From April 2018, Landfill Disposals Tax (LDT) replaced Landfill Tax in Wales and is collected and managed by the Welsh Revenue Authority (WRA).
O fis Ebrill 2018, disodlwyd y Dreth Tirlenwi yng Nghymru gan Dreth Gwarediadau Tirlenwi a chaiff ei chasglu a’i rheoli gan yr Awdurdod, yr awdurdod treth newydd ar gyfer Cymru.