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Guidance Published 1 Apr 2026 Department for Work and Pensions ↗ View on GOV.UK

Child maintenance: how we work out payments: leaflet

This leaflet explains how the Child Maintenance Service works out how much child maintenance a paying parent must pay.

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A step-by-step guide to how child maintenance is worked out by the Child Maintenance Service. It tells you the information used and the things that can affect how it’s worked out.

You will only get a printed copy of this guidance from the Child Maintenance Service if they are dealing with your case. If this applies to you and you’ve not received your copy, please contact the Child Maintenance Service.

Find out more about child maintenance.

If you need this leaflet in a different format

Contact the Child Maintenance Service to ask for:

  • a printed copy of the leaflet
  • a copy of the leaflet in Welsh
  • a different format, such as large print or Braille