Rwy’n gobeithio nad yw’r ymateb hwn yn adlewyrchu agwedd ehangach Llywodraeth y DU tuag at ddatganoli. Rydym yn credu’n gryf fod rhaid parchu a chryfhau datganoli er mwyn sicrhau dyfodol y Deyrnas Unedig. Rwyf wedi ysgrifennu at Ysgrifennydd Ariannol y Trysorlys i fynegi fy siom o ystyried bod Llywodraeth Cymru eisoes wedi darparu cymaint o fanylion ag sy’n bosibl yn y cam hwn o’r broses. Fel yr wyf wedi’i grybwyll wrth Lywodraeth y DU sawl gwaith, bydd y gwaith o ystyried gweithrediad penodol y dreth yn cael ei wneud ar ôl datganoli’r cymhwysedd i Gymru, gan ddilyn proses gyhoeddus drwyadl briodol, yn unol â’n hegwyddorion o ran trethi.
I hope this response is not indicative of the UK Government’s wider attitude towards devolution. We firmly believe that devolution must be respected and strengthened to secure the future of the Union. I have written to the Financial Secretary to the Treasury to express my disappointment given Welsh Government has already provided as much detail as it is able at this stage of the process. As I have outlined to the UK Government on numerous occasions, consideration of the specific operation of the tax will occur after the competence has been devolved to Wales, and will be by means of an appropriately rigorous public process, in line with our tax principles.