Yes, you should include a cover letter when responding to an RFP—but only when the RFP instructions explicitly allow or request one. A cover letter serves as your proposal's introduction, establishing tone, highlighting key differentiators, and directing evaluators to critical sections. When used strategically, it increases engagement and positions your response for favorable consideration.
When a Cover Letter Makes Sense
The decision hinges on the RFP's submission requirements. Always review the instructions first. If the RFP specifies "submit response document only" or provides a rigid template with no cover letter section, don't add one. Evaluators follow strict protocols, and unsolicited additions can signal you didn't read instructions carefully—a red flag in procurement.
When the RFP permits flexibility or explicitly invites an executive summary or letter of transmittal, a cover letter becomes valuable. Government RFPs, enterprise procurement, and consulting engagements often expect one. Private sector RFPs vary; some welcome them, others ignore them entirely.
What a Strong RFP Cover Letter Contains
A cover letter for RFP responses differs from job application letters. It's brief (one page maximum), professional, and focused on business value rather than personality.
Start with a clear statement of intent: "[Company name] submits this proposal in response to RFP [number/title] issued [date]." This confirms you're responding to the correct solicitation.
Next, highlight 2–3 key differentiators that address the buyer's stated pain points. Reference specific requirements from the RFP to show you've done your homework. For example: "Your requirement for 24/7 support aligns with our managed services model, which has achieved 99.9% uptime for similar clients."
Include a brief statement of commitment and next steps. Mention who the buyer should contact for questions and provide contact details. Close with confidence but not arrogance.
How Cover Letters Impact Evaluation
Most RFP evaluations use scoring rubrics tied to specific requirements. A cover letter typically doesn't earn points directly—the proposal content does. However, it influences perception. A well-written cover letter signals professionalism and attention to detail. A poorly written one (typos, generic language, wrong company name) damages credibility before evaluators read your actual response.
Think of it as a gatekeeper. If your cover letter is sloppy, evaluators may scrutinize your proposal more critically. If it's sharp and relevant, they approach your response with goodwill.
In competitive situations where multiple proposals score similarly, the cover letter can tip the balance. It's your chance to make a human connection and reinforce why your solution matters beyond the checklist.
Common Mistakes to Avoid
Don't use a generic cover letter template. Customize it for each RFP. Buyers can tell when you've recycled language, and it undermines your credibility.
Avoid overselling. The cover letter isn't a sales pitch; it's a bridge to your proposal. Let the detailed response prove your capabilities.
Don't repeat the proposal verbatim. The cover letter should complement, not duplicate, your response. Summarize key points and direct readers to relevant sections.
Most teams get the length wrong. One page is the standard. Two pages signals you couldn't prioritize. Half a page feels incomplete.
Cover Letter vs. Executive Summary
These aren't the same thing. A cover letter is a transmittal document—it introduces the proposal. An executive summary is part of the proposal itself and provides a high-level overview of your solution, approach, and value proposition.
Some RFPs request both. The cover letter goes on top; the executive summary appears at the start of the proposal document. Others ask for one or the other. Read the instructions carefully.
Format and Submission Best Practices
Use professional business letterhead with your company name, address, and contact information. Include the date and the buyer's contact details (name, title, organization, address).
Keep the tone formal but conversational. Avoid corporate jargon and buzzwords. Write as if you're speaking to a colleague who understands your industry.
Proofread ruthlessly. Typos, grammatical errors, and formatting inconsistencies damage your credibility. Have someone outside your proposal team review it.
If submitting electronically, save the cover letter as a separate PDF or include it as the first page of your proposal document, depending on the RFP's submission format. Check whether the buyer wants it bound with the proposal or submitted separately.
When to Skip the Cover Letter
If the RFP explicitly states "no cover letters," don't include one. Some government agencies and large enterprises have strict formatting rules to ensure fair evaluation. Adding a cover letter violates those rules and may result in your proposal being rejected outright.
If you're responding to an RFI (Request for Information) rather than an RFP, a cover letter is typically unnecessary. RFIs are exploratory; they don't require formal proposal structure.
For time-sensitive RFPs with tight deadlines, prioritize getting your proposal content right. A cover letter is secondary to a complete, accurate response.
Real-World Example
A software vendor responding to an enterprise RFP for customer relationship management (CRM) implementation might open with: "ABC Software submits this proposal for the XYZ Corporation CRM modernization initiative (RFP-2024-156). We've designed our response around your three core requirements: seamless integration with legacy systems, user adoption within 90 days, and post-implementation support through year two."
Then highlight one differentiator: "Our phased implementation approach has reduced typical deployment timelines by 40% while maintaining data integrity—critical for your 500-user rollout."
Close with contact information and a statement of readiness. That's it. One page. Professional. Relevant.
Key Takeaways
Include a cover letter when the RFP permits it and your response benefits from an introduction. Keep it to one page, customize it for each opportunity, and focus on business value rather than generic praise. Use it to highlight key differentiators and direct evaluators to critical sections of your proposal. Always follow the RFP's submission instructions exactly—if they say no cover letter, don't include one. A well-crafted cover letter won't win the deal alone, but a sloppy one can lose it.