Boris Johnson has admitted he received a freebie Spanish holiday last month from the family of Tory peer Zac Goldsmith.
The Prime Minister submitted a formal declaration stating that his sunshine getaway was "provided free of charge by the Goldsmiths" in an update to the register of minister's interests.
It does not give an estimate on how much the holiday might have cost - but this information could be provided in the separate register of MPs' interests.
The Mirror previously revealed that the PM had jetted off for a holiday in Lord Goldsmith's luxury hideaway outside Marbella after the Conservative Party conference last month.
Mr Johnson was pictured painting at an easel in the sunshine as Brits faced in a cost of living crisis with food and labour shortages, and rising prices.
The luxury estate, which is set in over 600 acres of woodland, boasts a heli-pad and two swimming pools, and reportedly costs up to £25,000 a week to rent.
Mr Johnson's entry in the register states: "The Prime Minister has a longstanding personal friendship with the Goldsmith family and, in that capacity, in October 2021, stayed in a holiday home in southern Spain which was provided free of charge by the Goldsmiths.
"Given Lord Goldsmith is a Minister of the Crown, the arrangement has accordingly been declared."
Lord Goldsmith, a friend of Mr Johnson's wife Carrie, was handed a peerage and a ministerial role after losing his seat at the 2019 election.
Asked if the PM should be allowed to accept a free holiday under the rules, the PM's official spokesman said: "It’s not up to me certainly to comment on the rules.
"There are clear rules that enable for transparency and accountability for members and the Prime Minister has abided by them.
"He’s followed the process outlined in the Ministerial Code and declared that to the independent advisor on ministerial interests."
Mr Johnson previously found himself in hot water over a 2019 holiday to Mustique with his then-fiancee Carrie.
The MPs' Register of Interests stated the accommodation had a "value" of £15,000 and funded by Carphone Warehouse co-founder David Ross.
Mr Ross initially said he had not paid for the holiday but later clarified that he had "facilitated" the accommodation.
In July, the Commons Standards Commissioner said Mr Johnson had breached the MPs’ Code of Conduct as he did not "make sufficient inquiries to establish the full facts about the funding arrangements for his free accommodation, either before his holiday, as he should have done, or in 2020."
The PM did not pay any accommodation costs for his stay, although he met all other costs, the report found.
However the Standards Committee of MPs and lay members overruled the commissioner and found Mr Johnson had not breached the code after all.
