When completing the return, code 002 should be used where full relief is claimed (all consideration given is relieved) and code 052 where partial relief is claimed.
Wrth lenwi'r ffurflen dreth, dylid defnyddio cod 002 pan hawlir y rhyddhad llawn (yr holl gydnabyddiaeth a roddir wedi’i rhyddhau rhag treth) a chod 052 pan hawlir rhyddhad rhannol.