Child maintenance calculations can vary between countries, and both France and the UK have their own systems for determining child maintenance payments.
United Kingdom (UK):
In the UK, child maintenance payments are typically determined by the Child Maintenance Service (CMS), which is a government agency. The CMS uses a formula to calculate the amount of child maintenance that the non-residential parent (the parent who doesn’t have the main day-to-day care of the child) should pay. The formula considers factors such as the non-residential parent’s gross income, the number of children involved, and the number of nights the children spend with the non-residential parent.

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