Ar 13 Chwefror 2018, gwnaeth y Ysgrifennydd y Cabinet dros Gyllid Llafar yn y Siambr ar:Cynllun Gwaith Polisi Treth 2018, gan gynnwys Trethi Newydd(dolen allanol).
On 13 February 2018, the Cabinet Secretary for Finance made an Oral Statement in the Siambr on:Tax policy work plan 2018, including new taxes(external link).