Enter your name and your social security number on the "name(s) shown on your income tax return" and "identifying number" line, then enter the name and. Please use this letter as your receipt and retain it for your records.This step-by-step guide will help you fill out the donation tax receipt and get things in order for tax season. Please retain this letter as our acknowledgement of your donation. In many cases, charitable donations are tax-deductible. When you donate to a qualifying organization, you can deduct the amount from your taxable income. Learn how to easily create your donation receipts and the best practices to follow in the year-end receipts to your donors. Donate a car to a nonprofit to support a charity of your choice. All vehicles are considered and your car donation is tax deductible. Samaritan's Purse is a tax exempt 501(c)3 organization.