§ Mr. Willetts
To ask the Chancellor of the Exchequer on how many occasions since January 2003 the tax credits computer system has stopped working. 
§ Dawn Primarolo
IT system supporting the new tax credits did not work initially as well as we expected and there was unscheduled down time as a result. The Inland Revenue worked urgently with their IT partners to improve the system's availability, speed and stability, and it has been performing much better for a number of months.