Sleaford and North Hykeham MP Stephen Phillips has been elected to a vacant post on the Public Accounts Committee.
The select committee is responsible for overseeing government expenditure and ensuring transparency and accountability of government financial operations.
Stephen said: “I am delighted to have been elected to serve on the Public Accounts Committee.
“It performs a vital function in holding the government to account for its expenditure, a role that has become ever more important given the increasing focus on value and effectiveness when spending taxpayers’ money.
“I look forward to getting stuck in and adding my voice to that of the current distinguished members.”
First formed in 1861, the Committee of Public Accounts is appointed by the House of Commons.
It is customary for the committee to be chaired by a member of the opposition party - the current chairman is Labour MP Margaret Hodge.
The present committee of 14 MPs comprises eight Conservatives, five Labour members and one Liberal Democrat.