Finance Bill

Is my hon. Friend saying that if a person’s income fluctuates during the year, but they do not know that it is fluctuating, and do not know the full amount of their income until the end of the year, the child benefit will be treated by one set of rules, whereas if they know how their income is fluctuating and whether they are moving in and out of the zone in which the charge applies, they will be treated in another way?