“Mr Wilshire, the MP for Spelthorne in Surrey, made the announcement after spending hours attempting to defend his allowance claims to the Tory leadership.
He said that the investigation into his controversial arrangements would cause “great distress” to his family and friends.
“These allegations also run the risk of harming my local party and our national party’s chances of winning at the next general election,” he said.
The Daily Telegraph disclosed Mr Wilshire had paid £105,500 from his office and staffing allowances to Moorlands Research Services, a company owned by him and his girlfriend.
Parliamentary rules dictate that MPs must not enter financial arrangements that “may give rise to an accusation” that they or someone close to them profited from public funds. More