Donation acknowledgment letters are more than just a donor tax receipt. There are certain items to include for tax purposes.We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. This step-by-step guide will help you fill out the donation tax receipt and get things in order for tax season. A tax donation letter contains details about the donation, including the date, a description, donor information, and value. What do you need to include in your donation acknowledgment letter? It is your donation that keep our community visions alive. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. Use Form RP524, Complaint on Real Property Assessment to grieve your assessment.