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. A donation receipt documents the details of a cash or property donation that's gifted to an individual cause or organization. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. You can reduce what you owe in property taxes. Property tax exemptions, exclusions and lowered tax rates are based on how you use your property. Here's an example of a donation receipt that our nonprofit user sent out to their donor. We've highlighted important fields for your convenience.