Family Law Hub

House of Commons Library Briefing published on Child maintenance

A useful reminder of how income is calculated in the CMS formula (including why gross income is used, and annual reviews)

  • The House of Commons Library has published a useful briefing note setting out how Child Maintenance Service

    The note considers how the CMS collates income data, the annual review process (and the periodic income check in cases where the non-resident parent submits their own data), and when a change in income does – and doesn't – have to be reported to the CMS. It also highlights the policy rationale for the 25% threshold for a change in income to affect the child maintenance calculation, and why only the non-resident parent's income is taken into account.

    Download the full briefing from the Parliament website

Practice note, published: 20/12/2018


Published: 20/12/2018


Copyright in the original legal material published on the Family Law Hub is vested in Mills & Reeve LLP (as per date of publication shown on screen) unless indicated otherwise.


The Family Law Hub website relates to the legal position in England Wales and all of the material within it has been prepared with the aim of providing key information only and does not constitute legal advice in relation to any particular situation. While Mills & Reeve LLP aims to ensure that the information is correct at the date on which it is added to the website, the legal position can change frequently, and content will not always be updated following any relevant changes. You therefore acknowledge and agree that Mills & Reeve LLP and its members and employees accept no liability whatsoever in contract, tort or otherwise for any loss or damage caused by or arising directly or indirectly in connection with any use or reliance on the contents of our website except to the extent that such liability cannot be excluded by law.

Bookmark this item