The head of HM Revenue & Customs (HMRC) has admitted that the department needs to improve its customer service but said it was unlikely to be in a "good place" before 2013.
Mike Clasper, chairman of HMRC, said the two main areas that needed improving were customer service and staff engagement.
Appearing before the Treasury Sub-Committee, he was challenged by MPs who said they had received letters from constituents complaining that they had tried to contact HMRC on several occasions, and been on hold for more than two hours, but had still not had their calls answered.