Child maintenance calculator

If you’re trying to agree on an amount for your family-based arrangement, our calculator can give you an indication of the amount that you could expect to pay or receive.

The calculation is based on the rules that the statutory child maintenance service currently use, so you can also use it if you’re making an arrangement through the statutory service or the courts.

Use the calculator to agree on a child maintenance amount if you’re arranging it yourselves, or to get an idea of the statutory amount the government would work out for you.

Don’t use the calculator if you have a ‘1993 scheme’ or ‘2003 scheme’ case. These are managed by the Child Support Agency (CSA).

What you need to know:

  • the calculator gives an estimate (it won’t cover variations for exceptional circumstances)
  • you need information about your income
  • if you already have a case with the Child Support Agency (CSA) or the Child Maintenance Service and your circumstances have changed, contact the office managing your case - they’ll tell you if your child maintenance payments will change

Check the child maintenance rates before you use the calculator.

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This calculator works out child maintenance for statutory service cases opened after March 2003. The rules used will depend on whether the case is managed by the Child Support Agency (CSA) or the Child Maintenance Service. If you have a CSA case that was opened before March 2003, visit gov.uk for more information.