Tax regulations for Land Disposal Tax (LDT), Land Transaction Tax (LTT) and Welsh Rates of Income Tax (WRIT) had all passed.
Roedd rheoliadau treth ar gyfer y Dreth Gwarediadau Tir (TGT), y Dreth Trafodiadau Tir (TTT) a Chyfraddau Treth Incwm Cymru (WRIT) i gyd wedi pasio.