Beth oedd y newid disgwyliedig mewn refeniw o ganlyniad i'r gwahaniaeth mewn cyfraddau treth tir y doll stamp a'r dreth trafodiadau tir ar gyfer eiddo preswyl fesul band, fesul blwyddyn ar gyfer gweddill y tymor Cynulliad cyn cyhoeddiad yr Ysgrifennydd Cabinet ar 11 Rhagfyr 2017?
Revenue forecasts for land transaction tax were published in the draft Budget on 3 October, with accompanying information in the Tax Policy Report and Bangor Business School’s scrutiny and assurance report. The revenue forecasts will be updated in the final Budget on 19 December alongside an update to Bangor Business school’s report. Further information will be published in the impact assessment accompanying the regulations for the rates and bands of land transaction tax in January 2018. The most recent forecast for stamp duty land tax revenues in Wales was published by the Office for Budget Responsibility as part of its Economic and Fiscal Outlook on 22 November.