As said on similar threads, for children born after 06/04/2017, the child element in Universal credit is currently £287.92 per month (£3433.04 per year) for each of the first two children. For the first child born before that date the amount is £333.33 per month (£3999.96 per year).
For information, if a child is disabled they they will receive an additional amount of £156.11 or £487.58 if severely disabled. The etwo child limit does not apply to these disability payments.
So, if the two child limit was lifted, if a family on UC, would gain £3433.03 a year for an extra child, £6866.06 for an extra two children and £10,299.09 for an extra three children, if the overall benefit cap was also lifted.
But if a single parent or family earn just £1 above the threshold for claiming UC, tHey will not be able to go to the stare or their employer and ask for thses tax free payments, because they have more than two children.
So there needs to be a better way than to say that those on UC can have what those just earning that little too much to get benefits can't have.
As others have said, thereneeds to be other support given, breakfast clubs at school, food vouchers, clothing vouchers, budgeting skills, etc.
Otherwise, those currently working and not claiming UC, will give up work or reduce their hours so that they can get UC and have the amount of children they really want, funded by the state, rather than just those they can afford by hard work.