How can I easily find out more information about each of the fields? One of the tabs in the templates is Field Description tab which you can refer to, but we also have that tab in a pdf format to make it simpler for you to refer to. Click here to download that form. How could I find a nonprofit's EIN number if I do not collect that information? The National Taxonomy of Exempt Entities lists all nonprofits that file taxes with the United States. You can look up organization by name and location, and the records include their EIN number as well as how the nonprofit is categorized by the IRS...