This document provides a sample format for a letter acknowledging an in-kind contribution or donation. Our Donation Forms provide everything you need to accept contributions easily.These templates include the donor's name and contact information. Just fill out a form with your account custodian and include our tax ID number: 88-0072720. Complete Gift in Kind Documentation Form - Vehicles. Have donors complete Form W-9. Download Nevada 501(c)(3) Donation Receipt template, modify and send for signing using BoloForms Signature. Donors love knowing who their generosity is helping out. You might need to do this manually, or you can use nonprofit software and marketing tools to automatically populate names into your letters and emails. They stated I needed to consult with an attorney.