Calculation of Retirement Allowance for a Member With Services in a College or Agency Also Provid

ing Social Security Coverage PURPOSE: This rule sets forth the procedures for qualification and benefits to those members as set forth in House Bill 34, 1957, and those who subsequently become members and also have Social Security coverage. (1) The monthly benefit for those applicants for retirement beginning January 1, 1976, who have taught in systems where full contributions are required and also where two-thirds (2/3) contributions are required shall be the sum obtained by applying the average monthly salary for the best three (3) years of teaching service while a member of the retirement system times the appropriate formula provided in section 169.070, RSMo, for each year or fraction of a year of service in a district where full contributions are required, and that obtained by applying the same final average salary times the same formula times two-thirds (2/3) for every year or fraction of a year in which the member contributed at two-thirds (2/3) the rate, provided a member with service in a system covered by Old Age Survivor’s Insurance (OASI) prior to July 1, 1961, made the retroactive payment in accordance with section 169.070.10, RSMo. This section of this rule applies only to the teacher system. AUTHORITY: section 169.020, RSMo Supp. 2025.* Original rule filed Dec. 19, 1975, effective Jan. 1, 1976. Amended: Filed Feb. 2, 2026, effective Aug. 30, 2026. *Original authority: 169.020, RSMo 1945, amended 1951, 1953, 1967, 1973, 1983, 1990, 1995, 1996, 1998, 2005, 2009, 2013, 2020.