Investment bank Goldman Sachs is expected to announce a bumper profits haul today amid signs that the sector's lucrative bonuses are back just a year after the banking crisis that almost caused financial meltdown.

Staff at the US giant, which employs 5,500 people in London, look set for a reported £14 billion pay and bonus pool this year when bosses unveil what is forecast to be a sharp rise in third quarter earnings.

Yesterday rival bank JP Morgan led the way with better-than-expected 3.6 billion US dollars (£2.3 billion) in net income for the three months to September, up from 527 million dollars (£330 million) a year earlier.

The healthy results come after an extended surge in stock markets around the world over recent months, boosting investment bank coffers.

London's FTSE 100 Index yesterday soared to a new 13-month high today thanks to more evidence of a global economic recovery, and New York's Dow Jones industrial average broke through the 10,000 points barrier for the first time in more than a year.

Analysts estimate the average London worker at Goldman Sachs will earn £467,000 in salary and bonuses - 13% higher than in 2007.

The potential payouts would come despite the Treasury announcing yesterday that the bank and a series of rivals with UK operations have agreed to back tougher international rules to curb pay and bonuses.

Officials said 11 banks including Bank of America and JP Morgan had signed up to the G20 recommendations drawn up last month. These include so-called clawback clauses and to spread out bonuses over three years or more.

The move follows a series of meetings held by City minister Lord Myners with international banks as part of efforts to prevent a return to the pre-crisis bonus culture.

Britain's five biggest banks signed up to the new G20 agreement last month, but there were concerns over support from international groups which have a presence in London.

The Treasury said eight banks - Bank of America Merrill Lynch, Citigroup, Credit Suisse, Goldman Sachs, JP Morgan, Morgan Stanley, Nomura and UBS - had confirmed their commitment to the Financial Services Authority's pay rules, which come into force on January 1, and their full support for the G20 agreement.

Germany's Deutsche Bank and French groups BNP Paribas and Societe Generale also said they would stick by the G20 reforms and would voluntarily comply with the FSA code, according to a statement today.

Lord Myners said: "I am pleased that the most significant banking institutions operating in the UK have moved quickly and are supporting our implementation of the agreement reached on bank remuneration at the G20, and this reinforces the standard we have set for other financial institutions and countries to follow."

Bank bonuses are determined at the end of the year based on annual performance, although the pay-out season is not until January.