As certain aspects of the current tax and benefits systems are inter-dependent, the introduction of WRIT has consequential impacts for the Department for Work and Pensions (DWP).
Gan fod agweddau penodol ar y systemau treth a budd-daliadau presennol yn rhyng-ddibynnol, bydd effaith ganlyniadol ar yr Adran Gwaith a Phensiynau yn sgil cyflwyno CTIC.