What is required in a donation acknowledgement letter? A gift acknowledgment letter weaves together your nonprofit's appreciation, engagement, and compliance efforts following a donor's generosity.What do you need to include in your donation acknowledgment letter? In Maryland, all written solicitations and receipts require a disclosure statement according to the Maryland Solicitations Act. Donation thank you letter template: Learn how to craft heartfelt thank you notes and enhance donor engagement with LettrLabs. Acknowledgment of "no goods or services were provided as part of this donation. There is no official IRS form that the exempt organization has to complete. When does the nonprofit need to send the written acknowledgment letter to donors? What is the format for donation receipt for income tax purposes? How do I invoice a donation?