Mae Llywodraeth y DU yn rhoi rhaglen eang a sylweddol ar waith er mwyn diwygio’r gyfundrefn les. Fel rhan o’r rhaglen hon, bwriedir rhoi terfyn ar system Budd-dal y Dreth Gyngor ar 1 Ebrill 2013 a throsglwyddo’r cyllid i Gymru er mwyn sefydlu trefn newydd i roi cymorth tuag at filiau’r dreth gyngor. Roedd trosglwyddo’r cyllid yn cynnwys gostyngiad o 10 y cant a oedd wedi’i seilio ar amcangyfrif Llywodraeth y DU o wariant ar gyfer cyllideb 2013-14.
The UK Government is implementing a wide ranging and significant programme of reform of the welfare system. As part of this, the Council Tax Benefit system is being brought to an end on 1 April 2013 and funding transferred to Wales so that a new arrangement could be put in place to provide support with council tax bills.  The funding transfer included a cut of 10 per cent based on the UK Government’s estimate of expenditure 2013-14 budget.