We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Letter requirements for tax purposes.Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. Learn how to easily create your donation receipts and the best practices to follow in writing a great one. Keep a record of any items you donate to a charity. Giving receipts is an important practice since 501(c)(3) donations are tax-deductible to the donor. Our sample form provides an easy way to get started. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. There are many other reasons to send a receipt after receiving a donation.