You must check the relevant detailed guidance and legislation for LTT when you're involved with a land transaction in Wales from 1 April 2018.
Mae’n rhaid i chi fwrw golwg ar y ddeddfwriaeth a’r canllawiau manwl perthnasol ar gyfer y Dreth Trafodiadau Tir wrth ddelio â thrafodiadau tir yng Nghymru o 1 Ebrill 2018.