With less wealth and fewer higher earners, Wales has lower levels of income and wealth inequality than many other parts of the UK (Chief Economist's Report 2020, Welsh Government).
Mae'r taliadau safonol uchel yng Nghymru, ynghyd â'r ffaith bod y tâl wedi mwy na dyblu ers 2021, yn effeithio'n anghymesur ar aelwydydd incwm is a'r rhai sy'n defnyddio llai o ynni.