We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. This service is completely contactless, and our drivers will simply leave a tax receipt behind after picking up your charity donations.The Dallas Area Habitat for Humanity is a 501(c)(3) non-profit. Fill out our secure online donation form. Mail a check to: North Texas Food Bank PO Box 676204. Nonprofit organizations must apply for exemption with the Comptroller's office and receive exempt status before making tax-free purchases. Learn how to easily create your donation receipts and the best practices to follow in the year-end receipts to your donors. Do you need a donation receipt letter to claim a tax deduction? Tax Issues for Nonprofits. Neither a nonprofit corporation nor an unincorporated nonprofit association is automatically exempt from federal or state taxes.