Bydd Llywodraeth Cymru yn cyflwyno'r syniad am dreth ar dir gwag i brofi pwerau Deddf Cymru 2014, dywedodd Ysgrifennydd y Cabinet dros Gyllid, Mark Drakeford heddiw.
The Welsh Government will put forward the vacant land tax idea to test the Wales Act 2014 powers, Cabinet Secretary for Finance Mark Drakeford said today.