Letter of Recommendation for coworker is a written reference letter requested in the recruitment processes for a colleague you work with in the same team. In the business world, a strong letter typically closes by clearly defining the relationship (duration and role), highlights demonstrable contributions with measurable results, describes relevant personal qualities (work ethic, communication, leadership), and provides contact information. The letter starts with a suitable address such as “Dear Hiring Manager”, describes the candidate’s fit for the role with concrete examples without sharing confidential/corporate information and ends with “Please feel free to contact me at …”
Table of Contents
How to Write: Structure, Tone, and Content
Divide the body into 3 sections:
Context: “I have worked with [Candidate Name] for [X years] at [Company] as [Your Title].” In one sentence, clarify your working relationship, the projects you collaborated on, and how responsibilities were shared.
Capacity and Outputs: Provide one to two STAR (Situation–Task–Action–Result) examples, such as “led a cross-functional sprint,” “reduced cycle time by 27%,” “delivered a $450K annual cost savings,” or “increased NPS from 48 to 64.”
Soft skills and closing: Briefly state qualities such as collaboration, communication, problem solving, reliability.At the end, provide a personal email and phone number do not use company contact information. The tone should be positive and professional. Aim for 180–250 words.
Letter of Recommendation for a Co-Worker Templates
When is it used? The Value of a Peer Reference
This type of letter is requested in external applications, internal transfers, promotion processes and sometimes in graduate/professional program applications. Peer (colleague) reference; shows the candidate’s daily work discipline, in-team behavior and real production quality. It complements a manager’s reference, with many hiring managers specifically valuing the “day-to-day collaboration” perspective. Check company policy before sharing. In some organizations, references must be submitted through HR or are restricted to “employment verification” only.
What’s in TypeCalendar: 35+ Free Letter of Recommendation for Coworker Templates
TypeCalendar offers 35+ free Recommendation Letter templates for Coworkers organized by US hiring practices. The package includes General Employment, Technology (Engineer/ Product/ Design), Operations/ Finance, Health/ Education, Customer-Facing Roles and Internal Transfer/ Promotion types. Each template includes these placeholders: [Candidate Name], [Company], [Your Name], [Your Title], [Relationship/Years Worked], [Key Projects], [Measured Results (%/$/KPIs)], [Soft Skills], [Contact Email/Phone], and [LinkedIn]. Also included in the folder are a phrase bank with strong U.S.-style sentence patterns, both short and detailed versions, and formats optimized for email and print.
File Types and Editing: U.S. Letter; DOCX, Google Docs, and PDF Formats
All templates are in US Letter size and DOCX / Google Docs / PDF format. The header block is structured as follows: Date, Recipient Name/Title, Company, Address, City, State ZIP. The signature field consists of Typed Name, Title, Company, Personal Email, Phone, LinkedIn components. In DOCX/Docs versions, you can quickly adapt blocks with add/remove logic; you can print PDFs with “Actual Size”. Email subject and inline shortened text examples for remote teams are also included.
Download Now: Create an Effective Coworker Reference in Five Minutes
Access the collection of over 35 free coworker recommendation letter templates in TypeCalendar. Select the format that fits your scenario, complete the relationship and metrics fields, include brief STAR examples, then sign and submit. A measurable and professional reference letter that meets US standards increases the candidate’s chances and strengthens your credibility as a referrer. Download and edit today; create a reference that is clear, convincing and at the level that hiring teams expect in minutes.
