The merger of the Inland Revenue and HM Customs & Excise was announced by then Chancellor of the Exchequer Gordon Brown in the Budget on 17 March 2004. The name for the new department and its first executive chairman, David Varney, were announced on 9 May 2004. Varney joined the nascent department in September 2004, and staff started moving from Somerset House and New Kings Beam House into HMRC's new headquarters building at 100 Parliament Street in Whitehall on 21 November 2004.