Mark Simmonds, the Africa minister, said he would stand down from government immediately and would leave his Boston and Skegness seat at next year's general election.
He said that the rental allowance of £27,875 a year plus £2,500 for each of his three children would not be enough to maintain a family home in Westminster and that he would not be prepared to live outside central London.
Simmonds earns £89,435 a year as an MP and minister and employs his wife Lizbeth with up to £25,000 of public money.
His reasons for stepping down have been heavily criticised on Twitter and have exposed the differences in perception of many MPs – who believe that the expenses regime is penalising their ability to live normal family lives – and voters who still believe parliamentarians receive too much public money.
His resignation comes just days after Lady Warsi resigned from her Foreign Office post over the government's policy on the crisis in Gaza.
Simmonds said he was leaving primarily so he can spend time with his family because he cannot afford to house them in central London.So, on top of his annual family income of £114,835, Mr Simmons would like the public purse to provide him with a family home in Central London. Wouldn't we all ...?