Donation acknowledgment letters are more than just a donor tax receipt. There are certain items to include for tax purposes.What should a donation request letter include? In this post, I'm breaking down how to write a donation letter. What is required in a donation acknowledgement letter? Then, write a tailored letter to that supporter just like you would for a significant monetary donation. There are many other reasons to send a receipt after receiving a donation. Then, write a tailored letter to that supporter just like you would for a significant monetary donation. Make sure to clearly lay out in your letter that you need donors to make a donation. How do I fill this out?