Learn how to write effective fundraising letters that inspire more support from donors. Explore best practices and templates in this comprehensive guide.Looking for an easy way to create fundraising letters? This guide and free templates empower you to effectively communicate needs and inspire support! This document provides a sample format for a letter acknowledging an in-kind contribution or donation. What do you need to include in your donation acknowledgment letter? Writing a donation letter for school can be daunting, but with these free templates, you can send the right message in no time. 1. Print the template on letterhead. Learn how to write a donation letter that encourages donors to give. This post includes sample donation request letters and a template.