Cover letter: the complete guide to writing one in 2026

A cover letter still carries weight wherever the role involves judgement, contact or responsibility — and it is expected by default in most of Europe. Its purpose is not to repeat the CV: it is to connect your track record to one specific employer, and to show the judgement the CV cannot show. Where the CV answers what have you done, the letter answers why here, why you.

This guide gives you a paragraph-by-paragraph structure that works for every sector, then the tone rules and the mistakes that turn a good letter into a template the recruiter will skim.

The four-paragraph structure

A strong letter fits on one page and follows a visible plan. Four paragraphs, each with one job:

1. 1The hook: why this company, this role, this moment. One concrete fact about the employer — a project, a product, an expansion — not a compliment.
2. 2The match: your two or three strongest assets for this role, each with one quantified proof drawn from the CV.
3. 3The fit: how you work, in one or two lines of personality backed by a fact — the part the CV cannot carry.
4. 4The close: a clear, confident line about next steps. Not I hope to hear from you, but I would welcome the chance to discuss how I can contribute to X.

Your warehouse automation programme caught my attention: I led a comparable one, moving a 6,000 m² site to voice picking with a 22% productivity gain in four months. I would be glad to walk you through what transferred to a different site.

That example does three things at once: it proves you researched the employer, it states a relevant achievement with a number, and it proposes a next step. This is the whole letter in miniature.

The opening line: avoiding the templates

Recruiters read I am writing to apply for the position advertised on your website dozens of times a week. The line wastes the most valuable real estate of the letter. Replace it with the hook: a fact about them, connected to a fact about you.

• Weak: I am applying for the logistics coordinator role advertised on LinkedIn.
• Strong: When your Q3 press release announced the opening of the Lyon hub, I checked every detail — I ran the same hub type for a competitor for three years.
• Weak: I have always been passionate about your sector.
• Strong: Your move to ISO 45001 certification is exactly the transition I piloted in my current role, and the reason I am applying.

The rule behind the examples: the first line must be true only of this application. If you can swap the company name and send the letter elsewhere unchanged, it is not finished.

Tone: professional, concrete, human

Write as you would speak in a professional conversation. Short sentences. Verbs of action. One number per claim. Avoid both extremes: bureaucratic phrasing that sounds copy-pasted, and forced originality — humour is a coin toss you do not control. The letter's tone should match the sector: formal for banking and public service, plainer for startups and trades.

Length, format and sending

One page, 250 to 350 words, three to four paragraphs. Same font family as your CV, PDF format, named clearly. Address a named person when you can find one — it measurably raises reply rates — and keep the salutation safe where you cannot. Send both documents together: the CV and the letter are one application, each covering what the other cannot.

For structure and spelling, national guidance is a good benchmark — for example prospects.ac.uk in the UK or your national employment service elsewhere in Europe. And when you are ready to send, HightCV keeps your CV and its personal /@link in sync, so the document the recruiter opens always matches the letter it accompanies.