What do you need to include in your donation acknowledgment letter? Thanks for your support of our cause and mission.Please fill in the information below to receive an official letter of acknowledgement for your donations. A donation acknowledgment letter (sometimes called a donation receipt or thankyou letter) is an email or paper that recognizes a charitable contribution. Acknowledge this gift to: A letter will be mailed to the individual or family for donations given in memory, honor, or thanksgiving (include name and address). Take a look at what makes a good thank you letter for a donation or use one of our provided templates to help get you started. In this article, we'll cover how to write a donation letter. Use one of our six sample donation request letter templates to get started. The donor must fill out a Form 8283 for all non-cash donations.