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A growing number of parents are confronting severe financial distress due to significant errors made by the Child Maintenance Service (CMS). Reports indicate that miscalculations and improper deductions have resulted in parents losing thousands of pounds they do not owe, prompting urgent calls for reform in the system.
Disturbing Financial Blunders
John Hammond, a maths teacher from Peterborough, experienced a shocking revelation when he checked his banking app shortly after starting a new job. Instead of finding his salary, he discovered a staggering £20,000 had been wrongfully taken by the CMS. “I was so shocked that I couldn’t stop shaking,” he recounted, as colleagues noticed something was amiss. Notably, Hammond’s child support obligations had ceased over a decade ago, as his children are now 25 and 28 years old. Initially convinced it was a scam, he soon learned he was one of many victims facing similar predicaments.
More than 30 parents have shared their distressing experiences with BBC Your Voice, detailing issues ranging from erroneous child maintenance arrears claims to unwarranted deductions from their wages and bank accounts. These problems often stem from arrangements made years or even decades prior, raising serious questions about the CMS’s operational integrity.
CMS’s Role and Responsibilities
Established in 2012 to replace the Child Support Agency (CSA), the CMS aims to ensure that living costs for children are met when one parent is absent. It employs a formula to calculate payments and has the authority to deduct funds from wages, bank accounts, benefits, or pensions if parents fall behind. However, many parents have raised concerns about the enforcement methods employed by the CMS, leading to a report by the House of Lords, which highlighted instances of “inappropriate” deductions during compliance attempts.
While the Department for Work and Pensions (DWP), which oversees the CMS, acknowledges that enforcement actions are only taken when parents fail to pay, the agency has yet to address the unique challenges faced by individuals like Hammond.
Personal Stories of Struggle
Hammond’s ordeal began with a letter from the now-defunct CSA in September 2002, indicating he owed £947, which was not to be collected at his ex-wife’s request. Fast forward to 2019, when the CMS claimed his debt had ballooned to almost £19,000. After a protracted battle involving appeals and legal advice, a county judge ordered the CMS to return the full amount in December 2021, along with £8,000 in legal costs. Despite this victory, Hammond expressed that it felt more like survival than a triumph, as he was still out of pocket by over £6,000 due to legal fees.
Richard George, another victim, similarly felt the shock when £18,800 vanished from his bank account. The 63-year-old fintech entrepreneur believed he had resolved his previous child maintenance issues after an appeal tribunal dismissed a £16,000 debt. Yet, in late 2019, the CMS unexpectedly deducted the funds. A mix-up resulted in CMS correspondence being misdirected for years, despite George’s attempts to correct his address. By the time the CMS acknowledged its errors in 2023, George had already endured significant emotional and financial turmoil.
Calls for Reform
The House of Lords report entitled “Reforming the Child Maintenance Service” has brought light to numerous concerns regarding the CMS, particularly the outdated calculation formula that has been in place for over two decades. Critics argue that this formula does not reflect the dynamics of contemporary family structures and is neither fair nor transparent.

In 2025, approximately 800,000 arrangements were managed by the CMS, serving around 720,000 paying parents. The DWP claims that their assessment accuracy is nearly 100%, yet parents contest the enforcement actions taken against them before disputes are resolved. A staggering quarter of CMS decisions were overturned last year alone, raising serious questions about the reliability of the service.
Abigail Wood, chief executive of the charity Gingerbread, has been vocal in her support for reform, asserting that the CMS is failing both parents and children. She urges the DWP to accelerate changes to create a fairer system. Michelle Counley from the National Association for Child Support Action advocates for a collaborative approach that could prevent disputes from escalating to the enforcement stage.
Why it Matters
The distressing stories of Hammond, George, and other parents reveal systemic flaws within the CMS that not only cause financial strain but also deeply affect the lives and well-being of those involved. As calls for reform grow louder, the government must act decisively to address these issues, ensuring that parents can fulfil their responsibilities without facing undue hardship. A reliable and fair child maintenance system is crucial for supporting families and safeguarding children’s futures, making it imperative that these errors are rectified swiftly and efficiently.