Non-ProfitFree
Thank-You Letter Writer for Donors
Tell River who gave and what the gift does. Get a warm, specific thank-you letter with the receipt wording the IRS requires for that gift.
River's donor thank-you letter writer drafts the letter you send after a gift, in a warm and specific voice that sounds like a person wrote it. Tell River who gave, how much, and what the gift helps you do. The letter names the donor's own gift and its effect, not the organisation's achievements. When the details call for it, it adds the acknowledgment wording a donor needs to claim a deduction, matched to the amount and to anything they received.
Most thank-you templates are written for no donor in particular, so they open with gratitude in general and close with a request for more. Donors notice both. This draft is built from the facts you give: a renewing donor is thanked for loyalty, a tribute gift names the person honoured, and a gala ticket states the deductible amount correctly. If you send hundreds of acknowledgments a month, the donation acknowledgment template sorts gifts by the receipt wording each needs.
This is for executive directors, development staff and board members thanking donors personally, especially at small organisations without a donor relations team. Use it for gifts that deserve more than an automatic email receipt: first gifts, upgraded gifts, major gifts and memorials. Retention starts with the thank-you, and a donor retention analysis shows how many first-time donors never give a second time. For donors you are building toward a larger gift, follow up with a major donor cultivation plan.
What a good donor thank-you letter does
A thank-you letter has one job: make the donor feel their gift mattered and was noticed. That means speed, specifics and the word you. Thank promptly, name the amount and what it will do, and keep the organisation in the background. One concrete picture, such as a month of tutoring for four children, does more than a paragraph about your mission. Do not ask for another gift in the thank-you. Mention a way to see the work instead.
Some wording is required, not optional. For any single contribution of $250 or more, a donor needs a written acknowledgment to claim a deduction. It must give the organisation's name and the cash amount, or describe donated goods without valuing them. It must also say whether the donor received goods or services in return, with a good faith estimate of their value if so. Many organisations include this wording for every gift.
Gifts that buy something need extra care. When a donor pays more than $75 and receives goods or services, such as a gala dinner, the organisation must give a quid pro quo disclosure. It explains that only the amount above the value received is deductible and estimates that value. A $250 ticket for a dinner worth $90 is deductible up to $160. Tribute gifts are thanked to the donor, while the honoree or family receives a separate notice without the amount.
How it works
Describe the gift
Give the donor, the amount and date, and anything they received, such as an event ticket.
Add the impact
Optionally say what the gift helps you do, or share a real moment from the program.
River writes the letter
A specific, warm letter is drafted with acknowledgment wording that fits this gift, ready to sign.
Make more in chat
Write versions for other donors, a handwritten note, or the board member thank-you call script.
What you get
- A personal thank-you letter that names the donor's gift and what it makes possible
- Tone matched to the gift type, from a first gift to a memorial or major gift
- The IRS acknowledgment wording for gifts of $250 or more, with the right goods-or-services statement
- A quid pro quo disclosure with the deductible amount when the donor received something worth recording
- For tribute gifts, a separate short notice to the honoree or family without the amount
- Marked gaps wherever a required receipt detail, such as the gift date, is missing
Common questions
Does every thank-you letter need tax wording?
Not by law. The written acknowledgment is the donor's requirement for any single gift of $250 or more, and the quid pro quo disclosure applies to payments over $75 where the donor received something. Many organisations include the wording on every letter so donors always have it. River adds it whenever your details call for it and labels it clearly.
Can the letter also serve as the receipt?
Yes. One letter can thank the donor and meet the acknowledgment requirement, as long as it includes the organisation's name, the amount or a description of donated goods, and the goods-or-services statement. The donor needs it by the date they file, or the return's due date if that comes first. River puts the receipt details in a short paragraph near the signature.
Should I put a value on donated goods?
No. The acknowledgment describes donated property, such as two boxes of children's books in good condition, but does not value it. Valuing the gift is the donor's responsibility, and larger noncash gifts can require an appraisal on their side. River describes the items you list and leaves value out of the letter.
Is it fine to ask for another gift in the thank-you?
It is better not to. A thank-you that turns into an appeal reads as a transaction, and donors notice. Invite them to see the work instead: a tour, a short update, or a volunteer day. Save the next ask for your year-end appeal letter, written to donors who have already been thanked well.
How quickly should we send it?
As soon as you can, ideally within a few days of the gift. Promptness is part of the message, and a late thank-you suggests the gift was not noticed. Write the letter for your largest and newest donors personally, and add a handwritten line at the top when the signer knows the donor.
What if the donor wants to stay anonymous?
Still thank them, and record the preference. The letter itself is private, so it can be warm and specific. Make sure the donor is left off public recognition lists, annual report credits and social media posts. River adds a short line confirming that their wish for anonymity will be respected if you mention it.
Sources
Built by
Chandler Supple
Co-founder & CEO, River
Chandler has spent the last six years working in AI, building tools for millions of users and Fortune 100 companies. In 2025, he co-founded River to build a new kind of operating system for AI agents.
Thank-You Letter Writer for Donors
Describe what you need, add any files you have, and your workspace opens with the work already underway.