How to Write a Reference Letter: Structure, Evidence and Two Full Samples
This article is for the person writing the reference: a manager asked to vouch for a team member, or a teacher or professor asked to recommend a student. It covers what to ask the candidate for, how the letter is structured, how to replace praise with evidence, two full sample letters you can adapt, and when it is better to say no.
Before you write: what to ask the candidate for
A useful reference answers the questions the reader actually has about this person for this role or programme. You cannot do that from memory alone. Before you start, ask the candidate to send you:
- The job description or programme page — so you know which qualities matter to the reader.
- Their current resume — to check dates, titles and the projects you worked on together.
- Two or three things they would like you to mention, with the details (project names, results, dates) that you may have forgotten.
- The deadline and the format — a letter on letterhead, an email, an upload to a portal, or a form with fixed questions.
- Who it goes to — a named person, a university portal, or "To whom it may concern".
The structure that works
Most strong references follow the same five-part shape. The length is usually one page: long enough for two or three concrete examples, short enough to be read in full.
| Part | What it does | Typical length |
|---|---|---|
| Your relationship | Who you are, how you know the candidate, for how long and in what capacity | 2–3 sentences |
| Overall recommendation | A clear statement of what you recommend them for | 1–2 sentences |
| Evidence | Two or three specific examples tied to the role or programme | 2–3 short paragraphs |
| Comparison or context | How they compare with others you have managed or taught, if you can say so honestly | 1–2 sentences |
| Close | Your recommendation restated and your contact details for follow-up | 2 sentences |
The relationship paragraph matters more than people expect. "I managed Arjun directly for 22 months as his reporting manager" gives your opinion weight; "I have known Arjun for some time" does not.
Replacing praise with evidence
Readers discount adjectives because every reference uses them. What they cannot discount is a specific thing the candidate did that you saw. For each quality you want to mention, write down one situation, what the candidate did, and what came of it.
Manager writing for a team member
Neha is hardworking, dedicated and an excellent team player.
When our largest client moved its launch forward by three weeks, Neha re-planned the testing schedule, took over two colleagues' regression suites while they were on leave, and we shipped on the new date with no critical defects reported in the first month.
Professor writing for a student
Rohan is one of the brightest students I have taught and has a passion for research.
In my final-year course on Embedded Systems, Rohan's term project — a low-cost soil-moisture logger — was the only one in a class of 64 to include a battery-life analysis. He went on to present it at our department's project exhibition and answered questions from visiting faculty with confidence.
A class size or a ranking is useful context, but only state one you can stand behind from your own records.
Match the examples to what the reader is assessing. For a job, that is usually reliability, skill in the core tasks, and how the person works with others. For a master's or PhD programme, it is academic ability, independence and readiness for research — see our SOP guide for what admissions readers look for alongside the reference.
Sample 1: manager reference for an employee
Dear Ms Iyer,
I am writing to recommend Neha Kulkarni for the Senior QA Engineer role at your company. I was Neha's reporting manager at Brightpath Software from June 2023 to September 2025, where she worked as a QA Engineer in my team of six.
I recommend her without reservation for a senior testing role.
Neha is the person I relied on when a release was at risk. When our largest client moved its launch forward by three weeks, she re-planned the test schedule, took over two colleagues' regression suites during their leave, and we shipped on the new date with no critical defects reported in the first month.
She also improved how the team works. She noticed that the same manual checks were repeated every sprint, automated the eleven most common ones, and wrote a short guide so others could maintain them. That reduced our regression cycle from three days to about one and a half.
Neha asks good questions early and raises problems before they become urgent. Of the testers I have managed, she is among the two or three I would most want to work with again.
I am happy to speak with you if that would help. I can be reached at 98XXX XXXXX or at this email address.
Yours sincerely,
Vikram Desai
Engineering Manager, Brightpath Software
Notice what the letter does not include: Neha's salary, her reason for leaving, personal details, or anything the referee did not see directly.
Sample 2: professor recommendation for a student
I am pleased to recommend Rohan Mehta for your MSc programme. I am an Associate Professor in the Department of Electronics at [College name], and I taught Rohan in two courses — Microcontrollers (third year) and Embedded Systems (final year) — and supervised his final-year project.
Rohan is a capable and unusually thorough student, and I believe he is well prepared for a demanding master's programme.
In Embedded Systems, his term project, a low-cost soil-moisture logger, was the only one in a class of 64 to include a battery-life analysis; he tested three sleep-mode configurations and documented why he chose the one he did. He presented the project at our department exhibition and handled detailed questions from visiting faculty well.
As his project supervisor, I saw how he deals with setbacks. When the sensor readings drifted in humid conditions, he did not simply report the problem; he read two papers on sensor calibration, proposed a correction, and tested it over a fortnight before our review.
Rohan would benefit from more experience writing formal reports, which I expect a master's programme will develop. His technical ability and persistence are well above those of most students I have taught in recent years.
Please contact me at the address below if you need any further information.
Sincerely,
Dr. Anjali Rao
Associate Professor, Department of Electronics
[College name, email, phone]
The single area for growth is deliberate. A letter with no reservation at all can read as uncritical; one honest, minor development point makes the praise more believable. Leave it out if the form does not invite it.
Mistakes, and when to decline
- Writing the same letter for every role. If the candidate is applying for both a data role and a sales role, the examples should be different.
- Letting the candidate write it for you to sign. It is common practice in some places, but readers often recognise it, and you are the one vouching for every sentence. If they send a draft, use it for facts and write the letter yourself.
- Mentioning protected or private matters — health, family situation, religion, age — even positively. They are not relevant to the decision.
- Overstating your knowledge. If you only taught one course, say so; do not comment on research ability you never saw.
- Missing the deadline. For university applications, a late reference can hold up the whole file. Ask for the deadline and put it in your calendar.
When to say no. Decline politely if you do not know the person well enough to give examples, or if you could not recommend them honestly. A short, lukewarm letter can do more harm than no letter, and it is kinder to let them ask someone else.
Thank you for thinking of me. I worked with you for only a few weeks on the onboarding project, and I don't think I could write the detailed reference this role deserves. Someone who managed your work on the vendor migration would be able to give much stronger examples.
I hope the application goes well.
Best,
Priya
Key takeaways
- Ask the candidate for the job description, their resume and the points they hope you will cover before you write.
- Open with your relationship to the candidate: role, duration and capacity.
- Replace each adjective with one situation you saw, what they did, and the result.
- If the employer or university sends a form, answer its questions rather than attaching a general letter.
- Decline politely if you cannot give specific, honest examples.
Put this into practice
- Applying for a master's or PhD? Pair a strong recommendation with a clear statement — start with our SOP guide.
- Asking for a reference for a job? Make sure your resume is current first; the free Clean Professional template is a quick place to start.
Frequently asked questions
Usually one page, or about 300–500 words. That is enough for two or three concrete examples. An academic recommendation for a research programme can be longer if you supervised the student closely and have more to say.
No. An experience or relieving letter is issued by the employer's HR team and confirms facts such as dates and designation. A reference letter is a personal recommendation from someone who knows the person's work. Our article on writing a resignation letter covers relieving letters.
Only if you can be fair and factual. You can limit the letter to what you observed directly and keep it short, or decline. Avoid writing anything you could not support with records.
For job references, it is common to share it. Many university systems ask the applicant whether they waive the right to see the letter; readers often give more weight to confidential letters, so follow the system's instructions.