A grant cover letter is a short supporting document that introduces the application, identifies the request and highlights any information the donor expects outside the main proposal. It should support the application—not repeat the entire proposal.
Not every grant requires a cover letter. Some application systems do not allow one. Others use it for specific administrative information. The donor’s current instructions always override generic templates.
When should you include a cover letter?
Include one when the donor explicitly asks for it, when the application package provides a cover-letter field, or when the funder’s process clearly permits a brief introductory letter. Do not add an unsolicited cover letter to a tightly controlled portal if the guidelines do not request one.
In some grant systems, a cover letter has a very specific administrative role. The U.S. National Institutes of Health, for example, requires applicants to include certain information in a cover letter when submitting allowable post-submission video material. That illustrates why applicants should treat the donor’s application guide—not a generic sample—as the source of truth.
What should a nonprofit grant cover letter include?
- Recipient: The correct program officer, foundation or grants office where known.
- Application reference: Opportunity title or reference number if applicable.
- Organization: Your legal name and a short description.
- Request: The project and amount requested if appropriate.
- Fit: One or two sentences explaining why the request aligns with the funder.
- Special information: Any item the donor specifically asks applicants to flag in the cover letter.
- Contact: The correct person for questions.
What should you leave out?
- A second executive summary.
- Long organizational history.
- New project claims that do not appear in the proposal.
- Emotional appeals unsupported by evidence.
- Different budget figures from the application.
- Promises the organization has not validated.
A practical structure
Paragraph 1 — identify the application. State your organization, the opportunity and the request clearly.
Paragraph 2 — explain the fit. Briefly connect your project to the funder’s stated priorities.
Paragraph 3 — establish credibility. Mention only the most relevant experience or capability.
Paragraph 4 — close professionally. Thank the reviewer, provide the contact person and note any required administrative information.
Example framework
Dear [Program Officer / Grants Committee],
[Organization] is pleased to submit its application for [opportunity name] requesting [amount] to support [project]. The proposed work addresses [specific need] among [target group] in [location].
The project aligns with [funder priority] by [brief explanation]. Our organization brings [relevant experience/capability], which is described in more detail in the attached proposal.
Thank you for considering this request. Please contact [name/title] at [contact information] if additional information is required.
Cover letter vs executive summary
The executive summary is part of the proposal and summarizes the project case. A cover letter sits outside the core proposal and usually introduces the application or communicates specific administrative information. Do not make both documents identical.
Cover letter vs Letter of Inquiry
A Letter of Inquiry is often a first-stage funding document used to screen whether a nonprofit should submit a full proposal. A cover letter normally accompanies an application that is already being submitted. They serve different decisions.
Final checks before sending
- Confirm the donor actually accepts or requires a cover letter.
- Use the same project title and figures as the proposal.
- Check the recipient’s name and role.
- Remove generic language that could apply to any funder.
- Keep it concise unless the donor instructs otherwise.
- Do not add unsupported claims.
Before submission, the Proposal Fatal Flaw Checker can help your team catch inconsistencies between the cover letter and the wider application.
Frequently Asked Questions
Does every grant proposal need a cover letter?
No. Include one only when the donor requests or permits it.
How long should a grant cover letter be?
Usually short. The exact limit depends on the funder, and any stated instruction should be followed.
Should I repeat the proposal summary?
No. The cover letter should introduce the application and highlight only what is necessary.
Can a cover letter include the amount requested?
Yes, when appropriate and consistent with the application. Never use a different amount from the proposal budget.
Who should sign the cover letter?
Follow the donor’s instructions. Where no rule is stated, use an authorized organizational representative appropriate to the application.
Conclusion
A grant cover letter should make the application easier to understand, not longer. Keep it concise, consistent with the proposal and tightly aligned with the donor’s instructions. If the donor does not request or permit one, do not force it into the application.
Sources and further reading
For application drafting support, GrantsWriterAI can help structure supporting documents for human review against the donor’s official requirements.
Put this guide into practice
Free resource: Donor Match Secrets. Use this free guide to apply the article’s advice to your next funding decision or application.
Optional paid resource: Nonprofit Grant Proposal Templates. Proposal, concept note, budget, logframe, M&E and donor-document starting points. Review the product details and current price before purchasing.
