How to write a grant proposal cover letter

The cover letter is the shortest document in most proposal packages and one of the easiest to get wrong. Some grant writers treat it as a formality and dash off three generic sentences. Others pack it with a page and a half of program detail that repeats the executive summary. Neither helps.

A good cover letter does three things in one page: it tells the reader exactly what you are asking for, it reminds them why this belongs on their desk, and it puts a real person's name and signature behind the request. Our cover letter template gives you a starting structure.

When to include a cover letter

Include a cover letter when:

• The funder's guidelines ask for one.
• You are submitting by mail or email, where a letter is the customary way to introduce an attachment.
• You have a relationship with the program officer and a short personal note is appropriate.
• You need to flag something specific: a previous conversation, a change since your LOI, or a co-applicant arrangement.

Skip it when:

• The funder's online portal has no place for it.
• The guidelines list required attachments and a cover letter is not among them. Extra documents can count against you or simply be removed.

What to include

A strong foundation cover letter fits on one page and covers:

1. Date, funder contact, and address. Use the program officer's correct name and title.
2. A specific opening. Who you are, what you are requesting (amount, term, purpose), and which grant program or invitation it responds to.
3. Why it matters and why this funder. One short paragraph connecting the project to the funder's priorities, ideally with one result or data point.
4. A sentence on your organization. Mission, scale, and track record in one or two lines.
5. Relationship notes, if any. A prior conversation, site visit, or LOI approval.
6. Contact and close. Thank the reader and name the day-to-day contact with phone and email.
7. Signature. The executive director, and optionally the board chair.

That is it. Leave program detail, evaluation methods, and budget breakdowns for the proposal itself. If you find yourself writing a fourth paragraph about activities, move it to your executive summary.

A sample cover letter

(Data in this sample are fictional. Use your own verified figures.)

Notice what the letter does: the ask is in the first paragraph, the fit is explicit, the one data point is meaningful, and the relationship is acknowledged without fawning. It is also short enough to read in under a minute.

Who should sign

The signer signals who stands behind the commitment.

If you use electronic signatures, make sure the signer has actually reviewed the letter and the proposal. Funders sometimes call the signer, and an executive director who does not know what was requested makes a poor impression.

Tone and style

• Be warm but businesslike. You are writing to a person, not an institution. Use their name.
• Be specific. "Enclosed is our request for $40,000 for Reading Bridges" beats "We are pleased to submit the attached proposal for your consideration."
• Skip superlatives. "Unique," "innovative," and "the only" invite skepticism unless you can prove them.
• Avoid flattery. One sentence of genuine appreciation for the funder's work is enough.
• Match the proposal. Same amount, same project name, same numbers. Inconsistencies between the cover letter and the proposal are a classic red flag.

Special situations

Renewal requests

For a renewal, reference the current grant and one or two results it produced. "With the Foundation's support this year, 34 of 40 students improved at least one reading level. We are requesting renewed support of $40,000 to continue and deepen this work." Keep it brief; the proposal and your grant reports carry the detail.

Changes since your LOI

If the project has changed since the funder approved your LOI, say so plainly and briefly in the cover letter, and explain the change in the proposal. Program officers do not like surprises. If the change is significant, call the program officer before you submit.

Collaborative proposals

When several organizations apply together, the lead applicant usually signs the cover letter, and the letter names the partners and their roles in one sentence. Some funders welcome co-signatures from partner executives. Partner commitments belong in their own letters; see organizational capacity for the difference between support and commitment letters.

Resubmissions

When resubmitting a declined proposal to a foundation that has invited you to try again, a cover letter can briefly note what you changed in response to feedback. For federal resubmissions, follow the agency's specific format. NIH, for instance, requires a one-page introduction to a resubmitted application that summarizes changes and responds to reviewer critiques, and treats a cover letter as optional. See why proposals get rejected for how to approach resubmission.

Corporate funders

Corporate foundations and giving programs often care about connections to their business: employee volunteers, the communities where they have operations, or a cause area tied to their brand. If your organization has such a connection, a cover letter is a good place to name it in a sentence. "Twelve of your Riverside branch employees volunteered as reading buddies with us last year" is the kind of detail a corporate giving officer can use internally. Keep it factual; do not imply a partnership or endorsement that does not exist. Our guide to corporate giving covers how these programs make decisions.

Community foundations

Community foundations usually have staff who know your community well and may know your organization already. Their cover letters can be less formal, but they should still be precise about the request and the grant program you are applying to, since many community foundations run several competitive programs and donor-advised funds at once. Naming the right program avoids your proposal being routed to the wrong place.

Writing the letter last, but planning it first

Most grant writers draft the cover letter after the proposal is final, and that is the right order for the wording: the amount, title, and key result have to match the finished proposal exactly. But it helps to sketch the cover letter's two key sentences at the start of the project:

1. The ask sentence: "We request $[amount] over [term] to [do what] for [whom]."
2. The fit sentence: "This work advances the Foundation's [stated priority] by [specific connection]."

If you cannot write those two sentences clearly at the beginning, the proposal itself is likely to wander. Writing them early keeps the whole application focused, and when you return to the cover letter at the end, you are simply confirming that the finished proposal delivers on them.

A quick pre-send check

Before attaching the letter, read it once aloud. Then confirm:

• The date is current and the funder's name, contact, and address are correct.
• The amount and project title match the proposal and forms.
• The letter names the specific grant program or invitation you are responding to.
• Every fact in it also appears, consistently, in the proposal.
• It fits on one page without shrinking the font below the funder's minimum.
• It is signed by the right person, and the contact details work.

Common mistakes

1. Wrong funder name or contact. The most damaging and most avoidable error.
2. More than one page. It is a cover letter, not a proposal.
3. No amount. The request should be explicit.
4. Mismatched numbers. Different amount or project title than the proposal.
5. Generic boilerplate. A letter that could go to any funder.
6. Including it when not wanted. Uploading a cover letter where the funder did not ask for one.
7. Using a federal cover letter to make your case. It often goes to administrative staff only.
8. Missing signature or contact.

Before you submit, run the whole package through our proposal review checklist, and see how the cover letter fits with every other section in the anatomy of a grant proposal.