DWP will make the necessary changes to benefit IT platforms which interface with the UK tax systems to enable them to recognise the new “C” Welsh tax code.
Bydd yr Adran Gwaith a Phensiynau yn gwneud y newidiadau angenrheidiol i lwyfannau TG sy'n rhyngwynebu â systemau treth y DU er mwyn eu galluogi i gydnabod y cod treth newydd yng Nghymru, sef "C".