Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, how many staff the Child Maintenance Service employs; and what the average caseload is per caseworker in the (a) enforcement, (b) calculation and (c) complaints teams.

The Child Maintenance Service (CMS) employs staff across a range of operational functions to support the effective administration of child maintenance arrangements. Staffing levels and the nature of work vary between business areas, including enforcement, calculation and complaints, reflecting the different responsibilities and complexity of activity undertaken within each team.

As of 30 November 2025, CMS employed 4,972 staff. This comprises 4,148 staff employed by the Department for Work and Pensions in Great Britain and 824 staff employed by the Department for Communities in Northern Ireland.

CMS does not routinely apply, or publish, a caseload per caseworker measure. This is because such a metric can be misleading: not all cases have active work attached to them at any given time, while others may generate multiple work items and require different levels of intervention depending on their complexity. Volumes also constantly fluctuate as a case progresses and is therefore only accurate in that moment of time.

While individual caseloads are not calculated, CMS continually monitors workloads and resources across all operational areas to ensure cases are managed effectively. The service is currently resourced at a level appropriate to its operational demand, ensuring that support is directed to the teams and functions where it is most needed.