Overview. 1  This IRM provides definitions for terms and acronyms used in Revenue Financial Management (RFM). 2  The Office of Revenue Reporting, Revenue Financial Management (IFM), under the Chief Financial Officer (CFO), develops and maintains this IRM.
To calculate your TRS retirement benefits, use the following formula: 1  Multiply your years of service credit by 2.3 percent. 2  Determine the average of your five highest years of salary.*. 3  Multiply your average salary (from step 2) by the number from step  1.
Your basic annuity is computed based on your length of service and âhigh-3â average salary. To determine your length of service for computation, add all your periods of creditable service, then eliminate any fractional part of a month from the total. The age reduction applies to both the Civil Service Retirement System and the Federal Employees Retirement System components of your annuity, if you transferred to FERS and part of your annuity is computed under the CSRS provision.