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Facilitating the secure exchange of tax information between tax authorities all over the world

Business challenge

Build and operate a solution for exchanging tax information between tax authorities in a secure and standardized way worldwide.


Unisys implemented a common transmission system (CTS) and related services based on OECD’s requirements (functional & non-functional); the CTS services are operated daily through the CTS helpdesk reachable by any tax authority enrolled in CTS 24 hours/7 days.

Results and benefits

  • Achieved highly secure bilateral exchanges of tax information through scalable CTS services
  • Enabled 102 jurisdictions to start exchanging information under a common reporting standard