The CMS regime sits on top of the Child Support Act 1991 (and its 1991 NI Order), which establishes the formula-based maintenance calculation and the Secretary of State's collection and enforcement role. The Child Maintenance and Other Payments Act 2008 closed the Child Support Agency (CSA) and transferred functions to CMS, and the Welfare Reform Act 2012 reshaped the surrounding benefits architecture that determines parents' assessable income. CMS itself is administered by DWP in Great Britain, with parallel provision in Northern Ireland operated by the Department for Communities under the Child Support (NI) Order 1991.
Operationally, the regime offers two service types: Direct Pay (formula-calculated maintenance paid directly between parents, no fee) and Collect & Pay (CMS collects and transfers, with a 20% paying-parent surcharge and 4% receiving-parent deduction). The 2023 reform Acts each retool one leg of this design. The Child Support Collection (Domestic Abuse) Act 2023 amends ss.4 and 7 of the 1991 Act so that prescribed evidence of relevant domestic abuse (defined by reference to the Domestic Abuse Act 2021 in GB and the Domestic Abuse and Civil Proceedings Act (NI) 2021 in NI) is a statutory route onto Collect & Pay regardless of whether the alleged perpetrator is a paying or receiving parent.
The Child Support (Enforcement) Act 2023 sits on the enforcement side: it allows the Secretary of State to make administrative liability orders without first applying to a magistrates' court — a substantial procedural shortening of the route from non-payment to deductions from earnings, deductions from accounts, and ultimately bailiff or driving-licence sanctions. Crucially, none of ss.2–4 of the 2023 Enforcement Act had been commenced as of March 2026 (PQ 120491), meaning the headline reform has not yet taken effect.
The current reform vehicle is the June 2025 consultation outcome on a 'single maintenance collection and transfer service'. The proposal — to abolish Direct Pay and route all CMS cases through a single state-administered transfer mechanism — would fundamentally alter the service-type architecture established in 2012. The accompanying child-poverty impact assessment estimates a measurable poverty effect, while the Lords Public Services Committee (October 2025) and the Commons Work and Pensions Committee (2025–26 inquiry) have both opened scrutiny of the proposal.
A distinct but adjacent strand is the algorithmic-and-IT layer: the published Algorithmic Transparency Record on CMS predictive-analytics compliance, and the W&P Committee's May 2026 call for written evidence on CMS IT systems 1991–2025, signal that any reform must be deliverable on the existing CS2/2012-scheme IT estate — itself a chronic operational risk.