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.We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Get a Free Nonprofit Donation Receipt Template for Every Giving Scenario. A donation receipt documents the details of a cash or property donation that's gifted to an individual cause or organization. Fill out the form below to generate a donation tax receipt that you can print directly or have emailed to you. 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. Step 1: Complete the taxpayer information section.