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Child Maintenance Service (CMS)

Guides, information and evidence to help people understand Child Maintenance Service calculations, payments, shared care, arrears, enforcement, challenges, appeals, records, law and related issues.

Find the CMS information you need

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financial hardship support: CMS Payments, Arrears & Help

Child maintenance helps meet children's financial needs. However, changes in income, disputed calculations, arrears, collection fees and enforcement action can place considerable pressure on families. Paying and receiving parents may both need clear information about their rights and the steps available when a child maintenance arrangement is not working as expected.

If you are looking for financial hardship support because of Child Maintenance Service (CMS) payments, deductions or disputed arrears, Right First Time UK offers independent information to help you understand the issues, find relevant guides and identify appropriate official support.

Understanding CMS Payments and Financial Difficulties

Our Child Maintenance Service information hub includes guidance on:

  • Maintenance calculations: How income and other statutory factors may affect the amount of child maintenance assessed. See our CMS calculations guide.
  • Changes of circumstances: Reporting changes in employment, income, benefits, shared care or household arrangements to the appropriate service. Read the changes of circumstances guide.
  • Arrears and enforcement: Understanding missed payments, Collect & Pay, collection fees, Deduction from Earnings Orders and enforcement procedures.
  • Shared care: How relevant overnight arrangements and supporting evidence may affect a maintenance calculation. Find more detail in our shared care and overnight stays guide.
  • Challenging decisions: Finding information about mandatory reconsiderations, appeals and other applicable statutory routes.
  • Complaints and records: Raising service concerns, requesting information and keeping evidence of payments and correspondence. Use our CMS complaints guide for the relevant process.

What to Do When Maintenance Causes Financial Pressure

If maintenance payments or deductions leave you struggling with essential living costs, check the calculation notice, the income information used and any changes that CMS should know about. Keep copies of payslips, benefit statements, bank records, CMS letters and evidence of shared care where relevant.

Financial difficulty does not automatically cancel a legal maintenance obligation. The correct process depends on whether you are reporting a change, disputing an assessment, challenging arrears or complaining about poor administration. The rules and time limits may differ, so always check the decision notice and current official guidance.

Finding Financial Help and Resolving Disputes

Accessing financial hardship support may include checking benefit entitlements, exploring local emergency assistance and speaking to a free specialist debt-advice organisation. Our Financial Support hub provides further signposting. Parents can also use our existing guides to understand CMS decisions and prepare relevant evidence.

Start with the relevant guides linked above, which explain calculations, changes, shared care, complaints and wider financial support.

Right First Time UK provides information and signposting, not official CMS decisions, regulated debt advice or legal representation. Our aim is to help parents understand the available procedures while recognising the financial needs and wellbeing of children and both households.

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Start here & core CMS

Child Maintenance: Rights, Responsibilities & Fairness

England, Scotland and Wales use the Great Britain Child Maintenance Service administered by the Department for Work and Pensions. Northern Ireland has its own Child Maintenance…

OPEN GUIDE

Who Does the Child Maintenance Service Actually Help?

A comparison of the practical assistance, collection services, state-backed enforcement, legal processes, fees and protections available to Receiving Parents and Paying Parents.

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Child Maintenance Application Guide: Rights & Evidence

The Child Maintenance Service in England, Scotland and Wales is administered by the Department for Work and Pensions. Northern Ireland has its own Child Maintenance Service…

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Child Maintenance FAQs: Legal Rights & Guidance

These additions use current GOV.UK, DWP and HMCTS guidance and sit above the full FAQ below.

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Understanding Your Rights with CMS Service Standards

These additions use current DWP, CMS, ICO and GOV.UK guidance and sit above the complete original guide.

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Child Maintenance: Navigating Special Situations

These additions use current GOV.UK and official legal sources and sit alongside the full guide below.

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Child Maintenance Service: Common Issues & Solutions

These additions use current GOV.UK and DWP guidance and sit above the full original guide.

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Calculations, income & changes

Guide to Child Maintenance Calculations in the UK

This guide is mainly based on the statutory scheme for England, Scotland and Wales . Northern Ireland has its own CMS administration, although its calculation system follows the…

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Complete CMSF4216 Income Declaration Form Guide

Keep this form open alongside the guide so you can follow each question in order.

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Child Maintenance Service: Unearned Income Explained

What CMS “unearned income” actually means, what can count, the £2,500 annual threshold, and the important role of HM Revenue & Customs (HMRC).

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Understanding Variations and Special Circumstances

The points below are current CMS / GOV.UK rules added to help visitors distinguish the statutory variation categories from general financial hardship.

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Understanding Changes of Circumstances in Child Support

These additions use current GOV.UK, legislation.gov.uk and ICO material and sit alongside the full guide below.

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CMS Child Maintenance Payment Framework Overview

This section updates and qualifies the November 2025 framework using current DWP and GOV.UK guidance. The original document remains preserved below.

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Shared care & living arrangements

CMS Living Arrangements, Shared Care & Overnight Stays

What parents need to know about day-to-day care, overnight shared care, changes in living arrangements, evidence and how those arrangements can affect child maintenance.

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Shared Care & Parenting Arrangements

Public information guide: This page brings together the supplied shared-care guidance and direct links to relevant official UK sources.

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Payments, arrears & enforcement

Direct Pay: Process, Rights, and Accountability Guide

For England, Scotland and Wales, GOV.UK confirms that CMS payment arrangements can be managed through Direct Pay or Collect & Pay . Under Direct Pay, the paying parent pays the…

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Collect & Pay: Fees, Rights, and Enforcement Guide

These additions use current GOV.UK, legislation.gov.uk and ICO sources and are intended to sit alongside the original guide rather than replace it.

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Guide to Child Maintenance Arrears & Payments

These additions use current GOV.UK, DWP and legislation.gov.uk sources and sit alongside the full guide below.

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Disputing Incorrect CMS Records & Arrears: Your Rights

These additions use current GOV.UK, HMCTS, ICO and legislation.gov.uk sources. They sit alongside the full guide below.

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Understanding CMS Enforcement Powers and Rights

These additions use current GOV.UK, DWP statistics and collection/enforcement guidance.

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Understanding Deduction From Earnings Orders (DEO)

These additions use current GOV.UK, legislation.gov.uk and ICO material and are intended to sit alongside the full original guide below.

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CMS 60% Protected Earnings Rule (DEO) Guidance

For a Child Maintenance Service Deduction from Earnings Order (DEO) , the protected earnings proportion is 60% of the liable person's net earnings for the relevant pay period .

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Understanding CMS Liability Orders and Your Rights

GOV.UK describes a liability order as legal recognition that a parent failed to pay a specified amount of child maintenance for a specified period.

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Child Maintenance Service Liability Orders

A full guide to understanding, challenging and appealing a CMS liability order, including the laws, court powers, evidence people should obtain and the important distinction…

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CMS Collection Fees: What Are Paying Parents Actually Paying For?

Right First Time UK is not claiming as an established fact that an individual Paying Parent's 20% collection fee is directly handed to a solicitor representing the Receiving…

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Challenge decisions, complaints & tribunals

Challenging Child Maintenance Service Decisions Guide

These additions use current GOV.UK, DWP, HMCTS and legislation sources.

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Challenge CMS Decisions: A Guide for Parents

Incorrect CMS decisions can have real consequences for either household and therefore for children. The strongest challenge is usually to identify the precise statutory decision,…

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Guide to Challenging Child Maintenance Decisions

GOV.UK says that if you disagree with a CMS decision about the amount of child maintenance, you can ask for a Mandatory Reconsideration . You must normally ask within 30 days of…

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Appeals & Tribunals: Rights & Child Maintenance

These additions use current GOV.UK, HM Courts & Tribunals Service, DWP and tribunal-procedure sources. They sit alongside the full guide below.

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Guide to Building a CMS Tribunal Evidence Pack

The sections below add current GOV.UK, HMCTS, DWP and primary-law links to support the handbook.

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Child Maintenance Service Complaints Guide

These additions use current GOV.UK, PHSO, HMCTS and DWP guidance and sit alongside the full guide below.

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Understanding the Independent Case Examiner (ICE)

These additions use current GOV.UK, DWP, ICE and Parliamentary Ombudsman guidance.

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How to Identify Errors in a CMS Case

The diagrams below are useful for identifying possibilities, but the safest approach is to prove a specific discrepancy using CMS records, HMRC records, payment evidence and the…

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Law, guidance & case correction

UK Child Maintenance Service Legal Framework Overview

The statutory scheme is governed by a combination of Acts of Parliament, statutory instruments, tribunal and court interpretation, and DWP operational guidance.

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Child Maintenance Law & Case Correction Hub

A practical guide to the laws governing Child Maintenance Service calculations, revisions, supersessions, variations, shared care, income, pensions, unearned income, evidence and…

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Child Maintenance Decision Makers' Guide

What the DWP's own Child Maintenance Service guidance says, what changed on 18 August 2026, and how parents can use the guidance to challenge CMS decisions, shared-care findings,…

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Understanding Scottish Child Maintenance Laws

Scotland sits inside the Great Britain CMS scheme, but Scots family law adds separate concepts and remedies. The safest approach is to identify whether the issue is a CMS…

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Child Maintenance in Northern Ireland: Key Guidelines

Northern Ireland has its own statutory administration and guidance. The Department for Communities administers NI child maintenance, and NI appeals and complaints use Northern…

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Records, FOI & transparency

Request Your DWP Data Subject Access Information

The DWP itself now expressly lists Child Maintenance Service account information and evidence used in a dispute or investigation as examples of information you can request.

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CMS FOI Helper: Streamline Your Requests Easily

CMS FOI Auto Helper is a browser-based assistant designed to help you create and manage Freedom of Information (FOI) requests

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Child Maintenance Service UK: Transparency Portal

Official GOV.UK guide to child maintenance, applications, payments, enforcement, parentage disputes, complaints and contact information.

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Understanding CMS Case Areas and Departments

CMS checks whether the child and applicant are eligible, collects information about the parents and child, and can seek information from employers, government organisations,…

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CMS Download Resources

Strong template letters, evidence tools and complaint resources for parents dealing with the Child Maintenance Service. These resources are designed to help people explain issues…

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Understanding CMS Child Maintenance Assessments

The current DWP guide was updated on 1 April 2026, while the Child Maintenance Decision Makers' Guide was updated on 29 May 2026. These are the most useful official starting…

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IT systems, AI & accountability

CMS IT Contracts, Communications & Errors

DWP spending records repeatedly identify payments to Tata Consultancy Services for “CMS 2012 Core” and Child Maintenance technology work.

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CMS2012: DWP Digital Governance, Operations and Accountability Hub

Only claims with public evidence from GOV.UK, NAO, Parliament, ICO, Ombudsman, DWP Digital, public procurement records, or credible public reports clearly marked by evidence…

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CMS AI, Algorithms, Automation & Data

The strongest primary source is DWP’s Algorithmic Transparency Record for CMS Predictive Analytics Compliance.

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CMS Is Using Predictive Analytics to Score Paying Parents

An official UK Government transparency record confirms that the Child Maintenance Service is using a machine-learning system to predict whether currently compliant paying parents…

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WHAT THE OFFICIAL EVIDENCE NOW TELLS US ABOUT THE CHILD MAINTENANCE SERVICE

This is no longer simply about what parents say online. Official DWP publications, Independent Case Examiner findings and an Upper Tribunal judgment provide important evidence…

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Work and Pensions Committee investigations on CMS

ICE sits between CMS and the Parliamentary and Health Service Ombudsman (PHSO).

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Accountability & Reform

Right First Time UK was created because too many people reported feeling unheard, unsupported, confused, or overwhelmed when dealing with complex public systems.

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Health, disability & safety

Child Maintenance & Disability Rights in the UK

These additions use current DWP, CMS, GOV.UK and Equality Act guidance. Disability does not itself create a special maintenance rate, but disability-related income, benefits,…

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Child Maintenance and Mental Health Support Guide

These additions use current NHS, GOV.UK, DWP and Equality Act guidance and sit alongside the full guide below.

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Domestic Abuse Safety: Support & Legal Rights UK

Domestic abuse can affect women and men. The law focuses on the behaviour and its impact, not the sex of the victim, whether somebody is the Paying Parent or Receiving Parent, or…

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Child Maintenance: Boosting Financial Wellbeing

These additions use current GOV.UK and DWP sources and sit alongside the full wellbeing guide below.

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NEW OFFICIAL EVIDENCE — 24 SEPTEMBER 2026

CMS Customer Experience Survey 2025 to 2026

DWP has published its latest customer-experience research covering Child Maintenance Service customers between April 2025 and March 2026.

What it covers

Overall ease of use, satisfaction, customer characteristics and five experience drivers: Get it Right, Ease of Use, Communicate Clearly, Professional and Supportive, and Trusted.

Sample

The report is based on surveys with 2,313 CMS customers. Fieldwork was independently conducted by IFF Research.

Use figures carefully

This is customer-experience research, not an audit of whether individual maintenance calculations or decisions were legally correct. Read methodology and sampling alongside headline findings.

Official report

Use the full GOV.UK report for tables, subgroup findings, methodology and limitations.

Open DWP CMS survey
Official source published 24 September 2026. Applies to England, Scotland and Wales.

Child Maintenance evidence and campaign resources

CMS Media, Evidence & Transparency HubBrowse official sources, analysis, public evidence and CMS accountability material.CMS Reform CampaignSee RFTUK campaign work on fair calculation, service standards and reform.Official CMS Data Quality EvidenceRead the official evidence and what it means for CMS administrative data quality.

More Child Maintenance help and evidence

CMS Common ProblemsCommon Child Maintenance Service issues, what they mean and practical routes for resolving them.Your Rights & Service ExpectationsUnderstand service standards, fair treatment and what you can expect when dealing with CMS.What Is the Independent Case Examiner?How ICE fits into the complaints process and when unresolved service failures can be escalated.CMS Accountability & ReformEvidence and reform material focused on accuracy, accountability and better decision-making.

Parliamentary CMS meetings, submissions and evidence archive

Find official Parliamentary inquiries, witness submissions, hearing recordings, transcripts, committee reports and Government responses. This archive includes current proceedings and earlier investigations. Evidence from witnesses is attributed to its author; it is not automatically an official finding or an admission by DWP.

Commons Work and Pensions Committee — CMS inquiry (2025–2026)

Hearings on 15 July and 14 October 2026, written submissions, witnesses and official records.

Inquiry and meeting history · All published written evidence · Transcripts and publications
House of Lords Public Services Committee — Child Maintenance inquiry (2025)

April–June 2025 hearings, 2025 committee report, January 2026 Government response, follow-up correspondence and historical submissions.

Reports and oral evidence · Historical written evidence

Written evidence published 14 October 2026

CMS0120 — Jody AtkinsonShared care, evidence handling and tribunal challenges.
CMS0121 — Katherine Hill and Donald HirschResearch on the costs of children spending time in two households.
CMS0122 — Stephen LawsonProposal relating to recovery and enforcement of child maintenance debt.
CMS0123 — Dr Christine DaviesEvidence and proposals concerning affordability and maintenance calculations.
CMS0124 — Work and Pensions CommitteePublished summary of a private briefing with CMS officials held on 15 June 2026.

Hearings and historical records

  • 14 October 2026: Commons oral evidence with Dr Samantha Callan, Michelle Counley, Elisabeth Cooper, Dr Christine Davies, Mari Haapanen and Donald Hirsch. Official event and recording access. A transcript should only be labelled available once Parliament publishes it.
  • 15 July 2026: Commons oral evidence from Gingerbread, Both Parents Matter and Surviving Economic Abuse representatives. Published transcript and records.
  • 2 April, 7 May and 25 June 2025: Lords oral evidence sessions, including researchers, NACSA and DWP officials. Historical transcripts.
  • 14 October 2025: Lords report Reforming the Child Maintenance Service; Government response published 9 January 2026. Report, response and correspondence.

Using this evidence: Check the original submission and publication date. A witness's experience or recommendation is not the same as a judicial finding, committee conclusion, or a formal DWP admission. Parliament does not adjudicate individual CMS complaints.

Latest official CMS figures and transparency

DWP release: 29 September 2026, covering June 2026. The service reported 820,000 arrangements covering approximately 1.1 million children. Since 2012, cumulative unpaid maintenance was reported at £812.9 million. In the June quarter, £117.7 million was due via Collect & Pay, of which £89 million was paid and £28.7 million was unpaid.

Of Collect & Pay paying parents due to pay, 77% paid some maintenance. That is not the same as 77% paying in full. DWP does not measure payment compliance under Direct Pay, so its reported amount due there must not be described as an amount definitely unpaid.

DWP also describes an earlier CMS2012 statistical categorisation problem affecting approximately 2% of debt. This is a historical statistical-method issue, not proof that 2% of current individual arrears assessments are incorrect.

Read DWP's full June 2026 CMS statistics and methodology.

Practical help and campaigns

Editorial review: 16 October 2026. Official publication dates are shown separately. Legislative proposals should not be treated as rules currently in force.