You can go back to work after you retire and still receive PERF retirement benefits. You must have ended service for at least 30 days if you return to a TRF- or PERF-covered position. You also cannot have an agreement, written or oral, to come back to work after 30 days.
If you retired from another Indiana public pension fund (such as the 1977 Fund), you do not have a minimum period of separation before taking a PERF-covered position with the same employer if you are age 55 or older. If you are younger than 55, you must separate from service for 30 days before returning to work.