The Importance of Knowing Your Sick Leave Balance Before Retirement Federal employees under FERS accumulate sick leave throughout their careers, but many do not realize its full value until retirement. The sick leave conversion chart FERS converts unused sick leave into extra pensionable service time, increasing retirement benefits. Employees nearing retirement should check their si... https://www.federalpensionadvisors.com/post/fers-sick-leave-conversion-chart