Mae Llywodraeth y DU wrthi’n cynnal ymgynghoriad ynghylch a ddylid datganoli’r dreth stamp i Gymru.  Daw hyn yn dilyn argymhelliad gan y Comisiwn ar Ddatganoli yng Nghymru ('y Comisiwn Silk') yn ei adroddiad 'Grymuso a Chyfrifoldeb: Pwerau Ariannol i Gryfhau Cymru', a gyhoeddwyd ym mis Tachwedd 2012:
The UK Government is currently undertaking a consultation on whether Stamp Duty Land Tax should be devolved to Wales.  This follows a recommendation by the Commission on Devolution for Wales ('Silk Commission') in its report 'Empowerment and responsibility: financial powers to strengthen Wales', which was published in November 2012: