Mae ardrethi annomestig yn darparu ffrwd refeniw hanfodol sy'n cyfrannu at gostau gwasanaethau llywodraeth leol, gwasanaethau yr ydym i gyd yn elwa arnynt. Ymgynghorwyd ar ystod o fesurau i fynd i'r afael â thwyll ac osgoi ardrethi annomestig yn ystod haf 2018, yn dilyn ymarfer casglu tystiolaeth a gynhaliwyd yn 2017. Yn dilyn yr ymgynghoriad,cyhoeddoddLlywodraeth Cymru ystod o fesurau ar 16 Hydref 2018.
Non-domestic rates provide a vital revenue stream that contribute towards the costs of local government services, services that we all benefit from. A range of measures to combat non-domestic rates fraud and avoidance were consulted upon in the summer of 2018, following an evidence gathering exercise that took place in 2017. Following the consultation, the Welsh Governmentannounceda range of measures on 16 October 2018.