Former minister Steve Webb has said he repaid over £10,000 profits from selling his taxpayer-subsidised second home.
A Mirror probe revealed this week that more than 160 MPs have made a total of £42million selling properties the public helped pay for by picking up their mortgage interest bills until 2010.
And another 170 are sitting on potential profits of £100million.
Mr Webb, 53, a former Liberal Democrat MP and Pensions Minister, bought his flat near Westminster in 2008 for £280,000, claimed £1,158 a month in mortgage interest and then sold it in 2012 for £295,000.
He said: “I can confirm when I sold the property I sent a cheque to the Fees Office in respect of the profit I had made.”