Can Your Employer Change Your Contract Without Telling You?

What a Variation Clause Looks Like

The most common version: ‘The Company reserves the right to make reasonable changes to your terms and conditions of employment. You will be informed in writing of any such changes.’

A broader version: ‘The Company reserves the right to change your duties, working location, or reporting structure to meet the operational needs of the business.’

‘Reasonable’ is the key variable. Employers and employees frequently disagree about what constitutes a reasonable change — and that disagreement, when it escalates, turns into an employment dispute.

What Employers Can Generally Change

• Working practices and policies — expenses procedures, IT policies, holiday request processes. These aren't contractual terms and can be updated without individual consent.
• Discretionary benefits not in the written contract — if your contract says bonuses are ‘at the Company's discretion,’ they can be removed without a contract variation.
• Minor administrative terms — small adjustments that don't affect your fundamental terms.

What Employers Cannot Change Without Consent

• Core terms — salary, working hours, job title and fundamental duties, and location are core contractual terms. Changing them without consent is a breach of contract.
• Contractually guaranteed benefits — if your contract specifies a minimum bonus, specific pension contributions, or named benefits, these cannot be removed unilaterally.
• Terms incorporated from collective agreements — in unionised workplaces, these cannot be varied by the employer alone.

What Happens If an Employer Forces a Change

If an employer attempts to impose a change you haven't consented to, you have several options:

• Accept it — if you continue working under the new terms without objecting, courts may treat this as implied consent.
• Object in writing and work under protest — this preserves your position without immediately triggering a formal dispute.
• Resign and claim constructive dismissal — if the change is fundamental enough to constitute a repudiatory breach, you may be able to resign and claim unfair dismissal. This requires two years of continuous employment.

What to Check Before You Sign

Look for variation clauses and assess how broadly they're written:

• Does the variation clause apply to core terms like pay, location, and duties — or only to secondary terms?
• Is ‘reasonable’ defined, or left entirely to the employer's discretion?
• Are any terms explicitly stated as fixed — particularly compensation, location, and role?

FAQ

Can my employer cut my salary without my consent?

No. Salary is a core contractual term. Reducing it without consent is a breach of contract. If you're faced with an imposed pay cut, respond immediately in writing objecting to the change — continuing to work in silence may be treated as implied consent.

What if my contract says my location is ‘flexible’?

A flexible location clause gives the employer more latitude, but doesn't mean unlimited. Requiring relocation to a different city on short notice would likely still be challenged as unreasonable.

Can an employer change my job description after I've signed?

Employers can reasonably adjust duties over time. But fundamentally changing your role — demoting you, removing management responsibilities, or assigning you to a completely different function — without consent is likely a breach of contract.

Is a verbal agreement to change contract terms binding?

Verbal agreements can be binding, but they're much harder to enforce. Any agreed changes to core terms should be confirmed in writing.

Related: Employment Contract Red Flags

BeforeYouSign is an AI-powered educational tool. It does not provide legal advice. Always consult a qualified legal professional before making binding legal decisions.