Federal FERS/TSP Retirement Calculation with optional Special Retirement Supplement (SRS)


A calculator fan asked me to write this up for federal employees with the FERS retirement plan to help project their retirement. It includes inputs for social security benefits where you must enter the estimated initial payment yourself, and also one for the special retirement supplement (SRS) benefit for qualified retirees who retire before 62.

Sorry, the earliest you can take Social Security is at 62

/ / Your Birthday (MM/DD/YYYY)
Retirement Age
Monthly Pension income
Pension COLA increases (%)
Monthly Pension (Pre-62) Supplement (SRS)
Beginning TSP/IRA/Roth Balance
Monthly TSP/IRA/Roth contribution
Estimated annual pre-retirement yield (%)
Estimated annual retirement yield (%)
Estimated annual contribution increase (%)
Your Estimated monthly Soc.Sec income
Your Age when Your Soc.Sec income starts
Spouse's Estimated monthly Soc.Sec income
Your Age when Spouse's Soc.Sec income starts
Soc.Sec COLA increases (%)
Desired future total monthly income (current dollars)
Life Expectancy
Estimated overall inflation (%)
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