In 2004-05 HM Revenue and Customs paid £15.8 billion of Tax Credits. The Department recalculates each award annually and has identified that for 2003-04 it overpaid some £2.2 billion to 1.9 million families. It believes that 2004-05 will see a similar level of overpayment. This is partly due to the nature of the scheme where awards are provisionally based on previous income whilst the final award is based on actual income. However the level of overpayment has been higher than was initial estimated and repayments have caused distress to some families. This report looks at measures being taken to reduce overpayments; claimant error and fraud; and the settlement with EDS over problems with the computer system. The Committee attaches great importance to this subject and wish to return to it in the future.