Labour MP George Mudie is standing down from the Treasury select committee after 13 years.
Mudie, who is standing down as an MP next May after 23 years, has interrogated bankers, politicians and quangos across three parliaments.
Last year he chaired a sub-committee investigation into the Money Advice Service. It published a scathing report into the body which sparked an independent review into the organization commissioned by the Treasury.
The move will spark a vote for Labour replacement among the parliamentary party from candidates who want to join the committee.
Speaking to Money Marketing, Mudie said: “I have decided I’ve had enough and we are looking for a replacement.
“I am leaving parliament at the next election and I thought it would be a good time to leave the committee and let someone else get their feet under the table.”