In September 2013 Alexander was appointed chair of the House of Representatives Standing Committee on Tax & Revenue, a role in which he worked on improving access to 'light touch' tax returns for individuals with simple tax affairs. Following this he was appointed chair of the House Standing Committee on Economics, where he instigated an inquiry into home ownership and opportunities for tax reform. Following Malcolm Turnbull's ascension to Prime Minister John Alexander was appointed chair of the newly formed House Standing Committee on Infrastructure, Transport & Cities, where he commenced an inquiry into transport connectivity, regional development, high speed rail and the use of value capture as an innovative funding mechanism.