How do I calculate how much child maintenance to pay

Child maintenance is essentially a way to ensure your child's everyday needs are met when they're living with just one parent. This is a requirement whether you've split from the other parent or never officially been together.

Keep in mind that child maintenance focusses on financial support and both parents have a role in covering their child's expenses, even if they're not always around for the day-to-day.  Arrangements about spending quality time with your child are handled separately.

It's essential to have a child maintenance agreement if your child is under 16, and this extends to 20 if they're still in full-time education.

You’ll need details of the following for the parent who’ll be paying:

  • their income, including State Pension
  • any benefits they get
  • the number of nights your child stays with them

You can access the governments' child maintenance calculator to give you an estimate.