A Daily Mail investigation has revealed that the UK's Child Maintenance Service (CMS) has overcharged more than 24,000 parents, resulting in approximately £4.3 million being unfairly collected. These inflated charges have reportedly led to parents losing homes, experiencing severe financial distress, and, in at least two cases, taking their own lives.
Relatives of some affected fathers have stated that their loved ones were driven to suicide or breakdown due to the overwhelming and inaccurate financial demands from the CMS. One mother described the situation as the government "stealing" from her and exerting "coercive control of my finances."
Internal documents suggest that computer glitches may be a contributing factor to the widespread overcharging. Directors of the agency have privately acknowledged that its online portal has a reputation for "not working." This dysfunction has led to parents being issued with vastly different and often impossibly high maintenance charges, sometimes multiple times within the same week or day.
Comparisons have been drawn to the Post Office Horizon IT scandal, where a flawed IT system led to the wrongful prosecution of hundreds of sub-postmasters. The CMS, a branch of the Department for Work and Pensions (DWP), was established in 2012 to replace the problematic Child Support Agency (CSA).
Approximately 800,000 parents currently have their child maintenance payments managed by the CMS. The agency is designed to ensure children are financially supported when parents separate and the child spends more than half the time with one parent. Typically, paying parents are assessed to pay between 12 and 19 percent of their income.
However, the investigation found at least 24,400 cases of overcharging, with the actual number potentially being much higher. Many parents who attempted to rectify mistakes found their appeals were rejected or ignored, leaving them financially and emotionally crippled. The CMS has the authority to automatically seize funds from bank accounts or directly from paychecks, leading some parents to hand over more than half their monthly income.
Internal audits have contradicted the CMS's public claims of a 99 percent accuracy rate. An internal audit in 2023/24 found that a quarter of randomly selected cases contained at least one error, a figure that rose to a third in 2024/25. Furthermore, the agency experiences significant staff turnover, with 500 out of 4,200 employees quitting between January 2025 and March 2026 alone.
Lib Dem leader Sir Ed Davey has criticized the CMS for "failing families on all sides" and urged the government to implement promised reforms. Campaign groups, such as STOPSuicideUK, have highlighted the severe distress and anxiety experienced by parents, questioning the effectiveness of existing protections for vulnerable individuals.
The DWP has stated that the CMS has undergone modernization since 2018 and is performing more effectively, securing a large number of maintenance arrangements. They maintain that payment assessments are fair and based on the paying parent's income, with avenues for appeal through independent tribunals.
Despite these assurances, numerous accounts detail prolonged struggles. One father, Jonathan O'Neill, reportedly died by suicide after receiving a letter stating he owed £4,200 in arrears, despite providing evidence that his earnings had been overestimated. Another veteran, Simon Ward, faced significant financial hardship and relied on food banks after the CMS continued to calculate his maintenance based on a previous higher salary even after he was medically discharged on a lower pension.
Belzuan Zeka, a business owner, has been battling the CMS since 2018 after his income was overestimated. He received conflicting payment demands, one as high as £3,500 per month, despite an independent review confirming an overestimation of £35,000 over three years. Carl Leverett, an IT consultant, faced years of overpayments and subsequent demands for large sums after a judge ruled the agency had overcalculated his salary by £25,000.
Parents who have had their cases reviewed by the Independent Case Examiner (ICE) found that two-thirds of formal investigations resulted in upheld or partially upheld complaints. Similarly, the Social Security and Child Support Tribunal processes a significant number of appeals, with 41 percent of cases in 2025 resulting in judges ordering the CMS to overturn its decisions. However, some parents report that the CMS fails to implement these rulings promptly.
When overpayments are identified, the CMS often advises the affected parent to reclaim the money directly from their former partner, a process described by one senior manager as "coercive control of my finances."
John Hammond, a teacher, was left suicidal and living in poverty after being inexplicably charged £19,000 by the CMS for older children who were no longer dependents. Despite winning court cases, he continued to receive new demands, and the agency seized the funds from his bank account, leaving his family without essential utilities for 18 months. The case was eventually closed with him owing nothing, but without an admission of error from the CMS.