Get a Free Nonprofit Donation Receipt Template for Every Giving Scenario. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes.If you are a Temple Sinai member with access to the OaklandSinai Portal, we encourage you to log into the portal and donate via the PORTAL DONATION FORM. A donation receipt documents the details of a cash or property donation that's gifted to an individual cause or organization. Enter your information and instantly receive a donation receipt for the items you bring to Goodwill SF Bay. Thank you for donating with us!