Has your employer changed your contract without your agreement? Understand your rights, what counts as a breach, and what options may be available.
Last reviewed: 30 March 2026
Quick answer
An employer generally cannot change the terms of an employment contract without the employee’s agreement. A unilateral change to a fundamental term — such as pay, hours, location, or job duties — may amount to a breach of contract and could potentially give rise to a constructive dismissal claim if the employee resigns in response.
What this means in practice
When an employer proposes changes to contract terms, the employee is generally entitled to be consulted and to agree or refuse. If the employer imposes the change without agreement, the employee has several options depending on the circumstances. Some people work under protest, making clear in writing that they do not accept the change but continuing to work while they consider their position. Others raise a formal grievance. In some cases, the change may be so fundamental that the employee considers resignation and a constructive dismissal claim. If the employer dismisses the employee for refusing to accept the new terms and offers re-engagement on the new terms, this may be treated as a dismissal that could be tested for fairness at tribunal. The employer’s reasons for the change and the process followed are relevant to whether a tribunal would consider any resulting dismissal to be fair.
Common situations
Common situations include: having pay reduced without agreement, being moved to a different work location that significantly increases travel time, having job responsibilities substantially changed, working hours being altered without consultation, commission or bonus structures being changed, being moved from a permanent contract to a zero-hours contract, and having benefits such as private healthcare or pension contributions reduced or removed.
What UK law says
Employment contracts are governed by general contract law principles, and any variation requires consideration and agreement from both parties. Section 4 of the Employment Rights Act 1996 requires employers to notify employees of changes to written particulars within one month. Section 95(1)(c) ERA 1996 provides for constructive dismissal where an employee resigns due to the employer’s fundamental breach of contract. Section 104 ERA 1996 protects employees from dismissal for asserting a statutory right, which includes objecting to unlawful deductions from wages. The Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) provide additional protections against changes to terms connected to a business transfer.
What people often consider
People whose contract has been changed without agreement often consider whether to continue working under protest while formally objecting in writing. Some explore raising a formal grievance about the change. Others look into whether the change might amount to an unlawful deduction from wages if it affects pay. In cases where the change is particularly significant, some people consider whether it constitutes a fundamental breach of contract that could support a constructive dismissal claim, though this is a significant step that generally warrants legal advice. Where changes are proposed in the context of a TUPE transfer, specific protections may apply.
Common mistakes to avoid
Common mistakes include: continuing to work under the new terms for a long period without objecting in writing (which may be taken as acceptance), resigning too hastily without exploring other options or seeking advice, not putting objections in writing at the earliest opportunity, failing to check whether the contract contains a flexibility or variation clause that might authorise certain changes, and not seeking legal advice before making irreversible decisions.
Frequently asked questions
Can my employer reduce my pay without my agreement?
Generally, no. Pay is a fundamental term of the employment contract, and reducing it without agreement may constitute a breach of contract and an unlawful deduction from wages under s.13 ERA 1996. However, the position may be different if the contract contains a specific clause allowing variation in certain circumstances.
What does ‘working under protest’ mean?
Working under protest means continuing to work while formally notifying the employer in writing that the contract change is not accepted. This preserves the employee’s position while they consider their options. It is important to make the objection clearly and promptly to avoid any suggestion that the change has been accepted.
Can my employer change my working hours without agreement?
Unless the contract contains a flexibility clause that specifically permits changes to hours, an employer generally cannot unilaterally change working hours. Such a change without agreement may amount to a breach of contract, and the employee may have grounds to object formally.
What happens if I refuse to accept the contract change?
If an employee refuses to accept a contract change, the employer may withdraw the proposed change, attempt further negotiation, or in some cases dismiss the employee and offer re-engagement on the new terms. Such a dismissal could be challenged as unfair dismissal if the employer did not act reasonably in all the circumstances.
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This guide provides general information about UK law and is not legal advice. Laws and regulations may change. For advice specific to your situation, consult a qualified solicitor. LawClarity is an informational service only.