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                                                                   Exhibit 10.12


                      ONESOURCE INFORMATION SERVICES, INC.

                 Amendment No. 1 to Employee Stock Purchase Plan

                                 April 21, 1999

The 1999 Employee Stock Purchase Plan (the "Plan") is hereby amended as follows:

1. The first paragraph of Article 5 is hereby deleted its entirety and replaced
with the following:

         "The first Payment Period during which payroll deductions will be
         accumulated under the Plan shall commence on June 1, 1999 and shall end
         on January 31, 2000. For the remainder of the duration of the Plan,
         Payment Periods shall consist of the six-month periods commencing on
         February 1 and August 1 and ending on July 31 and January 31.
         respectively, of each calendar year."

In all other respects, the Plan is hereby affirmed and shall remain in full
force and effect.


                  [Remainder of Page Intentionally Left Blank.]





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                                 ONESOURCE INFORMATION SERVICES, INC.



                                 By: /s/ Roy D. Landon
                                    ---------------------------------
                                    Name:  Roy D. Landon
                                    Title: Senior Vice President and
                                           Chief Financial Officer