The resignation letter is the artifact of a decision that has already been made. By the time you sit down to write it, the hard work is done — the math is run, the spouse is told, the date is set. The letter is the paperwork. Most people overwrite it because they confuse the paperwork with the closure. The paperwork is for HR. The closure happens somewhere else.
Three rules
Be short. Six lines is enough. Eight is the ceiling. Every additional sentence is an opportunity to say something you’ll regret or to invite a conversation you don’t want.
Give a date. Specific, written in numerals. “My last day will be Friday, April 17” is a sentence. “I plan to wind down over the coming weeks” is an invitation to negotiation.
Don’t explain. Not your reasons, not your next move, not your gratitude in any volume above the perfunctory. “I am leaving for personal reasons that do not concern this company” is a complete sentence. So is “I have decided to pursue other priorities.” The instinct to justify is the instinct that keeps you in the room. Resist it on paper the way you’ve stopped resisting it in your head.
The template
Dear [Manager],
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This letter is to formally notify you that I am resigning from my position as [Title] at [Company]. My last day will be [Date], providing [two/three/four] weeks’ notice from today.
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I will use the remaining time to document my responsibilities and support a clean transition. Please let me know how I can be most helpful in the handover.
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Thank you for the opportunity.
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Sincerely,
[Name]
That is the letter. Read it twice. Notice what isn’t in it: no reason, no apology, no manifesto, no destination, no thank-you-for-the-journey. Notice also what is in it: a date, an offer to help with transition, a signature. The letter does exactly one thing — it starts the clock — and it does that thing well.
If your company requires a specific format or address line, follow it. If your jurisdiction requires more notice (the UK, parts of the EU), give the legal minimum and not a day more. If you have stock vesting that pivots on a date, time the letter to that date with cold precision.
What not to do
Do not write the manifesto. The manifesto is the letter that explains, at length, why this company failed you, what management could have done differently, which colleagues you respected and which you didn’t. It feels good in draft. It is almost always sent in a moment when you mistake catharsis for clarity. You will reread it in five years and wince.
Do not perform gratitude you don’t feel. The thank-you paragraph that lists everything the company gave you reads, to anyone who has read more than three resignation letters, as either a sales pitch for a reference or a guilty attempt to pre-apologize for leaving. One line. “Thank you for the opportunity.” If you can’t manage that without lying, leave the line out and end at the signature.
Do not announce your next move. Not the new job, not the early retirement, not the sabbatical, not the move to Lisbon. The letter is not a forum for your news. Your former employer is not entitled to know what you’re doing on Monday. The information will leak through other channels at the pace you choose.
Do not name names. Even if specific people drove you out, the letter is not the venue. If you need that conversation, schedule it separately and have it in person. The written record is permanent and read by people who weren’t in the room.
Do not soften the date. “Sometime in April” is not a date. “Around the end of the month, depending on workload” is not a date. The date is a sentence the company can plan against. Give them a sentence.
The letter is for HR. Your closure happens in your own head, in your own time, somewhere quieter than a manager’s inbox. The piece of paper does not need to be heavy. It needs to be unambiguous. Sign it, send it, and stop rereading it.
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