There has been concern for many years at the substantial transfers from local authorities in Wales to HM Treasury, via the Welsh Government, as a result of this complex system.
Bu pryderon ers sawl blwyddyn ynghylch y trosglwyddiadau sylweddol o’r awdurdodau lleol yng Nghymru i Drysorlys Ei Mawrhydi, drwy Lywodraeth Cymru, o ganlyniad i’r system gymhleth hon.