Get a Free Nonprofit Donation Receipt Template for Every Giving Scenario. In this blog, we'll share why receipts are important to donors and nonprofits and how to create, customize, and automate them with Donorbox.1. Gather the donor's information including name and contact details. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. RocketLawyer offers a free simple 501(c)(3) nonprofit donation receipt template that can be totally customized. These email and letter templates will help you create compelling donation receipts without taking your time away from your donors.