How to write an RFP rejection letter

Every vendor proposal represents hours of dedicated work by teams of people. Vendors find it hard enough to wait for decisions; radio silence feels even worse. Clear and effective business communication fosters strong business relationships and enhances supplier relationship management.

Vendors appreciate quick rejections more than prolonged uncertainty. They invest their time and resources to respond to RFP letters, and they deserve thoughtful and professional rejection letters. A well-crafted vendor rejection letter helps them move forward and explore other future opportunities.

Rejection letters help you stay transparent, manage vendor relationships, and keep proper documentation. These letters are often referred to by various names, including bid rejection letters, non-award notices, unsuccessful bidder letters, business rejection letters, or vendor rejection letters. They all serve one vital purpose.

This guide will show you how to craft RFP rejection letters that preserve professional relationships while conveying your decision clearly. You’ll find rejection letter templates, examples, and proven practices to make this challenging task easier and more effective.

What is an RFP rejection letter, and why does it matter

An RFP rejection letter tells vendors their RFP response didn’t cut your selection process. This isn’t just paperwork; it shows you value the time and effort vendors put into their proposals.

Definition and purpose of a vendor rejection letter

The main goal of an RFP rejection letter (also known as a bid rejection letter, non-award notice, unsuccessful bidder letter, or vendor rejection letter) is to deliver your decision clearly and professionally. The procurement manager or lead project manager usually handles these letters.

Companies used to mail physical letters, but now many send these notifications by email or through RFP management software. Whatever the delivery method, these letters serve several key purposes:

• Vendors can pursue other opportunities
• Shows professional courtesy
• Documents your procurement decisions
• Keeps doors open with potential future partners
• Brings the bidding process to a close

A clear answer helps vendors move forward and focus their efforts elsewhere.

Why is timely communication important

The timing of your proposal rejection letter matters. You should wait for the contract with your selected vendor to be finalized before notifying other bidders. Once that’s done, send those rejection letters right away.

Quick responses show you respect vendors’ time and effort. Delays can leave vendors feeling frustrated and uncertain. Clear and prompt communication sets the right expectations.

Impact on vendor relationships and transparency

Professional rejection letters are crucial because they affect vendor relationships. A vendor who isn’t right for one project might be perfect for something else down the road. A polite RFP rejection letter keeps future possibilities open.

These communications also help you build networks with vendor salespeople who might:

• Keep trying to win your business
• Update you about savings
• Share innovative solutions
• Keep you in the loop about industry trends

Being transparent during the procurement process makes vendor selection fair and informed, which protects your organization. Poorly written RFP rejection letters can lead to fewer bids, bad reviews, and even misunderstandings during contract negotiations.

Types of RFP rejection letters

Your situation determines which type of sample rejection letter works best. Each one plays a specific role in procurement and helps you communicate clearly with vendors.

Unsuccessful bidder letter

You’ll send unsuccessful bidder letters more than any other type of business rejection letter. This simple notification tells vendors they didn’t cut after your evaluation process ends. Most companies send these by email to acknowledge the proposal submission, thank vendors for participating, and let them know they weren’t selected.

Noncompliance rejection letter

A noncompliance rejection letter goes out when vendors don’t follow your RFP guidelines or submission guidelines. This happens when a proposal:

• Misses required elements
• Ignores proposal format requirements
• Contains unrelated information
• Doesn’t meet core requirements

If there’s still time in your procurement process, you might let the vendor try again with a compliant proposal.

Price negotiation rejection letter

A price negotiation rejection letter deals with proposals where cost is the biggest problem.

You might need this when:

• Vendor fees are too high for your budget requirements
• You can’t reach an acceptable price point
• Their costs are far above what others charge

This letter can either reject the proposal outright or ask if they’ll offer better pricing. It keeps relationships open for future projects.

Rescinding the request rejection letter

Sometimes plans change during the procurement process, and you need to cancel everything. You might send this type when:

• Your company’s plans shift
• No proposals fit what you need
• The project gets delayed
• Your requirements change too much

This letter cancels the whole RFP process instead of rejecting specific vendors.

Notification of award rejection letter

The award notification approach tells vendors someone else won without explaining why they lost. This works well when:

• Time is tight for personal rejections
• You want everyone to know who won
• You need to handle multiple bidders quickly
• Your organization’s rules require standard communications

Bid rejection letter

A bid rejection letter is typically sent when an organization has received multiple bids for a project or contract but has decided not to award it to a particular bidder. This letter should:

• Acknowledge the proposal submission and thank the bidder for their effort.
• Communicate the noncompliance rejection or decision not to proceed.
• Optionally reference scoring criteria or price negotiation rejection factors.
• Maintain professionalism to encourage participation in future opportunities.

Bid rejection letters are common in public tenders, government contracts, and competitive vendor selection processes where transparency and fairness are critical.

Proposal rejection letter

A proposal rejection letter applies more broadly to any formal submission, whether in response to an RFP, proposal format, or business proposal. It should follow a clear structure:

• Express appreciation for the vendor’s submission.
• State the decision directly and respectfully.
• Provide optional feedback tied to the procurement process or evaluation criteria for RFP.
• Leave the door open for future opportunities.

These letters help maintain positive vendor relationships, especially when vendors may be well-suited for other projects.

Grant rejection letter

A grant rejection letter is sent to applicants whose funding request will not be supported. Since grants often require significant effort to prepare, this letter should be empathetic and appreciative. Best practices include:

• Thanking the applicant for their detailed proposal submission.
• Clearly stating the decision without ambiguity.
• Briefly outlining why the application was not selected, referencing scoring criteria or limited resources.
• Encouraging future applications if relevant.

In nonprofit or public sector contexts, these letters also uphold trust and transparency between the organization and the applicant community.

Business rejection letter

A business rejection letter covers scenarios outside formal RFPs or bids, such as declining a vendor proposal, turning down a partnership offer, or refusing a contract negotiation request. 

These letters should:

• Be short, polite, and appreciative of the opportunity presented.
• Communicate the decision and its rationale.
• Maintain a tone that preserves networking opportunities and business relationships.

Even in informal contexts, a well-written rejection letter strengthens supplier relationship management and leaves a positive impression for potential collaboration.

When and who should send the rejection letter

Ideal timing to send your rejection letter

The safest approach is to wait until you sign the contract with your chosen vendor before you notify others who weren’t successful.

In some cases:

• Send noncompliance rejection or price negotiation rejection letters right away so vendors can revise.
• Let vendors know early if they’re not a good fit for your project.
• Wait to notify strong candidates until you’ve picked your final vendor and sent the award notification.

Who should write your rejection letter

These people usually write RFP rejection letters:

• Procurement managers
• RFP coordinators
• Lead project managers who oversee evaluations

Using email vs. formal letter vs. RFP software

Your delivery method shapes how vendors receive your message:

• Email – Fastest and easiest way to document communication.
• Formal rejection letter template – Adds formality, especially for high-value contracts.
• RFP management platform – Helps organize all procurement decisions and speed up notifications.

How to write a rejection letter for a proposal

Crafting a clear and respectful proposal rejection letter is an essential part of good business communication. Whether it’s an RFP rejection letter, a bid rejection letter, or a vendor rejection letter, the goal is to decline the offer professionally while preserving a positive relationship for future opportunities.

When done right, a rejection letter template can save time, maintain vendor relationships, and reinforce your credibility in the procurement process. Here’s a step-by-step approach:

1. Start with appreciation in your rejection letter

Open your rejection letter by addressing the vendor or bidder politely. Thank them for their submission, acknowledging the time and effort they invested in preparing their vendor proposal or grant proposal. This not only sets a professional tone but also demonstrates respect for the supplier relationship management process.

Example:

“We sincerely appreciate the effort and detail you provided in your proposal submission for [Project Name]. Your expertise and interest in collaborating with us are valued.”

2. Clearly state the decision in your rejection letter

Be transparent and direct in your RFP letter of rejection, avoiding vague wording that leaves room for confusion. State that, after careful review against RFP guidelines and scoring criteria, their proposal will not be moving forward.

Example:

“After reviewing all submissions according to our evaluation criteria, we have decided not to proceed with your proposal for this project.”

3. Optionally, explain the reason in your rejection letter

While not always required, including a brief explanation can offer constructive feedback. This might reference budget requirements, noncompliance rejection, price negotiation rejection, or lack of alignment with project goals. Keep the explanation factual and concise to avoid disputes.

Example:

“Our decision was based on the fact that another vendor’s proposal more closely met our technical requirements and offered better alignment with our budget.”

4. Invite future participation in your rejection letter

A business rejection letter shouldn’t close the door completely. Encourage the recipient to participate in future opportunities or upcoming vendor selection processes. This keeps the networking opportunity open and strengthens long-term business relationships.

Example:

“We encourage you to participate in future RFPs and look forward to the possibility of working together.”

5. Maintain a professional tone in your rejection letter

Regardless of the reason for rejection, whether it’s a non-award notice, unsuccessful bidder letter, or noncompliance rejection, your tone should remain respectful, neutral, and constructive. Avoid negative language, personal judgments, or overly detailed criticism.

A well-structured sample rejection letter not only communicates your decision effectively but also protects your organization’s reputation in the procurement decision process.

Best practices and templates to use in your rejection letter

• Keep it short and clear
• Use a rejection letter template for consistency
• Avoid negative or critical language
• Provide constructive feedback only when appropriate
• Include contact details for follow-up

Good rejection letter templates usually include:

• Appreciation for effort
• Clear statement of rejection
• Optional brief explanation
• Invitation for future participation
• Professional closing

Example: full-length RFP rejection letter template

Subject: RFP Rejection Letter – [Project Name / RFP Reference Number]

Dear [Vendor Name],

We appreciate the time, effort, and expertise your team invested in preparing and submitting your vendor proposal for our recent RFP titled [Project Name]. Your submission was reviewed thoroughly by our procurement manager and evaluation team, using our defined scoring criteria as part of the formal procurement process.

After careful consideration, we regret to inform you that your proposal was not selected for award. While your solution demonstrated several strengths, the selected vendor was chosen based on a closer alignment with our budget requirements, project timelines, and specific technical needs outlined in the RFP guidelines.

We understand that receiving an unsuccessful bidder letter is never easy, and we want to assure you that this decision does not reflect on your overall capabilities. This outcome was determined strictly based on proposal evaluation criteria, competitive pricing analysis, and our organizational priorities at this time.

For transparency, some contributing factors in this decision included:

• Alignment with mandatory submission guidelines
• Fit with project requirements and scope
• Competitive positioning during price negotiation
• Compliance with all procurement decisions and technical specifications

We value the professional relationship we’ve built with your organization and look forward to the possibility of collaborating in the future. We encourage you to participate in upcoming RFP opportunities and to stay connected with our team for future opportunities that may be a better fit for your expertise.

Thank you again for your time, effort, and interest in working with us.

Sincerely,

[Your Name]

[Your Title]

[Organization Name]

[Contact Information]

Looking to respond to a vendor over email? Here are 5 RFP response email templates you can choose from. 

Conclusion

Professional relationships in the procurement process depend heavily on how you write RFP rejection letters. A clear, respectful sample rejection letter gives closure, documents procurement decisions, and keeps vendor relationships strong.

Whether you’re sending a bid rejection letter, business rejection letter, or vendor rejection letter, following best practices will help you communicate clearly and maintain your reputation as an organization that vendors want to work with.

Suggested reads: 

1. RFP examples: From draft to winning bid
2. RFP questions to ask vendors
3. RFI vs RFP: Which procurement document do you need?