August 21, 2018 18:10 Updated Follow You must have at least 10 years of creditable service. Related articles When can I retire from PERF or TRF? What is the State Employees' Death Benefit Fund? At what age should I retire? When will I be vested in PERF? I am retired and left my INPRS account with the Indiana Public Retirement System at the time I retired. Do I have to take a distribution of my account once I reach age 70 ½?