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This calculator is provided as a retirement planning tool to help
you estimate your future retirement benefit. Calculations are
If you return to CalSTRS-covered employment, or if you are a
member of another California public retirement system, you may
restore past Defined Benefit refunded service credit by
redepositing your refunded contributions plus interest.
Estimate the number of installment payments or the installment
amount needed to finance your purchase of permissive service
credit or a redeposit.
Use this calculator to estimate the cost to purchase permissive
Check out our “Why Wait” and “What If” calculators to see if your
retirement savings are on track—and to see what a difference
a few years can make.