When parents separate, or when they were never in a relationship, child maintenance becomes an essential part of meeting a child’s everyday living costs. In the UK, this responsibility is often managed through the Child Maintenance Service, a government-run system designed to ensure that both parents contribute financially to their child’s upbringing.
Recently, the Child Maintenance Service (CMS) has come under parliamentary scrutiny after concerns were raised about delays and service standards, particularly around its hotline and complaint handling. The Department for Work and Pensions (DWP) has now issued a formal response, outlining current challenges and how the system operates. This update is important for parents who rely on CMS for support or who are experiencing delays in resolving their cases.
What Child Maintenance Means for Parents
Child maintenance refers to regular financial payments made by one parent to the other, usually the parent who has day-to-day care of the child. These payments help cover basic living costs such as food, clothing, housing, and education. Child maintenance typically applies to children under the age of 16, or up to 20 years old if they remain in approved education or training.
Under UK law, both parents are responsible for supporting their children financially, even if one parent has limited or no contact with the child. The CMS plays a key role in calculating payments, collecting money where required, and handling disputes between parents.
Scale of the Child Maintenance Service in the UK
The reach of the Child Maintenance Service (CMS) is significant, with hundreds of thousands of families relying on it each year. According to figures shared by the CMS for 2024, the system supports a large number of children across the country.
The reported figures include:
| CMS Activity (2024) | Number |
|---|---|
| Paying parents with active CMS arrangements | 678,000 |
| Children covered by CMS cases | Approximately 1,025,000 |
Many paying parents have more than one CMS arrangement, particularly where they have children with different partners. These numbers highlight how central the service is to family finances and why delays or communication problems can have a serious impact on households.
Concerns Raised in Parliament About CMS Performance
Concerns about the effectiveness of the CMS, especially its hotline and complaint handling process, were formally raised in Parliament by Justin Madders, Labour MP for Ellesmere Port and Bromborough. He questioned the DWP on how well the CMS responds to complaints from members of the public and from MPs acting on behalf of their constituents.
The focus of the concern was whether families and MPs are able to get timely responses when issues arise, particularly in complex or long-running cases. Many parents depend on quick resolutions to ensure regular child maintenance payments continue without disruption.
DWP Response on CMS Delays and Complaints
In response to the parliamentary question, Andrew Western, Parliamentary Under-Secretary of State at the DWP, acknowledged that there are delays in handling complaints and enquiries. He explained that the official complaints service standard is to contact customers within 15 working days after a complaint is made.
This standard applies both when a parent contacts the CMS directly and when an MP contacts the DWP on a constituent’s behalf. If a case is complex, the service is expected to provide an expected timeline rather than a full response within that period.
However, the DWP admitted that this target is not always met. According to the response, the department is dealing with an increase in both the number and complexity of CMS cases. This rise has contributed to delays, particularly for enquiries submitted by MPs and their caseworkers.
How the DWP Is Monitoring CMS Issues
The DWP stated that it actively monitors complaints and service performance within the CMS. This includes reviewing patterns and trends to understand where problems are occurring and how processes can be improved.
The department is looking at:
- Which benefit or service areas generate the highest number of complaints
- The main reasons behind delays in responses
- Ways to improve response times and service quality
This monitoring is intended to help the CMS adjust its processes and better meet demand, especially during periods of high workload.
CMS MP Hotline and How It Works
To support MPs and their staff, the CMS operates a dedicated MP Hotline. This service is designed to provide quicker access for elected representatives who are raising cases on behalf of their constituents.
The MP Hotline operates:
- Monday to Friday
- From 9:00 am to 4:00 pm
- Staffed by Complaint Resolution Managers
The aim of the hotline is to resolve straightforward enquiries immediately where possible. For more complex cases, follow-up contact is arranged to ensure a detailed response is provided. The DWP has said this system is intended to support efficient communication between CMS and MPs.
Official Statement on CMS Service Commitment
The DWP has reiterated its commitment to improving service delivery through the CMS. In its statement, the department said the CMS is focused on delivering a modern and efficient service that meets the needs of all customers.
This includes continuing to review complaint handling processes and improving how enquiries are managed, especially where delays have caused frustration for parents and representatives.
How Parents Can Contact the Child Maintenance Service
Parents who need to contact the CMS have several options available. The service provides dedicated phone lines and postal addresses to handle enquiries, complaints, and case updates.
CMS Contact Numbers
| Service | Contact Details |
|---|---|
| General enquiries | 0800 171 2345 |
| Welsh language service | 0800 232 1979 |
| Relay UK | Dial 18001, then 0800 171 2345 |
| BSL Video Relay Service | Available via official website |
| Operating hours | Monday to Friday, 8am to 6pm |
There is a separate contact number for residents of Northern Ireland, which parents should use if applicable.
Postal Addresses for CMS
For England, Scotland, and Wales, written correspondence should be sent to:
Child Maintenance Service 21
Mail Handling Site A
Wolverhampton
WV98 2BU
For Northern Ireland, the address is:
Child Maintenance Service 24
Mail Handling Site A
Wolverhampton
WV98 2BU
Parents are advised to include their case reference number and any relevant documents when writing to the CMS.
Importance of Keeping Records When Dealing With CMS
Parents who have submitted a complaint or are waiting for a response are encouraged to keep detailed records of all communication with the CMS. This can be helpful if follow-up is needed or if there is a disagreement about what has been discussed.
Useful records include:
- Dates and times of phone calls or letters
- Names of CMS representatives spoken to
- Copies of letters, emails, or forms sent or received
Keeping clear records can help resolve issues more quickly if delays occur.
Conclusion: What Parents Should Understand Going Forward
The recent parliamentary questions and the DWP’s response highlight ongoing challenges within the Child Maintenance Service (CMS), particularly around complaint handling and response times. While service standards exist, rising demand and increasingly complex cases have led to delays that affect both parents and MPs seeking help on their behalf.
At the same time, the CMS remains a critical system supporting over a million children across the UK. The DWP says it is actively reviewing performance data and complaint trends to improve service delivery. Parents who rely on child maintenance should be aware of official contact routes, keep detailed records, and understand that while delays can occur, the CMS is still responsible for ensuring financial support is delivered in line with the law.