Up to 2,500 Lancashire County Council workers are being encouraged to leave their jobs as it looks to make £300m in savings by April 2016.
Councillors are due to meet on January 24 to agree how to make significant reductions to the council’s workforce in response to more government funding cuts.
The council said it was striving to avoid making compulsory redundancies, but would encourage workers to apply for voluntary redundancy.
Lancashire County Council employs 34,500 people but, with the majority of those jobs funded through the ring-fenced schools budget, the cuts affect its non-schools workforce of around 13,000.
Jennifer Mein, leader of the council, said: “This is the harsh reality of the cuts being imposed by government, as we seek to find £300m savings on top of the £220m the council has saved over the last three years.
“The council simply cannot make these savings without significant reductions both in the services it provides to local communities and in the number of people it employs to deliver those services.
“These are decisions we would rather not have to make, but I am determined to lead the council through this period in a way that makes the changes as fair as possible to the public and employees alike.
“That includes giving the people who work here a clear understanding of where we’re going and doing everything we can to avoid compulsory redundancies. My hope is that enough people will choose to go on a voluntary basis and our proposed approach has that outcome in mind.”