Where changes are made to predecessor UK taxes by the UK government that will affect the Welsh block grant adjustment and the overall amount of Welsh Government resources
Pan wneir newidiadau i drethi rhagflaenol y DU gan Lywodraeth y DU a fydd yn effeithio ar yr addasiad i grant bloc Cymru ac, felly, adnoddau Llywodraeth Cymru yn gyffredinol