Learn how to easily create your donation receipts and the best practices to follow in the year-end receipts to your donors. Donation acknowledgment letters are more than just a donor tax receipt.There are certain items to include for tax purposes. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Texas Comptroller Property Tax Publications click here. Contributions are not deductible as charitable contributions for federal income tax purposes. In this guide, we'll walk you through how to write a yearend donation letter that connects with your audience and inspires action. The letter was addressed to her and her children.