Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Do not enter social security numbers on this form as it may be made public.Current Non-Profit Entities Filing IRS Tax Form 990 with the Attorney General. On the Membership page, click on the Upgrade Membership link. Complete the dues form and submit payment. There is no filing fee. Complete if the organization answered "Yes" on Form 990, Part IV, line 33, 34, 35b, 36, or 37. Under section 501(c), 527, or 4947(a)(1) of the Internal Revenue Code (except private foundations). If "Yes," complete Part I of Schedule L (Form 990 or 990-EZ). 8. Complete if the organization answered "Yes" on Form 990, Part IV, line 33, 34, 35b, 36, or 37.