Huge fines for banks, accountants and companies that help people evade tax will be announced in next month’s Budget following the scandal at HSBC’s Swiss division.

George Osborne, the Chancellor, will use his final major policy statement before the May election to ensure that organisations that enable people to evade tax face the same penalties as the individuals who benefit. He is expected to propose a new offence of “corporate failure” to prevent an “economic crime”.

In the Commons, Mr Osborne gave a strong hint that HSBC could face prosecution for its Swiss arm helping 1,100 wealthy British clients to evade taxes. Only one has been prosecuted.

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Under a deal reached with France by the previous Labour administration in 2010, Britain could use leaked HSBC data passed to the French government to prosecute individuals but not banks. The Government is now close to reaching agreement with France for the information to be used more widely so that action could be taken against HSBC.

The announcement came after HSBC revealed a 17 per cent fall in its pre-tax profits to £12.1bn in 2014 – and after the latest allegations centred on the company’s own chief executive, Stuart Gulliver. Mr Gulliver insisted he had always paid full UK tax on all his earnings, after reports that his bonuses were paid into a Swiss bank account through a Panamanian company, and said the arrangement was halted in 2009. But he admitted the allegations about the company’s Swiss arm had brought “shame and reputational damage” to the bank.

Mr Osborne was forced to make an unscheduled Commons statement about HSBC after Labour accused him of avoiding questions about the affair. But the Chancellor refused to disclose whether he had discussed the scandal with Lord Green, the former HSBC chairman, when he was appointed Trade Minister by the Government in 2011. He said that the proper procedures were followed.

Mr Osborne said: “Some very serious allegations have been made about HSBC Swiss and its role in knowingly advising people on tax evasion. Of course this is a matter that our criminal authorities, prosecuting authorities will want to look into.”

He went on: “We are currently in active discussion which I think will come to a fruitful end to get the French to allow us to pass some of this information to the Serious Fraud Office and other prosecuting authorities to address the concern… about the potential or alleged role of banks in this affair.”

Mr Osborne deflected an attack by Ed Balls, the shadow Chancellor, by arguing that the HSBC scandal came to light under the previous Labour government, in which Mr Balls served as a Treasury adviser and as a Cabinet minister.