Impact of part-time employment on CSRS annuity


Q. I researched online, and I think if I go part time for my final year or two of employment, it could affect my high-3 salary calculation (due to final low-salary years not being the ones used to calculate the high-3) but it would NOT affect my total years of service (i.e., I’d get credit for a full year of employment even if that year was part-time work). Is that right?

A. You’d get full credit in determining your total years of service; however, your annuity would be reduced to account for that portion which was part-time. To learn how that’s done, go to and scroll to Part 55B2.1-1.


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Reg Jones was head of retirement and insurance policy at the Office of Personnel Management. Email your retirement-related questions to

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