Why this tool is different
Almost every other calculator on this site works forward from your salary and years of service to project a pension you haven't started collecting yet. If you're already retired, that's the wrong direction — you already know your real annuity amount from OPM. This tool works backward from your actual statements instead of projecting anything, which is simpler and more accurate for anyone already drawing federal retirement income.
What this doesn't do
This deliberately stops at gross income with your FEHB premium subtracted — it doesn't model federal or state tax withholding, or Medicare Part B once you turn 65. For a TSP withdrawal amount to plug in here, the TSP Withdrawal Calculator can help you land on a number using the 4% rule, RMDs, or a fixed monthly draw.
A deeper look at your retirement income, including taxes is one input. Your full report combines pension, supplement, survivor election, and FEHB into one decision.
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