The LOI exists because program officers cannot read full proposals from everyone. Candid Learning’s letters of inquiry guide is blunt about the stakes: for many foundations the LOI alone is enough to make the screening decision. That reframes the writing job. You are not teasing a proposal or building suspense; you are giving a reader with a stack of letters everything needed to sort yours into “invite” in under three minutes.
Letter of inquiry templateThe five-paragraph structure with sentence-level prompts, per-paragraph length targets, a numbers-consistency rule, and a pre-send checklist. Formatted for a one-page letter; adaptable to portal fields.
Markdown templateWhat the reader is screening for
Before the anatomy, know the test you are being given. A program officer screening LOIs is answering four questions in order: is this within our guidelines, is the need real and in our focus area, is the program plausible at this organization’s scale, and is the number sensible. A letter that makes any of those answers hard to find gets sorted down regardless of writing quality.
That is why the first check happens before drafting: confirm fit against the funder’s current guidelines with a real gate, not optimism. The eligibility matrix method makes this a fail-closed step. An eloquent LOI to a funder whose guidelines exclude you costs you the hours and teaches the funder your organization does not read instructions.
The five-paragraph build
Candid’s six components map cleanly onto five paragraphs once the introduction and summary stop being ceremonial. Each paragraph below has one job.
Paragraph 1, request and fit, two to three sentences. Name your organization, the amount, the program in one clause, the population, and the place, all in the first sentence. Add one sentence connecting the request to the funder’s stated priorities using their published language accurately. Warm-up openings (“For over twenty years, our organization has…”) spend the most valuable real estate in the letter on the least useful content.
Paragraph 2, need, three to four sentences. Population, condition with your single strongest sourced figure, consequence. This is the needs statement evidence chain compressed to its skeleton. One figure, maybe two; a statistics dump at this length reads as a form letter.
Paragraph 3, program, three to five sentences. What you will do, for whom, at what scale, over what period, delivered by whom, toward what checkable change. Describe this program, not your organization’s whole portfolio. Mission language is the classic failure here: “empowering youth to reach their full potential” survives editing because it sounds fine, and it tells the screener nothing.
Paragraph 4, organization and numbers, two to three sentences. One capacity fact chosen for relevance to this program, then the money: total project cost, amount requested from this funder, and other funding committed or pending. Use only numbers you can reconcile with the full budget later; an LOI total that disagrees with the invited proposal’s budget is a credibility wound at the worst possible moment.
Paragraph 5, close, one to two sentences. Offer the full proposal, name a contact with direct phone and email, thank them once. No new claims.
Worked example
A complete fictional LOI, annotated by paragraph
Cedar Bend Youth Alliance and the Meridian Community Fund are both fictional, invented for worked examples on this site. All figures are illustrative.
“Dear Ms. Alvarez,
Cedar Bend Youth Alliance requests $48,000 from the Meridian Community Fund to operate a school-year after-school reading program for 60 third and fourth graders in the Cedar Bend school district, in direct support of the Fund’s published priority of early-grade literacy. [Request, amount, population, place, and fit, one sentence each way.]
On the 2025 state assessment, 41 percent of the district’s third graders scored below reading proficiency, against 33 percent statewide. The district ended its only after-school tutoring program in 2024 when federal funding lapsed, and students already behind now have no structured literacy support outside school hours. [Condition with sourced comparison, then consequence. Two sentences carry the whole need.]
The program will provide four hours per week of small-group instruction, in groups of no more than five students, delivered by two certified teachers at both district elementary schools from September 2027 through May 2028. Students are referred by classroom teachers using fall benchmark scores. We will measure progress with fall and spring benchmark assessments and expect at least two-thirds of participants to improve one proficiency band. [Dose, scale, staffing, referral path, and a checkable outcome.]
Cedar Bend Youth Alliance has operated youth programs at both schools since 2019 and currently maintains a waitlist of 38 families requesting academic support. The total program cost is $61,000; the district is contributing facilities valued at $8,000, and a $5,000 request is pending with a local family foundation. [One relevant capacity fact; a money picture that will reconcile with the full budget.]
A full proposal and current financial statements are available at your request. Thank you for the Fund’s consideration; I can be reached directly at the phone and email below. [Close, contact, done.]”
The letter runs about 280 words: one page with letterhead and generous margins. Nothing in it would need to be walked back in the full proposal.
Why one page wins
Candid’s ceiling is three pages, and some funders explicitly request two. Our advice when the funder is silent on length: draft to one page, every time.
After it goes out
An LOI is a pipeline event, not a completed task. Log it in your grant tracking spreadsheet with the date sent, the funder’s stated response window, and the follow-up date when silence becomes a polite status inquiry. If the invitation comes, the full proposal assembles from the same fact base the letter drew on; if the full-proposal side is newer territory for your team, Candid Learning’s free introduction to proposal writing is the standard sector course for it. Either way, an invited proposal cannot contradict the letter that earned the invitation, which is the strongest argument for writing LOIs from a maintained core narrative rather than from scratch: the letter and the eventual proposal share sources, so they cannot disagree.
If the answer is no, record it and move on; a declined LOI cost you one page, which is the entire point of the instrument.