How to Write a Letter of Inquiry That Gets Funders to Say Yes
Before a funder ever reads your full grant proposal, they read your Letter of Inquiry. This short document — typically just two to three pages — is your first real conversation with a potential funder, and it carries enormous weight. Get it right, and you earn an invitation to submit a full proposal. Get it wrong, and your organization's work never gets the attention it deserves, no matter how impactful your programs are.
The good news? Writing a compelling LOI is a learnable skill. This guide walks you through exactly what funders want to see, how to structure your letter for maximum impact, and the common mistakes that quietly kill otherwise strong applications.
What Is a Letter of Inquiry and Why Does It Matter?
A Letter of Inquiry (LOI) — sometimes called a Letter of Intent — is a brief introductory document that nonprofits submit to foundations before a full proposal. Many funders use LOIs as a screening tool to manage their workload and ensure alignment before investing time in a full review process.
Think of it this way: the LOI is your elevator pitch in written form. You have limited space to answer three fundamental questions every funder is asking:
- Who are you? (organizational credibility and mission)
- What do you want to do? (the project or program you're seeking funding for)
- Why should we care? (the need, the impact, and the fit with their priorities)
Foundations receive hundreds — sometimes thousands — of LOIs each year. Program officers are busy, and they're scanning for reasons to say no just as much as reasons to say yes. A well-crafted LOI respects their time, speaks their language, and makes the case clearly and compellingly.
Do Your Homework Before You Write a Single Word
The most common reason LOIs fail has nothing to do with writing quality. It's poor funder alignment. Submitting a strong LOI to the wrong funder is a waste of everyone's time.
Before you begin drafting, invest time in genuine research:
- Read the funder's guidelines carefully — and then read them again. Note the geographic focus, funding priorities, eligible organizations, grant size ranges, and any explicit exclusions.
- Review their recent grants. Most foundations publish their grantee lists. Look for patterns: What types of organizations do they fund? What project sizes? What populations?
- Study the language they use. If a funder talks about "systems change" and "equity-centered approaches," mirror that language authentically in your LOI.
- Check for existing relationships. Has your organization received funding from them before? Does a board member have a connection? Warm introductions matter.
Tools like CharityGrantWriter can significantly streamline this research phase, helping you identify funders whose priorities genuinely align with your mission and flag key language patterns from their guidelines — so you're not starting from scratch every time.
The Anatomy of a Strong LOI
While every funder has slightly different requirements, most effective LOIs follow a similar structure. Here's what to include and how to approach each section.
Opening Paragraph: Hook Them Immediately
Your first paragraph needs to do heavy lifting. Lead with the problem you're solving and why it matters now — not with your organization's history or a generic statement about your mission.
Weak opening: "The Riverside Community Foundation has been serving our region since 1987, and we are pleased to request funding for our youth mentorship program."
Strong opening: "In Riverside County, one in four young people between the ages of 14 and 18 has no consistent adult mentor outside their immediate family — a gap that research consistently links to higher dropout rates, lower lifetime earnings, and increased involvement with the justice system. Our Pathways Mentorship Program has spent the last five years closing that gap, and we're ready to scale."
The second version immediately establishes urgency, grounds the need in data, and signals organizational credibility — all in two sentences.
Organizational Overview: Establish Credibility Quickly
After your hook, give the funder a brief snapshot of your organization. This section should be two to four sentences maximum. Include:
- Your mission in plain language
- How long you've been operating
- The geographic area you serve
- One or two concrete impact metrics that demonstrate you deliver results
Avoid the temptation to tell your full organizational story here. Save that for the full proposal. The goal is simply to establish that you're a credible, established organization capable of executing the work.
Statement of Need: Make the Problem Undeniable
This is where many LOIs lose momentum. Writers either skip the need statement entirely (jumping straight to their program) or bury it in vague language about "underserved communities."
A strong need statement does three things:
- Uses specific, local data whenever possible. National statistics are fine as context, but funders want to know about the problem in their geographic area of interest.
- Humanizes the issue. One brief, anonymized story or illustrative example can make data feel real.
- Connects the need to the funder's priorities. If the foundation focuses on educational equity, frame your need statement through that lens.
For example, if you're writing an LOI for a food security program, don't just cite national hunger statistics. Pull county-level data from Feeding America, reference local school free-and-reduced lunch rates, and connect those numbers to the funder's stated interest in child wellness.
Project Description: Be Specific About What You'll Do
Here's where you describe your proposed project or program. Keep it focused and concrete. Funders want to know:
- What activities will you carry out? Be specific — not "we will provide services" but "we will deliver 12 weekly workshops, each serving 20 participants, at three community centers."
- Who will you serve? Define your target population clearly, including numbers.
- What outcomes do you expect? Identify two or three measurable results you're working toward.
- What is your timeline? Even a rough timeframe helps funders understand the scope.
Avoid jargon and acronyms. Write as if the program officer reviewing your LOI is intelligent but unfamiliar with your specific field. Clarity is a form of respect.
Budget Overview: Give Them the Big Picture
Most LOIs don't require a detailed budget, but you should include a brief financial snapshot:
- Total project cost
- Amount requested from this funder
- Other funding sources (confirmed or pending)
Showing that you have or are actively pursuing other funding sources signals organizational sustainability and reduces perceived risk for the funder. If you're asking for $50,000 toward a $200,000 project, say so — and briefly note where the remaining $150,000 is coming from.
Closing: Make the Ask Clear and Express Genuine Interest
End your LOI with a direct, confident ask. Restate the funding amount you're requesting, express genuine enthusiasm for the potential partnership, and invite next steps.
Example closing: "We are requesting $45,000 to support the first year of Pathways Mentorship Program expansion into the Eastside neighborhood. We believe this work aligns closely with the Foundation's commitment to youth development and educational equity, and we would welcome the opportunity to discuss our proposal further. Thank you for your consideration."
Keep it warm but professional. Avoid sycophantic language like "We are so honored to be considered" — it reads as filler and weakens your close.
Formatting and Length: The Details That Signal Professionalism
Even the best content can be undermined by poor presentation. Follow these formatting best practices:
- Stick to the funder's specified length. If they say two pages, write two pages — not two and a half.
- Use a readable font (11 or 12-point, standard serif or sans-serif) with normal margins.
- Break up dense paragraphs. Use white space generously. Program officers are reading dozens of documents; walls of text are fatiguing.
- Use headers if the funder allows them. They help busy readers navigate your document quickly.
- Proofread obsessively. Typos, grammatical errors, and mismatched funder names (a surprisingly common mistake when adapting LOIs) signal carelessness and can disqualify an otherwise strong submission.
When you're managing multiple LOIs simultaneously — which most development professionals are — platforms like CharityGrantWriter can help you track submission requirements, deadlines, and customization notes so nothing slips through the cracks.
Common LOI Mistakes to Avoid
Even experienced grant writers fall into these traps:
- Writing about your organization instead of the funder's priorities. Your LOI should feel like it was written for this funder, not copied from a template.
- Burying the ask. Don't make the program officer hunt for the funding amount. State it clearly.
- Overloading with statistics. Two or three well-chosen data points are more powerful than a paragraph of numbers.
- Using passive voice excessively. "Youth will be served" is weaker than "We will serve 150 youth." Own your work.
- Forgetting to follow up. If you haven't heard back within the funder's stated timeline, a brief, professional follow-up email is appropriate and often appreciated.
Putting It All Together
A great Letter of Inquiry isn't about impressing funders with sophisticated language or exhaustive detail. It's about making a clear, credible case that your work matters and that your organization can deliver results — in a format that respects the funder's time and speaks directly to their priorities.
The best LOIs feel like the beginning of a conversation, not a sales pitch. They demonstrate that you've done your homework, that you understand the problem deeply, and that you have a thoughtful, realistic plan to address it.
Start with research. Lead with the problem. Be specific about your solution. Make the ask clearly. And then proofread one more time.
Whether you're writing your first LOI or your fiftieth, the fundamentals don't change — but the execution gets sharper with every submission. Use every response (or non-response) as feedback, refine your approach, and keep building those funder relationships over time. That's how organizations move from occasional grants to long-term funding partnerships.