An additional benefit is that the Act aims to provide an additional tool to stop avoidance of the devolved Welsh taxes when identified.
Un o fanteision ychwanegol y Ddeddf yw y bydd yn ceisio cynnig ffordd arall o atal achosion o osgoi talu trethi a ddatganolwyd i Gymru pan gaiff yr achosion hynny eu nodi.