Boris Johnson must be honest about the details of his luxurious free holidays as part of proposals for new Westminster standards to be revealed tomorrow.
Mr Johnson and other Ministers would have to disclose the value of free holidays – not just who provided it.
The call is expected to come in a report from the Commons’ standards committee setting out proposed changes to the MPs’ code of conduct.
Earlier this month, the Prime Minister was accused of using a loophole to avoid revealing the cost of a free stay at a Spanish villa by not declaring it in the MPs’ register of interests.
Mr Johnson and other Ministers would have to disclose the value of free holidays – not just who provided it
Instead, Mr Johnson declared the holiday at the villa, owned by the family of government colleague Lord (Zac) Goldsmith, in the Ministers’ register which did not require him to reveal the value.
But in reforms set to be unveiled tomorrow, the Commons’ standards is expected to suggest that Ministers should declare their outside interests in both registers in future.
A source said the committee could not demand that Ministers fall into line but was requesting that the two registers were ‘more aligned’ in future.
Mr Johnson declared that the villa outside Marbella, which reportedly costs up to £25,000 a week to rent, had been ‘provided free of charge by the Goldsmiths’.
Number 10 has already insisted that the MP had followed all transparency rules and that Commons’ standards commissioner Kathryn Stone agreed that his family holiday ‘does not require a separate Commons registration’.
Sources claim that the standards committee will offer options to create a new appeals process for MPs charged with breaking Commons Rules in the aftermath of an extraordinary row over the damning report, which found Owen Paterson, ex-Tory MP guilty of paid advocacy.
Allies of Paterson who quit the Commons this month in response to a Mr Johnson attempt to block the standards reports report said that he was denied an appeal.
Although sources from the standards committee denied this, they are expected to present options tomorrow for a new appeals system. It could involve Ms Stone as a lawyer or a group of senior MPs to be appointed later by the Speaker.
It would, according to some sources, also prohibit MPs working as consultants in parliamentary procedures.
Chris Bryant (Labour MP) was not available to comment on the release of the report.