Independent Case Examiner (ICE) — Child Maintenance Service (CMS) updates (2016–2026)
The Independent Case Examiner (ICE) investigates complaints about the Child Maintenance Service (CMS) after the CMS internal complaints process has been completed.
ICE sits between CMS and the Parliamentary and Health Service Ombudsman (PHSO).
Complaint route:
CMS → ICE → MP → PHSO
ICE is one of the main bodies reviewing serious CMS maladministration.
Key ICE (last 10 years)
2016–2018
Large volume of CMS complaints continued
delays, arrears disputes, wrong assessments
2019
ICE annual reports showed CMS among the highest complaint areas in DWP-related services
poor communication + delay
2020
COVID increased complaint backlogs
major delays in investigations
2021
ICE highlighted rising complaints involving Collect & Pay and enforcement
payment failures
2022
Parliament linked ICE findings with NAO criticism of CMS
maladministration concerns
2023
ICE annual report showed continued high levels of upheld CMS complaints
service failures persisted
2024
complaints focused on domestic abuse cases + Direct Pay disputes
stronger reform pressure
2025
delays, incorrect calculations and missed enforcement remained key complaint themes
repeat failures
2026
ICE continues handling large CMS caseload with focus on “avoidable injustice”
administrative reform still ongoing
What ICE commonly finds
1. Delay
Examples:
- reassessment taking too long
- enforcement delayed for months or years
- complaints not answered properly
- arrears left unresolved
This is the single biggest issue.
2. Wrong maintenance calculations
Examples:
- wrong income figures used
- self-employed income disputes
- historic arrears errors
- incorrect liability decisions
3. Poor communication
Examples:
- incorrect advice from CMS staff
- contradictory letters
- missing documents
- failure to explain decisions
4. Failure to follow process
Examples:
- missed safeguarding procedures
- poor domestic abuse handling
- failure to escalate enforcement
- paternity dispute mishandling
ICE annual reports
ICE reports repeatedly show:
CMS is one of the most complained-about services
especially for:
- financial hardship
- arrears disputes
- enforcement failures
- prolonged unresolved cases
ICE often recommends:
- apology
- compensation for distress
- correction of records
- repayment of wrongly charged sums
- faster enforcement action
Official reports:
Independent Case Examiner official reports
https://www.gov.uk/government/organisations/independent-case-examiner/about?utm_source=chatgpt.com
Relationship with Parliament
Although ICE is not Parliament itself, its findings are often used by:
- Work and Pensions Committee
- Public Accounts Committee
- National Audit Office
- Parliamentary and Health Service Ombudsman
This creates strong pressure for CMS reform.
Many later reforms came after repeated ICE findings.
Major reform areas linked to ICE complaints
2024
Removal of £20 application fee
2024
Faster enforcement through administrative liability orders
2025
Plan to remove Direct Pay
stronger domestic abuse protections
improved arrears recovery
These issues matched years of ICE complaints.
Simple summary
ICE often finds that CMS problems are caused by:
maladministration rather than just missed payments
This includes:
- wrong decisions
- avoidable delay
- poor complaint handling
- incorrect legal process
- financial injustice
ICE is often where the strongest evidence first appears before cases reach Ombudsman or Parliament.
Parliamentary and Health Service Ombudsman (PHSO) — Child Maintenance Service (CMS) updates (2016–2026)
The Parliamentary and Health Service Ombudsman (PHSO) deals with complaints about the Child Maintenance Service (CMS) after:
CMS complaint process
Independent Case Examiner (ICE)
referral by your MP to PHSO
This has been one of the biggest routes for serious CMS maladministration cases.
Key PHSO timeline (last 10 years)
Year
PHSO Update
Main Issue
2016–2020
Repeated upheld complaints involving CMS and legacy CSA cases
delays, wrong calculations, missed enforcement, poor communication
2021
Rising complaints about CMS service delays and incorrect decisions
complaints route strengthened via MP referrals
2022
Parliament increased scrutiny after NAO report
enforcement failures + arrears growth
Jan 2023
Major upheld case: father wrongly paid £8,500+
CMS failed to handle paternity dispute correctly
2024
More complaints linked to Direct Pay, enforcement and domestic abuse issues
stronger pressure for reform
2025
New published CMS complaint decisions continued
delays, maladministration, payment errors
2026
Updated complaints guidance + DWP complaint statistics show CMS remains a major complaint area
“You’ve got it wrong” biggest complaint reason
Most important PHSO case
2023 — wrongly paid £8,580 returned
Parliamentary and Health Service Ombudsman found CMS had seriously failed a father who disputed paternity.
What happened
The father told CMS in 2014 he did not believe he was the biological parent.
CMS should have opened a formal paternity dispute immediately.
Instead:
- they gave incorrect advice
- delayed action for years
- failed to properly investigate
Only in 2019 did they properly open the dispute.
As a result, he unnecessarily paid:
£8,580.39
in child maintenance.
PHSO ordered CMS to repay the full amount and recognised major emotional distress.
https://www.ombudsman.org.uk/failings-led-man-unnecessarily-paying-over-ps8500-child-maintenance?utm_source=chatgpt.com
This became one of the best-known CMS Ombudsman cases.
Common PHSO complaint themes
1. Delays
Cases taking years before:
- enforcement starts
- reassessment happens
- arrears action begins
2. Wrong calculations
Examples:
- incorrect income used
- self-employed income ignored
- arrears miscalculated
- parent wrongly pursued
3. Poor communication
Examples:
- incorrect advice
- missing letters
- no callbacks
- contradictory decisions
4. Failure to enforce
Especially:
- unpaid arrears
- delayed liability orders
- failure to pursue assets
- missed court deadlines
5. Domestic abuse concerns
Especially where Direct Pay forced contact with abusive ex-partners.
This later drove Parliament reforms.
2026 complaint statistics
Latest DWP figures show CMS remains a major complaints area.
Most common complaint reason:
“You’ve got it wrong” = 44%
Second:
“You take too long”
This strongly matches PHSO findings.
https://www.gov.uk/government/statistics/dwp-complaints-statistics-to-december-2025/dwp-complaints-statistics-to-december-2025?utm_source=chatgpt.com
Official complaint route
CMS → ICE → MP → PHSO
You cannot usually go directly to PHSO.
You must:
- complain to CMS
- go to ICE
- ask your MP for referral to PHSO
Official guidance confirms this.
https://www.gov.uk/child-maintenance-service/complaints-and-appeals?utm_source=chatgpt.com
Simple summary
PHSO findings over the last decade show:
CMS problems are usually not just “late payments”
They are often:
- maladministration
- wrong legal decisions
- poor investigations
- years of avoidable delay
- serious financial injustice
This is why PHSO cases became a major part of Parliament pressure for CMS reform.
Main message
Major Report — April 2023
Report:
Children in Poverty: Child Maintenance Service
Full report / Government response
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
WPC headline conclusion
MPs said:
a stronger CMS would directly reduce child poverty
and current failures were pushing many single-parent families deeper into hardship.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
Main findings
1. Child maintenance = anti-poverty policy
Committee treated CMS not just as admin—but as a major anti-poverty system.
This was a major shift in parliamentary framing.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
2. Direct Pay often failed
Many “Direct Pay” cases were not genuinely working.
Parents often reported non-payment without quick CMS intervention.
This later drove Government’s 2025 decision to remove Direct Pay.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
3. Domestic abuse protections were too weak
The Committee strongly criticised cases where abuse survivors had to maintain unsafe contact.
This supported the later Domestic Abuse Act reforms.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
4. Self-employed loopholes
The Committee focused heavily on parents hiding income through:
- limited companies
- dividends
- property income
- complex self-employment structures
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
5. Application fee criticism
The £20 application fee was criticised as a barrier for vulnerable parents.
This fee was later removed in 2024.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/1675/report.html?utm_source=chatgpt.com
2025 new inquiry
In July 2025 MPs opened a fresh CMS inquiry asking:
- is CMS too adversarial?
- does it support abuse victims enough?
- how should family-based agreements work better?
- should the system be redesigned more fundamentally?
https://committees.parliament.uk/committee/164/work-and-pensions-committee/news/208804/mps-open-child-maintenance-service-inquiry/?utm_source=chatgpt.com
This is still shaping future reform.
Public Accounts Committee (PAC) reports on CMS
The House of Commons Committee of Public Accounts (PAC) focused heavily on whether the Child Maintenance Service (CMS) delivers value for money and whether DWP was actually improving outcomes for children.
The biggest PAC report was in 2022, following the National Audit Office investigation.
Major PAC Report — June 2022
Report:
Committee of Public Accounts
PAC’s headline conclusion
PAC said:
DWP was achieving “no more for children” than the failed Child Support Agency (CSA)
and around:
1.8 million children
were still receiving no support from the non-resident parent.
This was one of the strongest parliamentary criticisms of CMS.
https://publications.parliament.uk/pa/cm5803/cmselect/cmpubacc/255/summary.html?utm_source=chatgpt.com
PAC’s main findings
1. CMS reforms had not improved outcomes
Ten years after reform, outcomes were not clearly better than under CSA.
PAC said DWP had focused too much on reducing government cost rather than improving child outcomes.
https://publications.parliament.uk/pa/cm5803/cmselect/cmpubacc/255/summary.html?utm_source=chatgpt.com
2. Too many children got nothing
Around half of children in separated families still received no maintenance support.
This became central to later reform debates.
https://publications.parliament.uk/pa/cm5803/cmselect/cmpubacc/255/summary.html?utm_source=chatgpt.com
3. Enforcement was too slow
PAC criticised long delays in enforcement and rising arrears.
Parents were waiting too long before deductions, liability orders, and recovery action happened.
https://publications.parliament.uk/pa/cm5803/cmselect/cmpubacc/255/report.html?utm_source=chatgpt.com
4. Fraud + hidden income concerns
PAC criticised DWP for not properly detecting:
- undeclared income
- self-employed under-reporting
- maintenance fraud
It said too much responsibility was pushed onto receiving parents.
https://committees.parliament.uk/writtenevidence/149292/html/?utm_source=chatgpt.com
5. Domestic abuse concerns
PAC highlighted risks where survivors were pushed into unsafe payment arrangements, especially under Direct Pay.
This later helped drive legislative reform.
https://publications.parliament.uk/pa/cm5803/cmselect/cmpubacc/255/report.html?utm_source=chatgpt.com
PAC recommendations
PAC told DWP to:
- review why families avoid CMS
- improve fraud detection
- speed up enforcement
- reduce arrears growth
- improve support for abuse survivors
- better link CMS policy to child poverty reduction
Government formally responded in Treasury Minutes. Government response (Treasury Minutes)
https://committees.parliament.uk/work/6434/child-maintenance/publications/?utm_source=chatgpt.com
What the NAO said in 2022 (major report)
Report:
NAO Child Maintenance Report (March 2022)
This was the most important NAO report on CMS in the last decade.
Main findings:
1. Government reduced costs — but not outcomes
The Department for Work and Pensions reduced taxpayer cost by 40% (£242 million) since 2011–12 and reduced net costs further by charging parents fees. CMS cost taxpayers £322 million in 2020–21.
Child Maintenance
But:
there was “no clear change” in the number of effective child maintenance arrangements.
2. Fewer families used CMS than expected
Government expected statutory use to fall from 46% to 33%.
Child Maintenance
Actual use fell to only 18% by 2019–20.
This meant many parents were not receiving support.
3. Families with NO maintenance arrangement increased sharply
This was one of the most serious findings.
Families with no arrangement rose from:
25% → 44%
between 2011–12 and 2019–20.
Child Maintenance
4. Arrears could hit £1 billion
NAO warned:
unless stronger action happened,
Collect & Pay arrears could reach £1 billion by 2031.
This became a major Parliament issue.
Child Maintenance
5. Enforcement was still too slow
It could take years before unpaid maintenance was recovered.
Average debt before civil enforcement:
£2,200
After enforcement:
£2,600
This showed delays were worsening arrears.
Child Maintenance
6. Fraud and hidden income concerns
NAO said DWP had not properly estimated:
- undeclared income
- self-employed under-reporting
- fraud and error
This later became a major Work and Pensions Committee concern.
https://publications.parliament.uk/pa/cm5803/cmselect/cmworpen/272/summary.html?utm_source=chatgpt.com
NAO recommendations
NAO said DWP should:
- understand why people avoid CMS
- improve Direct Pay and Collect & Pay
- review arrears write-off strategy
- align welfare + child maintenance rules better
- improve enforcement speed
- potentially return to Parliament for legislative change
Child Maintenance
What changed after NAO pressure
These later reforms followed strong NAO pressure:
2024
Removal of £20 CMS application fee
2024
Administrative liability orders for faster enforcement
2025
Government plan to remove Direct Pay
stronger domestic abuse protections
ongoing reform of arrears collection
https://commonslibrary.parliament.uk/new-regulations-remove-the-application-fee-for-the-child-maintenance-service/?utm_source=chatgpt.com
Simple summary
The NAO basically said:
CMS became cheaper for government
…but not better enough for children.
Too many parents still:
- receive nothing
- wait too long
- face huge arrears
- struggle with abuse-linked cases
- cannot get enforcement quickly
That 2022 report drove much of the major CMS reform debate from 2022–2026.
Most Common CMS Problems and Challenges
1. Incorrect Income Calculations
Common Issues
- Paying parent hides income.
- Self-employed income appears artificially low.
- Dividends/company structures reduce assessable income.
- CMS uses outdated HMRC figures.
What You Can Do
You can ask for:
- A mandatory reconsideration
- A variation (special review of income)
A variation may apply if the paying parent:
- Has unearned income
- Uses company assets personally
- Diverts income through a business
- Has lifestyle inconsistent with declared earnings
Official guidance:
Challenge a Child Maintenance Decision
2. Self-Employed Parent Problems
This is one of the biggest complaints about CMS.
Typical Problems
- Income declared very low
- Cash-in-hand work
- Limited company salary manipulation
- Deliberate reduction of earnings
Evidence That Helps
Gather:
- Social media evidence of lifestyle/business activity
- Companies House filings
- Property ownership
- Vehicle ownership
- Advertising/business websites
- Bank statements (where available legally)
Official company records:
Companies House
3. Non-Payment of Child Maintenance
Common Situations
- Parent refuses to pay
- Frequent missed payments
- Stops paying after job change
- Uses Direct Pay to avoid records
CMS Enforcement Powers
CMS can:
- Deduct directly from wages
- Take money from bank accounts
- Use bailiffs/enforcement agents
- Apply for driving licence suspension
- Apply for prison in severe cases
Enforcement information:
CMS Enforcement Powers
4. Delays and Communication Problems
Common Complaints
- Long phone waits
- Lost paperwork
- Conflicting advice
- Delays updating cases
- Repeated evidence requests
Best Practices
- Keep a written timeline.
- Save every letter/email.
- Record dates/times of calls.
- Ask for:
- Agent name
- Reference number
- Notes added to file
Tip
Always follow phone calls with written confirmation if possible.
5. Shared Care Disputes
CMS reduces payments depending on overnight stays.
Common Arguments
- Disagreement over number of nights
- Informal arrangements not recognised
- Lack of proof
Useful Evidence
- School records
- Text messages
- Parenting calendars
- Medical appointment records
- Travel records
6. Domestic Abuse and Safety Concerns
Some parents report that CMS processes can increase stress where abuse exists.
Issues
- Forced communication
- Financial control
- Harassment through repeated disputes
- Safety concerns over personal information
Protections Available
CMS can:
- Use Collect and Pay
- Restrict information sharing
- Add safeguarding notes
Support services:
7. Arrears (Back Payments)
Problems
- Historic unpaid maintenance
- Disputes over amounts owed
- Old debts suddenly enforced
Important
CMS arrears generally remain enforceable even years later.
Ask for:
- Full arrears breakdown
- Payment history
- Written calculations
How to Challenge a CMS Decision
Step 1: Mandatory Reconsideration
You normally have 1 month to challenge a decision.
Ask CMS:
- What evidence was used?
- What HMRC year was used?
- Was all information considered?
Step 2: Appeal Tribunal
If reconsideration fails, you can appeal to an independent tribunal.
Tribunal information:
Appeal a Child Maintenance Decision Tribunal
Common Evidence Checklist
Useful documents include:
- Payslips
- Tax returns
- Bank statements
- Child care schedules
- School letters
- Proof of missed payments
- Text/email communications
- Companies House documents
- Property records
CMS Complaints Procedure
If the service itself handled your case badly:
First
Complain directly to CMS.
Then
Escalate to:
- Independent Case Examiner (ICE)
Official complaints route:
CMS Complaints Process
Parents Living Abroad
CMS can sometimes enforce maintenance internationally.
This depends on:
- Which country the other parent lives in
- Reciprocal enforcement agreements
International maintenance guidance:
Child Maintenance if One Parent Lives Abroad
Practical Survival Tips
Do:
- Keep everything in writing
- Save screenshots/messages
- Use recorded delivery for important letters
- Check calculations carefully
- Request call notes
- Stay factual and calm in communications
Avoid:
- Verbal-only agreements
- Cash payments without records
- Missing appeal deadlines
- Emotional messages to CMS staff
Useful Organisations
- Citizens Advice
- Family Rights Group
Biggest Real-World CMS Frustrations
Many parents commonly report:
- Slow enforcement
- Difficulty proving hidden income
- Stress from repeated reassessments
- Inconsistent case handling
- Problems with self-employed calculations
But cases are usually stronger when:
- Evidence is organised
- Communication is documented
- Deadlines are met
- Complaints are escalated properly