The Child Maintenance Service has overcharged dozens of parents, with some forced to pay thousands of pounds in arrears they never actually owed. John Hammond and 29 others reported billing errors to BBC Your Voice, revealing systemic calculation failures within the government agency responsible for collecting and distributing child support payments across the UK.
Parents describe receiving demands for back payments based on faulty assessments of income and employment status. One case involved a £20,000 claim for arrears that the parent successfully challenged as incorrect. The errors stem from the CMS's struggle to accurately process income data, particularly when parents' financial circumstances change or when self-employment income is involved.
The CMS has faced recurring operational problems since its 2012 overhaul. Payment processing delays, miscalculated assessments, and failures to update records have plagued the system for years. Parents report spending months fighting incorrect bills, often without clear explanation from the agency about how charges were calculated.
Recovery proves difficult even after errors are identified. The CMS lacks transparent appeal mechanisms, forcing parents to pursue complaints through multiple channels or seek legal assistance to overturn erroneous demands. Some report being sent to debt collection agencies while disputes remain unresolved.
A CMS spokesperson acknowledged the complaints and stated the agency investigates individual cases, but provided no figures on systemic error rates or timelines for resolution. The revelations add to growing pressure on the CMS following repeated criticisms from MPs and child support advocacy groups about service quality and operational failures.
The errors directly impact families relying on maintenance payments, as disputes with the CMS delay legitimate support reaching custodial parents. The agency's inability to accurately manage routine billing calculations undermines its core function and erodes public confidence in government administration of family support systems.