Phased retirement and annuity computation 0 By Reg Jones on August 20, 2013 CSRS annuity computation, FERS annuity computation, RETIREMENT Q. If I enter into the phased retirement at 60 and retire at 62, will my pension multiplier be 1.0 or 1.1? A. 1.0. Share. Twitter Facebook Google+ Pinterest LinkedIn Tumblr Email