Sir Lindsay Hoyle demanded Rishi Sunak resign after a series of Budget leaks
Furious at the Government for leaking finance policies to the press before formally announcing them in Parliament, he accused ministers of trying to "run roughshod over this House".
He granted backbench MPs a series of urgent questions in the Commons to punish the Government for its actions.
In a statement to MPs, Sir Lindsay said: "At one time ministers did the right thing if they briefed before a Budget - they walked."
Some MPs shouted "resign" as the visibly irritated Speaker reprimanded the Treasury.
In response to the heckles, he added: "Yes absolutely, resign.
"It seems to me we've got ourselves in a position that if you've not got it out five days before it's not worth putting out.
"I've got to say, members are elected to this House to represent their constituents, those constituents quite rightly expect the MP to hear it first in order to be able to listen to what the Budget is about, but also for the days following that to be able to hold them to account.
"It's not acceptable and the Government shouldn't try to run roughshod over this House, it will not happen."
More to follow...