A reference letter is a short, signed statement from someone who knows a person's work or character, written to help them get a job, a place in a program, a rental or a scholarship. A good one names your relationship, describes two or three specific strengths with real examples, and ends with a clear, honest endorsement. Keep it to one page.
Before you write: say yes only if you can help
The most useful thing a referee can do happens before the first sentence. Ask yourself whether you know this person's work well enough to describe it with examples. If the honest answer is "not really," a polite no helps them more than a vague letter.
If you agree, ask the person for:
- The job description, program page or purpose of the letter
- The deadline and how to submit (email, upload portal, sealed envelope)
- Their current resume or CV
- Two or three things they hope you can speak to
- The name and title of the recipient, if known
That last point matters. A letter addressed to a real person and tailored to a specific role reads as far more credible than a generic one.
What to include in a reference letter
1. Your relationship and how long you have known them
Open by saying who you are, how you know the candidate, and for how long. "I supervised Maria for two years on our customer support team" gives the reader a frame for everything that follows.
2. Two or three specific strengths
Pick the qualities that matter most for the role they are applying for. A lab assistant needs precision and reliability; a sales role needs persistence and ease with people. Do not list ten adjectives. Choose a few and prove them.
3. Evidence for each strength
This is where most letters fall flat. "She is a great communicator" is easy to write and easy to ignore. "She rewrote our onboarding guide, and new hires stopped asking the same five questions in their first week" shows it.
Good evidence is specific: a project, a moment, a result you saw. You do not need numbers you cannot verify. Describe what happened.
4. A clear recommendation
Close with a direct endorsement that fits your actual view: "I recommend him without reservation" or "I would hire her again." Then offer your contact details for follow-up questions.
How to format it
- Use letterhead or a professional email signature if you have one.
- Date at the top, then the recipient's name and organization if known.
- "Dear [Name]" when you have a name; "To Whom It May Concern" only for general references.
- Three to five paragraphs, single-spaced, one page.
- Sign with your full name, title, organization, email and phone number.
If the letter is uploaded to a portal, save it as a PDF so the formatting holds.
Three reference letter examples
These examples are written for different situations. Replace every placeholder and swap in details from your own experience with the candidate.
Employment reference from a former manager
Dear [Hiring Manager Name],
I am pleased to recommend [Candidate Name] for the Operations Coordinator role at [Company Name]. I was [Candidate Name]'s direct manager at [Your Company] for just over two years, from [Start Date] to [End Date], while [he/she/they] worked as a logistics assistant on my team.
The quality I relied on most was [Candidate Name]'s calm under pressure. During a warehouse system migration, our order tracking was unreliable for nearly a week. [Candidate Name] built a simple shared spreadsheet, called the largest customers each morning with updates, and kept the team from duplicating work. We came out of that week with no lost orders and fewer complaints than I expected.
[Candidate Name] also improves the systems around [him/her/them]. Without being asked, [he/she/they] documented our returns process step by step, which made training two new hires noticeably faster.
I would gladly work with [Candidate Name] again and recommend [him/her/them] without reservation. Please contact me at [Email] or [Phone Number] if you have questions.
Sincerely,
[Your Name]
[Your Title], [Your Company]
Academic reference from a teacher
Dear Scholarship Committee,
I have taught [Student Name] in two courses at [School Name]: Introductory Chemistry last year and Advanced Placement Chemistry this year. In both classes [he/she/they] ranked among the most curious and well-prepared students I have taught.
What sets [Student Name] apart is how [he/she/they] handle being wrong. In a lab on reaction rates, [his/her/their] group's results contradicted the textbook. Instead of fudging the numbers, [Student Name] led the group in rechecking their method, found a temperature control problem, and wrote it up honestly in the report. That kind of integrity is rare at any age.
[Student Name] also tutors younger students after school every Tuesday. I have watched [him/her/them] explain the same concept three different ways until it clicks, with no sign of impatience.
I am confident [Student Name] will make excellent use of this scholarship, and I recommend [him/her/them] wholeheartedly. I can be reached at [Email] for any questions.
Respectfully,
[Your Name]
Chemistry Teacher, [School Name]
Character reference for a rental application
To Whom It May Concern,
I am writing to support [Applicant Name]'s rental application. I have known [Applicant Name] for six years, first as a neighbor in [Building or Area] and later as a fellow volunteer at the [Organization Name] food pantry.
As a neighbor, [Applicant Name] was considerate and dependable. [He/She/They] kept the shared hallway tidy, gave neighbors notice before having guests over late, and once watered my plants for three weeks while I was traveling. At the pantry, [he/she/they] have shown up for the Saturday morning shift almost every week and handle donations and records carefully.
I believe [Applicant Name] would be a responsible, respectful tenant. Please feel free to contact me at [Phone Number] or [Email].
Kind regards,
[Your Name]
[Your Occupation]
Mistakes that weaken a reference letter
Generic praise. "Hard-working, team player, detail-oriented" could describe anyone. One real story beats a string of adjectives.
Faint praise. Phrases like "did what was asked" or "was usually on time" read as warnings to experienced readers. If that is the best you can honestly say, consider declining.
Inventing details. Do not guess at dates, titles or results. A recruiter who checks and finds an error will doubt the rest of the letter.
Writing about yourself. One sentence on your role is enough. The letter is about the candidate.
Missing contact details. Readers sometimes want a quick call to confirm the letter is genuine. Make that easy.
If you use AI to help draft
A drafting tool can give you a clean structure and help you find words when you are staring at a blank page. Treat the output as a starting point. Replace any general statement with something you actually saw, cut praise you would not say out loud, and read the final version as the candidate's future employer would. Your name is on it.
Key takeaways
- Agree only if you can describe the person's work with specific examples.
- Ask for the job or program details and tailor the letter to them.
- Pick two or three strengths and support each with a real story.
- End with a clear endorsement and your contact details.
- Keep it to one honest page.