However, this claim was rejected by the WRA and tax was due on this amount.
os ydych wedi talu swm o dreth yn unol â set o gyfraddau a bandiau, ond mae'r cyfraddau a'r bandiau hynny’n cael eu gwrthod wedi hynny gan Gynulliad Cenedlaethol Cymru (adran 63A DCRhT)