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.A donor acknowledgement letter should include a few specific items to assist the donor and help your organization comply with IRS regulations. Gift acknowledgement letters are important for two reasons. First, they provide proof so donors can claim a US tax exemption. Want to learn how to write and structure donor acknowledgment letters? Check out these tips and sample letters to make a greater impact. A QR scan code will assist donors with making their donation while at the event without asking them to stand in a long line to complete a check out process. Organizations shall remain in the name of the respective schools and organizations. Pay.gov is a free service that allows you to pay many, but not all, United States government agencies.