There are less than 6 months to go before the first Welsh taxes in almost 800 years – land transaction tax and landfill disposals tax – are introduced in Wales.
Mae llai na chwe mis i fynd nes bydd y trethi cyntaf mewn bron 800 o flynyddoedd yn cael eu cyflwyno yng Nghymru, sef treth trafodiadau tir a threth gwarediadau tirlenwi.