An organization should use Schedule O (Form 990), rather than separate attachments, to: Provide the IRS with narrative information required for responses to specific questions on Form 990 or 990-EZ. Explain the organization’s operations or responses to various questions. Current Revision Schedule O (Form 990 or 990-EZ) PDF Recent Developments None at this time. Other Items You May Find Useful All Schedule O (Form 990 or 990-EZ) Revisions Other Current Products Related About Form 990, Return of Organization Exempt from Income Tax About Form 990-EZ, Short Form Return of Organization Exempt from Income Tax