Constructive Dismissal Resignation Letter: Free Template and What to Include
How to resign citing fundamental breach of contract by employer — how to structure it, your rights.
A free fill-in template is at the end of this guide.
← All Letter Guides · Employee · Last updated 18 August 2026 · Published by UK Work Rights Ltd
This is free rights information, not legal advice. For advice specific to your situation, see our About page or contact Citizens Advice.
If you need to resign citing fundamental breach of contract by employer, a written letter is the recommended first step — it creates a clear record and shows you're pursuing the matter formally. Below is what a strong constructive dismissal resignation should include.
What this letter needs to cover
- Clearly state this is a resignation in response to a fundamental breach of contract
- Identify the specific breach
- State this is being treated as constructive dismissal
- Reserve all employment tribunal rights
- Reference ACAS Early Conciliation requirement
What makes a resignation a constructive dismissal claim
Constructive dismissal isn't simply resigning because you're unhappy at work — it requires your employer to have committed a fundamental breach of contract serious enough that you're entitled to treat the contract as ended and leave without notice. This could be a single serious event, or a pattern of conduct that cumulatively breaches the implied term of trust and confidence between employer and employee.
What to include before you send it
- A clear, factual description of the breach or pattern of conduct you're relying on
- Confirmation that you're resigning specifically because of this breach, not for unrelated reasons
- Your last working day, calculated appropriately given you're not required to work your notice period in a genuine constructive dismissal
- A statement that you reserve the right to bring a tribunal claim
Why timing matters so much
You generally need to resign reasonably promptly after the breach — waiting too long, or continuing to work normally for an extended period afterwards, can be treated as "affirming" the contract, which can seriously undermine a constructive dismissal claim. This doesn't mean you need to resign the same day, but delaying without good reason is risky.
Frequently Asked Questions
Do I need to raise a grievance before resigning?
It's not always a strict legal requirement, but raising a grievance first can strengthen your position by showing you gave your employer a chance to address the issue — though in cases of a single very serious breach, immediate resignation may be justified.
What compensation could I claim?
If successful, a constructive dismissal claim is treated similarly to an unfair dismissal claim for compensation purposes, though outcomes depend heavily on the specific facts and evidence.
Letter template
A letter to start from. Copy it, fill in the [square brackets] and change anything that does not fit your situation.
[Your Name] [Your Address] [Your Postcode] [Your Phone Number] [Your Email Address] [Name of Contact / HR Manager] [Company Name] [Company Address] [Company Postcode] [Date] Dear [Name of Contact / HR Manager], Subject: Resignation – Constructive Dismissal Please accept this letter as formal notice that I am resigning from my position as [Your Job Title] with immediate effect. I am resigning without notice because of the company's fundamental breach of my employment contract. The company's actions have destroyed the implied term of mutual trust and confidence between us, and I am treating myself as constructively dismissed. The breach is [choose one: a serious single incident / a series of incidents ending with a 'last straw' event], as set out below: • [Date or period] – [e.g. The company did not pay my agreed bonus for three months in a row.] • [Date or period] – [e.g. I was bullied by my line manager and, although I raised a formal grievance on [Date], it was not investigated.] • [Date of the 'last straw', if it applies] – [e.g. On [Date], my manager removed all my supervisory duties in front of my team.] I reserve all my rights to bring a claim to an employment tribunal [in Northern Ireland: an industrial tribunal], including for constructive unfair dismissal. I understand I must contact Acas [in Northern Ireland: the Labour Relations Agency] for early conciliation before making a claim. Please pay my final salary, including any accrued but untaken holiday pay, up to today, and send me my P45 and written details of my final payment. Yours sincerely, [Your Signature] [Your Printed Name]
General information, not legal advice. Change the letter to fit your situation. The copy button copies the letter to your device. We only count that a letter was copied – the text you copy is never sent or stored.
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