We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Learn how to easily create your donation receipts and the best practices to follow in the year-end receipts to your donors.Fill this donation request form and you will receive your already filled donation receipt in PDF format directly in your inbox. This receipt is the only record of your tax-deductible donation. A donation receipt documents the details of a cash or property donation that's gifted to an individual cause or organization. If you donated to a nonprofit at one of our locations, you are able to access an electronic copy of our nonprofit partners' tax receipt below. This booklet contains: Form 100S, California S Corporation. Donations are tax-deductible. The Federal Tax I.D. number for the Santa Clara County Library is 35-2345011.