Professional references on a resume: who to ask, how many, and how to list them

What a reference is

A reference is a person an employer can contact to confirm what your resume says and to hear how you work. Employers usually check references late, once they are close to an offer. The Career Development Center at the Massachusetts College of Pharmacy and Health Sciences (MCPHS) puts it this way: references “are generally requested and checked after a successful interview and just before offering you a position.”

There are two kinds:

• Professional references: people who have seen your work. A current or past manager or supervisor, a colleague, a client, or for students a professor, internship supervisor or project guide. These are the ones employers want.
• Personal (character) references: people who know you outside work, such as a coach, a teacher from a club, or someone you volunteered for. Use one only when an employer asks for a character reference, or when you have no work history yet.

A reference is not the same as a reference letter (a letter written about you in advance) or an experience letter from a past employer, which confirms your dates and role.

Should you put references on your resume?

Usually not. Canada's Job Bank advises: “Keep references on a separate sheet and provide them only when they are specifically requested.” There are good reasons:

• Your resume has more useful things to say in the space.
• You keep control of when your references are contacted, and can warn them first.
• Their phone numbers and emails are not passed around with every copy of your resume.

“References available on request”? The UK's National Careers Service says you can add that line to a CV. It is optional: employers assume it, so leave it out if you need the space. Put real references on the resume only if the job ad asks for them there.

Who to ask for a reference

MCPHS lists the people who make good professional references: supervisors, past or present; colleagues; faculty mentors; and clinical or internship instructors. It is just as clear about who does not: “References should NOT be family, friends, or peers.”

The best reference is the person who knows your work best, not the one with the most senior title. A team lead who saw you every day beats a director who met you twice.

How many references to have

Three is the usual minimum and five the usual maximum. MCPHS notes that employers “often” ask for “3-5 people you have worked with”. Give exactly the number the employer asks for. Keep one or two extra names ready, in case someone can't be reached.

How to ask someone to be your reference

1. Ask before you use their name. MCPHS: “Always ask permission from your references BEFORE you use their names and give them ample notice (2-3 weeks).”
2. Ask in a way that lets them say no. “Would you be comfortable being a reference for me?” A reluctant reference is worse than none.
3. Send them what they need: your current resume, the job ad, and the two or three things you would like them to be able to speak to (MCPHS recommends the resume, the position description and the skills relevant to the role).
4. Tell them when to expect a call, and thank them afterwards, whatever the outcome.

An illustrative message:

“Hi Nina, I'm applying for a data analyst role at a logistics company and I'm in the final round. Would you be comfortable being one of my references? You supervised my dashboard work during my internship, which is the part they care most about. I've attached the job ad and my resume. They may call in the next two weeks. Thank you either way.”

References template: how to make a reference page, step by step

1. Use the same header as your resume: your name and contact details, in the same font and layout (MCPHS recommends formatting the heading the same as on your resume). Title the page “References”.
2. For each reference, give: full name; job title; employer; your relationship (how they know you and for how long); phone; email.
3. Order them by relevance, the person who knows your most relevant work first.
4. Keep it to one page, and check every phone number and email with the person before you send it.
5. Save it as a PDF, separately from your resume, and send it when asked. Bring a printed copy to interviews too, as MCPHS suggests.

Resume references example: a professional references template

Note what is not there: no home addresses, no family members, and no reference the candidate hasn't asked. Each “Relationship” line tells the employer what that person can speak to, so they know what to ask.

Reference sheet vs letter of reference

A reference sheet is the one-page list of your referees that you hand over when an employer asks for references for a job; the steps to build it are under “references template” above. A letter of reference is something else: a written recommendation that one person signs about you, such as a professional reference letter from a former manager or a personal reference from a teacher or community leader.

Do you put references on a resume? Not on the resume itself: keep the sheet separate, and at most write that references are available upon request if the application has space. A sample reference letter from a referee covers who they are, how long they have known you, two things you did well with a number if they have one, and an offer to take a call.

When an application asks for references

• Online forms often have reference fields. Fill them in only if they are required at that stage; otherwise, if the form allows, write that references are available at the offer stage.
• In the UK, CVs often end with the line “References available on request”; see the UK CV format.
• In India, your previous employers' relieving letter and experience letter do part of the same job: they confirm your dates and role. Keep them ready alongside your reference page.
• Academic and government jobs may ask for references or referee letters with the application itself. Follow the posting's instructions exactly; an academic CV often lists referees at the end.

Sources

Checked on 4 October 2026.

• Job Bank, Government of Canada: How to write a good resume
• MCPHS Career Development Center: Requesting references for internships, employment, and graduate school
• National Careers Service (UK): CV sections