Everything your nonprofit needs to know about Donation Receipts: When to issue, what to include, how to automate the process. Learn the best practices!We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. How do I make a donation in honor or in memory of someone? Include Volunteer Activity. This initial acknowledgement will indicate your name as well as the year, make, model and condition of the vehicle you are donating. The acknowledgment to the donor should include the following: Contribution Details Statements – Good Faith Estimates of Value of Goods or Services. There is no official IRS form that the exempt organization has to complete. When does the nonprofit need to send the written acknowledgment letter to donors? There is not a fee to apply for the Harris Health Financial Assistance Program.