Unlock the Power of Annual Appeal Letters: Stunning Tips

Published on
March 7, 2025

Why are annual appeal letters such a high priority for charities at year-end?

We can see their impact in the numbers:

31% of all annual giving happens in December and 11% of it occurs on the last three days of the year

Granted, not all giving in December is prompted by letters. Some organizations send emails or texts. A nonprofit makes phone calls to their more valuable existing donors.

It remains that all evidence points to the fact that the end of the year is the most impactful time to communicate with supporters for an even greater impact

Why send annual appeal letters?

As mentioned earlier, emails, texts and phone calls are all options for your year end fundraising campaign.

Why send letters instead of (or in addition to) these other channels?

According to the DMA, direct mail has an 80%+ open rate, while email lags behind at 21%.

That means more of your supporters are likely to sit up and take notice when you send them an annual appeal letter.

Combining that with similarly high visibility channels like text messages (98% open rate) for follow up on donation appeals can ensure that supporters get and read your message in some shape or form by the end of the year.

The objectives of your year-end annual appeal letters

Evaluate why you want to send an annual appeal letter before starting your campaign.

Here are some good reasons to send one:

  • You want to thank supporters, fill them in on upcoming endeavors for the next year and ask for support
  • You want to talk to different groups of prospective donors (say monthly donors vs prospects) with messages tailored to their behavior
  • Reconnect with your supporters and strengthen relationships by showing your nonprofit’s impact of their continued involvement
  • Inspire generosity by showcasing powerful, real-life stories that demonstrate the real difference donors make
  • Motivate one-time potential donors to become loyal, recurring contributors by highlighting the ongoing need and consistent impact of their support.

Having an objective will allow you later to measure the success of your effective annual appeal letter.

Annual Appeal Letter Template

Use this example template to craft a compelling and heartfelt year-end fundraising appeal that connects with more donors and inspires them to give.

[Your Organization’s Letterhead]

[Date]

[Donor’s Name] [Donor’s Address] [City, State, ZIP Code]

Dear [Donor’s Name],

[Reflecting on Our Journey Together]

As we approach the end of another impactful year, we are filled with gratitude for supporters like you. Your commitment has enabled us to [briefly describe a significant achievement, e.g., “provide shelter to over 500 families in need”].

[A Story of Impact]

Consider [Beneficiary’s Name], who faced [briefly describe the challenge, e.g., “homelessness after a natural disaster”]. Through your generosity, [Beneficiary’s Name] now [describe the positive outcome, e.g., “has a safe place to call home and is rebuilding their life”].

[The Road Ahead]

While we’ve accomplished much, challenges remain. To continue our mission and expand our reach, we need your support. A gift of [specific amount, e.g., “$100”] can [describe the impact, e.g., “provide essential supplies to a family for a month”].

How You Can Help

  • Online Donation: Visit [your website URL].
  • Mail: Use the enclosed envelope to send your contribution.
  • Phone: Call us at [phone number].

[Gratitude]

Thank you for being an integral part of our community. Your support transforms lives and brings hope to those we serve.

Warm regards,

[Your Name] [Your Title] [Your Organization’s Name] [Contact Information]

P.S. All donations are tax-deductible. Please consider making your gift before [specific date, e.g., “December 31”] to maximize your tax benefits.

This template incorporates best practices for crafting compelling annual appeal letters, including storytelling, expressing gratitude, and providing good calls to action. For a more detailed approach on template, check out our blog on how to craft a template.

Your Annual Appeal Letter Checklist

Before you hit send, run through this quick checklist to make sure your year-end annual appeal letter truly connects and inspires action.

  1. Pick a Theme That Resonates
    What’s the heart of your message this year? Choose a theme that tells a story and draws your reader in emotionally.
  2. Write Like You’re Talking to a Friend or Family Member
    Skip the formalities. Speak from the heart, like you’re writing to someone you know and care about.
  3. Make It Personalized
    Use their name. Mention how they’ve helped in the past. Let them know they matter to you and your cause.
  4. Celebrate Wins Together
    Share the real impact they’ve made possible this year. People love to hear about the good they’ve done!
  5. Show Them Exactly How They Can Help Right Now
    Be clear. What do you need? How will their gift make a difference? Spell it out.
  6. Have Your Thank You Ready to Go
    Don’t wait! Prepare a heartfelt thank you in advance so they feel appreciated the moment they give.
  7. Include a Clear Call to Action
    Ask confidently. Suggest an amount. Make it easy to say “yes.”
  8. Make Donating Simple
    Add a donation form, include a return envelope, and don’t forget a QR code or link for online gifts!

Crafting an annual appeal letter that truly connects with donors takes thought and strategy. For more inspiration and best practices, check out this guide to writing powerful fundraising letters.

Creating an annual appeal letters timeline

Unlike more immediate channels (ex. email), direct mail takes time to reach your supporters.

That means you need to set the process in motion weeks ahead of time.

That includes planning for your appeal letter and for follow up communication.

Gary Henricksen at Five Maples Development Communication recommends that organizations get ahead of the competition by:

  • Sending an early appeal reach supporters in October
  • Sending another appeal in late November/early December
  • Following up with a multichannel approach (Phone calls/Postcards)

Here’s an example of an annual appeal letter timeline you could follow:

August – Set your objectives and outline the theme for your appeal letters and overall campaign.

September – Segment your donor lists for more personalized messaging. Write your appeal letter copy. Finalize it.

October – Send out an initial set of appeals to reach supporters in late October. Make sure your online giving channels are ready.

November – Send your next round of appeal letters. Keep your lapsed donors with regualr updates on your progress through more immediate channels (social media, texts)

December – Send reminders to supporters who haven’t contributed yet (phone-a-thons, emails, texts). Send follow up’s to remind donors it is the last three days of the year. Send a thank you message to everyone who contributed.

6 Tips for your annual appeal letters

Personalize your annual appeal letter

Personalization can make your appeal exponentially more convincing. That is why segmenting your donor list is so important.

Here are some things to keep in mind when personalizing your letter:

What is their relationship with your organization? Someone who has been a consistent supporter of your organization is more likely to be impacted by the sentence, “As a valuable, long-time supporter of our cause…” than a generic appeal.

What amount are you asking for? Some supporters may have been contributing $5 a month to your cause. Upping that to a $500 ask doesn’t make sense. Segment your donors based on their past giving amounts to send them appropriate asks.

When did they last give? Asking supporters who gave very recently (maybe in the same month) to give again is not a good idea. Best case, they ignore you. Worst case is that they get annoyed. Avoid that by filtering out these contacts from your mailing list.

Use thank you’s liberally

Appealing to supporters means making your appreciation as much a theme of the letter as your solicitations.

This starts by having a strong thank you in the beginning. An enthusiastic and genuine show of appreciation will encourage reader’s attention to stay tuned for what you have to say next.

And not just the beginning. You can incorporate gratitude throughout in your letter and make donors feel like a key member of your mission.

Be specific in your ask

If your main CTA is going to be something along the lines of “We would love to have your support” or “Your generous gift will help us achieve our fundraising goals”, the results of your campaign may disappoint you.

Make it clear what you ask of your donors. (and as mentioned above, the more personalized, the better).

That means using specific, action-oriented CTA’s like “Can you contribute $100 to help us reach our goal?”

This letter From Habitat for Humanity is a great example of how you can use gratitude and specific asks in your copy.

annual-appeal-letters-habitat-for-humanity-letter

Make donating easy

The advantage of online channels is that you can just link out to a enclosed donation form and you’re good to go.

When it comes to your appeal letters, the objective is to make donating as easy as possible and to give them options to do so.

Here are a few examples:

  • Include a pre addressed return envelope with paid postage for donations or pledges.
  • Make sure the URL to make an online donation is clearly visible in your letter.
  • Add a QR code that supporters can scan to reach your donation page.
  • Give them a keyword and a phone number they can text in to, to receive a donation link.

This letter from Larchmont Public Library offers multiple options for supporters to donate.

annual-appeal-letters-larchmont

Follow up with a supporters

You will want to send reminders to reach supporters in late December.

Following the lines of a letter, postcards are an inexpensive and relatively quick way to reach supporters.

And since people are more likely to have their online mailboxes overburdened than their physical ones, you can stand out.

But you don’t have to settle for sending appeals and follow ups through a single channel. That brings us to the next point:

Why send follow ups?
Many people can read your letter and decide to make the contribution later. It’s crucial to send them reminders to contribute soon after your appeal letter reaches them.

Use a multichannel approach

According to Nonprofit Source, marketing campaigns using a combination of direct mail and digital mail have a 28% higher conversion rate.

  • Send emails to your contact list a couple of times a week.
  • Schedule a mass text message to go out a few days after they receive your direct mail appeal.
  • Organize calling campaigns with the help of volunteers. Reach out to contacts who have yet to contribute.

Using a multi-channel approach and sending reminders are the best ways to increase the chance of your supporters making a contribution.
That’s where a texting and calling tool like CallHub can help. All you need to do is sign up for free and upload your contact list to start creating campaigns.

Mukundan Sivaraj Linkedin
Mukundan (that's me!) is a writer at CallHub, an outreach platform that connects nonprofits with their supporters through voice and text messages. Mukundan’s focus on nonprofit technology and communication helps him show nonprofits, big and small, how technology can help elevate their cause.