From April 2018, the Welsh Revenue Authority will be responsible for collecting and managing landfill disposals tax and land transaction tax – the two taxes being devolved to Wales.
O fis Ebrill 2018 ymlaen, Awdurdod Cyllid Cymru fydd yn gyfrifol am gasglu a rheoli’r dreth gwarediadau tirlenwi a’r dreth trafodiadau tir – sef y ddwy dreth sy’n cael eu datganoli i Gymru.