In this article, we'll cover how to write a donation letter. Use one of our six sample donation request letter templates to get started.In this post, I'm breaking down how to write a donation letter. This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one. Explain exactly what they money will be used for and show that you have been responsible for donations in the past. Looking for an easy way to create fundraising letters? This guide and free templates empower you to effectively communicate needs and inspire support! Try our free donation request letter templates! Download our standard template or check out our example letters for events, auctions, schools, and more. Pay.gov is a free service that allows you to pay many, but not all, United States government agencies.