What do you need to include in your donation acknowledgment letter? Donation acknowledgment letters are more than just a donor tax receipt.There are certain items to include for tax purposes. Acknowledgment of "no goods or services were provided as part of this donation. Send out your consolidated, year-end receipt letters. Simplify your receipting process. Acknowledgment of Gifts. Donors are to be sent written acknowledgments in a timely fashion, unless they specifically request that no acknowledgment be made. Thank you for your gift of securities to Feeding America. Enter your Letter ID and either your Individual IL Pin or your most recent.