Directory Results for 990 Return of Organization Exempt From Income Tax benefit trust or private foundation) or the Treasury Department The organization may have to use a copy of this return to satisfy state reporting requirements Internal Revenue Service A to 990 Return of Organization Exempt From Income Tax De )a4menc of the Treasury intomal Revenue Service Under section 501(c), 527, or 4947(a)(1) of the Internal Revenue Code (except black lung benefit trust or private foundation) &quot