FAQ: Current CMS Rules & Official Answers
These additions use current GOV.UK, DWP and HMCTS guidance and sit above the full FAQ below.
Does Unpaid Maintenance Allow Contact to Be Stopped?
No automatic link exists between the two. GOV.UK says child maintenance is a financial arrangement, while arrangements for seeing a child happen separately. Both parents remain responsible for the costs of raising their children even if they do not see them.
Safety and safeguarding issues are different and should be dealt with through the appropriate family-law or safeguarding route.
Official CMS overviewWhat If the Paying Parent Loses Their Job?
CMS says reportable changes should be reported as soon as they happen. If the Paying Parent no longer has income, this is a change CMS can be told about. Keep dismissal, redundancy, benefit and employment evidence.
Report a changeDoes Every Income Change Alter Maintenance?
Not necessarily. CMS normally uses HMRC income and specific statutory rules. Current guidance says a reported change to the Paying Parent's income may affect maintenance where it changes by 25% or more, or where the Paying Parent has no income.
Income-change rules How CMS calculates incomeCan a Grandparent or Guardian Receive Maintenance?
Yes, in some cases. Current DWP guidance says the person receiving maintenance can sometimes be a grandparent or guardian, not only a biological parent. The important question is who has the child's main day-to-day care and whether the CMS eligibility rules are met.
Official CMS guidanceInternational Cases: CMS Does Not Cover Every Situation
If the child and the person with main day-to-day care live abroad, a new CMS application cannot normally be made. If the Paying Parent lives abroad, CMS can normally help only in limited circumstances, such as where that parent works for certain British organisations.
Where CMS cannot deal with the case, international court enforcement may be possible through Reciprocal Enforcement of Maintenance Orders (REMO).
International child maintenance REMO countriesCan CMS Simply Backdate Maintenance Whenever It Wants?
No. Liability and changes depend on the statutory effective-date rules, the date the case or decision took effect and the particular type of change involved. A retrospective-looking balance does not by itself prove that the effective date is correct.
If you dispute the start date or effective date shown on a decision, check the decision letter and use the appropriate reconsideration or appeal route.
Challenge a CMS decision 2012 Calculation RegulationsCan Arrears Be Challenged?
Yes, but identify what is actually wrong. A disputed balance can arise from an incorrect maintenance decision, effective date, missing Direct Pay credit, payment allocation or administrative record problem.
Not every headline arrears disagreement is a standalone appealable decision. Use MR/tribunal for an appealable CMS decision, while missing-payment or service-handling problems may also need evidence, account reconciliation or a complaint.
CMS payment records Decision challengesWhat Is the Deadline to Challenge a CMS Payment Decision?
GOV.UK says Mandatory Reconsideration must normally be requested within 30 days of the date on the CMS decision letter. If you remain dissatisfied, an appeal to the Social Security and Child Support Tribunal can normally be made within one month of receiving the MR decision.
CMS complaints & appeals SSCS2 appeal formWhat Records Should Direct Pay Users Keep?
CMS tells Direct Pay users to keep payment records and warns that a bank statement may be needed if a payment is reported missing. Standing orders and clear payment references can make disputes easier to reconcile.
Direct Pay guidanceCan I Get the Records CMS Holds About Me?
Yes. DWP's Subject Access Request process can provide CMS account information, correspondence and evidence used in a dispute or investigation.
DWP Subject Access RequestIs a Complaint the Same as an Appeal?
No. DWP says that if you want to challenge a child-maintenance assessment or decision, use Mandatory Reconsideration. A complaint is for the service received — such as delay, poor handling, lost documents or communication failures.
DWP complaints procedureWhat If CMS Records Contain Wrong Personal Data?
If factual personal information is inaccurate or incomplete, UK GDPR rectification rights can be relevant. Data correction is separate from overturning the legal maintenance decision itself.
ICO rectification guidanceQuick Route Finder
Match the problem to the process before sending evidence.
Important: A Complaint or SAR Does Not Stop an Appeal Deadline
If you are challenging the legal CMS decision itself, do not wait for the outcome of a complaint, Subject Access Request or data-correction request before protecting any Mandatory Reconsideration or tribunal deadline.
Official FAQ & CMS Sources
Child Maintenance Service FAQ
The detailed FAQ below preserves all of the content supplied for this page.
Frequently Asked Questions (FAQ)
Child Maintenance Service (CMS), Legal Rights, Evidence Standards, Family Responsibilities & Common Questions
Child maintenance can be complex, particularly where family circumstances change, disputes arise, or parents are navigating the Child Maintenance Service (CMS) for the first time.
This Frequently Asked Questions (FAQ) guide answers some of the most common questions raised by parents, carers, grandparents, and family members.
The information is intended as general guidance and should not replace legal advice where specialist assistance is required.
Can I Stop Contact If Child Maintenance Is Not Paid?
Generally, No.
Child maintenance and child contact are separate legal issues.
A parent should not normally stop a child seeing the other parent simply because child maintenance has not been paid.
The law generally treats:
- Financial support (child maintenance)
- Child arrangements (contact)
as separate matters.
Why?
The welfare and best interests of the child should remain the primary consideration.
Children usually benefit from maintaining safe and positive relationships with both parents where appropriate.
What Should You Do Instead?
If child maintenance is unpaid:
- Contact CMS
- Report missed payments
- Keep records
- Use the appropriate review or enforcement processes
Avoid involving children in financial disputes.
Can Child Maintenance Stop If Contact Is Denied?
Generally, No.
A parent cannot usually stop paying child maintenance simply because contact arrangements have broken down.
Child maintenance is a legal financial responsibility that remains separate from contact arrangements.
If Contact Has Been Denied
A parent may wish to:
- Attempt communication
- Use mediation where appropriate
- Seek family law advice
- Consider Family Court applications where necessary
However, maintenance obligations usually continue unless the assessment itself changes.
What Happens If Someone Loses Their Job?
Loss of employment can significantly affect financial circumstances.
Parents should notify CMS as soon as possible if employment ends.
Evidence May Include:
- Redundancy notices
- Dismissal letters
- Employer correspondence
- Universal Credit records
- Jobseeker evidence
Why Prompt Reporting Matters
Delays can sometimes result in:
- Incorrect calculations
- Arrears building up
- Disputes regarding liability
Always retain evidence and request confirmation that changes have been recorded.
What If Income Changes?
Changes in income can affect child maintenance calculations.
Examples include:
- Promotion
- Overtime
- Reduced hours
- Long-term sickness
- New employment
- Self-employment changes
- Retirement
What Should You Do?
Notify CMS where relevant.
Keep evidence such as:
- Payslips
- Payroll records
- Tax returns
- Pension records
- Employer letters
Paying Parent Protection
Many disputes arise where income information held by HMRC or CMS is out of date.
Parents should carefully review calculations and challenge inaccuracies promptly.
Can Grandparents Claim Child Maintenance?
Sometimes.
In certain circumstances, a grandparent or other family member may be considered a person with care of a child.
This generally depends on:
- Who the child normally lives with
- Day-to-day care arrangements
- Legal responsibility
Examples
A grandparent may be able to apply where:
- The child lives with them permanently.
- They are the primary day-to-day carer.
- They are responsible for the child's upbringing.
Individual circumstances vary and specialist advice may sometimes be appropriate.
What If Parents Live Abroad?
Child maintenance can still apply where parents live in different countries.
International child maintenance rules may apply.
Examples
Situations may include:
- One parent living outside the UK.
- A child living abroad.
- A parent working overseas.
Reciprocal Enforcement Arrangements
The UK has arrangements with many countries for the recognition and enforcement of child maintenance obligations.
Evidence May Be Required
Examples include:
- Residence information
- Employment details
- Financial records
- International address information
Can Child Maintenance Be Backdated?
In some circumstances, maintenance liability may be backdated in accordance with legislation and CMS rules.
The outcome will depend upon:
- Application dates
- Effective dates
- Case history
- Relevant regulations
Parents should carefully review any backdated calculations.
Can Arrears Be Challenged?
Yes.
If a parent believes arrears are incorrect, they may wish to:
- Request a full arrears breakdown
- Compare records
- Submit evidence
- Request Mandatory Reconsideration
- Appeal where appropriate
Evidence May Include
- Bank statements
- Direct Pay records
- Payroll records
- Shared care evidence
- CMS correspondence
What If CMS Has Ignored My Evidence?
This is one of the most common concerns raised by Paying Parents.
If you believe evidence has been overlooked:
Ask CMS:
What evidence was considered?
What evidence was rejected?
Why was it rejected?
Keep Copies
Retain copies of:
- Emails
- Letters
- Screenshots
- Evidence submissions
Escalate If Necessary
Options may include:
- Mandatory Reconsideration
- Tribunal appeal
- Complaint procedures
- Independent Case Examiner (ICE)
Can I Challenge A Child Maintenance Calculation?
Yes.
Parents may challenge decisions where they believe:
- Income figures are incorrect.
- Shared care arrangements are wrong.
- Relevant other children were not considered.
- Arrears are inaccurate.
- Evidence was overlooked.
Review and appeal rights may apply.
Do I Need To Keep Records?
Absolutely.
Good record keeping is one of the most important protections available.
Keep:
- Bank statements
- Payment confirmations
- CMS letters
- Shared care evidence
- Payslips
- Employment records
Many disputes are resolved through documentary evidence.
Advanced Claimant Protection
Parents should remember:
Child Maintenance Decisions Are Not Beyond Challenge
If a decision appears incorrect:
- Ask questions
- Request explanations
- Submit evidence
- Use review rights
- Use appeal rights where available
Evidence Matters
Strong evidence often provides the best protection against:
- Incorrect calculations
- False arrears
- Administrative errors
- Record inaccuracies
Fairness Matters
CMS should:
- Consider relevant evidence
- Explain decisions
- Maintain accurate records
- Act fairly and lawfully
Relevant Legislation
Key legislation includes:
- Child Support Act 1991
- Child Maintenance and Other Payments Act 2008
- Child Support Maintenance Calculation Regulations
- Human Rights Act 1998
- Data Protection Act 2018
- UK GDPR
These legal frameworks support fairness, accountability, transparency, and accurate decision-making.
Useful Government Resources
Child Maintenance Service
Open official / referenced resource ↗
Child Maintenance Calculator
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Mandatory Reconsiderations & Appeals
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Appeal A Child Maintenance Decision
Open official / referenced resource ↗
International Child Maintenance
Open official / referenced resource ↗
CMS Complaints Procedure
Open official / referenced resource ↗
Independent Case Examiner
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Information Commissioner's Office
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Key Message
Child maintenance cases often involve changing family circumstances, financial pressures, and complex rules. Understanding your rights, keeping accurate records, providing evidence, and challenging errors promptly can help protect both parents and children.
For Paying Parents especially, maintaining evidence of payments, income, shared care arrangements, and changes of circumstances can be vital in preventing disputed arrears and correcting inaccurate records. Child maintenance should be administered fairly, transparently, and based on reliable evidence, with appropriate safeguards available where concerns arise.
Right First Time UK
Fair Decisions. Public Money. Real Accountability.