In that case, all you need to provide in the donation receipt is the name and EIN of the organization, date of donation, and a description of the donated item. Everything your nonprofit needs to know about Donation Receipts: When to issue, what to include, how to automate the process.Learn the best practices! Cook County Treasurer's Office 118 North Clark Street, Room 112 Chicago, Illinois 60602 (312) 443-5100 Duplicate or Overpayment Refund. Religious organizations should complete Form PTAX-300-R, Application for Religious Property Tax Exemption. The required attachments are listed on that form. When is a nonprofit donation tax receipt required? Appeal Online: You may submit your appeal and supporting documents entirely online when the property's township is open for appeals. The Portal consolidates information and delivers Cook County taxpayers a one-stop customer service website.