A letter of recommendation is a professional endorsement written by someone who worked closely with a candidate: a manager, supervisor, colleague, or client. It confirms the working relationship, highlights specific strengths, and backs them with at least one concrete achievement.
The difference between a letter that helps and one that gets skimmed is specificity: recruiters discount generic praise and remember measurable results.
The structure that works
- Opening: who you recommend and for what, stated plainly in the first sentence
- Context: how long and in what capacity you worked together, which establishes your credibility
- Strengths: two or three specific qualities, not a string of adjectives
- Proof: one concrete achievement with a number or an outcome attached
- Close: an unambiguous endorsement and, ideally, an offer to answer questions
This template walks you through exactly those five parts and assembles them into a clean, one-page business letter.
Recommendation letter vs employment verification
They answer different questions. An employment verification letter confirms facts: dates, title, salary. A letter of recommendation adds judgment: how well the person performed and whether you endorse them. Many employers, wary of liability, restrict managers to verification-only responses through HR; if you write a personal recommendation, make clear you write in your individual capacity if your company has such a policy.
Only say what you can stand behind
Write honestly and stick to your direct observations. A recommendation you cannot back up in a reference call helps no one, and knowingly false statements can create legal exposure for the writer.
Tips that strengthen the letter
- Name the target role when you know it: tailored letters outperform generic ones
- Quantify the achievement: percentages, dollar amounts, and timelines are remembered
- Keep it to one page: hiring managers read dozens of these
- Sign with your title and offer contact details when you are comfortable taking calls
- Date the letter: recent letters carry more weight than old ones
Frequently asked questions
Who should write a letter of recommendation?
Someone with direct, sustained knowledge of the candidate's work: a direct manager carries the most weight, followed by a department supervisor, a senior colleague, or a client. The relationship is stated in the letter so the reader can weigh it.
How long should the letter be?
One page. Three to five paragraphs covering the relationship, the strengths, one concrete achievement, and a clear endorsement. Longer letters dilute the message.
Should it be addressed to a specific person?
When you know the recipient, yes: a named recipient reads as more considered. When the candidate will use the letter for multiple applications, 'To whom it may concern' is standard and this template supports both.
Can an employer refuse to write one?
Yes. No law obliges an employer or colleague to write a recommendation, and many companies limit official responses to employment verification. Writing one is a personal, voluntary act.
Is a recommendation letter legally binding?
No, it is an opinion, not a contract. That said, write truthfully: knowingly false statements that cause harm can expose the writer to defamation or misrepresentation claims, which is why letters should stick to honest, first-hand observations.