Withdrawal Probability Service Table Calculator
Calculate the probability an active member is still in service after the given years, and the cumulative chance they have withdrawn.
Description
Calculate the probability an active member is still in service after the given years, and the cumulative chance they have withdrawn.
Withdrawal Probability Service Table Calculator provides a focused, reproducible calculation with explicit inputs and a deterministic result. Calculate the probability an active member is still in service after the given years, and the cumulative chance they have withdrawn.
Use to project active-service retention under a constant annual withdrawal probability.
When to use Withdrawal Probability Service Table Calculator
Use to project active-service retention under a constant annual withdrawal probability.1
How the calculation works
Calculate the probability an active member is still in service after the given years, and the cumulative chance they have withdrawn.
Retention = (1−w)^t; withdrawal = 1−retention 1Inputs and interpretation
Keep every input on the same valuation, timing, unit, and assumption basis. Interpret the output at the precision supported by those inputs rather than treating extra decimal places as additional certainty.
Assumptions and limitations
The calculation excludes mortality, retirement, disability, rehire, service-dependent withdrawal, and competing decrements.
References
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Advanced Long-Term Actuarial Mathematics Notation and Terminology — Society of Actuaries