Part-time work and years of service


Q. I have 37½ years of continuous CSRS-covered federal employment.

Early in my career, I worked for three or four years under a position that was, as I recall, 35 hours/week.

Will I get full credit for all years worked, or will this part-time position affect my CSRS retirement annuity?

A. That part-time service will be treated as full-time when determining your years of service; however, your annuity will be prorated to account for it. To see how that’s done, go to and scroll to Part 55B.

Although this is the FERS section of the chapter, through a change in law it now applies equally to CSRS.


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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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