Formal Resignation Letters: Layout and Conventions

Formality here is about layout, not vocabulary. A formal resignation letter follows the same conventions as any business letter, and the parts people get wrong are almost always structural.

When formality is actually required

For most private-sector jobs, a short email is enough, and the two-week convention comes from your contract rather than from statute. Under at-will employment, as the Legal Information Institute explains, either party can generally end the relationship without cause, so what you owe is whatever your agreement and your reputation say you owe.

Formality earns its keep in a narrower set of cases:

• A handbook or contract that specifies written notice.
• Public-sector and unionised roles with a defined procedure.
• Regulated or licensed professions where the exit is recorded.
• Academic posts tied to a term or contract year.
• Any exit you expect to be disputed, where the document may be read years later.

Full block format, part by part

Everything is left aligned. No indented paragraphs, no centred header. The order is fixed.

1. Your name and contact details. Personal email and phone, not your work address, since that stops working.
2. The date. The day you hand it over.
3. The recipient block. Manager’s name, their title, the organisation, then the address.
4. Salutation. “Dear Ms Ferrante:” with a colon in formal US business style.
5. Body. Three short paragraphs.
6. Sign-off. “Sincerely,” or “Yours sincerely,” then space for a signature.
7. Your typed name, and “Enclosure” only if something is genuinely attached.

The date line is the part people get wrong

Two dates do two different jobs, and collapsing them causes real arguments.

The date line at the top is the day you deliver the letter. That is what starts the notice period. Your last working day belongs in the first paragraph, written out in full. A letter dated the 3rd that says “effective in two weeks” leaves the exact leaving date to whoever reads it later, which is how people end up with a final pay calculation they did not expect.

Write both. Check both against a calendar rather than counting in your head.

Salutation and sign-off conventions

Use the name you actually use with them. If you have called them Priya for six years, “Dear Priya:” is correct and “Dear Ms Raghunathan:” is odd.

Where you genuinely do not know who receives it, “Dear Sir or Madam:” still works in a formal register, though finding the name is better. Avoid “To Whom It May Concern” for a letter with a known department behind it.

For the close, “Sincerely” is the safe formal option. “Best regards” is fine in most workplaces. “Warm regards” and anything more affectionate belongs in a personal note, which you can send separately.

A complete formal letter

Rosa Achebe rosa.achebe@example.com (555) 014-2287

8 May 2026

Mr Daniel Okoye Regional Director Halstead Logistics 1400 Ferry Road, Building C Columbus, OH 43215

Dear Mr Okoye:

I am writing to give formal notice of my resignation from my position as Warehouse Supervisor. In accordance with my contract, my last working day will be Friday 5 June 2026.

I will complete the shift-rota documentation and brief my replacement or a nominated colleague on the outstanding safety audits before that date.

Thank you for the opportunity to work at Halstead.

Sincerely,

Rosa Achebe

Note what is absent: no reason, no destination, no assessment of the job. Formal and short are compatible.

Printing, PDF and filing

If you hand over a printed copy, sign it in ink and keep an unsigned copy for yourself.

If you email it, send a PDF rather than an editable document, so the version in the file is the version you wrote. Both Word and Google Docs export directly: Microsoft documents saving or converting to PDF from the desktop apps. Export rather than print-to-image, because a scanned or flattened page loses the text layer that makes a document searchable and readable by assistive technology, a point Section508.gov makes about accessible PDFs.

Name the file plainly: Resignation-Achebe-2026-05-08.pdf. Somebody has to file it.

Formal does not mean long

The body above is 60 words. The formality lives entirely in the layout, and adding paragraphs does not make a letter more formal, only more exposed.

Related

For the content of each paragraph, see how to write a resignation letter. For copy-ready versions by notice period, see resignation letter templates, and for high-stakes exits see professional resignation letters. For editable files and the fields to change, see the resignation letter template guide.

Our resignation letter generator lays this out for you, and if you are moving on it is worth checking your CV against a job description in the ATS checker first.

Block format, two dates, PDF, one copy kept. You can update your resume before you go.