How to write a resignation letter with AI

To write a resignation letter with AI, tell the tool your role, your last working day, and the tone you want, then ask it for a short, gracious letter. Give it your notice period so it can state the right final date. Always read the draft closely, personalise it, and check your contract for the notice you owe.

What you will end up with

A short, professional resignation letter that states you are leaving, names your last working day, and thanks your employer warmly. It will read as gracious and calm, the kind of letter that keeps the door open in case your paths cross again.

What you will need

• Any AI chat tool: Claude, ChatGPT, Gemini, or Copilot all work well.
• Your job title and the name of your manager or the person the letter is addressed to.
• Your notice period, which you will find in your contract.
• About 10 to 20 minutes.

If writing this feels daunting, that is completely normal. A resignation letter carries a lot of feeling, but the letter itself is short and follows a well-worn pattern, and AI is good at holding that structure steady while you focus on getting the details right.

Step 1: Decide the essentials

Before you open an AI tool, gather four small facts: your role, your last working day, your notice period, and the tone you want to strike. Getting these clear first makes everything that follows quicker and stops the AI from guessing.

For your last working day, check your contract for the notice you owe, then count that period forward from the day you plan to hand the letter in. If the maths is fiddly, you can ask the AI to help.

My notice period is [e.g. one month]. If I hand my resignation in on
[date], what would my last working day be? Please show me how you worked it out.

What to expect: a clear date and a short explanation. Treat this as a helpful double-check rather than the final word, and confirm the date with your manager or HR if you are at all unsure.

Step 2: Draft the letter with AI

Now give the AI your details and ask for a first draft. The more you tell it up front, the less you will need to fix afterwards, so include your role, your last day, and the tone you want in a single prompt.

Please write a short, professional resignation letter for me. Keep it warm,
gracious, and no longer than four sentences.

Details:
- My role: [job title]
- Addressed to: [manager's name]
- My last working day: [date]
- My notice period: [e.g. one month]

State clearly that I'm resigning, give my last working day, and thank them for
the opportunity. Don't invent a reason for leaving or add anything I haven't
given you.

What to expect: a tidy, brief letter that hits the key points without padding. If it runs long or drifts into detail you did not ask for, that is easy to trim in the next step.

If it does not work: if the draft feels stiff or over-formal, reply with “Rewrite this in a warmer, more natural voice, keeping it as short.”

Step 3: Adjust the warmth and formality

The right tone depends on your workplace and your relationship with your manager. A close-knit team and a large formal organisation call for slightly different letters, so it is worth seeing a couple of versions side by side.

Give me two versions of this letter: one a little more formal and one warmer and
more personal. Keep both short, and don't add any new details, change only the
tone and wording.

What to expect: two takes on the same letter. Pick the one that fits how you and your manager actually speak to each other, or borrow a line from each.

Step 4: Add an optional handover line

Offering to help with the handover is a small, generous touch that employers remember. It signals you are leaving responsibly and helps preserve the goodwill you have built. This line is optional, so include it only if you mean it.

Add one short, optional sentence offering to help with a smooth handover during
my notice period. Keep it genuine and low-key, not over-eager.

What to expect: a single graceful sentence you can keep or drop, something like an offer to document your work or help train whoever takes over.

A reusable template

If you would rather start from a fixed shape and fill in the blanks yourself, here is a clean template. Replace everything in square brackets with your own details.

Dear [Manager's name],

I am writing to formally resign from my position as [job title] at [company
name]. In line with my notice period, my last working day will be [date].

Thank you for the opportunity and support during my time here. I have valued
[working with the team / what I've learned / a genuine detail], and I wish the
team every success.

I am happy to help with a smooth handover over the coming weeks.

With best wishes,
[Your name]

You can paste this into an AI tool and ask it to tailor the wording to your situation, or use it as it stands.

Keep it positive, even on a hard exit

Sometimes you leave on difficult terms, and writing a gracious letter can feel like the last thing you want to do. It is still worth doing. A resignation letter becomes part of your record, and a calm, generous one protects the reference you may need later.

Keep any frustration out of the letter itself. If you have feedback to share, an exit conversation is the place for it, where you can be measured and specific. The letter has one job: to close this chapter cleanly and leave people thinking well of you.

Next steps

Read your finished letter slowly, out loud if you can, and make sure every detail is yours and correct: the date, the names, and the tone. AI gives you a strong starting point, but the final letter should sound like you and reflect your real situation, so personalise anything that feels borrowed and double-check your notice against your contract before you send it.

When you are ready, explore more ways AI can support you at work in what AI can do for your job and our wider guidance for workers, or browse the prompt library for more everyday templates.