In this post, I'm breaking down how to write a donation letter. Try our free donation request letter templates!Download our standard template or check out our example letters for events, auctions, schools, and more. Explain exactly what they money will be used for and show that you have been responsible for donations in the past. To contribute via personal check, please mail a check payable to the "Harris Victory Fund" with the form below and send to:. Learn how to write effective donation letters that boost your nonprofit's fundraising efforts. Cash donation: "Thank you for your contribution of (insert amount of cash donation) on Date. Learn how to write a donation letter that encourages donors to give. This post includes sample donation request letters and a template. 1. Print the template on letterhead.