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?They present an opportunity to thank donors in a. A donor acknowledgement letter should include a few specific items to assist the donor and help your organization comply with IRS regulations. Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. Gift acknowledgement letters are important for two reasons. First, they provide proof so donors can claim a US tax exemption. 2.33 Changes in position authorization required in a reduction in force will be determined by. Added details regarding nonprofit status, CoC Program, and Collaborative. Applicant; Removed information regarding HMIS Governance Charter;.