More than a third of staff at the Department for Work and Pensions (DWP) face losing their jobs over the next five years if the Tories are elected in May.
Government officials have drawn up plans to slash 30,000 jobs at the DWP, which deals with benefits and pensions.
Jobs have already been slashed since the coalition came in.
The DWP had 121,000 workers in 2010, including job centre staff. Now it’s down to 83,000.
Labour also plans to cut 20,000 DWP jobs if it is elected.
The announcement follows an attack on the workers’ PCS union.
Workers in Merseyside have already fought back over proposed job cuts. They struck last year at Garston DWP call centre.