The WRA will charge interest on an amount of unpaid penalty from the date on which the penalty was due to be paid until is the day it is paid (this includes non-business days.
Bydd ACC yn codi llog ar swm y gosb nas talwyd o’r dyddiad sy’n dilyn y dyddiad y mae’n rhaid talu’r gosb, a hynny nes ei bod yn cael ei thalu.