Estimates for the level of error and fraud in 2003-04 are available in the publication ‘Child and Working Tax Credits. Error and fraud statistics 2003-04’. This is available on the HMRC website at:
http://customs.hmrc.gov.uk/channelsPortalWebApp/channelsPortal
WebApp.portal?_nfpb=true&_pageLabel=paqeVAT_ShowContent&propertvType=document&columns=1&id=HMCE_PROD1_025711
Estimates of the amount of entitlement for claimants in 2003-04 are available in the publication ‘Child and Working Tax Credits Statistics. Finalised awards 2003-04. Supplement on payments in 2003-04.’ This publication is available on the HMRC website at:
http://www.hmrc.gov.uk/stats/personal-tax-credits/cwtc-pavments-0304.pdf
Estimates for the value of overpayments in 2003-04 are available in the publication ‘Child and Working Tax Credit Statistics. Finalised annual awards 2005-06. Supplement on payments in 2005-06’. This is available on the HMRC website at:
http://www.hmrc.gov.uk/stats/personal-tax-credits/cwtc-pavments-0506.pdf