Tax Guide 990 Schedule O: Completing the Picture of Your Nonprofit Form 990 Schedule O – for all the extra details! The last in PDFfiller‘s review of the 990 forms, Form 990 Schedule O allows organizations to supplement the information ... Tax Guide Can Your Non-Profit Make Things Easy with 990 EZ? The 990 EZ Form: reporting for smaller tax-exempt organizations Continuing on PDFfiller‘s review of tax forms, we learn more about which organizations can take the easy route with Form 990 EZ! ...