Mae Llywodraeth y DU wedi gwrthod o hyd ac o hyd i adolygu’r fethodoleg ar gyfer ariannu ffermydd a rhoi i Gymru yr holl arian y byddem wedi'i gael pe baem wedi aros yn yr Undeb Ewropeaidd. Yn 2021, cyhoeddodd Canghellor y DU y byddai Cymru'n derbyn £243 miliwn yn llai ar gyfer cymorth amaethyddol dros 3 blynedd, o'i gymharu â'r hyn y byddem wedi rhagweld ei gael pe baem yn dal i gymryd rhan yn rhaglenni Polisi Amaethyddol Cyffredin yr UE.
The UK Government has repeatedly refused to review the farm funding methodology and replace, in full, as promised, the funding Wales would have received had we remained in the European Union.  In 2021, the UK Chancellor announced Wales would receive £243 million less for agricultural support over 3 years, compared to the funding anticipated if we had continued to participate in the EU Common Agricultural Policy programmes.