Bystep guide on how to fill out a Goodwill tax donation receipt. This form is available at our stores in Maine, New Hampshire and Vermont.The receipt they handed me just had "2 bags, clothes" listed on it. As the donor, apparently I am supposed to fill in the value. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. A donation receipt documents the details of a cash or property donation that's gifted to an individual cause or organization. Everything your nonprofit needs to know about Donation Receipts: When to issue, what to include, how to automate the process. Learn the best practices!