Council leader Sir Albert Bore says workforce has dropped from 21,000 to 14,000 in three years.
Birmingham City Council leader Sir Albert Bore has confirmed that the authority will shed a further 1,000 jobs by 2015 under budget proposals.
The redundancies were confirmed as the city council announced where £85m cuts to its budget would fall - including cuts to adult social care services, efficiency savings on major contracts and the closures of four community libraries.
Sir Albert said that austerity budget measures began in 2010, when the workforce stood at 21,000 full time equivalent posts and by this time next year the figure would be nearer 14,000 - including the 1,000 going this year.
Council Labour leader Sir Albert Bore said the situation is likely to worsen with cuts set to continue until 2018 - meaning more difficult choices ahead.
He said: “We have reduced our staff by 33 per cent since 2010 and a further 1,000 jobs will go in the year ahead.
"However all of this becomes harder each year and in the budget set out in this document we have found it extremely difficult to maintain the full range of services we provide.”
He said that under his 'jaws of doom' analysis the council funding will have reduced by £822 million between 2010 and 2018 - more than half of its controllable budget.
He added that Birmingham, which is heavily reliant on Government funding due to its high levels of deprivation, has received a greater proportion of cuts that better off areas in the south of England.
Last month a cross-party delegation of leading Birmingham councillors and MPs met with Government ministers to push the case for a 'fairer' funding settlement.
Gillian Whittaker of the GMB union criticised the job cuts.
She said: "This is a further blow to Birmingham City Council workers. The services across Birmingham are already stretched and our members are already over-worked.
"To find more cuts across Birmingham and local services is very upsetting as our members are already uncertain about their jobs.
"We will expect a Labour council to look at alternatives and to mitigate the worst aspects of these cuts."