What do you need to include in your donation acknowledgment letter? A gift acknowledgment letter weaves together your nonprofit's appreciation, engagement, and compliance efforts following a donor's generosity.Prompt and thoughtful gift acknowledgments are central to effective fundraising. When acknowledging these donations, include the name of the donor, the number of shares, the name of the security, and the date when the transfer was completed. Sample Donor Acknowledgement Letter for NonCash Donation. First paragraph: Immediately thank donors for their gift. Gift acknowledgement letters are important for two reasons. First, they provide proof so donors can claim a US tax exemption. A bequest is a gift of any asset made in a donor's will or trust. Gift acknowledgement letters are important for two reasons.