Question to the HM Treasury:
To ask the Chancellor of the Exchequer, what estimate he has made for the average waiting time on HM Revenue and Custom's phone lines for individuals seeking support with tax credits; and if he will make an assessment of the adequacy of that call waiting time.
HMRC publishes performance data monthly and quarterly at: https://www.gov.uk/government/collections/hmrc-monthly-performance-reports and https://www.gov.uk/government/collections/hmrc-quarterly-performance-updates.