Politicians and union leaders have demanded answers amid fears Their calls follow reports that the state-owned bank wants to shed up to 30,000 posts over the new few years.
The Unite union said it planned to meet
Scottish Labour's finance spokesman
Since then the banking giant, still more than 80% owned by the taxpayer, has got rid of around 40,000 of its staff.
It has also undertaken a massive restructuring pro-gramme after the Chancellor
Last month, it admitted it expects to announce pre-tax losses of between pound(s)7bn-pound(s)8bn for 2013. It surprised the City after it revealed a string of scandal-related financial charges had cost the bank more than pound(s)3bn.
They include an agreement in December to pay US regulators
Other recent problems include an IT failure that left customers unable to use debit or credit cards.
Alongside confirmation of the losses, an announcement on some of the bank's riskier activities is expected when it posts its end-of- year results next week.
It is not thought specific job cuts will be set out at that stage.
RBS is understood to employ around 120,000 staff, meaning a loss of 30,000 jobs would cut its headcount by around one-quarter.
Heavy job cuts are expected in RBS's investment bank business, which it is thought will pull out of its US and Asian markets businesses. It is expected about 18,000 jobs will be lost with the sale of the company's US retail bank Citizens.
Further reductions will also come from its Williams & Glyn's businesses, which employ about 4500 staff.
In a video posted on the company's website, the chief executive of RBS,
"A lot of our costs are old costs related to a big global group that we are not any more."
Unite said it planned to meet RBS bosses next week to demand clarity over
A spokesman for RBS last night said the bank would not comment on speculation.
Personal and business customers of RBS as well as its sister banks
Politicians and union leaders have demanded answers amid fears
Their calls follow reports that the state-owned bank wants to shed up to 30,000 posts over the new few years.