Constructive dismissal: evidence to discuss

Constructive dismissal concerns resignation in response to an employer's serious contractual breach. It is a demanding legal assessment; being unhappy at work does not by itself establish the claim. Acas advises obtaining help before resigning. ^[1]

Identify the breach and your response

Describe the conduct or change relied on, when it happened and why it undermines the employment relationship. If there is a sequence of events, explain the earlier incidents and the final event separately. Preserve correspondence showing what you challenged and how the employer replied.

Timing matters. Continuing to work, raising a grievance or delaying a decision may affect the analysis, but there is no safe universal number of days to wait. Explain your circumstances to an adviser before choosing a course.

Consider resignation's practical consequences

Discuss notice, income, benefits, references and possible claims before sending a resignation letter. The wording should accurately reflect your reasons; copying a forceful template does not create a claim that the facts do not support.

A grievance may be one way to raise the problem, depending on the circumstances. Time limits still need separate attention if resignation occurs. Keep evidence of the decision-making sequence rather than reconstructing it only after employment has ended.

Describe the contractual problem without assuming the legal answer Identify the employer's act or omission and the obligation you believe it undermines. The issue may involve an express term, a pattern of conduct or the relationship of trust and confidence. Describe what happened with dates and documents rather than beginning with a template assertion that you have been constructively dismissed. Acas explains that the claim concerns resignation following a serious contractual breach and recommends advice before resigning. [1] An upsetting decision is not automatically a breach of the required seriousness.

If several events are relied on, arrange them in order and explain their connection. Identify the final event that prompted the resignation question and what changed at that point. Keep earlier complaints and employer responses, including any attempt to resolve matters. A sequence should not be reconstructed selectively after employment has ended. An adviser needs to see both the incidents causing concern and any subsequent agreement, improvement or explanation that may affect whether the employment contract was treated as continuing.

Explain your response as carefully as the employer's conduct Record when you became aware of the relevant event, what you said and what you did afterwards. Continuing to work, accepting changed arrangements, taking leave or raising a grievance may all need to be understood in context. There is no universal safe waiting period that preserves a claim regardless of circumstances. Explain financial pressures, health issues and the time needed to obtain advice without assuming these facts settle the legal effect. Prompt, individual advice is more useful than applying a fixed number of days found in a template.

Preserve communications showing any objection to a change and the employer's response. If you agreed a temporary arrangement, record its duration and purpose. Do not rewrite an agreement after the event to make it appear more conditional than it was. Equally, an employer's description of your conduct as acceptance may need examination against what you actually said and did. Provide the whole exchange, including messages that are inconvenient to your preferred argument, so advice can address the risks rather than an incomplete version of the relationship.

Consider available steps before making resignation irreversible Ask whether a grievance, request for clarification, medical support or another response is appropriate to the problem. These options do not guarantee that the situation will improve or that a claim will be preserved, but their suitability can be assessed before a resignation is sent. If remaining at work presents an immediate health or safety concern, explain that urgency. The adviser should understand the practical situation and the alleged breach together, rather than treating the decision as a purely theoretical choice between staying indefinitely and leaving immediately.

Review the consequences for notice, income, benefits and any new role. Leaving without notice may itself raise contractual issues, depending on whether the alleged breach justifies that step. A successful claim is not assured, and payment is not automatically available simply because resignation was understandable. Prepare a realistic account of what support or income would be available after leaving. If the employer proposes a settlement, obtain advice on the full terms and the claims affected before assuming that a compensation figure resolves the decision you face.

Make the resignation record accurate if resignation occurs If you decide to resign after advice, ensure the communication truthfully explains the reasons and timing. Avoid adding legal allegations you cannot support or stating a different reason merely to keep the letter polite if that would misrepresent the decision. Keep the sent version, receipt and employer response. Record whether notice is given and the proposed end date. The wording is evidence of your account, but it cannot manufacture a serious breach or replace the need to establish the facts behind the decision.

After employment ends, preserve final pay records and evidence of attempts to find other work. Tell the adviser promptly about any changed reason given by the employer, internal appeal or later settlement offer. Check the relevant tribunal and conciliation deadlines separately from ongoing correspondence. If other claims may arise from the same events, ask how they differ in eligibility and evidence. A coherent file should connect the alleged breach, your response, resignation and subsequent loss, enabling the available routes to be assessed without assuming that the label constructive dismissal decides the outcome.