Official ACAS wording, subject line included. Ready to paste in seconds. Nothing leaves your browser.
A formal resignation letter, printed, signed, and handed to your manager or sent by post.
Paste into a new email. The subject line is shown above. The .txt download is for your records.
Keep the subject plain so it is not missed. Any of these work:
Sent on 15 March 2027 with one month's notice. Built from the ACAS resignation template wording.
Yes. gov.uk says your contract will tell you whether notice must be in writing, and otherwise you can even do it verbally. An email is in writing, so it works in most cases and gives you a dated record.
Something plain your manager will not miss, such as "Resignation: [Your name], [Job title]". The generator adds it for you.
Usually the day after you tell your employer, unless your contract says otherwise. Send it during working hours so there is no doubt about when it arrived. The notice period calculator shows your last day.
No. The ACAS template does not include one. You can add a short reason if you want to.
It is good practice to tell them in person or on a call first, then send the email so there is a written record.
Sources: ACAS resignation letter template gov.uk: handing in your notice ACAS: when the notice period starts
Last reviewed: 24 September 2026. General guidance only, not legal advice. For anything complex, call ACAS on 0300 123 1100.
myresignationletter.co.uk is a free, single-purpose tool that generates a UK resignation letter using the exact wording of the official ACAS template, with your details inserted. No accounts, no email capture, no payments. All processing happens in your browser. Nothing you type is sent to a server.
This tool is for general guidance only and does not constitute legal advice. For complex situations (particularly any case involving forced resignation, harassment, discrimination, breach of contract, or unpaid wages) speak to ACAS on 0300 123 1100, a qualified employment solicitor, or your trade union.
Last reviewed: 20 May 2026. The legal references on this page were verified against the live ACAS website and legislation.gov.uk on this date.
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