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.My research on thank you letters culminated in a list of the 20 Characteristics of Great Thank You Letters which was published in DonorCentered Fundraising. Discover how to craft donor acknowledgment letters that resonate. Access templates and best practices for donor engagement. Create your account today. Fill out Sample Letter for Acknowledgment of Receipt of Gift or Donation - Appreciative online. "Thank you for your contribution of (insert amount of cash donation) on Date. No goods or services were provided in exchange for this contribution. Please do not simply copy these examples.