Child Benefit if your child lives with someone else – GOV.UK
You’ll usually get Child Benefit for 8 weeks after your child goes to live with someone else (eg a friend or relative), if nobody else claims. It can continue for longer if you make contributions to your child’s upkeep.
The Child Benefit Office will tell you if they get another claim for your child. They’ll help you decide who should claim if you can’t decide for yourself.
Contributions to upkeep
You could continue to get payments for more than 8 weeks if you contribute to your child’s upkeep by the same amount or more than the Child Benefit payment.
Upkeep includes clothes, presents, food and pocket money and financial contributions to provide your child with somewhere to live.
You must contact the Child Benefit Office if your circumstances have changed.
You can make your contributions weekly, monthly or in a lump sum to cover a set period. If you miss one or two payments over a long period, the Child Benefit Office may treat this as if you have contributed for the whole period.
The Child Benefit Office will treat contributions for more than one child as being split equally, unless you ask them to consider something else.
Your contributions will still count if more than one person is contributing for the same child. The total contributions have to be worth at least as much as the Child Benefit you get.