Sir Keir Starmer has been urged by Labour MPs to stop accepting gifts.
The Prime Minister is facing a revolt from backbenchers over his refusal to stop taking items such as clothes and football tickets.
Several MPs have accused him of “hypocrisy” and “double standards”.
Senior figures are said to be “livid” by his decision to take so many gifts, with one MP warning it gives the impression “he’s more interested in himself” than the challenges facing the country.
The row intensified this week when Sir Keir was accused of breaching parliamentary rules by failing to declare that Lord Alli, a millionaire Labour donor, bought clothes for his wife.
The Prime Minister has since suggested he would continue to accept handouts from the media mogul, insisting “the important thing is that they’re declared in accordance with the rules”.
On Thursday, Baroness Harman, the former deputy Labour leader, said Sir Keir should stop trying to “justify” the gifts as it is “making things worse”.
Several Labour MPs have now urged him to refuse any further “freebies” and focus instead on helping the people he was elected to represent.
One backbencher on the Left of the party told The Telegraph: “He should stop taking freebies immediately.
“It gives the impression that he’s more interested in himself than he is about the difficult situation facing the poorest in our country who we are supposed to represent.
“I don’t know of anyone who thinks this is a good idea. Friends and colleagues are mortified.”
Another MP from Labour’s centrist wing lashed out at the Prime Minister’s decision to accept complimentary tickets to sporting and cultural events.
“He keeps saying he has to go in the posh seats to be protected, ultimately saving money for all of us,” the MP said.
“But we know that most of these freebies were when he was Leader of the Opposition, so is he saying he needed more protection then (when he was relatively unknown) than the Prime Minister who sat in the stands?”
They added: “Loads of us (senior Labour backbenchers) are livid. This is what hypocrisy looks like – and most of us have been fighting the ‘they’re all the same’ rhetoric for our whole careers, Keir’s double standards just prove it’s entirely accurate.”
Another Labour MP added their voice to calls for the Prime Minister to stop taking freebies, pointing out that ordinary people “don’t have any gifts adorned on them”.
“They pay their own way, and we should be as closely connected to our constituents as we possibly can,” they said.
They said that “all MPs really need to reflect” on whether they should take gifts, adding: “Whenever I hear these stories, I’m absolutely horrified, because I just think, where did the Labour Party come from?
“The party came from working people who just wanted a better lot in life, and that should be our sole focus, not what we can take from the system. It’s just, I think, completely lost its direction and purpose.
“And certainly I want nothing to do with that, but I don’t want my party to either, because I think we’ve got a value, a kind of a moral framework, a value base, which is rooted in our cause, and this sits outside of that framework.”
On Friday, Jess Phillips, the safeguarding minister, described the row over Lord Alli’s donations to Labour as an “annoying” distraction but insisted the Government would keep “cracking on” with the job at hand.
His donations have included tens of thousands of pounds worth towards clothing, accommodation and “multiple pairs” of spectacles for Sir Keir and £5,000 towards clothes and personal shopping for his wife, Lady Starmer.
