The deadline for the Section 52 outturn statements was brought forward alongside that of the Revenue Outturn statements to allow effective collection and validation of data.
Cafodd y dyddiad cau ar gyfer datganiadau alldro Adran 52 ei symud ymlaen ochr yn ochr â'r dyddiad cau ar gyfer datganiadau Alldro Refeniw fel y gellid casglu a dilysu data'n effeithiol.