Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what assessment her Department has made of the effectiveness of the Child Maintenance Service's collect and pay system.

When measuring the effectiveness of collect and pay cases we collect data on rate of compliance. These figures are published quarterly in table 6 of the Child Maintenance Service experimental statistics data tables, which can be found here:

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/684262/tables-child-maintenance-service-august-2013-to-december-2017.ods