Yn 2020-21, roedd hynny wedi golygu bod dros 283,000 o aelwydydd incwm isel ac agored i niwed – oddeutu un ym mhob pump – wedi elwa o gael gostyngiad yn eu biliau treth gyngor. O’r rhain, nid oedd angen i oddeutu 226,000 dalu unrhyw dreth gyngor o gwbl.
In 2020-21, this meant that over 283,000 vulnerable and low-income households – around one in five households – benefited from a reduction in their council tax.  Of these, approximately 226,000 paid no council tax at all.