UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) September 27, 2004 --------------------------- Citigroup Inc. - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Delaware 1-9924 52-1568099 - --------------- ----------- ------------------- (State or other (Commission (IRS Employer jurisdiction of File Number) Identification No.) incorporation) 399 Park Avenue, New York, New York 10043 - -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) (212) 559-1000 - -------------------------------------------------------------------------------- (Registrant's telephone number, including area code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Citigroup Inc. Current Report on Form 8-K ITEM 8.01 OTHER EVENTS. In connection with the issuance by Citigroup Capital XI of capital securities described in the Prospectus dated September 14, 2004, our tax counsel rendered an opinion regarding certain tax matters. A copy of that opinion is filed as Exhibit 99.1 to this report. ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits Exhibit Number -------------- 99.1 Opinion regarding certain tax matters. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Dated: September 27, 2004 CITIGROUP INC. By: /s/ Guy R. Whittaker --------------------------- Name: Guy R. Whittaker Title: Treasurer EXHIBIT INDEX Exhibit Number -------------- 99.1 Opinion regarding certain tax matters.