Ym mis Hydref 2010, cyhoeddodd Llywodraeth y DU y byddai'n diddymu Budd-dal y Dreth Gyngor, gan dorri cyllid ar gyfer cynlluniau i gymryd ei le ar yr un pryd, gan 10% i ddechrau. O ganlyniad, datblygodd Llywodraeth Cymru drefniadau newydd i helpu aelwydydd mewn sefyllfaoedd bregus i fodloni eu hatebolrwydd i dalu'r Dreth Gyngor. Er gwaethaf y diffyg mewn cyllid, cynhaliodd Llywodraeth Cymru yr hawliau llawn am gymorth drwy gynllun fframwaith cenedlaethol sengl, ac mae wedi darparu £22m ychwanegol i ariannu'r cynllun yn 2013-14 a 2014-15. Mae'n Cynllun Gostyngiadau’r Dreth Gyngor wedi amddiffyn tua 320,000 o aelwydydd yng Nghymru.
In October 2010, the UK government announced the abolition of Council Tax Benefit, whilst simultaneously cutting funding for replacement schemes, initially by 10%. Consequently, the Welsh Government developed new arrangements to assist vulnerable households in meeting their Council Tax liability. Despite the shortfall in funding, the Welsh Government maintained full entitlements to support through a single national framework scheme, and has provided an additional £22 million to fund the scheme in 2013-14 and 2014-15. Our Council Tax Reduction Scheme has protected approximately 320,000 Welsh households.