We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. A tax donation letter contains details about the donation, including the date, a description, donor information, and value.The IPP Taxscribe Personal Online Listing System allows taxpayers to file extension requests, manage multiple listings, file online, and quickly update data. This step-by-step guide will help you fill out the donation tax receipt and get things in order for tax season. What do you need to include in your donation acknowledgment letter? In addition to Form D-400, you may be required to complete and attach the following additional tax forms: Form D-400 Schedule S, 2019 Supplemental Schedule. Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. Date your check on or before Dec. When filing an amended North Carolina individual income tax return, fill in the "Amended Return" circle located at the top right of Form. D-400. The donor will use this letter as proof of his or her donation to claim a tax deduction.