Everything your nonprofit needs to know about Donation Receipts: When to issue, what to include, how to automate the process. Learn the best practices!This publication explains how individuals claim a deduction for charitable contributions. 1 Enter the amount you wish to donate to each of the following voluntary charitable donation funds. You may contribute any whole-dollar. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. To find out if you qualify, write a letter of request to the Illinois Department of Revenue, Sales. If you are filing as a combined taxpayer, see Illinois Schedule UB,.