How do I write a good resignation letter?

Leaving a job is never just about handing in your notice. It’s often tangled with mixed emotions, difficult conversations, and the pressure to get it right on paper. A well-written resignation letter can help you leave on good terms, maintain professional relationships, and set the tone for what comes next.

But what exactly makes a resignation letter “good”? Let's break it down.

Why your resignation letter matters more than you think

It may feel like a formality, but your resignation letter serves several important purposes:

• It's a permanent record of your decision to leave

• It sets out your notice period

• It helps HR and management plan the transition

• It reflects on your professionalism

  
  

In short, it's more than a goodbye note. It's part of your legacy at that company.

1. Keep it short, clear and respectful

This isn’t the time for life stories. A good resignation letter is clear, polite and to the point. Aim for one page. Include:

• A direct statement of resignation

• Your last working day

• Thanks for the opportunity

• A willingness to support the transition

  
  

Even if your time at the company has been difficult, keep the tone professional. You’re not required to explain your reasons in detail, but if you choose to, stay constructive.

2. Timing is everything

Your resignation letter should come after an in-person or virtual conversation with your line manager. It’s not a cold announcement. Ideally, you’ll give at least the notice period specified in your contract.

If you’re unsure what’s required, check your original employment agreement or consult ACAS guidance on notice periods: www.acas.org.uk/notice-periods

3. Use a proper structure

Here’s a simple format you can follow when writing your resignation letter:

• Start with the greeting: "Dear [Manager’s Name],"

• Begin with your resignation statement: "Please accept this letter as formal notice of my resignation from [Your Job Title] at [Company Name]. My last working day will be [Date], in line with my notice period."

• Add a note of thanks: "I’d like to thank you and the team for the opportunities and support I’ve received during my time here. It’s been a pleasure working with you, and I’ve learned [mention a key skill or experience if you wish]."

• Offer support during the transition: "During the transition, I’m happy to help ensure a smooth handover."

• Close politely: "Warm regards, [Your Full Name]"

  
  

4. Avoid emotional or reactive writing

Even if you’re resigning due to conflict or dissatisfaction, this letter isn’t the place to air grievances. For HR records and future references, your resignation letter should show you’ve handled the process maturely. If you feel strongly about unresolved issues, address them in a separate conversation or formal exit interview.

5. Know your rights and obligations

Before you hit send, make sure you’ve reviewed your legal obligations. If you’re unsure about your holiday pay, garden leave, or final salary, refer to the UK government’s employment rights guidance: www.gov.uk/handing-in-your-notice

You might also want to check whether you’re subject to any non-compete clauses or confidentiality agreements.

A real-world example

A LetterLab client recently reached out with one of the trickiest situations we’ve seen, resigning after a toxic management change and a formal grievance. We helped her write a resignation letter that was firm, professional and calm, all without burning bridges. The result? She secured a positive reference and her next employer respected the way she handled the situation.

Don’t write it alone

At LetterLab, we understand how delicate resignation letters can be. Whether you're leaving your job on good terms or navigating a more complex exit, we can help you find the right words, respectful, clear, and tailored to your situation.

If you’re struggling to strike the right tone, we’re here to help.

Ready to resign with dignity and clarity? Let us write the perfect resignation letter for you. 

Visit www.letterwritingservice.co.uk and let LetterLab help you take the next step, professionally.