In September 2018, Dyfed Edwards was appointed Deputy Chair, having served as a Non-Executive Member of the Welsh Revenue Authority (WRA) Board since October 2017.
Ym mis Medi 2018, penodwyd Dyfed Edwards yn Ddirprwy Gadeirydd, ar ôl bod yn Aelod Anweithredol o Fwrdd Awdurdod Cyllid Cymru (ACC) ers mis Hydref 2017.