Sole Source - Software Licensing and Technical Support GuamTax iSeries Host-Based System - Department of Revenue and Taxation (DRT) ANNOUNCEMENT Posted on: 05/19/2026 03:08 PM Posted by: Krystel Guiao, Buyer Supervisor II Department(s): GENERAL SERVICES AGENCY Division(s): GENERAL SERVICES AGENCY Notice Topic(s): GENERAL ANNOUNCEMENT Types of Notice: ANNOUNCEMENT For Audience(s): PUBLIC Share this notice Sole Source - Software Licensing and Technical Support GuamTax iSeries Host-Based System (click here to view) Sole Source - Software Licensing and Technical Support GuamTax iSeries Host-Based System - Department of Revenue and Taxation (DRT) Share through Whatsapp, Facebook, Email and more…