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In a disconcerting revelation, numerous parents across the UK are grappling with significant financial distress due to severe miscalculations and enforcement errors by the Child Maintenance Service (CMS). John Hammond, a maths teacher from Peterborough, is among those affected, having lost nearly £20,000 that he did not owe. These alarming instances highlight systemic flaws within the CMS, prompting urgent calls for reform.
A Shocking Discovery
While settling into his new teaching role, John Hammond decided to check his banking app, only to be met with the shocking sight of £20,000 withdrawn by the CMS. “I was so shocked that I couldn’t stop shaking,” recalled the 56-year-old, whose child support obligations had ended over a decade ago. He initially suspected a scam when he learned about the deductions, given that his children are now 25 and 28.
Hammond is not alone; over 30 parents have reported similar experiences to the BBC, detailing issues such as erroneous deductions from wages and bank accounts, along with protracted disputes with the CMS. These problems often stem from outdated support arrangements that were finalised years or even decades ago.
A Flawed System
Established in 2012 to replace the Child Support Agency (CSA), the CMS is tasked with ensuring that non-residential parents contribute to their children’s living expenses. It employs a formula to determine payment amounts, but when parents are unable to arrange payments privately, the CMS can forcibly deduct funds from various sources, including wages and benefits.
The Department for Work and Pensions (DWP), which oversees the CMS, has faced increasing scrutiny. A recent House of Lords report raised concerns about the service, highlighting that parents reported being penalised for alleged non-compliance while they were actively trying to resolve issues. The DWP did not directly address individual cases like Hammond’s but stated that enforcement measures are only implemented after continued non-payment.
Long and Winding Battles
John Hammond’s troubles began in September 2002 when he received a letter from the CSA stating he owed £947, which was later suspended at his ex-wife’s request. Fast forward to 2019, when the CMS unexpectedly demanded nearly £19,000. “I was in complete shock,” he stated, recalling the frustration of trying to rectify the situation with the CMS, only to be met with contradictory information.
Despite mounting evidence and appeals, Hammond’s case culminated in the CMS seizing £19,269 from his bank account in late 2020. After a lengthy legal battle, a county court judge ruled in favour of Hammond, ordering the return of the full amount along with £8,000 in legal fees. However, he remains more than £6,000 out of pocket, feeling that despite winning, true justice eluded him.
Richard George, another victim of CMS errors, experienced a similarly harrowing ordeal when £18,800 was withdrawn from his account. The fintech director from Devon believed he had settled his child maintenance obligations back in 2016, only to face unexpected deductions in 2019 due to misdirected correspondence. “It felt like everything I had left was taken by a scammer,” he recalled. Although he ultimately received his money back in 2023, the emotional and financial toll was significant.
Urgent Calls for Reform
The House of Lords report, published in October 2025, emphasised the need for a comprehensive overhaul of the CMS, labelling its enforcement practices as “random, abusive, and unregulated.” It highlighted that the formula used to calculate payments has not evolved in over two decades and does not adequately reflect the realities of modern family structures.
The DWP announced plans to review the CMS’s calculation model, acknowledging the concerns raised. Currently, the CMS manages approximately 800,000 arrangements for 720,000 paying parents. However, nearly a quarter of decisions made by the CMS were found to be incorrect last year, according to BBC findings.
Abigail Wood, chief executive of the charity Gingerbread, stressed that the CMS is failing both parents and children, emphasising the need for reform to create a fairer system. Similarly, Michelle Counley from the National Association for Child Support Action urged for a collaborative approach that could prevent disputes from escalating to enforcement actions.
Why it Matters
The ongoing issues surrounding the CMS create significant emotional and financial strain for families, highlighting the urgent need for reform in a system that should prioritise the welfare of children. As parents like Hammond and George continue their battles against bureaucratic errors, the call for a transparent, fair, and functional child maintenance system becomes increasingly critical. The implications of these failures extend beyond individual families, affecting broader societal trust in government systems designed to support the most vulnerable.