A new transitional relief scheme took effect from 1 April 2023 to support ratepayers affected by the 2023 revaluation.
Daeth cynllun rhyddhad trosiannol newydd i rym ar 1 Ebrill 2023 er mwyn cefnogi talwyr ardrethi y mae ymarfer ailbrisio 2023 yn effeithio arnynt.