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 30, 2003

                                 CITIGROUP INC.

               (Exact Name of Registrant as Specified in Charter)


     Delaware                        1-9924               No. 52-1568099

(State or Other Jurisdiction    (Commission File   (IRS Employer Identification
   of  Incorporation)                Number)                   No.)



         399 Park Avenue, New York, New York                      10043

     (Address of principal executive offices)                   (Zip Code)


       Registrant's telephone number, including area code: (212) 559-1000


                                 Not Applicable

         (Former name or former address, if changed since last report.)




ITEM 5.  OTHER EVENTS

     In connection with the issuance by Citigroup Capital X of capital
securities described in the Prospectus dated September 5, 2003, our tax counsel
rendered an opinion regarding certain tax matters. A copy of that opinion is
filed as exhibit 99 to this report.


ITEM 7.      FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

            (a)   Not applicable.

            (b)   Not applicable.

            (c)   Exhibits:

                    The following exhibit is filed herewith:

                    Exhibit 99       Opinion regarding certain tax matters.





                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.


                                   CITIGROUP INC.


Date:  September 30, 2003           By: /s/ Guy R. Whittaker
                                        --------------------
                                        Name:   Guy R. Whittaker
                                        Title:  Treasurer





                                  EXHIBIT INDEX

Exhibit No.                Description
- ----------                 -----------

Exhibit 99                 Opinion regarding certain tax matters.