Business Contracts
Businesses often dispute terms such as:
- Exclusion or limitation of liability for breach, negligence or defective performance.
- Unilateral variation clauses, allowing one party to change terms without consent.
- Penalty clauses or excessively high charges for breach or termination.
- Unreasonable indemnities or demands to waive rights unfairly.
- Automatic renewal or termination conditions that place onerous obligations on one party.
These terms may be enforceable if they pass the statutory reasonableness or, in consumer contexts, fairness tests; if not, they can be challenged in negotiations or litigation.
Step‑by‑Step: How to Challenge an Unfair Term
1. Review the Contract Carefully
Begin by reading the contract closely, noting the language and scope of the disputed term. Identify whether the term:
- Limits liability, excludes remedies, or changes rights unilaterally;
- Was part of standard form terms (more likely to be challenged);
- Was negotiated individually or presented on a “take it or leave it” basis; and
- Is integrated with other terms that impact fairness.
Understanding the wording and context is essential before deciding how to proceed.
2. Gather Evidence
To challenge a term, collect evidence showing:
- The presence of the clause and its exact wording;
- The circumstances of contract formation (e.g., lack of negotiation, imbalance of power);
- Any losses or disadvantages suffered as a result; and
- Communications or negotiations that reveal knowledge or acceptance of the term.
Evidence is critical if you need to escalate the matter.
3. Engage in Pre‑Action Negotiation
Before initiating court action, attempt to resolve the issue amicably:
- Write a formal challenge letter or Letter Before Action, explaining why the term is unenforceable and the remedies you seek.
- Propose amendment or removal of the term, or document a mutual agreement on how the contract should operate.
- Consider alternative dispute resolution (ADR) such as mediation or arbitration to resolve the dispute without litigation.
Many disputes are resolved at this stage, saving time and costs.
4. Consider Court Proceedings
If negotiation fails, you may need to issue a claim in the appropriate court:
- For disputes under certain financial thresholds, use the County Court or even the small claims track if applicable.
- For larger or complex commercial disputes, High Court proceedings may be more appropriate.
Your claim should outline:
- The contractual basis of the term;
- Why the term is unfair under applicable law (UCTA reasonableness or consumer fairness test where relevant);
- Evidence of loss or detriment caused by the term; and
- Remedies you seek (for example, declaration that the term is unenforceable and compensation).
A court may find the term unenforceable and may also award damages where a party has suffered loss because of reliance on an unfair term.
Practical Considerations and Risks
Burden of Proof
In B2B cases under UCTA, the party seeking to enforce the term must satisfy the court that the term is reasonable; otherwise, it will be struck down. This shifts the burden in your favour when challenging a limitation or exclusion clause.
Enforcement and Remedies
If the court finds a term unfair or unreasonable:
- The term may be declared unenforceable, and the rest of the contract may continue if possible;
- The court may award damages for loss arising from reliance on the unfair term;
- In extreme cases, the contract could be treated as void if its core obligations become unenforceable.
Legal costs and time involved in litigation should be weighed against potential benefits.
Common Questions About Challenging Unfair Terms
Can Any Business Contract Term Be Challenged?
While B2B contracts are subject to freedom of contract, terms that exclude or limit liability, impose unfair penalties or allow unilateral changes can be challenged under UCTA if they fail the reasonableness test. Not all terms are subject to this: terms that simply set the main subject matter and price may be outside the scope of UCTA, provided they are transparent and clear.
Is Negotiation Optional?
Negotiation is strongly advised and often required before court proceedings. Sending a Letter Before Action or using ADR demonstrates a willingness to resolve the matter without litigation and can influence court directions and cost awards.
How Long Do I Have to Act?
Although there is no specific limitation for challenging a term, actionable claims for loss or detriment are bound by the Limitation Act 1980, which typically gives six years from the date of breach or from when the term was invoked. Initiating early is usually prudent.
Key Takeaways
Challenging an unfair term in a business contract in England and Wales involves understanding key statutory frameworks such as the Unfair Contract Terms Act 1977 and, in certain consumer contexts, parts of the Consumer Rights Act 2015. Focus first on reviewing the contract and gathering evidence of imbalance or detriment. Engage with the other party through negotiation and formal correspondence. If these efforts fail, pursue a court claim arguing that the term is unreasonable or unfair and should not be enforced. While enforcement and litigation can involve time and expense, the legal framework provides mechanisms to protect businesses from one‑sided or unjust contract terms.