How do CSRS benefits increase after retirement?
CSRS (including CSRS Offset) cost of living adjustments are determined by the average Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) for the third quarter of each year over the third-quarter average CPI-W index of the previous year. COLAs are paid to all CSRS retirees, regardless of the age at which they retire, and to their survivors.

The initial cost-of-living adjustment for newly retired CSRS employees is prorated depending on the month in which their retirement begins. A CSRS employee who retires within the first three days of a given month will be on the annuity roll for that month; otherwise, the employee would be on the roll for the following month. For example, a CSRS employee whose retirement date was June 1, 2, or 3 would be on the annuity roll in June; but if the retirement date was June 4 through 30, the employee would be on the annuity roll in July.

2021 Digital Almanac

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