April 17, 2018 20:07 Updated Follow If we receive your benefit application with annuitization decision within six months of your effective retirement date, you'll get the annuitization rate in effect as of that date. Related articles If I annuitize my Defined Contribution (DC) account, how does INPRS calculate my monthly benefit? What are my retirement account investment options? How can I estimate a monthly annuity benefit? I'm the spouse of a PERF member who has died. How do I get a survivor benefit? I'm a non-vested TRF member. How can I receive an online retirement benefit estimate?