The introduction of the taxes, land transaction tax and landfill disposals tax, resulted in Wales gaining the first specifically Welsh taxes in almost 800 years.
O ganlyniad i gyflwyno'r trethi, y dreth trafodiadau tir a'r dreth gwarediadau tirlenwi, cafodd Cymru’r trethi cyntaf yn benodol i Gymru ers bron i 800 mlynedd.