Learn how to write effective fundraising letters that inspire more support from donors. Explore best practices and templates in this comprehensive guide.Thank you for your careful consideration of our request. We look forward to your participation and support. Everything your nonprofit needs to know about Donation Receipts: When to issue, what to include, how to automate the process. Learn the best practices! Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. 1. Print the template on letterhead. Impact Statement: Your mission statement sets up the goal, and your impact statement says why it matters. We are making sample materials available for public service and educational purposes on the basis set out on the site including its Terms of Use.