Mewn llythyr a ysgrifennwyd ar y cyd at yr Ysgrifennydd Gwladol dros Waith a Phensiynau, mae'r Gweinidog Gofal Cymdeithasol a Phlant, Huw Irranca-Davies, Arweinydd y Tŷ â chyfrifoldeb dros gydraddoldebau, Julie James, a'r Gweinidog Tai ac Adfywio, Rebecca Evans wedi galw ar Lywodraeth y DU i ailystyried ei pholisïau ar gyfer diwygio trethi a'r system les, oherwydd yr effaith ariannol negyddol y byddant yn eu cael ar y rhai mwyaf difreintiedig.
In a joint letter to the Secretary of State for Work and Pensions, the Minister for Children and Social Care, Huw Irranca-Davies, Leader of the House with responsibility for equalities, Julie James and Minister for Housing and Regeneration, Rebecca Evans, have called on the UK Government to reconsider its tax and welfare reform policies, because of the negative financial impacts they will have on the most disadvantaged.