Fundraising Letters: 5 Simple Tips That Increase Donor Generosity

a mailbox overflowing with fundraising letters

Why Nonprofit Fundraising Letters Still Matter

In a digital world full of noise, nonprofit fundraising letters remain one of the most powerful and personal communication tools you can use. These letters are more than simple donation requests — they’re bridges between your mission and the people who believe in it.

A well-written fundraising letter can:

  • introduce new supporters to your mission

  • build emotional connection

  • inspire generosity

  • remind donors of their impact

  • strengthen long-term loyalty

But not all letters generate the response nonprofits hope for.
The difference between a forgettable letter and a generous response often comes down to structure, storytelling, and clarity.

Below are five simple, effective steps to transform your nonprofit fundraising letters and inspire deeper generosity.

Understanding the Importance of Nonprofit Fundraising Letters

Fundraising letters are the heartbeat of many nonprofit fundraising strategies. They allow you to communicate directly with donors, share the impact of your work, and invite people into the mission in a meaningful way.

Strong fundraising letters:

  • foster emotional connection

  • reinforce donor trust

  • provide transparency

  • strengthen long-term donor relationships

  • increase donor retention

If your messaging foundation needs a refresh before sending letters, I recommend reviewing Nonprofit Key Messages: 5 Steps to Effectiveness. Or, Donor Box’s Fundraising Letters: Asking for Donations Made Easy [+ Examples].

The 5 Steps to Writing Effective Nonprofit Fundraising Letters

1. Personalize Your Fundraising Letters

Personalization is one of the most important elements of donor communication.
Address your donor by name.
Reference their history if possible.
Acknowledge their support.

Personalized letters help donors feel:

  • seen

  • appreciated

  • connected

  • important

People give more generously when the message feels like it was written for them, not to the masses.

If your organization struggles with consistent donor communication, consider reviewing your messaging strategy:
Marketing Communications Services

2. Tell a Compelling Story

Storytelling is the emotional engine of a strong fundraising letter.
It builds empathy, creates urgency, and reminds donors why their support matters.

Your story should:

  • center one person, family, or community

  • illustrate a challenge

  • show how your nonprofit helps

  • highlight what the donor makes possible

The goal:
A donor should finish reading and think:
“I want to be part of this.”

For additional storytelling guidance, see How Nonprofits Using Emotional Marketing Build Stronger Connections.

3. Make a Clear Call to Action

Don’t ask vaguely.
Tell donors exactly what you want them to do.

Examples:

  • “Will you give $50 today to help one student receive tutoring for a full month?”

  • “Your gift of $25 provides two families with emergency groceries.”

  • “Join us with a gift before Friday to unlock the matching fund.”

A strong call to action includes:
✔ What you need
✔ Why it matters
✔ How to do it
✔ What the impact will be

Specificity increases generosity.

a nonprofit member writing fundraising letters

4. Show Genuine Gratitude

Gratitude is powerful.
Fundraising letters should make donors feel like partners — not ATMs.

Express appreciation for:

  • past support

  • ongoing commitment

  • considering your request

  • the difference they make

Gratitude strengthens donor retention more than almost any other tactic.

You can even add:

  • handwritten notes

  • P.S. thank-yous

  • short emails or follow-ups

  • seasonal or anniversary acknowledgments

Even small touches build trust and loyalty.

5. Follow Up After the Donation

Don’t let the relationship end at the gift.
A follow-up thank-you is essential.

Your follow-up should:

  • thank the donor

  • show how their gift is being used

  • share a specific outcome

  • invite continued connection

Examples:

  • handwritten postcards

  • personalized emails

  • quarterly donor impact updates

  • branded thank-you cards

Tip: Even larger organizations can add a human touch by handwriting notes to recurring donors or top supporters.

If you need help designing donor-friendly collateral, you can also incorporate Canva-brand notes for a polished touch.

Key Principle:
Follow-up is relationship-building, not fundraising.

Examples of Strong Fundraising Letters

Successful nonprofit fundraising letters tend to share these qualities:

  • personal opening

  • emotional storytelling

  • specificity

  • clarity

  • gratitude

  • follow-up

Example snippet:

“Ava started school with no books of her own. Thanks to supporters like you, she received her very first reading kit last month. Will you help us reach 500 more students just like her?”

This simple structure:
story → urgency → action → gratitude is incredibly effective.

Need more examples and help? Check out Bloomerang’s How To Write An Annual Fundraising Appeal Letter.

The Role of Donation Letters in Maximizing Contributions

Donation request letters:

  • reach supporters directly in a personal way

  • cut through digital noise

  • reinforce mission and impact

  • build consistent donor engagement

  • support both small and large campaigns

They’re also a powerful complement to your website.
If you’re strengthening your digital presence, you may find value in this related blog: Why Your Website Should Be the Heart of Your Nonprofit (Especially When Times Are Tough)

Key Elements of Effective Fundraising Letters

To recap, strong fundraising letters are:

  • personalized

  • emotional

  • mission-centered

  • easy to read

  • focused on one story

  • clear about the ask

  • filled with gratitude

  • complemented with follow-up

These qualities dramatically increase donor generosity.

Common Mistakes to Avoid

Avoid:
🚫 generic greetings
🚫 overly formal language
🚫 unclear or weak calls to action
🚫 emotionless writing
🚫 “we”-centric narratives
🚫 forgetting to thank donors
🚫 skipping follow-up

A donor-centered mindset makes every letter more effective.

Different Fundraising Letters for Different Donors

Your letter should shift depending on the donor type.

For first-time donors:

  • introduce your mission

  • explain the need

  • show quick, meaningful impact

For recurring donors:

  • express deeper gratitude

  • share long-term outcomes

  • update them on progress

For lapsed donors:

  • acknowledge their past support

  • share a recent win

  • invite them back with a specific ask

Personalization increases response rates at every level.

Conclusion: The Power of Well-Crafted Fundraising Letters

A thoughtful fundraising letter can build relationships, inspire generosity, and strengthen your donor community. When you personalize your message, tell a meaningful story, ask clearly, express gratitude, and follow up — you create donor experiences that last.

You don’t just get a donation.
You gain an invested supporter.

Ready to Strengthen Your Fundraising Communications?

Whether you’re writing fundraising letters, clarifying your messaging, or building donor-focused content, I’m here to support you.

Let’s elevate your nonprofit’s communications with clarity and purpose. Contact me here

Or, if you're a smaller nonprofit in need of messaging and fundraising strategy support, apply for The Sunflower Project — my pro bono program providing 60 hours of consulting each quarter.

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