KINGSTON, Jamaica — Tax Administration Jamaica (TAJ) has commenced a major upgrade of its Revenue Administration Information System (RAIS), aimed at modernising the country’s tax administration and improving service delivery to taxpayers. In a release, TAJ said the project, launched on Thursday, March 12, 2026, will upgrade its existing RAIS platform GENTAX version 10, which was implemented in 2014, to the latest CORE 26 version in partnership with FAST Enterprises....