Dechreuodd ACC, a sefydlwyd gan Lywodraeth Cymru, gasglu a rheoli refeniw o ddwy dreth ddatganoledig yng Nghymru, y Dreth Trafodiadau Tir a'r Dreth Tirlenwi, ym mis Ebrill 2018. Dyma'r tro cyntaf i'r corff codi refeniw cenedlaethol adrodd ar gyflawni yn erbyn eiGynllun Corfforaethol 2019 hyd 2022, wedi iddo dderbyn cymeradwyaeth y Gweinidog Cyllid a Threfnydd ym mis Mai 2019.
Established by the Welsh Government, the WRA started collecting and managing revenue from two devolved Welsh taxes, Land Transaction Tax and Landfill Tax, in April 2018. This is the first time the national revenue raising body is reporting on delivery against itsCorporate Plan 2019 to 2022,following approval by the Minister for Finance and Trefnydd in May 2019.