During 2019-20, billing authorities collected £25 million of arrears and wrote off £6 million as uncollectable.
Yn ystod 2019-20, casglwyd £25 miliwn o ôl-ddyledion o ran blynyddoedd blaenorol gan awdurdodau bilio, a chafodd gwerth £6 miliwn eu dileu fel dyledion drwg.