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.
A detailed guide on challenging unfair contract terms in England and Wales. Learn how the Consumer Rights Act 2015 defines unfair terms, how to identify them, your legal options to challenge them (including complaints, reporting to authorities, ADR, and courts), and practical tips for taking action when a contract unfairly limits your rights.

Many people enter contracts every day - for mobile phone plans, gym memberships, banking services, online purchases, and more. Most of these contracts contain terms and conditions drafted by the business supplying goods or services. While most terms are lawful and enforceable, some can be unfair. An unfair contract term can significantly disadvantage one party, particularly consumers, by giving undue power or limiting rights. Understanding how such terms can be challenged is essential for protecting your legal rights and seeking redress.
This guide explains what makes a contract term unfair under UK law, how to spot such terms, what legal protections exist, how to raise a challenge, and what remedies are available. We cover the key statute - the Consumer Rights Act 2015, the historical context, and practical steps for enforcement, including complaints, alternative dispute resolution, and court action.
What Is an Unfair Contract Term?
The Legal Definition
Under the Consumer Rights Act 2015 (CRA 2015), a term in a consumer contract is unfair if:
- it is contrary to the requirement of good faith, and
- it creates a significant imbalance between the rights and obligations of the trader and the consumer, to the detriment of the consumer.
This law applies to contracts entered into on or after 1 October 2015. For contracts entered before that date, the Unfair Terms in Consumer Contracts Regulations 1999 (UTCCRs) continue to apply. The CRA 2015 effectively replaced and updated the UTCCRs for modern consumer contracts.
Core or ‘Transparent' Terms
Certain terms - such as those that describe the main subject matter of the contract and the price - may not be subject to the fairness test, provided they are transparent and clearly presented in plain language.
Examples of Unfair Terms
While not exhaustive, the following types of clauses are commonly considered potentially unfair:
- Excessive cancellation fees or charges disproportionate to the breach.
- Unilateral variation clauses that allow a trader to change the price, characteristics of goods/services, or terms without clear justification.
- Terms that limit or exclude a party's legal rights or remedies unfairly.
- Automatic contract renewal with unreasonable opt‑out requirements.
- Clauses that transfer all risk to the consumer without justification.
Importantly, a contract term is not automatically unfair simply because it favours the business - the fairness test looks at whether it creates a significant imbalance and detriment to the consumer.
Legal Framework and Key Statutes
Consumer Rights Act 2015
The Consumer Rights Act 2015 is the principal legislation governing unfair terms in consumer contracts in England and Wales:
- It consolidates and updates earlier laws, including the UTCCRs.
- It defines unfair terms and provides that unfair terms are not binding on the consumer.
- It requires that terms be written in plain and intelligible language.
Unfair Terms in Consumer Contracts Regulations 1999
These Regulations still apply to historic contracts entered into before 1 October 2015. Under them, a term is unfair if it causes a significant imbalance and harms the consumer.
Unfair Contract Terms Act 1977
While the Unfair Contract Terms Act (UCTA) predates the CRA 2015 and targets the reasonableness of exclusion and limitation clauses, its relevance today is mostly in business‑to‑business or certain liability exclusion contexts, rather than direct consumer contract fairness tests.
How to Identify an Unfair Contract Term
Step‑by‑Step Assessment
- Read the Contract Carefully
Look for clauses that appear to affect your rights materially - for example, cancellation penalties, automatic renewals, significant variation clauses, or liability exclusions. - Check for Transparency and Plain Language
Contract terms should be clear, easily understandable, and prominent. Terms hidden in “small print” or ambiguous language may be more likely to be unfair. - Consider Balance and Detriment
Does the term disproportionately benefit the trader at your expense? For example, can the trader increase prices or change services unilaterally without offering you a corresponding right? - Evaluate Against Statutory Lists
Both the CRA 2015 and older Regulations include non‑exhaustive lists of terms that are likely to be regarded as unfair or require scrutiny.
Steps to Challenge an Unfair Term
1. Raise the Matter with the Trader
Start by writing to the business that supplied the contract. Your communication should:
- Identify the specific term you believe is unfair.
- Explain how it creates a significant imbalance.
- Reference the relevant law (e.g., CRA 2015).
- State the outcome you seek (e.g., removal of the term, refund, or contractual adjustment).
Keeping records of all correspondence is important for evidence in any further action.
2. Report to Enforcement Bodies
If the business refuses to address your concern, you can report the term to:
- Competition and Markets Authority (CMA) - the national enforcement authority for consumer protection and unfair contract law.
- Local Trading Standards Office - can investigate and take action against businesses using unfair terms.
These bodies can pursue legal action to prevent businesses enforcing unfair terms.
3. Alternative Dispute Resolution (ADR)
Many industries have ADR schemes (such as ombudsmen) that can assess disputes between consumers and businesses. ADR can be quicker and less costly than court proceedings and sometimes includes compensation.
4. Court Action
Ultimately, only a court or tribunal can officially determine whether a term is unfair under the CRA 2015 or corresponding regulations. If you decide to pursue a claim:
- You may seek a declaration that a term is unfair and therefore unenforceable.
- You may pursue remedies such as compensation if you have suffered loss as a result.
- Small claims procedures may be appropriate for lower‑value disputes, while more complex matters may involve County Courts or the High Court.
Practical Considerations and Risks
No Guarantee That a Term Will Be Deemed Unfair
Even if a term seems one‑sided, the court will assess fairness in the context of the whole contract and circumstances. Not all unfavourable terms are unfair if they are clear, transparent and agreed.
Core Terms Are Exempt
Terms expressing the main subject of the contract and price may be exempt from the fairness test, so long as they are transparent and prominent. This is an important limitation.
Time Limits
There is no fixed statutory deadline to challenge an unfair term (unlike some consumer rights claims). However, bringing a dispute promptly is advisable to preserve evidence and support your case if it goes to court.
Summary
Challenging unfair contract terms in England and Wales is a practical application of statutory consumer protections designed to prevent businesses from imposing terms that significantly disadvantage consumers. Key points include:
- The Consumer Rights Act 2015 provides the modern legal test for unfair terms in contracts entered after 1 October 2015.
- A term is unfair if it is not in good faith and creates a significant imbalance to the consumer's detriment.
- Common unfair terms include excessive cancellation fees, unilateral variation rights, and terms limiting legal rights.
- To challenge an unfair term, start with a written complaint to the trader, report to enforcement bodies, consider ADR options, and, if necessary, pursue court action.
Understanding your rights and the legal framework empowers you to confront unfair contract provisions effectively. Even if a term is ultimately unenforceable, the process of challenging it can lead to better outcomes - such as improved contract fairness and protection for future consumers.