Those that sell their former main residence within three years are usually eligible for a refund of the difference between the higher rates and main rates LTT on the original transaction.
Mae'r rhai sy'n gwerthu eu prif breswylfa flaenorol o fewn tair blynedd fel arfer yn gymwys i gael ad-daliad o'r gwahaniaeth rhwng y cyfraddau uwch a'r prif gyfraddau TTT ar y trafodiad gwreiddiol.